WO2001088922A1 - Support d'enregistrement, procede d'enregistrement sur ce support, procede de commande de sortie, dispositif de lecture, procede de commande d'enregistrement/lecture, procede d'enregistrement, procede d'enregistrement/lecture et procede d'enregistrement et/ou procede de lecture - Google Patents
Support d'enregistrement, procede d'enregistrement sur ce support, procede de commande de sortie, dispositif de lecture, procede de commande d'enregistrement/lecture, procede d'enregistrement, procede d'enregistrement/lecture et procede d'enregistrement et/ou procede de lecture Download PDFInfo
- Publication number
- WO2001088922A1 WO2001088922A1 PCT/JP2001/004105 JP0104105W WO0188922A1 WO 2001088922 A1 WO2001088922 A1 WO 2001088922A1 JP 0104105 W JP0104105 W JP 0104105W WO 0188922 A1 WO0188922 A1 WO 0188922A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- recording medium
- management information
- recording
- copy
- information
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 155
- 238000000605 extraction Methods 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 17
- 238000001228 spectrum Methods 0.000 claims description 9
- 230000000873 masking effect Effects 0.000 claims description 7
- 238000007726 management method Methods 0.000 claims 189
- 230000008929 regeneration Effects 0.000 claims 1
- 238000011069 regeneration method Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 49
- 238000010586 diagram Methods 0.000 description 16
- 239000013256 coordination polymer Substances 0.000 description 7
- 238000003860 storage Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0021—Image watermarking
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
- G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
- G11B20/00753—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
- G11B20/00768—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
- G11B23/283—Security features, e.g. digital codes
- G11B23/284—Security features, e.g. digital codes on the record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/30—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture with provision for auxiliary signals
- G11B23/36—Signals on record carriers or on containers and recorded by the same method as the main recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
- G11B27/327—Table of contents
- G11B27/329—Table of contents on a disc [VTOC]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2201/00—General purpose image data processing
- G06T2201/005—Image watermarking
- G06T2201/0064—Image watermarking for copy protection or copy management, e.g. CGMS, copy only once, one-time copy
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/213—Read-only discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/216—Rewritable discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/218—Write-once discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2525—Magneto-optical [MO] discs
- G11B2220/2529—Mini-discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
Definitions
- the present invention relates to a recording medium on which content data is recorded, a recording method of the recording medium, an output control method, a reproducing apparatus, a recording and reproducing control method, a recording method, a recording and reproducing method, and a recording and / or reproducing method. In particular, it concerns the protection of content overnight.
- S CMS Serial Copy Management System
- C GMS Copy Generation Management System
- the copy management information of the SCMS uses two bits of information to manage the copy.
- the copy management information of this SCMS is not only copy-free and copy-prohibited, but also allows one-generation copy. Copy management over generations can be performed.
- the copy is managed using 2-bit information. If S CMS is (0, 0), copy-free, if (0, 1), one-generation copy is possible, if (C, 1), copy is prohibited. If the SCMS is (0, 1), copying of the original recording medium is allowed, but copying is also prohibited.
- copy management information As mentioned above, recording copy management information as a watermark has been considered for the purpose of copyright protection. It is conceivable to use the copy management information of SCM S as the copy management information. With the copy management information of S CMS, not only copy-free and copy prohibition, but also copy management over generations can be performed.
- the S CMS it is necessary to rewrite the copy management information when performing copy management over such a copy generation.
- the original copy management information S CMS is (0, 1), one generation copy is possible, so when copying the information on the original recording medium to another recording medium, the copy management information S The CMS needs to be rewritten from (0, 1) to (1, 1).
- the additional information that is recorded in the form of a war mark superimposed on the content data is inserted into the content data using spread spectrum or the like. For this reason, the additional information recorded as a war mark cannot be easily rewritten. Therefore, if the conventional SCMS is used as copy management information to be inserted as a watermark, one generation of copy is possible. A problem arises in that management of data becomes difficult.
- the copy management information of the SCS of the original storage medium is copied as it is.
- the copy management information SCMS on the duplicated recording medium will also be (0, 1). , 1), and there is a possibility that this recording medium will be used to copy it to another recording medium.
- an object of the present invention is to provide a recording medium, a recording method of a recording medium, an output control method, a reproducing apparatus, and a recording / reproducing control method which can easily perform copy management, reproduction management, and billing management over a plurality of generations.
- the present invention is a recording medium that records a plurality of management information prepared for each type of recording medium together with content data.
- the present invention embeds a plurality of management information prepared for each type of recording medium as data additional information of a content to be recorded,
- the present invention discriminates a type of a recording medium in which a plurality of pieces of management information prepared for each type of the recording medium are recorded together with content data,
- a recording method for a recording medium that performs recording control of content data read from a recording medium based on management information selected based on a result of discrimination of the recording medium among a plurality of pieces of management information read from the recording medium. It is.
- a plurality of pieces of management information prepared for each type of recording medium are embedded in content data, and a plurality of pieces of management information are recorded from a recording medium in which a plurality of pieces of management information are recorded in a predetermined area.
- a plurality of pieces of management information prepared for each type of recording medium are embedded in content data, and a plurality of pieces of management information are recorded from a recording medium in which a plurality of pieces of management information are recorded in a predetermined area.
- An extracting unit for extracting a plurality of pieces of management information from the content data read from the recording medium by the reading unit;
- a collation unit for collating the plurality of management information extracted by the extraction unit with the plurality of management information read from the recording medium by the reading unit;
- An output control unit for controlling the output of data of the content read based on the result of the collation by the collation unit.
- a plurality of pieces of management information prepared for each type of recording medium are embedded as additional information in content data, and a plurality of pieces of management information are recorded from a recording medium in which a plurality of pieces of management information are recorded in a predetermined area.
- multiple Read management information
- the present invention discriminates a type of a recording medium in which a plurality of pieces of management information including copy management information and prepared for each type of recording medium are recorded together with content data,
- this is a recording method for controlling the operation of recording the content data read from the recording medium on another recording medium based on the copy management information.
- the present invention discriminates a type of a recording medium that records identification information, copy generation information, copy management information, and a plurality of management information prepared for each recording medium type together with content data,
- the recording medium It is determined whether or not the recording medium is the original recording medium based on the management information read from the recording medium and the result of the determination of the type of the recording medium. If the result of the determination is that the recording medium is the original, This is a recording method in which the copy generation information is advanced by one generation, and the content read from the recording medium is recorded on another recording medium based on the copy management information.
- the present invention discriminates a type of a recording medium that records a plurality of pieces of management information prepared for each type of recording medium including copy generation information and copy management information together with content data, It is determined whether or not the recording medium is the original recording medium based on the management information read from the recording medium and the result of the determination of the type of the recording medium, and the result of the determination is that the recording medium is the original recording medium. At some point, playback of the recording medium is performed based on the management information.
- the present invention has an identification unit used to determine the type of a recording medium, and at least the first management information for a read-only recording medium and the second management information for a recordable recording medium.
- the type of the recording medium is determined by the identification unit of the recording medium recorded together with the content data,
- the first management information and the first management information are used together with the second management information from the recording medium.
- the first and the second are managed based on the second management information. This is a recording method for controlling the recording operation of the content data read from the recording medium together with the second management information on another recording medium.
- the present invention has an identification unit used to determine the type of a recording medium, and the identification unit of the recording medium in which at least management information including identification information, copy generation information, and copy management information is recorded together with content data. Determine the type of recording medium,
- the recording medium is determined based on the result of determining whether the A recording and / or reproducing method for controlling a recording and / or reproducing operation of a body.
- the present invention has an identification unit used to determine the type of a recording medium, and records content data in which a plurality of management information prepared for each type of recording medium is embedded as additional information.
- the copy management information S CMS-P for the read-only recording medium and the copy management information S CMS-R for the recordable recording medium are simultaneously recorded on the recording medium, and the recording medium to be reproduced is read. If the recording medium is a dedicated recording medium, copy control is performed according to the copy management information S CMS-P for the read-only recording medium. Copy control is performed in accordance with the copy management information S CMS-R.
- a read-only storage medium such as a CD or CD-ROM.
- Copying that poses a problem in terms of copyright protection can be performed from a read-only recording medium such as a CD or CD-ROM on which data of the original content is recorded, to a CD-R or CD-RW. It is a copy for a recordable recording medium.
- the original recording medium is a read-only recording medium
- (0, 1) is written as copy management information S CMS—P for the read-only recording medium
- copy management information S CMS for the recordable recording medium.
- (1, 1) is written as the scale
- the first generation copy from the original recording medium to the recordable recording medium is copy management information for the read-only recording medium.
- S CMS—P is (0, 1), so copying is allowed.
- the second generation copy is a copy from a recordable recording medium to a recordable recording medium, and copy management information for the recordable recording medium Since (1, 1) is copy-prohibited as SCMS-R, copy is prohibited. In this way, copy-free, one-generation copy permitted, and copy-prohibited control can be performed. Also, it is not necessary to rewrite the copy management information when controlling the first generation copy.
- the copy management information advanced by one generation is regarded as the current copy management information and the copy management is performed. As a result, generation management of the copy can be performed even if the copy management information is not rewritten.
- copy generation management when performing copy generation management, if copy generation management is performed on the premise that copy management information ⁇ copy generation information will be rewritten according to rules when copied, it will be recorded on a recording medium. If the original type information is different from the actual recording medium type and it is determined that the recording medium has been copied, the copy management information and copy generation information are forcibly rewritten according to the rules. become. For this reason, recording media copied without following the rules will not spread and copyright protection will be achieved. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a schematic diagram used for describing conventional copy management information
- FIG. 2 is a block diagram showing an example of a configuration of a recording apparatus to which the present invention is applied
- FIG. 3 is a recording diagram to which the present invention is applied.
