WO2005064476A1 - コンテンツ記録再生装置及びコンテンツ記録再生方法、情報処理装置、並びにコンテンツ記録再生システム - Google Patents
コンテンツ記録再生装置及びコンテンツ記録再生方法、情報処理装置、並びにコンテンツ記録再生システム Download PDFInfo
- Publication number
- WO2005064476A1 WO2005064476A1 PCT/JP2004/019416 JP2004019416W WO2005064476A1 WO 2005064476 A1 WO2005064476 A1 WO 2005064476A1 JP 2004019416 W JP2004019416 W JP 2004019416W WO 2005064476 A1 WO2005064476 A1 WO 2005064476A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- recording
- content
- data
- content data
- reproducing
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 131
- 230000010365 information processing Effects 0.000 title claims description 60
- 238000012217 deletion Methods 0.000 claims abstract description 96
- 230000037430 deletion Effects 0.000 claims abstract description 96
- 238000012545 processing Methods 0.000 claims description 83
- 230000004044 response Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 230000008707 rearrangement Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000015654 memory Effects 0.000 abstract description 40
- 230000003287 optical effect Effects 0.000 description 30
- 238000007726 management method Methods 0.000 description 21
- 238000012546 transfer Methods 0.000 description 18
- 102100031830 Afadin- and alpha-actinin-binding protein Human genes 0.000 description 16
- 101710182459 Afadin- and alpha-actinin-binding protein Proteins 0.000 description 16
- 238000012937 correction Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 14
- BCJNRNBOQWJRIM-QFIPXVFZSA-N (2s)-3-(4-cyanonaphthalen-1-yl)oxy-n-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide Chemical compound O=C([C@@](O)(COC=1C2=CC=CC=C2C(C#N)=CC=1)C)NC1=CC=C(C#N)C(C(F)(F)F)=C1 BCJNRNBOQWJRIM-QFIPXVFZSA-N 0.000 description 11
- 230000006870 function Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 8
- 230000005236 sound signal Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000007906 compression Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000013523 data management Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000005374 Kerr effect Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 108010076504 Protein Sorting Signals Proteins 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 101000969688 Homo sapiens Macrophage-expressed gene 1 protein Proteins 0.000 description 1
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 1
- 102100021285 Macrophage-expressed gene 1 protein Human genes 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- SHGAZHPCJJPHSC-YCNIQYBTSA-N all-trans-retinoic acid Chemical compound OC(=O)\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C SHGAZHPCJJPHSC-YCNIQYBTSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
-
- 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
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
-
- 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
- G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
-
- 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
- G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than 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
- 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
- G11B27/34—Indicating arrangements
-
- 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
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
-
- 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
- G11B2220/60—Solid state media
- G11B2220/65—Solid state media wherein solid state memory is used for storing indexing information or metadata
Definitions
- the present invention relates to a content recording / reproducing apparatus, a content recording / reproducing method, an information processing apparatus, and a content recording / reproducing system.
- the present invention relates to a content recording / reproducing device and a content recording / reproducing method for restoring deleted content, and a content recording / reproducing system for recording stored content on an external device or a recording medium.
- Recording media such as optical recording media, semiconductor memories, and magnetic recording media can store various types of information such as music content, video content, and text. Therefore, if there is a device that can record and reproduce data in different formats, the user only needs to carry one recording medium to record or reproduce music content in some cases, and to capture images captured by a digital camera or the like in some cases. Data can be recorded on this recording medium.
- the capacity of the recording medium is limited, so that new information cannot be recorded one after another.
- the remaining storage capacity of the recording medium becomes very small, the user may delete old data and information recorded on the recording medium instead of securing an area for recording new information. We have to give up adding new information.
- the recording / reproducing apparatus can be connected to an external device such as a personal computer
- the user searches the connected external device for the deleted information by relying on his / her own memory. Then you have to get it again.
- a user who has purchased such copyright-managed content should be able to check out the content to another device and use it within the limited number of times.
- the host device such as a personal computer is checked out. If you delete the file on the checkout destination device, the host will not be able to check in the content the next time it is connected, and the number of checkouts will be kept constant. In such a case, if the number of check-outs is exceeded, the content deleted on the recording / reproducing apparatus side cannot be used.
- the checked-out content may not be reusable on the host device side or may not be able to be checked out to another device again.
- Patent Document 1 JP-A-2000-315177
- the present invention has been proposed in view of the above-described conventional circumstances, and even when content data whose movement and duplication between devices or recording media are managed is deleted, copyright protection is not required. It is an object of the present invention to provide a content recording / reproducing device, a content recording / reproducing method, and a content recording / reproducing system which restore and use content data deleted below.
- the present invention employs the following configuration to solve the above-mentioned object.
- the content recording / reproducing apparatus is capable of recording audio data, image data, and computer data on a recording medium having a recording area in which main data is recorded and a management area in which data for managing the main data is recorded.
- Record content data including data and
- a recording / reproducing device for recording content data on a recording medium or reproducing the recorded content data in a content recording / reproducing apparatus for reproduction, and an operation for inputting an operation for recording or reproduction from a user.
- Means for performing editing processing including deletion, duplication, and rearrangement of information recorded in the recording area where the main data is recorded and the management area in response to an instruction from the operation means;
- deletion history information is created by the deletion history creation unit that creates deletion history information based on information related to the content data, and when the content data recorded on the recording medium is deleted by the operation unit.
- control means records when connected to the information processing apparatus.
- the deletion history information recorded on the medium is transmitted to the information processing device. If the deleted content data was originally provided by the information processing device, the deleted content data is provided again.
- the content recording / reproducing apparatus may include image data acquisition means for acquiring image data.
- the control means secures the recording capacity by deleting a part of the content data in accordance with the recording capacity of the recording medium, and delete history information by the deletion history creating means. And write it to the recording medium.
- an information processing apparatus comprises a storage means for storing content data, and is connected to an external device capable of recording and reproducing data by mounting a recording medium, and A recording history creating means for creating recording history information based on information relating to the content data read by the external device when the content data is read by the external device; , A recording medium that allows the external device to record and play back when the external device is connected Control means for comparing the content data stored in the storage device with the record history information and retransmitting the deleted content data.
- a content recording / reproducing system comprising: an information processing apparatus capable of storing content data; a storage means connected to the information processing apparatus; And a content recording / reproducing apparatus for reading out and recording on a recording medium or transmitting content data recorded on the recording medium to a storage means of the information processing apparatus.
- a content recording / reproducing apparatus records or records content data on a recording medium having a recording area for recording main data and a management area for recording data for managing the main data.