- FIG. 4 is a schematic diagram used to explain copy control using a medium
- FIG. 4 is a block diagram showing an example of the configuration of a reproducing apparatus to which the present invention is applied
- FIG. 5 is an example of a reproducing apparatus to which the present invention is applied.
- FIG. 6 is a block diagram used in the description
- FIG. FIG. 7 is a schematic diagram for explaining copy control using a recording medium to which the present invention is applied
- FIG. 8 is a schematic diagram for explaining copy management information
- FIG. 9 is copy management.
- FIG. 10 is a schematic diagram used for explaining reproduction management information.
- FIG. 11 is a schematic diagram used for explaining reproduction management information.
- FIG. 12 is a schematic diagram used for explaining reproduction management information.
- FIG. 13 is a schematic diagram used to describe an example of managing a plurality of devices, and
- FIG. 14 is a schematic diagram used to describe an example of managing a plurality of devices.
- Fig. 15 is a schematic diagram of an example of the recording format of additional information recorded as a watermark
- Fig. 16 is a schematic diagram of another example of the recording format of additional information recorded as a watermark.
- FIG. 17 is a flow chart used for explaining another embodiment of the present invention
- FIG. FIG. 19 is a flow chart used in the description of another embodiment.
- FIG. 19 is a schematic diagram of still another example of a recording format of additional information to be recorded as a watermark
- FIG. FIG. 21 is a flowchart used to explain still another embodiment
- FIG. 21 is a flowchart used to explain still another embodiment of the present invention.
- a plurality of copy management information for each type of recording medium is prepared, and a plurality of copy management information for each type of recording medium are simultaneously recorded on one recording medium. Copy control is performed using copy management information corresponding to the type of recording medium.
- CD Code-immediate act Disc
- C Code-immediate act Disc
- Read-only recording media such as D-ROM (Compact Disc Read Only Memory) format optical discs (hereinafter simply referred to as CDs and CD-ROMs), CD-R (Compact Disc Recordable) formats and CDs R
- a recordable recording medium such as an optical disk of the W (Co immediately act Disc Rewritable) format (hereinafter, simply CD-R, CD-RW) is used.
- copy management information S CMS-P for read-only recording media such as CDs and CD-ROMs
- recordable recordings such as CD-Rs and CD-RWs
- Two pieces of copy management information S CMS-P and SCM S-R of copy management information S CMS-R for copy management information for media are prepared.
- recording media such as CDs and CD-ROMs are considered to be read-only because pits are formed by injection molding or the like, and recordable recording media such as CD-R and CD-RW Since data is optically recorded by an optical pickup, it may be considered for recording.
- Copy management information S CMS—P, S CMS—R may be recorded in one of these, copy management information S CMS—P, S CMS—R may be recorded in all of them, Of course, copy management information S CMS-P and S CMS-R may be recorded in some of these.
- CDs and CD-ROMs For recording media such as CDs and CD-ROMs, media created based on the master Using tampers, mass-produced disks are distributed and sold.
- the method of making this master and the method of making CDs and CD-ROMs are the same as those known.
- FIG. 2 shows the configuration of a recording device for producing a master.
- the input terminal 1 is supplied with the content data
- the input terminals 2 and 3 are supplied with copy management information S CMS-P and S CMS-R.
- the content data input to the input terminal 1 is supplied to the encoder 4 and error-correction encoded.
- the copy management information S CMS-P and S CMS-R from the input terminal 3 are supplied to a short-time mark generation circuit 7.
- the copy management information S CMS-P and S CMS R are included in the additional information of the war evening mark.
- the output of the watermark generation circuit 7 is superimposed on the content data input to the input terminal 1.
- the copy management information S CMS-P and S CMS-R input to the input terminal 2 are supplied to the subcode encoder 6.
- the copy management information S CMS—P, S CMS— is included in the sub code data. This subcode data is supplied to the modulation circuit 5.
- the output of the modulation circuit 5 is supplied to the optical pickup 9 via the RF amplifier 8.
- the optical pickup 9 records content data on the master 10 as a recording medium.
- the data recorded on the master 10 is superimposed with information of a photo mark including copy management information S CMS-P and S CMS-R.
- the subcode data includes copy management information S CMS-P and S CMS-R.
- Discs to be sold and distributed are mass-produced by stampers made based on the master 10 thus created.
- the two copy management information S CMS-P and S CMS-R are It is recorded simultaneously on one recording medium.
- the copy management information corresponding to the type of the recording medium is selected from the two recorded copy management information SCMS-P and SCMS-R, and the selected copy management information is selected. Copy control is performed according to the copy management information.
- the copy management information S CMS-P and S CMS-R the copy is managed using 2-bit information as in the copy management information of the S CMS. That is, if the copy management information S CMS-P and S CMS-R are (0, 0), copy-free is possible, if (0, 1) is one-generation copy, and if (1, 1), copy is prohibited.
- a read-only storage medium such as a CD or CD-ROM.
- Duplicates that pose a problem for copyright protection can be recorded from a read-only recording medium such as a CD or CD-ROM on which the original content data is recorded, such as a CD-R or CD-RW.
- This is a copy for a simple recording medium.
- the original content data is distributed on a read-only recording medium, and a copy that is a problem in copyright protection is a read-only copy.
- This is a copy from a recording medium to a recordable recording medium, and the type of recording medium is different between the recording medium on which the original content is recorded and the copied recording medium We pay attention to it.
- Fig. 3 shows the content using two copy management information, copy management information SCM S-P for a read-only recording medium and copy management information S CMS-R for a recordable recording medium.
- This shows the copy control when copying the data of FIG.
- the recording medium without hatching is a read-only recording medium
- the recording medium with hatching is a writable recording medium.
- the original recording medium 11A is a read-only recording medium such as a CD or CD-R ⁇ M.
- the original recording medium 11A has copy management information S CMS for a read-only recording medium. — (0, 0) is written as P and (0, 0) is written as the copy management information S CMS—R for the recordable recording medium.
- the recording medium 11 B is a recordable recording medium such as CD-R or CD-RW.
- the copy management information includes two types of copy management information: copy management information S CMS—P for a read-only recording medium and copy management information S CM S—R for a recordable recording medium. Since the original recording medium 11 A is a read-only recording medium, the copy management information SCMS-P for the read-only recording medium is checked. The copy management information SCMS-P for the read-only recording medium is (0, 0), and copying is permitted. Therefore, information can be copied from the recording medium 11A to the recording medium 11B. Therefore, the information of the recording medium 11A is copied to the recording medium 11B, and a first generation copy of the original recording medium 11A is created on the recording medium 11B.
- the recording medium 11 B corresponding to the first generation copy includes copy management information S CMS-P for the read-only recording medium recorded on the original recording medium 11 A and the copy management information for the writable recording medium.
- Copy management information SCMSR is recorded as it is. Therefore, the copy management information S CMS— P for the read-only recording medium is included in the recording medium 11 B of the first generation copy. (0, 0) is written as copy management information s for the recordable recording medium.
- the recording medium 11 C is a recordable recording medium such as CD-R or CD-RW.
- the recording medium 11B When copying information from the recording medium 11B to the recording medium 11C, the recording medium 11B is reproduced. At this time, the copy management information of the recording medium 11 B is checked. Since the recording medium 1 1B is a recordable recording medium, the copy management information SCMS-R for the recordable recording medium is checked (the copy management information SCMS-R for the recordable recording medium is (0 , 0), and copying is permitted, so that information can be copied from the recording medium 11 B to the recording medium 11 C. Therefore, the information on the recording medium 11 B can be copied to the recording medium 11 C. And a second generation copy of the original recording medium 11A is created on the recording medium 11C.
- the recording medium 11 C corresponding to the second generation copy includes copy management information S CMS-P for the read-only recording medium recorded on the recording medium 11 B and copy management information for the recordable recording medium.
- S CMS—R is recorded as is. Therefore, (0, 0) is written as copy management information S CMS-P for the read-only recording medium on the recording medium 11 C of the second generation copy, and the copy management for the recordable recording medium is performed.
- Information S CMS— (0, 0) is written as R.
- the original recording medium 12 A is a read-only recording medium such as a CD or a CD-ROM, and the original recording medium 12 A has copy management information S CMS for the read-only recording medium.
- the original recording medium 12 A is a read-only recording medium such as a CD or a CD-ROM, and the original recording medium 12 A has copy management information S CMS for the read-only recording medium.
- (0, 1) is written as P, and copy management information S CMS—R for recordable recording media is written (1, 1).
- Such information of the recording medium 12A is copied to the recording medium 12B, and a first generation copy of the recording medium 12A is created.
- the recording medium 12B is a recordable recording medium such as CD-R or CD-RW.
- the recording medium 12A When copying information from the recording medium 12A to the recording medium 12B, the recording medium 12A is reproduced, and at this time, the copy management information is checked. Since the original recording medium 12A is a read-only recording medium, the copy management information S CMS-P for the read-only recording medium is checked. The copy management information S CMS—P for the read-only recording medium is (0, 1), and one-generation copy is permitted. Therefore, information is copied from the recording medium 12A to the recording medium 12B. Therefore, the information of the recording medium 12A is copied to the recording medium 12B, and a first generation copy of the original recording medium 12A is created on the recording medium 12B.
- the recording medium 12 B which is a copy of this first generation, includes copy management information S CMS-P for the read-only recording medium recorded on the original recording medium 12 A and the copy management information for the recordable recording medium.
- Copy management information S CMS-R is recorded as it is. Therefore, (0, 1) is written as copy management information S CMS-P for the read-only recording medium on the recording medium 12 B of the first generation copy, and the copy management for the recordable recording medium is performed.
- Information (1, 1) is written as information SCM S-R.
- Recording medium 1 2C is C
- a recordable recording medium such as D-R or CD-RW.
- the recording medium 12B When copying information from the recording medium 12B to the recording medium 12C, the recording medium 12B is reproduced, and at this time, the copy management information is checked. Since the recording medium 12B is a recordable recording medium, the copy management information S CMS-R for the recordable recording medium is checked.
- the copy management information S CMS-R of the S CMS for recordable recording media is (1, 1), and copying is prohibited. Therefore, the information on the recording medium 11B cannot be copied to the recording medium 11C.
- the original recording medium 13A is a read-only recording medium such as a CD or a CD-ROM.
- (1, 1) is written as copy management information S CMS—P for a read-only recording medium, and original copy is prohibited as copy management information S CMS—R for a recordable recording medium. Therefore, (1, 0) is written in the sense that it cannot be copied to a recordable recording medium.
- Such information on the recording medium 13A is copied to the recording medium 13B, and a first generation copy of the recording medium 13A is created.
- the recording medium 13B is a recordable recording medium such as CD-R or CD-RW.
- the recording medium 13A When information is copied from the recording medium 13A to the recording medium 13B, the recording medium 13A is reproduced, and at this time, the copy management information is checked. Since the original recording medium 13 A is a read-only recording medium, the copy management information SCMS-P for the read-only recording medium is checked. You. The copy management information SCMS-P for the read-only recording medium is (1, 1), and copying is prohibited. For this reason, information cannot be copied from the recording medium 13A to the recording medium 13B.
- (1, 1) is written as copy management information S CMS—P for the read-only recording medium on the original recording medium 13A, and the copy management information S for the recordable recording medium is written. If (1, 0) is written as CMS-R, copying is prohibited.
- the copy management information SCMS-P for the read-only recording medium and the copy management information SCMS-R for the recordable recording medium are simultaneously recorded on the recording medium, and the recording medium to be reproduced is performed. If the is a read-only recording medium, the copy control is performed according to the copy management information S CMS-P for the read-only recording medium. If the recording medium to be reproduced is a recordable recording medium, recordable recording is possible. Copy control is performed according to the copy management information S CMS-R for the medium.
- FIG. 4 shows an example of a data reproducing apparatus in which copy control of a recording medium is performed using such two pieces of copy management information.
- an optical disk 101 is driven to rotate by a spindle motor 102.
- An optical pickup 103 for reproducing data from the optical disk 101 is provided.
- a feed motor for feeding the optical pickup 103 in the disk radial direction is provided.
- a servo circuit that controls the rotation of the spindle motor 102 A servo circuit for controlling focusing and tracking of the loop is provided.
- additional information using a watermark is superimposed.
- a watermark a method of adding additional information using spread spectrum, a method of adding additional information to lower bits of a signal or a higher-order coefficient at the time of compression, a method of adding additional information by using a masking effect, and the like are used.
- the additional information by the word mark includes copy management information consisting of copy management information SCMS-P for read-only recording media and copy management information SCMS-R for recordable recording media. I have.
- the optical disc 101 can record subcode data together with content data.
- the data of this subcode includes copy management information consisting of copy management information S CMS-P for a read-only recording medium and copy management information S CMS-R for a recordable recording medium. I have.
- the copy management information recorded as the additional information by the watermark and the copy management information in the subcode data are the same.
- the optical disc 101 is a read-only disc such as CD, CD-ROM, or CD2-ROM, and a recordable disc such as CD-R, CD-RW, CD2-R, or CD-RW. There is.
- the optical disk 101 is a read-only optical disk, it is assumed that the optical disk 101 contains the wobble information recorded by wobbling the pits in the track direction.
- the reproduction signal read from the optical disk 101 is supplied from the optical pickup 103 to the reproduction amplifier 104.
- the output signal of the reproduction amplifier 104 is supplied to the demodulation circuit 105.
- the demodulation circuit 105 demodulates the data of the output signal supplied from the reproduction amplifier 104. Demodulation times
- the output data of the path 105 is supplied to the error correction circuit 106 and also to the subcode decoder 107.
- the output signal of the reproduction amplifier 104 is supplied to the wobble detection circuit 113.
- the output of the c- wobble detection circuit 113 is supplied to the medium discrimination circuit 115.
- the medium discrimination circuit 115 discriminates the type of the reproduced optical disc 101 based on the output of the cobble detection circuit 113.
- the wobble detection circuit 113 detects wobble information recorded by wobbling the pits in a direction orthogonal to the track direction of the optical disc 101.
- the medium discriminating circuit 115 determines whether the disc is a read-only disc or a recordable disc according to whether or not the wobbled information can be detected. If the wobble information can be detected from the output of the wobble detection circuit 113, the optical disc 101 is a read-only disc, and if no wobble information can be detected, it is a recordable disc.
- the error correction circuit 106 performs an error correction process on the output data from the demodulation circuit 105.
- the output of the error correction circuit 106 is supplied to the switch circuit 109 and to the watermark detection circuit 110.
- the output data from the error correction circuit 106 via the switch circuit 109 is output from the data output terminal 121 via the switch circuit 118 and the D / A converter Supplied to 1 1 9
- the output of the D / A converter 119 is taken out from the analog signal output terminal 120.
- the output of the error correction circuit 106 is supplied to the watermark detection circuit 110, and the watermark detection circuit 110 detects additional information by the data mark in the content data.
- the additional information based on the detected watermark is supplied to the copy management information extraction circuit 111.
- the subcode data is included in the data reproduced from the optical disc 101, and the copy management information SCMS-P and SCMS-R are included in the subcode data.
- the output of the demodulation circuit 105 is supplied to the sub-code decoder 107, and the sub-code decoder 107 decodes the sub-code data.
- the output of the subcode decoder 107 is supplied to a copy management information extraction circuit 108.
- the medium discrimination signal is supplied from the medium discrimination circuit 115 to the copy management information extraction circuit 111 and the copy management information extraction circuit 108. As described above, the medium discriminating circuit 115 determines whether the optical disc 101 is a read-only disc or a recordable disc based on the presence or absence of a wobble signal. The medium determination circuit 1 15 outputs a medium determination signal corresponding to the determined recording medium.
- the copy management information extraction circuit 111 based on the medium determination signal from the medium determination circuit 115, the copy management information SCMS-P and SCMS-R The copy management information corresponding to the recording medium is selected.
- the medium discriminating circuit 115 determines that the optical disc 101 is a read-only disc
- the read-only copy management information included in the additional information of the short mark is read-only.
- the copy management information SCMS-P for the recording medium of this type is output and it is determined that the optical disc 101 is a recordable disc, the recording is performed as copy management information included in the information of the war mark.
- the copy management information SCMS-P and SCMS-R included in the subcode correspond to the copy corresponding to the recording medium. Management information is selected.
- the optical disc 101 is read-only by the medium discriminating circuit 115. If the disc is determined to be a disc, copy management information S CMS-P for a read-only recording medium is output as copy management information in the subcode, and the optical disc 101 is a recordable disc. If it is determined, copy management information S CMS-R for recordable recording media is output as copy management information in the subcode.
- the output of the copy management information extraction circuit 111 and the output of the copy management information extraction circuit 108 are supplied to the collation circuit 116.
- the copy management information S CM S—P or S CMS—R from the subcode from the copy management information extraction circuit 108 and the copy management information extraction circuit 111 from the copy management information extraction circuit 111 The copy management information S CMS—P or S CMS— in the information of the evening mark is compared.
- the copy management information S CMS—P, S CMS—R in the subcode and the copy management information S CMS—P, S CMS—R in the additional information of the warrior mark contain the same information.
- Information S CMS—P or S CMS—R should match P t As a result of the collation by the collation circuit 1 16, the copy management information in the subcode and the copy management in the additional information of the short mark If the information matches, the switch circuit 109 is turned on.
- the output of the matching circuit 1 16 is supplied to the decision circuit 1 17.
- the judgment circuit 117 controls the switch circuit 118 based on the copy management information S CMS-P or S CMS-R.
- the decision circuit 1 17 indicates that copying is permitted or one generation is permitted (see Fig. 8).
- the switch circuit 118 is turned on. Copy tube If the logical information S CMS— P or S CMS— is (1, 1), copying is prohibited and the switch circuit 118 is turned off.
- the copy management information S CMS—P or S CMS—R in the subcode from the copy management information extraction circuit 108 and the watermark information from the copy management information extraction circuit 111 When the copy management information SCMS-P or SCMS-R matches, the switch circuit 109 is turned on.
- Copy management information S CMS-P or S CMS-R is selected according to the type of recording medium. If the selected copy management information is (0, 0) or (0, 1), the switch circuit 118 is turned on. You. When the switch circuit 109 is ON and the switch circuit 118 is ON, the output of the optical disk 101 decoded by the error correction circuit 106 is output from the switch circuit 109 and the switch circuit 111. The data is output from the data output terminal 1 2 1 via 8. Therefore, if a recording device is connected to the data output terminal 121, data can be copied.
- the copy management information S CMS— of the copy management information is (1, 1), copying is prohibited (see FIG. 8), and the switch circuit 118 is turned off.
- the switch circuit 118 is off, the output of the optical disk 101 decoded by the error correction circuit 106 is not output from the data output terminal 121. For this reason, even if a recording device is connected to the data output terminal 121, data cannot be copied overnight.
- the copy management information S CMS—P and S CMS—R are recorded in the subcode and the watermark of the optical disc 101, the copy management information S CMS—P and S CMS—R By turning on and off the switch circuit 118, illegal copying can be prevented.
- FIG. 5 shows a recording device 150 connected to the reproducing device 100 shown in FIG. Then, the operation when an attempt is made to copy a disk is described.
- a read-only optical disc 101 A is mounted on the reproducing apparatus 100. (0, 1) is recorded as copy management information SCMS-P for the read-only recording medium in the subcode and the watermark information of the optical disk 101A, and the copy for the writable recording medium is performed. It is assumed that (1, 1) is recorded as the management information S CMS-R.
- the medium discrimination circuit 115 detects the wobbled information, so that the disc is determined to be a read-only disc.