- Editing means for performing editing processing including deletion, duplication, and rearrangement, deletion history creation means for creating deletion history information based on information on the content data when the content data is deleted, and a recording medium.
- deletion history information is created by the deletion history creation means and written to the recording medium.
- control means for performing The information processing device acquires the deletion history information created on the recording medium by the content recording / reproduction device when the content recording / reproduction device is connected, and retransmits the deletion content data based on the deletion history information. Then, the information processing device restores the deleted content based on the deletion history information created by the content recording / reproducing device.
- a content recording / reproducing system comprising: an information processing apparatus capable of storing content data; a storage means connected to the information processing apparatus; And a content recording / reproducing apparatus for reading out and recording the content data on the recording medium or transmitting the content data recorded on the recording medium to the storage means of the information processing apparatus.
- the content recording / reproducing apparatus records the main data.
- the information processing apparatus includes a recording history creation unit that creates recording history information based on information about the content data read by the content recording / reproducing apparatus when the content data is read by the content recording / reproducing apparatus.
- a content recording / reproducing method for recording and / or reproducing content data including computer data content data is deleted in response to a recording or reproducing instruction issued from a user through an operation means.
- a content recording / reproducing method including a deletion history creation step of creating deletion history information based on information on content data, and a step of writing the created deletion history information to a recording medium.
- a content recording / reproducing method for an information processing apparatus which is provided with a storage for storing content data and is connected to an external device capable of recording / reproducing by mounting a recording medium and capable of transmitting the content data to the external device
- a recording history creation step for creating recording history information based on the information on the content data read to the external device
- the external device records when the external device is connected
- a content recording / reproducing method includes a step of comparing content data stored in a recording medium that can be reproduced with recording history information and retransmitting the deleted content data.
- an information processing apparatus capable of storing content data, and a storage means connected to the information processing apparatus, reading out the content data of the information processing apparatus and reading the content data onto a recording medium Record or on recording media
- the content data is deleted in response to an instruction for recording or reproduction performed by a user via an operation unit.
- Creates deletion history information based on the information related to the content data at the time of deletion, writes the created deletion history information to a recording medium, and deletes the information created on the recording medium when the information processing device and the content recording / reproducing device are connected. History information is acquired, and the deleted content data is retransmitted based on the deletion history information.
- an information processing apparatus capable of storing content data, and a storage means connected to the information processing apparatus, which reads out the content data stored in the information processing apparatus and records the content data on a recording medium, or stores the content data recorded on the recording medium as described above.
- the content recording / reproducing method for a content recording / reproducing apparatus to be transmitted to storage of an information processing apparatus when the content recording / reproducing apparatus reads out the content data, the information relating to the content data read by the content recording / reproducing apparatus is used.
- the content recording / reproducing apparatus is connected to the information processing apparatus, the content data recorded on the recording medium is compared with the recording history information, and the deleted content data is processed. Request for device.
- FIG. 1 is a schematic diagram showing a system including an MD recording player and a PC as a specific example of the present invention.
- FIG. 2 is a diagram schematically illustrating an MD recording player shown as a specific example of the present invention.
- FIG. 3 is a configuration diagram illustrating a media drive section of the MD recording player.
- FIG. 4 is a configuration diagram illustrating an EFMZACI RC codec as a storage unit of the MD recording player.
- Fig.5 shows a mini-disc disc recorded and played back by the MD recording player. It is a schematic diagram explaining the example of an area structure on a surface.
- FIG. 6 is a schematic diagram for explaining an example of an area structure on a mini disc surface recorded and reproduced by the MD recording player.
- FIG. 7 is a schematic diagram illustrating an area configuration on the board when audio data and PC data are mixedly recorded on the mini-disc.
- FIG. 8 is a diagram illustrating a FAT file system, which is an example of a management system for audio data.
- FIG. 9 is a diagram showing an example of a deletion history created on a mini-disc by an MD recording player by the first method.
- FIG. 10 is a diagram showing a functional configuration of a personal computer and an MD recording player for realizing the first method.
- FIG. 11A and FIG. 11B are flowcharts for explaining processing for restoring deleted content by the first method.
- FIG. 12 is a diagram showing an example of a recording history created on a PC by the second method and held by the PC.
- FIG. 13 is a diagram showing a functional configuration of a personal computer and an MD recording player for realizing the second method.
- FIGS. 14A and 14B are flowcharts illustrating a process of restoring deleted content by the second method.
- FIGS. 15A and 15B are diagrams illustrating an example of a recording history created in a PC by the third method and a deletion history created on a mini-disc by an MD recording player.
- FIG. 16 is a diagram showing a functional configuration of a personal computer and an MD recording player for realizing the third method.
- FIGS. 17A and 17B are flowcharts illustrating a process of restoring deleted content by a third method.
- FIG. 18 is a flowchart illustrating processing for deleting content recorded on a mini-disc for content data to be newly recorded in the first method and the third method. It is a chart.
- the present invention is applied to audio data, video data, and computer data (Mini Dis MD (registered trademark)) as a disc-shaped magneto-optical recording medium.
- Mini Dis MD registered trademark
- a case where the present invention is applied to a content recording / reproducing apparatus capable of recording and reproducing content data including PC data will be described.
- the content recording / reproducing device 1 shown in FIG. 1 has a configuration as a digital camera and a function as an audio recording / reproducing device, and records or reproduces captured image data on the above-mentioned mini-disc, and outputs audio to the mini-disc. It is a device that can record and play back data. Therefore, hereinafter, the content recording / reproducing apparatus will be described as an MD recording player.
- the MD recording player 1 can be connected to an external device such as a personal computer (hereinafter referred to as PC) 200 using a connection interface such as a USB (Universal Serial Bus) cable 300.
- PC data content data including audio data, video data, data for a computer (hereinafter, referred to as PC data), and the like can be transmitted to and received from the PC 200. Therefore, the MD recording player 1 reads content data stored in an HDD (Hard Disk Drive) or the like inside the PC 200 functioning as a host into the mini disc 90 as necessary, and reproduces the data from the mini disc 90. be able to.
- the mini disc 90 can record PC data
- the MD recording player 1 can also be used as an external recording device of the PC 200.
- the mini-disc 90 that can be played by the MD recording player 1 can handle different data created in different formats, such as audio data, video data, PC data, and the like, and provide a secret area that can be used by authentication. And a normal recording area that can be used without authentication.
- the confidential area is an area in which only specific data such as copyrighted music content and video content can be recorded.