- the subcode decoder 107 decodes the copy management information SCMS-P and SCMS-R recorded in the subcode of the reproduction data of the optical disc 101A. This subcode data is supplied to the copy management information extraction circuit 108. Since the disc 101 is judged to be a read-only disc by the medium discriminating circuit 115, the copy management information extracting circuit 108 outputs the copy management information S CMS— for the read-only recording medium. P is selected and output.
- copy management information S CMS P, which is recorded as additional information superimposed as a watermark during the content reproduced from the optical disc 101A, is superimposed.
- S CMS The scale is decoded.
- the additional information added as the watermark is supplied to the copy management information extraction circuit 111. Since the optical disc 101A is a read-only disc, the copy management information extraction circuit 111 selects the copy management information S CMS-P.
- the switch circuit 109 is activated. Turned on. At this time, copy Management information extraction circuit 108 The copy management information in the subcode selected in 08 and the copy management information in the watermark extracted in the copy management information extraction circuit 111 In accordance with the copy management information S CMS-P, the switch circuit 1 1 8 is controlled. Since the copy management information in the subcode and the copy management information in the watermark are both (0, 1), the switch circuit 118 is turned on by the output of the decision circuit 117.
- the reproduction information of the optical disk 101A is demodulated by the demodulation circuit 105, error-corrected by the error correction circuit 106, and then passed through the switch circuit 109 and the switch circuit 118.
- Data output from the data output terminal 1 2 1 and data from the data output terminal 1 2 1 are input to the input terminal 1 5 1 of the recording device 150 and the optical disk 1 mounted on the recording device 150 0 1 Recorded in B.
- the copy management information S CMS_P and S CMS-R record the same copy management information as the original optical disc 101 A on the duplicated optical disc 101 B, and are read-only.
- the copy management information SCMS-P for the recording medium of (1) is (0, 1)
- the copy management information SCMS-R for the recordable recording medium is (1, 1).
- the optical disc 101 B on which the data of the content of the optical disc 101 A is duplicated is mounted on the reproducing apparatus 100, and the recording can be performed on the recording apparatus 150.
- the optical disk 101C is mounted, and further copying is attempted.
- the medium discrimination circuit 115 determines that the disc is a recordable disc, since no pebble information is detected.
- the subcode decoder 107 decodes the copy management information S CMS—P and S CMS—R recorded in the subcode, and Since 10 IB is a recordable disc, the copy management information extraction circuit 108 selects and outputs the copy management information S CMS-R.
- the copy management information extraction circuit 111 selects and outputs the copy management information SCMS-R.
- the switch circuit 109 is turned on. Is done. At this time, the copy management information in the subcode selected by the copy management information extraction circuit 108 and the copy in the watermark extracted by the copy management information extraction circuit 111 are switched according to the management information. 1 1 and 8 are switched. Since both the copy management information in the subcode and the copy management information in the short mark are S CMS-R (1, 1), the switch circuit 118 is turned off by the output of the decision circuit 117. Is done.
- copy management information is recorded in both the subcode and the watermark. This is to strengthen copy management and improve the reliability of copy management.
- Copy management is used for either the subcode or the war mark.
- Information may be recorded.
- Copy management information may be recorded in both the subcode and the watermark, and copy management may be performed using either the subcode or the information of the watermark.
- Copy management information may be recorded in a place other than the subcode or the watermark.
- the copy management information may be recorded in a predetermined area of the recording medium, such as an area where TOC (Table Of Contents) data is recorded, a lead-in area, or the like. Copy management information may be recorded in the sector header.
- the original recording medium is a read-only recording medium, but the original recording medium is not always a read-only recording medium.
- the original recording medium is provided on a recordable recording medium.
- the original recording medium is a recordable recording medium.
- the original recording medium is a recordable recording medium. Even if the downloaded content is original, the original recording medium is a recordable recording medium.
- FIG. 7 shows an example in which the original recording medium is a recordable recording medium.
- the copy management information SCMS-P for the read-only recording medium and the copy management information S CMS for the recordable recording medium as described above.
- Two copy management information with R is used. Since information cannot be copied from a recordable recording medium to a read-only recording medium, copy management information S CMS—P for a read-only recording medium is used here. (1, 0) is used. If the copy management information S CMS-P for the read-only recording medium is (1, 0), the original recording medium is a recordable recording medium.
- an original recording medium 14A is a recordable recording medium.
- the recording medium 14A When copying information from the recording medium 14A to the recording medium 14B, the recording medium 14A is reproduced, and at this time, the copy management information is checked. Since the original recording medium 14A is a recordable recording medium, the copy management information SCMSR for the recordable recording medium is checked. The copy management information S CMS— for the recordable recording medium is (0, 0), and copying is permitted. Therefore, information is copied from the recording medium 14A to the recording medium 14B. Therefore, a first generation copy of the original recording medium 14A is created on the recording medium 14B.
- the recording medium 14B which is a copy of the first generation, includes copy management information S CMS-P for the read-only recording medium recorded on the original recording medium 14A and a copy for the recordable recording medium.
- Management information S CMS—R is recorded as is. Therefore, (1, 0) is recorded as copy management information S CMS-P for the read-only recording medium on the recording medium 14 B of the first generation copy, and the copy for the recordable recording medium is copied. (0, 0) is recorded as management information SC MS-R.
- the information of the recording medium 14B is copied to the recording medium 14C, and an attempt is made to create a second generation copy of the recording medium 14A.
- the recording medium 14B When copying information from the recording medium 14B to the recording medium 14C, the recording medium 14B is reproduced, and at this time, the copy management information is checked. Since the recording medium 14B is a recordable recording medium, the copy management information SCMS-R of the SCMS for the recordable recording medium is checked. The copy management information S CMS-R of the S CMS for recordable recording media is (0, 0), and copying is permitted. Therefore, the information is copied from the recording medium 14B to the recording medium 11C. Therefore, the information of the recording medium 14B is copied to the recordable recording medium 14C, and a second generation copy of the original recording medium 14A is created on the recording medium 14C.
- the recording medium 14C corresponding to the second generation copy includes copy management information S CMS-P for the read-only recording medium recorded on the recording medium 14B and copy management information for the recordable recording medium.
- SCMS—R is recorded as is. Therefore, (1, 0) is recorded as the copy management information S CMS-P of the read-only recording medium on the recording medium 14C of the second-generation copy, and the recording medium for the recordable recording medium is recorded. (0, 0) is recorded as the copy management information S CMS-R of S CMS.
- (1, 0) is recorded as copy management information S CMS—P of the read-only recording medium on the original recording medium 14A, and the S CMS for the recordable recording medium is used. If (0, 0) is recorded as the copy management information S CMS-R of the copy, it means that the copy is free.
- a c original recording medium 1 5 A writable recording medium that will be described to replicate the original recording medium 1 5 A, the recording medium 1 5 A of the O original casing, a read-only recording (1, 0) is recorded as copy management information SCMS-P for the medium, and (0, 1) is recorded as copy management information SCMS-R for the recordable recording medium.
- Such information of the recording medium 15A is copied to the recording medium 15B, and an attempt is made to create a first generation copy of the recording medium 15A.
- the recording medium 15A is reproduced, and at this time, the copy management information is checked.
- the copy management information SCMS-R for the recordable recording medium is checked.
- the copy management information S CMS-R for recordable recording media is (0, 1), and one-generation copy is permitted. Therefore, information is copied from the recording medium 15A to the recording medium 15B. Therefore, a first generation copy of the original recording medium 15A is created on the recording medium 15B.
- the copy management information is replaced, that is, rewritten so that only one generation can be recorded. That is, in the recording medium 15 B corresponding to the first generation copy, the copy management information S CMS— P of the SCM S for the read-only recording medium is (1, 0), and the S SMS for the recordable recording medium is The copy management information S CMS-R of the CMS is rewritten to (1, 1) so that copying is not possible next or further.
- the recording medium 15B When copying information from the recording medium 15B to the recording medium 15C, the recording medium 15B is reproduced, and at this time, the copy management information is checked. Since the recording medium 15B is a recordable recording medium, the copy management information SCMS-R for the recordable recording medium is checked. Copy management information S CMS-R for recordable recording media is (1, 1), and copying is prohibited. Therefore, the information on the recording medium 15B cannot be copied to the recording medium 15C.
- the original recording medium 16A is a recordable recording medium, and the original recording medium 16A includes a read-only recording medium. (1, 0) is recorded as copy management information SCMS-P for recording, and (1, 1) is recorded as copy management information SCMS-R for recordable recording media. The information of such a recording medium 16A is copied to a recordable recording medium 16B, and an attempt is made to create a first generation copy of the recording medium 16A.
- the recording medium 16A When copying information from the recording medium 16A to the recording medium 16B, the recording medium 16A is reproduced, and at this time, the copy management information is checked. Since the original recording medium 16A is a recordable recording medium, the copy management information SCMSR for the recordable recording medium is checked. The copy management information SCMS-R of the SMS for recordable recording media is (1, 1), and copying is prohibited. For this reason, information cannot be copied from the recording medium 16A to the recording medium 16B.
- (1, 0) is recorded as copy management information S CMS—P for the read-only recording medium on the original recording medium 16A, and the copy management information S CMS for the recordable recording medium is recorded. — If (1, 1) is recorded as, copy is prohibited.
- FIGS. 8 and 9 summarize the copy management information S CMS-P for the read-only recording medium and the copy management information S CMS-R for the recordable recording medium, and the copy control.
- bits bO to b3 indicate copy management information S CMS-P for a read-only recording medium
- bits b2 and b3 indicate copy management information S for a recording medium capable of recording. Indicates CMS-R.
- FIGS. 8 and 9 show the copy management information.
- the upper and lower bits of these 4 bits represent copy management information SCMS-P for a read-only recording medium and copy management information SCMS-R for a recordable recording medium.
- Fig. 8 shows the definition of copy management information SCMS-P, SCMS-, which is basically the same as normal SCMS.
- Fig. 9 shows the status of copy management information SCMS-P and SCMS-R and the copy operation at that time.