- ATRAC Adaptive TRansform Acoustic Coding
- Data other than ATRAC such as MP3 (MPEG1 Audio Layer-3) format and WMA (Windows (registered trademark) Media Audio) format, such as audio data, image data, and text data, are normally recorded in the recording area.
- MP3 MPEG1 Audio Layer-3
- WMA Windows (registered trademark) Media Audio
- audio data, image data, and text data are normally recorded in the recording area.
- minidisc 90 that can be used in the MD recording player 1 will be described.
- the mini-disc 90 applicable to this specific example includes a type in which the modulation method of the conventional magneto-optical recording method is devised, and a recording format generally used as a recording / reproducing method for the mini-disc employing the conventional magneto-optical recording method.
- the new type uses a high-density recording technology and a new file system to achieve an increase in recording capacity while maintaining compatibility with existing minidisks, housing outlines, and recording / reproducing optical systems. .
- the physical format of a conventional mini-disc is defined as follows.
- the track pitch is 1.6 m and the bit length is 0.59 ⁇ m / bit.
- As a recording method a groove recording method using grooves (grooves on the disk surface) as tracks for recording and reproduction is adopted.
- the address method employs a method in which a single spiral groove is formed on the disk surface, and a wobbled groove in which a wobble as address information is formed on both sides of the groove is used. .
- an absolute address recorded as a cobble is referred to as an ADIP (Address in
- EFM 8-14 conversion
- ACIRC Advanced Cross Interleave Reed—olomon Code
- CLV Constant Linear Velocity
- the address method uses ADIP. As described above, since the configuration of the optical system, the ADIP address reading method, and the servo processing in the disk drive device are the same as those of the conventional mini-disc, compatibility with the conventional disc is achieved.
- this mini-disc uses the RLL (1-7) PP modulation method (RLL: Parity preserve / Prohibit rmtr (, repeated minimum transition runlength) that is compatible with high-density recording as the recording data modulation method. )).
- RLL Parity preserve / Prohibit rmtr (, repeated minimum transition runlength) that is compatible with high-density recording as the recording data modulation method.
- BIS Breast Indicator Subcode
- Data interleaving is block-complete. This results in a data redundancy of 20.50%.
- a Viterbi decoding method based on PR (1, 2, 1) ML is applied.
- the disk drive system is the same as the CLV system, and the linear velocity is 2.4 m / s.
- the standard data rate for recording and playback is 4.4 MBZs.
- the total recording capacity can be reduced to 300MB.
- the RLL (1-7) PP modulation method as the modulation method, the window margin is reduced from 0.5 to 0.666, so a 1.33 times higher density can be realized.
- the cluster which is the minimum data rewrite unit, is composed of 16 sectors and 64 kB.
- the RS-LDC method with the CIRC method and BIS as the recording modulation method and the method using the difference in sector structure and Viterbi decoding as described above, the data efficiency will be 57.5% and 79.5%. 1.48 times higher density has been achieved.
- the recording capacity can be reduced to 300MB, which is about twice that of a conventional mini-disc. It comes out.
- a new type that achieves improved confidentiality and higher recording capacity by applying a signal system different from the recording format normally used as a recording / reproducing method for a mini-disc adopting the conventional magneto-optical recording method.
- a second next-generation MD is a recording medium to which a high-density recording technology such as a domain wall displacement detection method (DWDD: Domain Wall Displacement Detection) is applied.
- the physical format is different from that of the mini disk.
- the new type has a track pitch of 1.25 m and bit length of .16 m / bit, and has a higher density in the line direction.
- the recording method is a groove recording method, and the address method is a method using ADIP.
- the outer shape of the housing is the same as that of the conventional mini-disc.
- a new type of mini-disc uses a Run Length Limited (PPL) Parity preserve / Prohibit rmtr (repeated minimum transition runiength)).
- PPL Run Length Limited
- Prohibit rmtr peerated minimum transition runiength
- 3 As an error correction method, an RS-LDC (Reed Solomon-Long Distance Code) method with BIS (Burst Indicator Subcode), which has a higher correction capability, is used. Data interleaving shall be block complete. This results in a data redundancy of 20.50%.
- a Viterbi decoding method using PR (1, ⁇ 1) ML is used as a data detection method.
- the cluster which is the minimum data rewrite unit, is composed of 16 sectors and 64 kB.
- the disk drive system uses the ZCAV system, and its linear velocity is 2.0 m / s And
- the standard data rate for recording and playback is 9.8 MBZs.
- the new type can reduce the total recording capacity to about 1GB by adopting the DWDD method and this driving method.
- the recording / reproducing unit 4 is an encoding and Z or decoding unit (detailed in FIG. Hereinafter, this is referred to as a codec).
- FIG. 4 specifically illustrates the codec of the MD recording player 1 shown in FIG.
- MD recording player 1 uses mini-disc 90 as a recording medium and can handle various types of content data created in different formats, such as audio data, still image data, moving image data, text data, and data for personal computers.
- content data of different formats can be reproduced simultaneously, for example, reproducing still image data or moving image data on the display unit while reproducing audio data.
- An ID code is recorded as a unique identification information for each recording medium in a predetermined area that cannot be accessed during the normal data reproducing operation of the mini disc 90.
- this ID code may be arbitrarily generated and recorded in the recording device as erasable information, or may be recorded in a non-overwritable state at the time of shipment from the factory.
- the MD recording player 1 includes a data recording / reproducing control unit 2 and an image processing unit 3.
- the data recording / reproducing control unit 2 includes a recording / reproducing unit 4 for recording / reproducing the mini disc 90, an audio data input unit 5 for inputting audio data, and an audio data output unit 6 for outputting audio data to the outside.
- An audio data processing unit 7 for performing predetermined compression / decompression processing on audio data, an external interface unit 8 for transmitting / receiving data to / from an information processing device, an input operation unit 9, and a memory transfer controller 10, a cache memory 11 as an auxiliary memory, and a system controller 12.
- the image processing unit 3 includes an image acquisition unit 13 including a CCD (Charge Coupled Device), a lens unit, a camera data buffer memory 14 as a temporary storage location for acquired image data, and a liquid crystal display (LCD).
- a liquid crystal display A liquid crystal display), an image data processing unit 16 for performing predetermined compression / decompression processing on image data, and an image data control unit 17 for controlling the image processing unit 3.
- the MD recording player 1 includes a USB hub 18, USB interfaces 19 and 20 as an external interface unit 8 of the data recording / reproducing control unit 2.
- the MD recording player 1 can be connected to a personal computer (hereinafter, referred to as PC) 200 through the external interface unit 8.
- PC personal computer
- the MD recording player 1 can record audio data and acquire image data by using the mini-disc 90 having the above-described configuration and capable of recording various content data created in different formats as a recording medium. It can be recorded on mini disc 90.
- it since it can be connected to an information processing device such as a PC via the external interface unit 8, it can be used as an external storage of the information processing device.
- the memory transfer controller 10 controls the reproduction data read out by the recording / reproducing unit 4 or the recording data supplied to the recording / reproducing unit 4 among a plurality of content data recorded in the mini-disc 90 and having different formats. Is performed.
- the cache memory 11 is a memory for temporarily storing data read out from the data tracks of the mini disc 90 by the high-density data cluster unit by the recording / reproducing unit 4 under the control of the memory transfer controller 10 described above.
- the cache memory 11 stores various management information such as UTOC data read from the mini-disc 90 by the recording / reproducing unit 4, information for copyright protection recorded in a secret area, information for data tampering check, and limitation. External device information, etc., to which access is permitted is stored based on the control of the memory transfer controller 10.
- the related data described above includes, for certain content data, address information indicating where the substance of the content data is recorded on the mini disc 90, tag information indicating the type of content, various management information such as UTOC data, Work recorded in secret area Rights protection information, data tampering check information, external device information that permits limited access, etc.
- tag information indicating the type of content
- various management information such as UTOC data, Work recorded in secret area Rights protection information, data tampering check information, external device information that permits limited access, etc.
- audio data song information, composer name, time information indicating song length, etc.
- image data the information is information for identifying the entity of the image data, such as an image number, a creation date, an image frame size, and a data amount, or information supplementing the image data.
- related data is referred to as system information.
- related data related to all content data recorded on the mini-disc is used as common system information
- the system controller 12 instructs the recording / reproducing unit 4 to read management information and the like from the management information recording area of the mini disk 90, and reads the read PTOC
- the management information such as UTOC is stored in the cache memory 11 by the memory transfer controller 10.
- the system controller 12 reads the management information to determine the track recording state of the mini disc 90.
- the system controller 12 can communicate with the PC 200 connected via the USB interface 20 and the USB hub 18.
- the system controller 12 performs communication control with the PC 200, receives commands such as a write request and a read request from the PC 200, and transmits status information and other necessary information to the PC 200.
- the system controller 12 When a read request for a certain FAT sector is issued by the PC 200 or the like, the system controller 12 sends a control signal to the recording / reproducing unit 4 to execute reading of a data cluster including the FAT sector requested to be read. .
- the data cluster read by the recording / reproducing unit 4 is written to the cache memory 11 by the memory transfer controller 10. However, when the data of the FAT sector has already been stored in the cache memory 11, the reading by the recording / reproducing unit 4 is not necessary.
- the system controller 12 gives a control signal for reading the data of the requested FAT sector from the data of the high-density data cluster written in the cache memory 11, and sends the control signal via the USB interface 20 and the USB hub 18. The control for transmitting to the PC 200 is performed.
- the system controller 12 received a write request for a certain FAT sector, such as PC200.
- the recording / reproducing unit 4 is caused to read a data cluster including the FAT sector for which writing has been requested.
- the read data cluster is written to the cache memory 11 by the memory transfer controller 10.
- the system controller 12 supplies the recording data of the FAT sector transmitted from the PC 200 to the memory transfer controller 10 via the USB interface 20, and causes the data of the corresponding FAT sector to be rewritten on the cache memory 11. .
- the system controller 12 instructs the memory transfer controller 10 to store the required FAT sector in the cache memory 11 in a rewritten state and transfer the data of the data cluster to the recording / reproducing unit 4 as recording data. Let it. At this time, the recording / reproducing unit 4 modulates and writes the recording data of the data cluster in a modulation method compatible with the mini-disc as the mounted recording medium.
- the above-described recording / reproduction control is control when recording / reproducing a data track, and data transfer when recording / reproducing MD audio data recorded / reproduced on an audio track is performed via the audio data processing unit 7. Done.
- the image data obtained by the image obtaining unit 13 is recorded on the mini-disc 90 via the image data control unit 17 and the system controller 19.
- Image data recorded on the mini-disc 90 is subjected to predetermined image encoding by the image data processing unit 16 and data compression is performed.
- the image data read from the mini disc 90 is reproduced on the display unit 15.
- Image data reproduced from the mini disc 90 is decoded in the image data processing section 16 and subjected to data expansion processing.
- the MD recording player 1 may be configured to include an input terminal for inputting image data from the outside to the image data control unit 17 and an output terminal for outputting image data to the outside. .
- the audio data input unit 5 includes, for example, an analog audio signal input unit such as a line input circuit Z microphone input circuit, an AZD converter, And a digital audio data input unit.
- the audio data processing unit 19 includes an ATRAC compression encoder Z decoder and a buffer memory for compressed data.
- audio output unit 6 includes an analog audio signal output unit such as a digital audio data output unit, a DZA converter, and a line output circuit Z headphone output circuit.
- the first path in which an audio track is recorded on the minidisc 90, which is a recording medium, is that the audio data processing unit 7 converts digital audio data or the AZD of the audio data input unit 5 into an analog audio signal. This is the case where the input digital audio signal is input.
- the input linear PCM digital audio data or the linear PCM audio data obtained by being converted as AZD after being input as an analog audio signal is ATRAC compression-encoded and stored in the cache memory 11. Thereafter, the data is read from the cache memory 11 at a predetermined timing, for example, in a data unit corresponding to the ADIP cluster, and transferred to the recording / reproducing unit 4.
- the recording / reproducing unit 4 modulates the transferred compressed data by the EFM modulation method or the RLL (1-7) PP modulation method and writes the modulated data in the secret area of the mini disc 90 as an audio track.
- the second case in which an audio track is recorded on the mini disc 90 as a recording medium is a case where audio data permitted to be recorded in the secret area is input from the PC 200.
- the recording / reproducing unit 4 is instructed so that the audio data is recorded in the secret area of the mini disc 90.
- the PC 200 transfers the audio data file to the memory transfer controller via the USB hub 18 and the USB interface 19, and the transferred audio data file is stored in the cache memory 11 It is temporarily stored in. Thereafter, the data is read from the cache memory 11 at a predetermined timing, for example, in a data unit corresponding to the ADIP cluster, and transferred to the recording / reproducing unit 4.
- the recording / reproducing unit 4 modulates the transferred compressed data using the EFM modulation method or the RLL (1-7) PP modulation method, and Write it as an audio track in the secret area of disk 90.