- copy management information corresponding to a plurality of recording media is prepared, and copy management information corresponding to the plurality of recording media is simultaneously recorded on one recording medium.
- the type of the recording medium is determined, the copy management information of the corresponding recording medium is selected, and the copy management is performed according to the selected copy management information.
- reproduction management information is introduced instead of the copy management information in the above-described first embodiment.
- Reproduction management is, for example, a control in which reproduction is not permitted when a predetermined amount is not paid, and reproduction permission is given when the predetermined amount is paid.
- reproduction management it is conceivable to make the payment amount different between when reproducing the original recording medium and when reproducing the duplicated recording medium.
- the copy management information in the first embodiment can be replaced with reproduction management information. Playback control can be performed.
- a reproduction tube for a read-only recording medium is used.
- Two pieces of playback control information are used: management information DRM-P and playback management information DRM-R for recordable recording media.
- the reproduction management information D RM-P and DRM-R are defined, for example, as shown in FIG.
- bits bO to b3 are reproduction management information DRM-P for a read-only recording medium
- bits b4 to b7 are reproduction management information DRM-R for a writable recording medium.
- the playback management information DRM for the read-only recording medium is used.
- P can be considered as playback management information for the original, and DRM-R as playback management information for the non-original.
- the lower two bits of the reproduction management information DRM—P and DRM—R are (1, 0), it indicates that the playback is charging, and at this time, the lower two bits of the reproduction management information DRM—P and DRM—R
- the bit represents a charging condition. For example, if the lower 2 bits are (0, 0), then it is 10 yen per song, and if (0, 1), it is 100 yen per song. For example, if the lower 2 bits are (1, 0), 1 yen will be charged every 30 seconds played, and if the lower 2 bits are (1, 1), 2 yen will be charged every 30 seconds played. .
- the recording medium to be reproduced is a read-only recording medium
- the reproduction management information DRM-P for the read-only recording medium follows the reproduction management information DRM-P for the read-only recording medium. (0, 0, 0, 0) So, it is called free playback.
- the recording medium to be reproduced is a writable recording medium
- the reproduction management information DR for the writable recording medium is used. Playback management information for a writable recording medium DRM-R (1, 0, 1, 0) Will be.
- the recording medium on which the information is duplicated is a recordable recording medium.
- the reproduction is controlled in accordance with the reproduction management information DRM-R for the recordable recording medium.
- the original recording medium is a read-only recording medium, and (0, 0, 0, 0) is recorded as the reproduction management information DRM-P on this original recording medium, and the recording medium is a recordable recording medium. If (1, 0, 1, 0) is recorded as the playback management information DRM-R, the type of the recording medium to be reproduced is determined, and as a result of the determination, the original recording medium is reproduced. Sometimes, free playback is performed, and as a result of the discrimination, when the information recorded on the recording medium on which the information is duplicated is reproduced, control is performed so that a charge of 1 yen per 30 seconds is made.
- FIG. 11 summarizes the reproduction control according to the state of the reproduction management information DRM-P for the read-only recording medium and the reproduction management information DRM-R for the recordable recording medium.
- bits bO to b7 indicate read-only reproduction management information DRM-P
- bits b4 to b7 indicate reproduction management information DRM-R for a recordable recording medium. I have.
- one generation of control is performed by using information for a read-only recording medium and information for a writable recording medium. That is, in the first embodiment, a read-only recording medium Copy control is performed on the original recording medium and its copy using the copy management information SCMS-P for copy and the copy management information SCMS-R for recordable recording medium. In the second embodiment, an original recording medium and its copy are reproduced using reproduction management information DRM-P for a read-only recording medium and reproduction management information DRM-R for a recordable recording medium. Reproduction conditions are controlled.
- control can be extended to multiple generations as shown in Fig. 12.
- the copy management information CP1 for the original recording medium, the copy management information CP2 for the first-generation copy recording medium, and the copy management information CP2 for the second-generation copy generation recording medium and the copy management information CP 3 is c reproduced are recorded simultaneously is determined, if the recording medium is original record medium, thus copying the condition of the copy management information CP 1 for the original recording medium
- the processing is performed, and if the recording medium is a copy of the first generation, the copy processing is performed according to the conditions of the copy management information CP2 for the recording medium of the copy of the first generation, and the recording medium for the copy of the copy of the second generation and thereafter If this is the case, the copy processing is performed in accordance with the conditions of the copy management information information CP3 for the recording medium of the second and subsequent copies.
- the second generation copy is prohibited, but if paid, such control as permission can be performed.
- the copy management information CP 1 for the original recording medium and the copy management information CP 2 for the recording medium of the first-generation copy indicate conditions of whether copying is possible. , Free copy.
- the copy management information CP2 for the recording media of the second and subsequent copies is free copy.
- billing conditions are indicated. This prohibits copying of the second generation and beyond, but controls such as permitting can be made with a fee.
- FIG. 13 shows that copying conditions can be set according to the characteristics of the recording medium. That is, in this example, CD copy management information CP 11, CD-R copy management information CP 12, hard disk drive management information CP 13, and a so-called MD (Mini Disc)
- CD copy management information CP11 to CP 15 are simultaneously recorded on the recording medium, and at the time of reproduction, the copy management information CP 11 to CP 15 is selected according to the device being reproduced. The copy is controlled by the copy management information according to.
- FIG. 14 is an example of copy management information recorded in copy management information CP 11, CP 12, CP 13, CP 14, and CP 15.
- the CD is the original
- the copy management information CP 11 for the CD is (0, 0, 0, 1).
- the copy management information CP 11 for CD is set to (0, 1, 1, 1) so that the copy of CD-R is prohibited.
- the management information CP 13 for the hard disk drive is (1, 0, 1, 0), and data can be temporarily and repeatedly recorded on the hard disk drive but cannot be played back.
- the MD sets the copy management information CP 14 for the MD to (0, 1, 1, 1) so that copying is prohibited.
- copying For memory cards, high-speed copying is possible, so copying is prohibited, and the copy for the memory card—management information CP 15 is set to (0, 1, 1, 0) so that only moves are possible.
- move here means that information has been copied from the source medium to the destination medium. Means that the reproduction of the copied information on the copy source medium is prohibited, and the information copied on the copy destination medium is enabled.
- a condition may be set such that copying is possible at 1 ⁇ speed, but copying is added at 4 ⁇ speed.
- “1x speed” means the standard recording and playback speed specified by the media standard when recording and reproducing media
- “4x speed” is 4 times that of "1x speed”, that is, This means four times the standard recording and playback speed.
- multiple types of copy management information, playback management information, and billing management information for each device to be played back are recorded at the same time.
- By selecting and setting copy conditions, playback conditions, and billing conditions corresponding to, copy management, playback management, and billing management can be performed for multiple generations. Note that all types of copy management information, reproduction management information, and billing management information for each device may be recorded, or one or several of these may be recorded. You may keep it.
- Copy management information Multiple types of copy management information, playback management information, and charging management information may be recorded simultaneously for each condition of original or duplicate. Further, media type information may be provided.
- FIG. 15 shows an example of the data configuration of a watermark that is superimposed on data of content recorded on an optical disc.
- the watermark information is recorded in units of 256 bits, superimposed on the content data.
- the war mark information is overwritten, for example, 16 times.
- a sync destination and a parity are provided.
- the sync is composed of, for example, a 14-bit predetermined pattern sync and an inverted version of the sync. This sync is provided with parity for error detection and correction. This parity allows the sink and its inverse Separated from sink.
- a 4-bit header is provided following the sink. This Warrior Mark data is overwritten 16 times.
- the header serves as a time code for counting the overwritten war mark.
- the copy write information sets whether or not copy protection is possible.
- copy protection can be set for each type of content so as to support the content such as audio and video.
- the type of the original media of this content is written. If it is original, the type of recording medium indicated by the identification information of the original media should match the type of recording medium being reproduced. By comparing the type of the recording medium indicated by the identification information of the original media with the type of the recording medium that is actually being reproduced, it can be determined whether the recording medium is original or non-original.
- the original copy status indicates copy and billing conditions when the recording medium is original.
- the non-original copy status indicates conditions for copying and charging when the recording medium is non-original.
- DRM Digital Rights Management
- a 128-bit encryption key is provided. Following this key, 16-bit generation management information is provided.
- the generation management information indicates whether it is an original, a copy, or, if it is a copy, the generation of the copy. In this example, it is quadruple-written. This generation management information is rewritten each time content is copied.
- the reason why the generation management information is written in quadruplicate is to improve reliability. In other words, since it is difficult to rewrite the information of the watermark, it is conceivable that the generation management information is not included in the CRC error detection block. If it is included in the error detection block, every time the generation is rewritten, the CRC code must be calculated and replaced. However, if they are not included in the CRC block, the reliability will be lost. Therefore, the generation management information is quadruplicated to improve reliability.
- identification information of the original medium is provided. From the identification information of the original media, the type of the original media can be determined. If the recording medium being reproduced is the original, the type of the recording medium indicated by the identification information of the original medium should be the same as the type of the recording medium actually reproduced. From this, by comparing the identification information of the original media with the type of the recording medium that is actually being reproduced, it is possible to determine whether the reproduced recording medium is the original or non-original.
- an original copy status and a non-original copy status are provided. If this recording medium is original, on the basis of the original copy status, copying or playback, the control of charging is performed t the recording medium is non-original, that is, when the copy, based on the non-original Le copy status, copy Ya Reproduction and charging control are performed.
- generation information is provided. With this generation information, processing according to the copy generation is possible.
- FIG. 16 shows a third embodiment.
- a plurality of copy management information corresponding to the type of the recording medium is simultaneously recorded, and the type of the recording medium on which the content data is recorded is determined. Copy management is performed using copy management information corresponding to this recording medium.
- the original type information and the copy management information are recorded on the recording medium, and the type of the recording medium obtained from the original type information and the type of the recording medium actually reproduced are determined.