- the recording / reproducing unit 4 demodulates the reproduced data into an ATRAC compressed data state and transfers the data to the audio data processing unit 7.
- the audio data processing unit 7 performs ATRAC compression decoding on the ATRAC-encoded audio data reproduced from the mini disc 90 to obtain linear PCM audio data, and outputs the digital data from the audio data output unit 6.
- a line output Z headphone output is performed as an analog audio signal by a DZA converter.
- connection with the PC 200 is not limited to USB, but may be, for example, a so-called IEEE 1394 interface that conforms to the standards set by the Institute of Electrical and Electronics Engineers (Inc.).
- the connection interface of can be applied.
- the recording / reproducing section 4 shows a recording processing system for recording / reproducing on / from the conventional mini disc 90.
- the recording / reproducing unit 4 has a configuration for executing the EFM modulation and the ACIRC code which are the recording methods of the mini disc 90, and executes the EFM demodulation and the ACIRC decoding for reproducing the mini disc 90 as a reproduction processing system. And a configuration. Further, the recording / reproducing unit 4 drives the loaded mini disc 90 by the spindle motor 31 according to the CLV method or the ZCAV method. At the time of recording / reproduction, the mini disc 90 is irradiated with laser light from the optical head 32.
- the optical head 32 outputs a high-level laser to heat the recording track to the Curie temperature during recording, and a relatively low-level laser to detect data from reflected light by the magnetic Kerr effect during reproduction. Output. Therefore, the optical head 32 is equipped with an optical system including a laser diode, a polarizing beam splitter, an objective lens, and the like as laser output means, and a detector for detecting reflected light.
- the objective lens provided in the optical head 32 includes, for example, a biaxial mechanism in a disc radial direction and a disc direction. It is held so that it can be displaced in the direction of coming and going with the disc.
- the read / write operation of the optical head 32 is performed in order to enable recording and reproduction on a plurality of types of mini-discs having different physical specifications on the medium surface and to obtain the maximum reproduction characteristics for both disks.
- a phase compensator capable of optimizing a bit error rate at the time of data reading is provided in the optical path.
- a magnetic head 33 is disposed at a position facing the optical head 32 with the mini disc 90 interposed therebetween.
- the magnetic head 33 applies a magnetic field modulated by the recording data to the mini disk 90.
- a sled motor and a sled mechanism for moving the entire optical head 32 and the magnetic head 33 in the radial direction of the disk are provided.
- the recording / reproducing unit 4 includes a recording / reproducing processing system, a servo system, and the like, in addition to a recording / reproducing head system using the optical head 32 and the magnetic head 33, a disk rotation driving system using the spindle motor 31.
- a recording processing system a part for performing EFM modulation and ACIRC encoding when recording on the mini disc 90 is provided.
- a part for performing demodulation corresponding to EFM modulation and ACIRC decoding when reproducing the mini disk 90 is provided as a reproduction processing system.
- the reflected light of the laser light emitted from the optical head 32 to the mini-disc 90 is detected as a photocurrent by a photodetector and supplied to the RF signal processing unit 34.
- the RF signal processing section 34 performs current-voltage conversion, amplification, matrix calculation, etc. on the input detection information, and outputs the reproduction RF signal, tracking error signal TE, focus error signal FE, and mini disc 90 as reproduction information. Extract ADIP information etc. as groove information recorded by wobbling of tracks.
- the playback RF signal obtained by the RF signal processing unit 34 is passed through an ADI P-PLL circuit 35 and an EFM-PLL circuit 36 to an EFM and Z or an ACIRC encoding / demodulation unit (EFMZACIRC codec). Processed at 37.
- the tracking error signal (Detrack), focus error signal (Defocus), and lens shift signal (LensShift) output from the RF signal processing unit 34 are supplied to each subsequent servo signal processing circuit, and the groove information is converted to an ADIP—PLL circuit. Supplied to 35.
- ADIP The PLL circuit 35 band-limits the groove information with a band-pass filter to extract a wobble component, and then performs FM demodulation and biphase demodulation to extract an ADIP address. Also, the groove information is The signal is returned to the servo signal processing circuit 46 for servo control.
- the reproduced RF signal is binarized by an EFM and Z or ACIRC code demodulator (referred to as EFMZACIRC codec) 37 to form an EFM signal sequence, EFM demodulated, and further subjected to ACIRC demodulation. Error correction and interleaving are performed. If it is audio data, it is in the state of ATRAC compressed data at this point.
- the demodulated ATRAC compressed data is temporarily stored in the DRAM 39 corresponding to the cache memory 11 by the DRAM controller 38 corresponding to the memory transfer controller 15 as reproduction data from the mini disk 90, and is stored in the audio data processing unit 7. It is read out according to the use of the corresponding ATRAC encoding / decoding unit (ATRA C codec) 40.
- the ATRAC compressed data is ATRAC-decoded by an ATRAC codec 40 and output from an output unit 43 such as headphones or speakers via an ADZDA converter 41 and an amplifier 42 corresponding to the audio data input unit 5.
- the MD recording player 1 can also acquire external audio via the microphone 44, the amplifier 45, and the ADZDA converter 41.
- the servo signal processing circuit 46 provides, for example, a playback clock (PLL clock for decoding) for groove information.
- a spindle error signal for CLV servo control and ZCAV servo control is generated based on the error signal obtained by integrating the phase error of
- the servo signal processing circuits 47, 48, and 49 perform a tracking control signal, a focus control signal, and a focus control signal based on the tracking error signal, focus error signal, lens shift, track jump command, and access command supplied from the RF signal processing unit 34.
- Various servo control signals such as signals, thread control signals, and spindle control signals are generated and output to the drive circuits 51, 52, and 53. That is, each servo signal processing circuit generates various servo control signals by performing necessary processing such as phase compensation processing, gain processing, and target value setting processing on the servo error signal or command.
- Each of the drive circuits 50, 51, 52, 53 generates a predetermined servo drive signal based on the servo control signal supplied from the servo signal processing circuit.
- the servo drive signal here includes a two-axis drive signal (two types of focus direction and tracking direction) for driving the two-axis mechanism, a thread motor drive signal for driving the sled mechanism, and a spindle motor 31. This is the driving signal for the moving spindle motor.
- focus control and tracking control for the mini disk 90 and CLV control or ZCAV control for the spindle motor 31 are performed.
- ATRAC compressed data is supplied from the memory transfer controller 15 shown in FIG.
- the EFMZACIRC codec 37 functions. If it is audio data, it is interleaved and encoded with an error correction code by an ACIRC codec encoder, and then EFM modulated.
- the EFM modulated data is supplied to the magnetic head driver 54, and the magnetic head 33 applies a magnetic field to the mini-disc 90 based on the EFM modulated data, so that the modulated data is recorded.
- EFM and Z or ACIRC encoding / demodulating unit (EFMZACIRC codec) 37 is shown in detail in FIG.
- the main components of the recording / reproducing unit 4 are the spindle motor 31, optical head 32, magnetic head 33, RF signal processing unit 34, A DIP-PLL circuit 35, and EFM-PLL circuit 36 of the MD recording player 1 shown in FIG. , EFM and Z or ACIRC encoding / demodulating section (EFMZACIRC codec) 37, servo signal processing circuit 46, servo signal processing circuits 47, 48, 49, horse motion circuit 50, 51, 52, 53, magnetic head drying 54 [In response to this! / Puru.
- the recording / reproducing unit 4 drives the loaded disc 90 to rotate by the spindle motor 31 in the CLV system.
- the disc 90 is irradiated with laser light by the optical head 32 during recording Z reproduction.
- the mini-disc 90 is usually used as a recording / reproducing method for the current MD specification disc, a disc that uses the modulation method of the current MD magneto-optical recording method, and a mini disc that uses the conventional magneto-optical recording method.
- the optical head 32 outputs a high-level laser output for heating the recording track to the Curie temperature during recording, and a relatively low-level laser output for detecting reflected light power data by the magnetic Kerr effect during reproduction. Do.
- the optical head 32 includes Although not shown, a laser diode as laser output means, an optical system such as a polarizing beam splitter and an objective lens, and a detector for detecting reflected light are mounted.
- the objective lens provided in the optical head 32 is held, for example, by a two-axis mechanism so as to be displaceable in the radial direction of the disk and in the direction of coming and coming from the disk.
- a magnetic head 33 is disposed at a position facing the optical head 32 with the disk 90 interposed therebetween.
- the magnetic head 33 performs an operation of applying a magnetic field modulated by recording data to the disk 90.
- a sled motor and a sled mechanism are provided for moving the entire optical head 32 and the magnetic head 33 in the radial direction of the disk.
- the optical head 32 and the magnetic head 33 perform recording / reproducing at a higher recording density by performing a noise drive magnetic field modulation.
- the magnetic field modulation method is used.
- the recording / reproducing unit 4 includes a recording / reproducing head system including an optical head 32 and a magnetic head 33, a disk rotation driving system using a spindle motor 31, a recording processing system, a reproduction processing system, a servo system, and the like.
- a part for performing error correction coding using ACIRC, modulating with EFM and recording data, and a first next-generation MD In addition, in the case of the second next-generation MD, a unit for performing error correction coding by a method combining BIS and LDC, and performing recording by performing RLL (1-7) PP modulation is provided.
- the playback processing system includes components for performing EFM demodulation and ACIRC error correction processing during playback of the current MD system disc, as well as the first next-generation MD and second-generation MD system discs.
- a part is provided for performing RLL (1-7) PP demodulation based on partial response and data detection using Viterbi decoding during reproduction, and performing error correction processing using BIS and LDC.
- the playback processing system includes a part for decoding an address based on the ADIP signal of the current MD system or the first next-generation MD, and a part for decoding the ADIP signal of the second next-generation MD. .
- the photocurrent obtained by converting the reflected light from the minidisk 90 with a photodetector is the RF signal It is supplied to the processing unit 34.
- the RF signal processing unit 34 performs current-voltage conversion, amplification, matrix operation, etc. on the input detection information, and reproduces the reproduction RF signal, tracking error signal TE, focus error signal FE, ADIP information, etc. as reproduction information. Is extracted.
- the reproduced RF signal obtained by the RF amplifier is processed by the EFM demodulation unit 68 and the ACIRC decoder 69.
- the reproduced RF signal is binarized by an EFM demodulation unit 68 into an EFM signal sequence, EFM demodulated, and further subjected to error correction and interleaving by an ACIRC decoder 69.
- the state of the ATRAC compressed data is established.
- the selector 70 is set to the B contact side, and the demodulated ATRAC compressed data is output as reproduction data from the disc 90.
- the reproduced RF signal obtained by the RF signal processing unit 34 is converted to the RLL (1-7) PP demodulation unit 66 and the RS-LDC Processed by the decoder 67. That is, the reproduced RF signal is supplied to the 13 ⁇ 4 ⁇ (1 7) ?? demodulation unit 66, and is subjected to RLL (1 ⁇ ) by detecting data using PR (668) ML or PR (1, ⁇ 1) ML and Viterbi decoding. 7) Reproduced data as a code string is obtained, and RLL (1-7) demodulation processing is performed on this RLL (1-7) code string.
- the selector 70 selects the A contact side, and outputs the RLL (1-7) PP demodulated data as reproduction data from the disc 90. Is done.
- the tracking error signal and the focus error signal output from the RF signal processing unit 34 are supplied to a servo signal processing circuit 46, and the groove information is supplied to an ADIP demodulation unit 80.
- the ADIP demodulation section 80 demodulates the ADIP signal by performing FM demodulation and bi-phase demodulation after extracting a wobble component by band-limiting the groove information by a band-pass filter.
- the demodulated ADIP address which is the absolute address information, is supplied to the system controller 12 shown in FIG.
- the system controller 12 executes a predetermined control process based on the ADIP address.
- the groove information is supplied to a servo signal processing circuit 46 for spindle servo control.
- the servo signal processing circuit 46 outputs a reproduction clock (for decoding A spindle error signal for CLV servo control is generated based on the error signal obtained by integrating the phase error with the PLL system clock.
- the servo signal processing circuit 46 receives a spindle error signal, a tracking error signal and a focus error signal supplied from the RF signal processing unit 34, or a track jump command and an access command from the system controller 12, for example. It generates various servo control signals (tracking control signal, focus control signal, thread control signal, spindle control signal, etc.) and outputs the generated signal to the drive circuit 50. That is, necessary processing such as phase compensation processing, gain processing, and target value setting processing is performed on the servo error signal and command to generate various servo control signals.
- the drive circuit 50 generates a predetermined servo drive signal based on the servo control signal supplied from the servo signal processing circuit 46.
- the servo drive signals here include a two-axis drive signal (two types of focus direction and tracking direction) for driving the two-axis mechanism, a thread motor drive signal for driving the thread mechanism, and a spindle motor drive for driving the spindle motor 31. Signal. By such a servo drive signal, focus control and tracking control on the disk 90 and CLV control on the spindle motor 31 are performed.