- the recording medium is the original, and if it is determined that the recording medium is the original, copy using the copy management information recorded on the recording medium as it is. If it is determined that the recording medium is not the original recording medium, this recording medium is regarded as a copied recording medium, and the copy management It is carried out.
- FIG. 16 shows the structure of the watermark embedded in the content data in this case.
- the watermark data is embedded in the least significant bit of the content data, and 48 bits are processed as one information unit (packet).
- a watermark is embedded in the least significant bit of the content.
- a method using spread spectrum a method of detecting peak values and inserting a watermark, and a method of compressing higher-order coefficients are used.
- a method of inserting, a method of using masking, and the like can be used.
- a sync is provided at the beginning of the data of one packet (48 bits) inserted as a watermark.
- This sink Is used to detect and synchronize the beginning of the bucket.
- original type information for identifying what the original recording medium is is provided.
- the original type information for example, (0, 0) indicates that the original is a read-only medium (CD—DA (Compact Disc-Digital Audio) or CD—ROM (Compact Disc Read Only Memory)), and (0, 0) , 1) indicates that the original is a non-R ⁇ M recordable recording medium (such as CD-R (Compact Disc Recordable) or D-RW (Compact Disc Rewritable)), and (1, 0) indicates that the original is Hybrid Indicates that this is a recording medium (having a ROM area and a non-ROM area).
- CD—DA Compact Disc-Digital Audio
- ROM Compact Disc Read Only Memory
- the next two bits of the original information are used as copy management information. For example, if the copy management information is (0, 0), copy is prohibited, if (0, 1), one generation copy is permitted, and if (1, 1), copy free.
- the original type information recorded on the recording medium is different from the actual type of the recording medium, and if it is determined that the recording medium is a copied recording medium, at least one generation copy is not performed. Since the copy management information is considered to have been performed, the copy management information advanced by one generation is regarded as the current copy management information, and copy management is performed. As described above, when it is determined that the copy management information is not the original recording medium, the copy management information advanced by one generation is regarded as the copy management information of this time, and the copy management information is rewritten. If not, generation management of copies can be performed.
- the type of the recording medium obtained from the original type information is compared with the type of the recording medium that is actually reproduced to determine whether or not the recording medium is the original.
- copy management is performed based on the copy management information of the recording medium.
- the type of the recording medium obtained from the original type information is compared with the type of the recording medium being actually reproduced, and it is determined that the recording medium is not the original, one generation Copy management is performed based on the advanced copy management information.
- FIG. 17 is a flowchart showing the above processing.
- the type of the recording medium being reproduced is identified (step S11).
- the type of the recording medium is, for example, It can be determined based on whether or not the information can be detected.
- step S11 The type of the recording medium identified in step S11 is compared with the original type information read in step S12 to determine whether the recording medium to be reproduced is an original (step S11). S1 3).
- step S11 it is determined that the recording medium to be reproduced is a CD_ROM, and in step S12, when the original type information is (0, 0) indicating a read-only medium, the recording is performed. Since the media types match, the recording medium is determined to be the original. In contrast, in step S11, it is determined that the recording medium to be reproduced is a CD-ROM, and in step S12, the original type information indicates a non-ROM recording medium (0, 1). Sometimes, it is determined that the recording medium is not the original because the type of the recording medium is different.
- step S13 If it is determined in step S13 that the recording medium is the original recording medium, copy management is performed according to the copy management information (step S14). When it is determined in step S13 that the recording medium is not the original recording medium The copy management is performed based on the copy management information advanced by one generation.
- step S13 If it is determined in step S13 that the recording medium is not the original recording medium, it is determined whether the copy management information is (0, 1) (step S15).
- step S15 If it is determined in step S15 that the copy management information is not (0, 1), copy management is performed according to the copy management information (step S16). In other words, if the copy management information is (1, 1) and is copy-free, the copy management information is (1, 1) copy-free even if it advances one generation. If the copy management information is (0, 0) and copy is prohibited, the copy management information is (0, 0) copy prohibited even if the generation is advanced by one generation. Therefore, if the copy management information is (1, 1), copying is permitted. If the copy management information is (0, 0), copying is prohibited. If it is determined in step S15 that the copy management information is (0, 1), the copy management information is advanced by one generation, and the copy management information is regarded as (0, 0).
- step S17 If the copy management information is (0, 1) and one generation copy is permitted, the copy management information is prohibited from being copied (0, 0) after one generation. Therefore, if the copy management information is (0, 1), the copy management information is regarded as (0, 0), and copying is prohibited.
- copy management is performed assuming that the copy management information has been advanced by one generation. As described above, when it is determined that the recording medium is not the original recording medium, it is regarded as copy management information advanced by one generation. If copy management is performed, copy generation management can be performed even if the copy management information is not rewritten.
- the copy management information when the recording medium is not the original and the copy management information is (0, 1), it is processed as (0, 0), which is the copy management information advanced by one generation.
- the copy management information may be rewritten.
- steps S21 to S26 are the same as steps S11 to S16 in FIG.
- step S25 if the recording medium is not the original and the copy management information is (0, 1), in step S27, the copy management information is rewritten from (0, 1) to (0, 0). . Then, in step S26, a copy management operation is performed according to the copy management information.
- FIG. 19 shows still another example.
- copy generation information is provided.
- the copy generation information indicates the generation of the data recorded on the recording medium. Multiple generations of copy management can be performed using this copy generation information.
- This original type information indicates the type of the original recording medium. For example, if (0, 0, 0, 0), the disc is a CD-DA format recording medium, and (0, 0, 0, 1) ) For CD-DA2 format recording media, (0, 0, 1, 0) for SA (Super Audio) -CD format recording media, (0, 0, 1, 1) If the disc is a DVD (Digital Versatile Disc) audio format recording medium, use (0, 1, 0, 0) as a CD—R format recording medium, (0, 1, 0, 1) use CD 2— Disc as R-format recording medium, (0,1,1,0) for CD-RW format recording medium, (0,1,1,1,1) for CD2-RW format recording A disc as a medium, and (1, 0, 0, 0) indicates a disc as a recording medium in MD (Mini Disc) format. Also, (1, 1, 1, 1) indicates all recording media.
- the next two bits of the original type information are copy management information for copyright management.
- this copy management information is (0, 0) copy-free, (0, 1) allows only one generation copy, (1, 0) allows charge copy, (1, 1) If so, copying is prohibited.
- the next two bits of copy management information are generation information. For example, if the generation information is (0, 0), it is the original, if (0, 1), it is the first generation copy, if (1, 0), it is the second generation copy, and if (1, 1), it is the third generation copy. More than eyes.
- the next 12 bits of the copy generation information are used as billing information.
- charging information is recorded in the area next to the copy generation information.
- the next 12 bits of the billing information are reserved.
- a 16-bit CRC code for error detection is added.
- the copy generation information copy generation information indicates whether the data recorded on the recording medium is what th generation copy, copy It is rewritten each time it is performed.
- Original type information and copy generation information recorded on a recording medium Based on the type of the actual recording medium, it is determined whether or not this recording medium is original. If it is determined that the recording medium is not original, it is considered that at least one generation of copies has been made. Therefore, the copy generation information is advanced by one generation. In this way, copy management over multiple generations can be performed.
- FIG. 20 is a flowchart showing the above processing.
- the type of the recording medium that is being reproduced or to be copied is identified (step S51).
- the management information during the war mark is read (step S52). This management information includes the original type, copy management information, copy generation information, charging information, etc. shown in FIG.
- the recording medium may be original. Is checked (step S53). As a result, it is determined whether or not this recording medium is an original (step S54). For example, although the identification result of the recording medium in step S51 is a recordable recording medium, the original identification information is (0000) or the original identification information is (0000). Despite being 0 0), if the copy generation information is (0 1), there is no consistency between the two and it is determined that it is not the original recording medium. If it is determined in step S54 that the recording medium serving as the duplication source is the original, the generation information of the next generation recording medium is incremented by one, so the next copy generation information is incremented by one. (Step S55).
- the recording operation is controlled according to the copy generation information, the copy management information, and the billing information (step S56). That is, if the copy management information is (0, 0) and the copy is free, data copy is permitted. Copy If the management information is (0, 1) and one generation copy is permitted, data copy is permitted. If the copy management information is (1, 0) and accounting copy is permitted, data copying is permitted if accounting is performed according to the copy generation information and accounting information. If the copy management information is (1, 1) and copying is prohibited, data copying is prohibited.
- step S54 If it is determined in step S54 that the recording medium serving as the duplication source is not the original, the recording medium is not the original, and it is assumed that at least one generation of the copy has been obtained. As a result, the copy generation information is incremented by one (step S57).
- step S58 When data is copied, the generation information of the next-generation recording medium serving as a copy source is incremented by one, so that the next copy generation information is incremented by one (step S58).
- step S57 the copy generation management information is incremented by one, and as the copy generation management information, copy management is performed with the generation in which this one generation is incremented.
- copy management is performed using management information.
- reproduction management may be performed.
- FIG. 21 shows an example in which playback management is performed using management information.
- steps S61 to S64 are the same as steps S51 to S54 in FIG.
- step S64 If it is determined in step S64 that the medium is an original recording medium, the reproducing operation is controlled in step S65 according to the management information. For example, as shown in Fig. 10, when there is content data that requires charging for playback of the content recorded on the recording medium in the evening. In, the content data is reproduced when the charging process is normally performed based on the charging information in the management information. Then, the next copy generation information is incremented (step S66). The recording operation is controlled according to the copy generation information, the copy management information, and the billing information (step S67).
- step S64 If it is determined in step S64 that the recording medium is not the original recording medium, the reproduction is not performed since the copy generation information has not been rewritten even though at least one generation has been copied. It may be prohibited (step S68).
- the copy generation information is incremented (step S69), and the reproduction operation is controlled according to the copy generation information, the copy management information, and the billing information (step S69). S70). Then, when copying is performed next, the generation is increased by one, so the copy one generation information is incremented by one (step S71).