- the ACIRC encoder 63 and the EFM modulation unit 64 function by being connected to the selector 65 contact.
- the compressed data supplied from the cache memory 11 shown in FIG. 2 as the recording data is subjected to interleaving and error correction code addition by the ACIRC encoder 63, and then EFM modulation is performed by the EFM modulation unit 64.
- the EFM modulation data is supplied to the magnetic head driver 54 via the selector 65, and the magnetic track 33 applies a magnetic field to the disk 90 based on the EFM modulation data, thereby recording an audio track.
- the selector 65 is connected to the A contact, and the RS-LDC encoder 61 and the RLL (1-7) PP modulation unit 62 Will work.
- the high-density data from the cache memory 11 is interleaved by the RS-LDC encoder 61 and calorie with an error correction code of the RS-LDC method is performed.
- 1-7) Modulation is performed.
- R The recording data as an LL (1-7) code string is supplied to the magnetic head driver 54 via the selector 65, and the magnetic head 33 applies a magnetic field to the disk 90 based on the modulation data, thereby producing data.
- the track is recorded.
- the laser driver 60 also performs a so-called APC (Automatic Laser Power Control) operation for causing the laser diode to perform a laser emission operation during the above-described reproduction and recording.
- APC Automatic Laser Power Control
- a laser power monitor detector is provided in the optical head 32, and the monitor signal is fed back to the laser dryer 60.
- the laser driver 60 compares the current laser power obtained as a monitor signal with the set laser power, reflects the error in the laser drive signal, and sets the laser power output from the laser diode. It is controlled to be stable at the value. It should be noted that the laser power differs between the time of reproduction and the time of recording, and a value as the reproduction laser power or the recording laser power is set by the system controller 12 in a register inside the laser dry cell 60.
- Each of the above operations (each operation of access, various servos, data writing, and data reading) is executed based on an instruction from the system controller 12 shown in FIG.
- a PTOC Premastered Table Of Contents
- disk management information is recorded as emboss pits due to physical structural deformation.
- the outer periphery of the pre-mastered area is a recordable area in which magneto-optical recording is possible, and is a recordable / reproducible area in which a groove is formed as a guide groove of a recording track.
- the innermost side of the recordable area is a UTOC (User Table Of Contents) area, in which the UTOC information is described, a buffer area between the premastered area and the output of laser light.
- a power calibration area used for power adjustment and the like is provided.
- the minidisk 90 does not use pre-pits to increase the recording density. Therefore, the minidisk 90 differs from the recording format normally used as a recording / reproducing method for a minidisk employing a conventional magneto-optical recording method.
- Mini-discs with different signaling methods have no PTOC area.
- the mini-disc 90 has a unique ID area (Unique ID area) for recording information for copyright protection, information for data tampering check, and other non-public information in the inner peripheral area of the recordable area. : UID) is provided. This UID area is recorded by a recording method different from the DWDD method applied to the mini disc 90.
- each of the discs described here can record audio data tracks and data tracks in a mixed manner.
- an audio recording area AA in which at least one audio track is recorded in the data area and a PC data recording area DA in which at least one data track is recorded are respectively arbitrary. It will be formed at the position.
- a series of audio tracks and data tracks may be divided into a plurality of parts which need not be physically continuously recorded on the disc.
- a part indicates a section that is physically continuously recorded.
- the number of data tracks may be treated as one, or may be treated as a plurality of tracks.
- HIFI which is a directory for storing audio files
- DCIM which is a directory for storing still image data, and the like are created on the minidisk.
- audio directory "HIFI” track information files (hereinafter, referred to as TIF), audio data files (hereinafter, referred to as ADF), track MACs, and the like are generated as subdirectories.
- a deletion history file which will be described later, is created by the MD recording player 1.
- a still image directory for storing image data captured by a digital camera.
- the "DCIM” has a folder “**** MSDCF (*** is 000-999)" which is distinguished by a serial number from 000 to 999 as a subdirectory.
- the captured still image data is stored with a file name such as DSC * * * *. Jpg (* * * * is time information) attached based on a predetermined naming convention.
- the directory structure shown in FIG. 8 also includes files such as security information and content generation management information characteristic of the mini-disc 90.
- the security information and content generation management information include EKB (Enabling Key Block) as playback permission information for each recording and playback device, and track MAC as content tampering check information.
- a track information file (TIF) in HIFI corresponds to encrypted information relating to audio content data.
- the track information file (TIF) and audio data file (ADF) are managed by the FAT file system.
- the MD recording player 1 shown as a specific example of the present invention has a shortage of recording capacity when new content is recorded, and, for example, reproduces copyright-managed contents such as check-in and chuck-out.
- a copy history can be created to restore copyright-protected data.
- a method of restoring a copyright-protected content so that it does not cause a problem in using the content when the content is deleted will be described.
- the first method for restoring the content deleted in the MD recording player 1 is to create a deletion history of the deleted content every time the MD recording player 1 deletes the content and record the content on the mini disc 90 as a recording medium. This is a method of storing in the area.
- the second method is a method in which the personal computer 200 creates a history of contents moved to the mini disc 90, that is, a recording history, and stores the history in the memory or the like of the PC 200 itself.
- a third method is to create a deletion history in the MD recording player 1 and a recording history in the PC 200.
- FIG. 9 shows an example of the deletion history created by the MD recording player 1 in the first method.
- the deletion history includes fields such as identification information for identifying the content, an address of a recording area where the content is recorded, and a deletion time.
- FIG. 10 shows a functional configuration of the PC 200 and the MD recording player 1 for realizing the first method.
- the PC 200 deletes the content stored in the HDD or the like for storing the content data, the USB interface 202 for transferring the content stored in the content storage to the MD recording player 1, and the MD recording player 1.
- a re-recording processing unit 203 for re-recording the selected content.
- the MD recording player 1 has a USB interface 101 corresponding to the external interface unit 8, a recording unit 102 corresponding to the recording / reproducing unit 4 for recording content input via USB on the mini disc 90, and a mini disc 90.
- the system includes a content editing unit 103 for deleting, changing, and adding recorded content, a reproducing unit 104 for reproducing the content recorded on the mini disc 90, and a deletion history generating unit 105 for generating a deletion history.
- the content editing unit 103 edits the TOC (Table Of Contents) when the content deletion is instructed.
- the TOC records the start position, end position, and playback order of the content.
- the content editing unit 103 edits the TOC and deletes the content.
- the deletion history generation unit 105 records the identification information of the deleted content, the date and time of deletion of the content, and the like in the deletion history.