- the recording operation is controlled according to the copy generation information, the copy management information, and the billing information (step S72).
- the copy generation management information has been incremented by one, and as the copy generation management information, copy management is performed with the generation in which this one generation has been incremented.
- the original type information recorded on the recording medium is different from the actual type of the recording medium, and it is determined that the recording medium is a copied recording medium, Since it is considered that at least one generation of copy has been performed, copy management is performed by regarding the copy management information advanced by one generation as the current copy management information. As a result, generation management of the copy can be performed even if the copy management information is not rewritten.
- the generation management of the copy is performed on the assumption that the copy management information and the copy generation information are rewritten according to the rules when the copy is made, the original generation recorded on the recording medium is assumed.
- the copy management information and copy generation information will be forcibly rewritten according to the rules. . For this reason, recording media copied without following the rules will not spread, and copyright protection can be achieved.
- a recording medium such as a CD-DA disk or a CD-ROM disk on which content data is recorded is copied to a recordable recording medium such as a CD-R disk or a CD-RW disk.
- a recordable recording medium such as a CD-R disk or a CD-RW disk.
- the copy management information SCMS-P for the read-only recording medium and the copy management information SCMS-R for the recordable recording medium are simultaneously recorded, and the recording medium to be reproduced is read. If the recording medium is a dedicated recording medium, copy control is performed according to the copy management information SCMS-P for the read-only recording medium. If the recording medium to be played back is a recordable recording medium. Copy for a recordable recording medium Copy control is performed according to the management information SCMS-R. As a result, copy control over a plurality of generations can be performed without rewriting copy management information.
- the reproduction management information for the read-only recording medium and the reproduction management information for the recordable recording medium are recorded, the reproduction can be controlled depending on whether it is an original or a copy. If the accounting management information for the read-only recording medium and the accounting management information for the recordable recording medium are recorded, the reproduction can be controlled depending on whether the original or a copy.
- the copy management information advanced by one generation is regarded as the current copy management information and the copy management is performed. As a result, copy generation management can be performed even if the copy management information has not been rewritten.
- a recording medium, a recording method of a recording medium, an output control method, a reproducing apparatus, a recording / reproducing control method, a recording method, a recording / reproducing method, and a recording / recording / reproducing method are a CD format. This is useful for protecting copyright when copying data from a CD-R disc to a CD-R or CD-RW formatted disc.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/591,161 US7369473B2 (en) | 2000-05-18 | 2001-05-17 | Record medium, recording method for record medium, output controlling method, reproducing apparatus, record and reproduction controlling method, recording method, record and reproduction method, and recording and/or reproducing method |
EP01932107A EP1288948B1 (en) | 2000-05-18 | 2001-05-17 | Recording medium, recording medium recording method, output control method, reproducing apparatus, recording/reproducing control method, recording method, recording/reproducing method, and recording and/or reproducing method |
DE60134015T DE60134015D1 (de) | 2000-05-18 | 2001-05-17 | Aufzeichnungsmedium, aufzeichnungsverfahren für aufzeichnungsmedium, ausgangsreglungsverfahren, wiedergabegerät, aufzeichnungs/wiedergabereglungsverfahren, wiedergabegerät, aufzeichnungs/wiedergabereglungsverfahren, aufzeichnungsverfahren, aufzeichnungs/wiedergabeverfahren und aufzeichnungs und/oder wiedergabeverfahren |
US10/031,023 US7149175B2 (en) | 2000-05-18 | 2001-05-17 | Recording medium, recording medium recording method, output control method, reproducing apparatus, recording/reproducing control method, recording method, recording/reproducing method, and recording and/or reproducing method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000146774 | 2000-05-18 | ||
JP2000-146774 | 2000-05-18 | ||
JP2000196897A JP2002042413A (ja) | 2000-05-18 | 2000-06-29 | データ記録媒体、データ記録方法及び装置、データ再生方法及び装置、データ記録再生方法及び装置、データ送信方法及び装置、データ受信方法及び装置、コンテンツデータ |
JP2000-196897 | 2000-06-29 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10031023 A-371-Of-International | 2001-05-17 | ||
US11591161 Division | 2006-11-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001088922A1 true WO2001088922A1 (fr) | 2001-11-22 |
Family
ID=26592150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/004105 WO2001088922A1 (fr) | 2000-05-18 | 2001-05-17 | Support d'enregistrement, procede d'enregistrement sur ce support, procede de commande de sortie, dispositif de lecture, procede de commande d'enregistrement/lecture, procede d'enregistrement, procede d'enregistrement/lecture et procede d'enregistrement et/ou procede de lecture |
Country Status (6)
Country | Link |
---|---|
US (2) | US7149175B2 (ja) |
EP (1) | EP1288948B1 (ja) |
JP (1) | JP2002042413A (ja) |
CN (1) | CN100458961C (ja) |
DE (1) | DE60134015D1 (ja) |
WO (1) | WO2001088922A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7549176B2 (en) | 2003-07-14 | 2009-06-16 | Sony Corporation | Recording medium, information playback apparatus and method, and information recording and playback apparatus |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7644282B2 (en) | 1998-05-28 | 2010-01-05 | Verance Corporation | Pre-processed information embedding system |
US6737957B1 (en) | 2000-02-16 | 2004-05-18 | Verance Corporation | Remote control signaling using audio watermarks |
US7050368B2 (en) * | 2001-01-12 | 2006-05-23 | Sony Corporation | Data copying managing method and device and copy managing system |
US20040199780A1 (en) * | 2002-03-22 | 2004-10-07 | Heung-Chan Seung | Copy-protected optical recording medium, a method for driving therefor and a method of manufacturing thereof |
JP2003281821A (ja) * | 2002-03-22 | 2003-10-03 | Sony Corp | 書き込み可能な記録媒体、識別情報の記録方法、情報記録装置、識別情報の再生方法および情報再生装置 |
AU2003215856A1 (en) * | 2002-04-18 | 2003-10-27 | Koninklijke Philips Electronics N.V. | Method of copy detection and protection using non-standard toc entries |
CN100385518C (zh) * | 2002-05-01 | 2008-04-30 | Lg电子株式会社 | 高密度只读光盘及使用光盘的光盘设备和方法 |
CN100514458C (zh) * | 2002-07-02 | 2009-07-15 | Lg电子株式会社 | 一种在/从记录介质记录/再现数据的装置和方法 |
JP4191962B2 (ja) * | 2002-07-23 | 2008-12-03 | パイオニア株式会社 | 記録媒体判別装置およびその方法 |
EP1552454B1 (en) | 2002-10-15 | 2014-07-23 | Verance Corporation | Media monitoring, management and information system |
JP4471067B2 (ja) * | 2003-02-17 | 2010-06-02 | ソニー株式会社 | コンテンツ複製管理システム、複製管理装置、複製管理方法、コンテンツ複製装置及びコンテンツ複製方法 |
KR101051000B1 (ko) * | 2003-02-19 | 2011-07-26 | 엘지전자 주식회사 | 고밀도 광디스크와, 그에 따른 불법 복제 판별방법 |
CN1764970A (zh) * | 2003-03-24 | 2006-04-26 | 松下电器产业株式会社 | 记录装置和内容保护系统 |
KR20040092649A (ko) * | 2003-04-24 | 2004-11-04 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
KR100974449B1 (ko) * | 2003-04-24 | 2010-08-10 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
KR100972831B1 (ko) * | 2003-04-24 | 2010-07-28 | 엘지전자 주식회사 | 엔크립트된 데이터의 보호방법 및 그 재생장치 |
KR100974448B1 (ko) * | 2003-04-24 | 2010-08-10 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
JP4063713B2 (ja) * | 2003-05-26 | 2008-03-19 | パイオニア株式会社 | 情報再生装置及び情報再生方法 |
CN1806290A (zh) * | 2003-06-20 | 2006-07-19 | 柯尼卡美能达影像株式会社 | 数据记录装置以及程序 |
JP4275471B2 (ja) * | 2003-07-02 | 2009-06-10 | パイオニア株式会社 | 情報記録媒体、情報再生装置及び情報再生方法 |
US20060239501A1 (en) | 2005-04-26 | 2006-10-26 | Verance Corporation | Security enhancements of digital watermarks for multi-media content |
WO2005098832A2 (en) * | 2004-03-26 | 2005-10-20 | Warner Bros. Entertainment Inc. | Method of foiling copy protection for dvds |
US20050271364A1 (en) * | 2004-03-26 | 2005-12-08 | Collar Bradley T | Method of foiling copy protection for DVDs |
JP4592517B2 (ja) * | 2005-06-30 | 2010-12-01 | 株式会社東芝 | 情報処理システムおよび電子機器 |
US8020004B2 (en) | 2005-07-01 | 2011-09-13 | Verance Corporation | Forensic marking using a common customization function |
US8781967B2 (en) | 2005-07-07 | 2014-07-15 | Verance Corporation | Watermarking in an encrypted domain |
WO2007041170A2 (en) * | 2005-09-29 | 2007-04-12 | Contentguard Holdings, Inc. | System for digital rights management using advanced copy with issue rights and managed copy tokens |
JP2007193579A (ja) * | 2006-01-19 | 2007-08-02 | Tokyo Electron Ltd | 基板処理装置、ライセンス管理プログラム、ライセンス情報提供装置、ライセンス情報提供プログラム、ライセンス管理システム及び記録媒体 |
EP2048662B1 (en) * | 2006-08-03 | 2018-01-10 | Panasonic Intellectual Property Management Co., Ltd. | Recording medium, data recording apparatus, data reproducing apparatus and data recording method |
US7613869B2 (en) * | 2006-11-27 | 2009-11-03 | Brigham Young University | Long-term digital data storage |
JP4933932B2 (ja) * | 2007-03-23 | 2012-05-16 | ソニー株式会社 | 情報処理システム、情報処理装置、情報処理方法、プログラム |
JP5000477B2 (ja) * | 2007-12-26 | 2012-08-15 | 日立公共システムエンジニアリング株式会社 | コンテンツデータ、コンテンツ不正検出のプログラム、装置及び方法 |
US20100306859A1 (en) * | 2009-05-29 | 2010-12-02 | Hank Risan | Secure media copying and/or playback in a usage protected frame-based work |
JP5361625B2 (ja) | 2009-09-09 | 2013-12-04 | 株式会社東芝 | アクセス制御システム、装置及びプログラム |
CN102055747B (zh) * | 2009-11-06 | 2014-09-10 | 中兴通讯股份有限公司 | 获取密钥管理服务器信息的方法、监听方法及系统、设备 |
US9607131B2 (en) | 2010-09-16 | 2017-03-28 | Verance Corporation | Secure and efficient content screening in a networked environment |
US8682026B2 (en) | 2011-11-03 | 2014-03-25 | Verance Corporation | Efficient extraction of embedded watermarks in the presence of host content distortions |
US8923548B2 (en) | 2011-11-03 | 2014-12-30 | Verance Corporation | Extraction of embedded watermarks from a host content using a plurality of tentative watermarks |
US8615104B2 (en) * | 2011-11-03 | 2013-12-24 | Verance Corporation | Watermark extraction based on tentative watermarks |
US8745403B2 (en) | 2011-11-23 | 2014-06-03 | Verance Corporation | Enhanced content management based on watermark extraction records |
US9323902B2 (en) | 2011-12-13 | 2016-04-26 | Verance Corporation | Conditional access using embedded watermarks |
US9571606B2 (en) | 2012-08-31 | 2017-02-14 | Verance Corporation | Social media viewing system |
US8869222B2 (en) | 2012-09-13 | 2014-10-21 | Verance Corporation | Second screen content |
US9106964B2 (en) | 2012-09-13 | 2015-08-11 | Verance Corporation | Enhanced content distribution using advertisements |
US9262793B2 (en) | 2013-03-14 | 2016-02-16 | Verance Corporation | Transactional video marking system |
US9251549B2 (en) | 2013-07-23 | 2016-02-02 | Verance Corporation | Watermark extractor enhancements based on payload ranking |
US9208334B2 (en) | 2013-10-25 | 2015-12-08 | Verance Corporation | Content management using multiple abstraction layers |
EP3117626A4 (en) | 2014-03-13 | 2017-10-25 | Verance Corporation | Interactive content acquisition using embedded codes |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0955731A (ja) * | 1995-08-11 | 1997-02-25 | Sony Corp | 信号伝送方法、信号記録媒体及び信号再生装置 |
JPH09130766A (ja) * | 1995-10-26 | 1997-05-16 | Sony Corp | テレビジョン信号の伝送または記録方法、および記録装置 |
JPH09179758A (ja) * | 1995-12-25 | 1997-07-11 | Fujitsu Ltd | データ管理装置及びデータ記録媒体 |
JPH09274774A (ja) * | 1996-04-02 | 1997-10-21 | Sony Corp | 記録媒体及びコピー判別方法 |
JPH103745A (ja) * | 1996-06-12 | 1998-01-06 | Sony Corp | 記録媒体、デジタルコピー管理方法、再生装置、及び記録装置 |
JPH10312636A (ja) * | 1997-05-08 | 1998-11-24 | Sony Corp | 信号処理装置および信号処理方法、並びに記録媒体 |
JP2000048478A (ja) * | 1998-05-26 | 2000-02-18 | Yamaha Corp | ディジタルコピー制御方法及びそれを用いた装置 |
JP2000115728A (ja) * | 1998-10-07 | 2000-04-21 | Sony Corp | 映像信号伝送システム、映像信号出力装置、映像信号処理装置および映像信号伝送方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3141242B2 (ja) * | 1990-08-24 | 2001-03-05 | ソニー株式会社 | 光ディスク記録装置 |
JP3078686B2 (ja) | 1992-10-05 | 2000-08-21 | 三菱電機株式会社 | 光ディスク、光ディスク駆動装置および光ディスクの書き込み読み出し方法 |
JP3991178B2 (ja) | 1998-11-11 | 2007-10-17 | ソニー株式会社 | 複製世代管理方法、情報信号記録装置、情報信号出力装置および情報信号再生装置 |
-
2000
- 2000-06-29 JP JP2000196897A patent/JP2002042413A/ja active Pending
-
2001
- 2001-05-17 DE DE60134015T patent/DE60134015D1/de not_active Expired - Lifetime
- 2001-05-17 EP EP01932107A patent/EP1288948B1/en not_active Expired - Lifetime
- 2001-05-17 US US10/031,023 patent/US7149175B2/en not_active Expired - Fee Related
- 2001-05-17 WO PCT/JP2001/004105 patent/WO2001088922A1/ja active IP Right Grant
- 2001-05-17 CN CNB01801335XA patent/CN100458961C/zh not_active Expired - Fee Related
- 2001-05-17 US US11/591,161 patent/US7369473B2/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0955731A (ja) * | 1995-08-11 | 1997-02-25 | Sony Corp | 信号伝送方法、信号記録媒体及び信号再生装置 |
JPH09130766A (ja) * | 1995-10-26 | 1997-05-16 | Sony Corp | テレビジョン信号の伝送または記録方法、および記録装置 |
JPH09179758A (ja) * | 1995-12-25 | 1997-07-11 | Fujitsu Ltd | データ管理装置及びデータ記録媒体 |
JPH09274774A (ja) * | 1996-04-02 | 1997-10-21 | Sony Corp | 記録媒体及びコピー判別方法 |
JPH103745A (ja) * | 1996-06-12 | 1998-01-06 | Sony Corp | 記録媒体、デジタルコピー管理方法、再生装置、及び記録装置 |
JPH10312636A (ja) * | 1997-05-08 | 1998-11-24 | Sony Corp | 信号処理装置および信号処理方法、並びに記録媒体 |
JP2000048478A (ja) * | 1998-05-26 | 2000-02-18 | Yamaha Corp | ディジタルコピー制御方法及びそれを用いた装置 |
JP2000115728A (ja) * | 1998-10-07 | 2000-04-21 | Sony Corp | 映像信号伝送システム、映像信号出力装置、映像信号処理装置および映像信号伝送方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1288948A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7549176B2 (en) | 2003-07-14 | 2009-06-16 | Sony Corporation | Recording medium, information playback apparatus and method, and information recording and playback apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE60134015D1 (de) | 2008-06-26 |
EP1288948A4 (en) | 2005-12-21 |
EP1288948B1 (en) | 2008-05-14 |
JP2002042413A (ja) | 2002-02-08 |
EP1288948A1 (en) | 2003-03-05 |
US20070047396A1 (en) | 2007-03-01 |
US7149175B2 (en) | 2006-12-12 |
CN1381054A (zh) | 2002-11-20 |
US20030012098A1 (en) | 2003-01-16 |
US7369473B2 (en) | 2008-05-06 |
CN100458961C (zh) | 2009-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2001088922A1 (fr) | Support d'enregistrement, procede d'enregistrement sur ce support, procede de commande de sortie, dispositif de lecture, procede de commande d'enregistrement/lecture, procede d'enregistrement, procede d'enregistrement/lecture et procede d'enregistrement et/ou procede de lecture | |
EP1126453B1 (en) | Multimedia copy control system and method using digital data recording medium and optical disc reproducing apparatus | |
JP3780320B2 (ja) | ビデオ識別特徴を用いた種々の記録媒体用コピープロテクト方法及び装置 | |
US6971024B1 (en) | Recording medium, data recording method and apparatus, data reproducing method and apparatus, and copying control method | |
US20030185130A1 (en) | System for copy protection of recorded information | |
JP4957936B2 (ja) | コンテンツ信号再生装置、コンテンツ信号再生方法 | |
JP2005227894A (ja) | データ記録方法及びデータ記録装置、並びにデータ記録システム | |
TW200423050A (en) | Recording medium, apparatus for forming the recording medium, and apparatus and method for reproducing the recording medium | |
JP2000508813A (ja) | 記録信号のコピー防止システム | |
JP2001507849A (ja) | 記録担体のコピー保護方法、コピー保護された記録担体およびアクセス制御情報を検出する方法 | |
JP3916804B2 (ja) | コンテンツの記録媒体及びその再生装置 | |
US20080013427A1 (en) | Data recording medium, data playback apparatus and method, data copy recording apparatus and method, and data output apparatus and method | |
JP4091602B2 (ja) | 高密度光ディスクと、その光ディスクへの暗号化記録方法及び光ディスクからの再生方法 | |
JP2003037589A (ja) | データ記録装置および方法、並びにデータ再生装置および方法 | |
TWI241578B (en) | A recordable optical disk | |
JP4501318B2 (ja) | データ記録媒体、データ記録方法および装置、データ再生方法および装置、データ記録再生方法および装置 | |
JPH11306546A (ja) | 光記録媒体及び記録媒体再生装置 | |
JP2002367292A (ja) | データ記録媒体、データ記録方法、データ記録装置、データ再生方法、データ再生装置、およびコンテンツデータ | |
AU2004200956B2 (en) | Recording medium, data reproducing method and apparatus, and copy control method | |
JP2006518529A (ja) | 記録媒体、記録媒体の製造装置及び記録媒体の再生装置並びに再生方法 | |
JP2002190157A (ja) | 記録媒体、記録再生装置、及び、記録再生方法 | |
JP2004164777A (ja) | 不正コピー判定機能付プログラムおよび同プログラムを記録した記録媒体 | |
JP2002140863A (ja) | データ記録装置および方法、データ再生装置および方法 | |
TW200416724A (en) | Recording medium with an optional information and apparatus and methods for forming, recording, reproducing and controlling reproduction of the recording medium |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10031023 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 01801335X Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001932107 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2001932107 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2001932107 Country of ref document: EP |