- the MD recording player 1 stores the deletion history having the items shown in FIG. 9 as a subdirectory of the HIFI directory in the data management structure of the mini disc 90 shown in FIG. 8, for example, as a track information file, an audio data file, and a track MAC. After that, it is stored as a deletion history file directory.
- the PC 200 When the content data is deleted, when the PC 200 and the MD recording player 1 are connected, for example, the PC 200 reads out the deletion history file stored on the mini disc 90 by the MD recording player 1 and registers it here. Perform the process of copying the deleted content and recording it again on the mini disc 90.
- the re-recording processing unit 203 in the PC 200 re-records the deleted content based on the deletion history.
- the re-recording processing unit 203 receives the deletion history from the MD recording player 1.
- the re-recording processing unit 203 reads the content corresponding to the deleted content registered in the deletion history from the content storage unit 201, and transmits the content to the MD recording player 1.
- MD recording player 1 recording section 102 Records the content data input for re-recording by the re-recording processing unit 203 on the mini disk 90.
- the MD recording player 1 may request the PC 200 for the content data registered in the deletion history.
- the operation of restoring the content based on the deletion history file includes an operation of matching the check-in / check-out management information recorded in the PC 200.
- FIG. 11 shows a process of restoring deleted content according to the first method described above.
- this section when starting up the digital camera function of MD recording player 1, in order to secure the capacity to record the captured image data, delete the copyright-protected audio data. explain.
- the PC 200 transfers the content stored in the content storage unit 201 to the MD recording player 1 (step S2).
- the recording unit 102 of the MD recording player 1 records the content input from the PC 200 on the mini disc 90 (Step S3).
- the content editing unit 103 Determines whether to further delete the audio data recorded on the mini disc 90 in order to secure a capacity for recording the content to be added (step S5).
- the digital camera function of the MD recording player 1 is selected, and image data is recorded as added content.
- step S5 For example, if deletion of audio data is selected (step S5, YES), the MD recording player 1 deletes the specified audio data (step S6), and records information on the deleted audio data in the deletion history. (Step S7).
- the MD recording player 1 transmits deletion history information to the PC 200 at the next timing when the MD recording player 1 is connected to the PC 200 (step S8).
- the PC 200 checks the recording capacity of the mini disc 90 (Step S9).
- PC200 If the recording capacity of the second disc 90 is not sufficient to compensate for the deleted content (step S10, NO), the user is instructed to secure the capacity of the mini disc 90 (step Sl l). ). If the recording capacity is sufficient (step S10, YES), the audio data registered in the deletion history is read (step S12), and the read audio data is transmitted to the MD recording player 1 (step S13).
- the MD recording player 1 records the received audio data (step S14).
- step S8 and step S9 when the PC 200 is connected to the MD recording player 1 next time, the PC 200 first executes a request for transmitting a deletion history to the MD recording player 1. ⁇ ⁇
- the second method is a method in which the recording history of the content recorded on the mini-disc 90 by the PC 200 is created and stored in the memory or the recording medium of the PC 200.
- the MD recording player 1 When the content in the mini disc 90 is deleted by the MD recording player 1, when the MD recording player 1 is connected to the MD recording player 1 after the deletion, the MD recording is performed based on the recording history recorded on itself. Verify the content in Player 1.
- Fig. 12 shows an example of the recording history.
- the recording history includes information for identifying the content data recorded on the mini disc 90 by the MD recording player 1 connected to the PC 200, the address of the recording area where the content data is recorded, the recording time, and the like. Field exists.
- the PC 200 compares the content currently recorded on the mini disc 90 with the content previously recorded on the mini disc 90, and if the previously recorded content is currently not recorded, the content is deleted. It is determined that Since the content information currently recorded on the mini disc 90 is recorded in the TOC if it is a normal mini disc 90, the PC 200 compares the recording history with the TOC content and registers it in the recording history. Content that was recorded on the mini-disc 90 It is determined that the content is a deleted content.
- FIG. 13 shows a functional configuration of the PC 200 and the MD recording player 1 for realizing the second method.
- the second method is characterized in that the personal computer 200 includes a recording history generation unit 204.
- the personal computer 200 includes a recording history generation unit 204.
- the recording history generation unit 204 creates a history of the content recorded on the MD recording player. Each time the content stored in the content storage unit 201 is transferred to the MD recording player, the recording history generation unit 204 records information such as the identification information of the moved content, the address of the recording area of the content, and the recording date and time of the content.
- the re-recording processing unit 203 compares the content currently recorded on the mini-disc 90 with the content previously recorded on the mini-disc 90, and the content previously recorded on the mini-disc 90 is not present on the mini-disc 90! In this case, this content is determined to be the deleted content, and the content is re-recorded.
- the PC 200 registers information of the specified content in the recording history (step S21). Subsequently, the content stored in the content storage 201 is transmitted to the MD recording player 1 (step S23). The recording unit 102 of the MD recording player 1 records the content input from the PC 200 on the mini disc 90 (step S23).
- the content editing unit 103 Determines whether to further delete the audio data recorded on the mini disc 90 in order to secure a capacity for recording the content to be added (step S25).
- the digital camera function of the MD recording player 1 is selected, and image data is recorded as the added content.
- the MD recording player 1 deletes the specified audio data (step S26). Then, at the next time the MD recording player 1 is connected to the PC 200, the MD recording player 1 sends the TOC of the set mini-disc to the PC 200 (step S27).
- the PC 200 checks the recording capacity of the mini disc 90 (step S28). If the recording capacity of the mini disc 90 is not enough to compensate for the deleted audio data (step S29, NO), the PC 200 displays an instruction to secure the capacity of the mini disc 90 to the user. (Step S30). If the recording capacity is sufficient (step S29, YES), the recording history is compared with the TOC (step S31), and the deleted audio data is transmitted to the MD recording player 1 (step S32). The MD recording player 1 records the received audio data (step S33).
- the MD recording player 1 can be applied even to an existing MD recording player.
- the PC 200 when the PC 200 is connected to the MD recording player 1 next time in step S27 and step S28, the PC 200 first transmits the TOC of the mini disc 90 reproduced by the MD recording player 1. May be performed.
- the third method will be described.
- the third method is to create both a record history and a deletion history.
- the recording history is provided with a field for describing a medium ID.
- the deletion history describes the name of the deleted content, the address of the recording area of the content, and the like as shown in FIG. 15 (b).
- the medium ID is identification information recorded in a specific area when the mini disc 90 is manufactured.
- the recorded content can be recorded on the mini disc 90 again.
- “deemed check-in 'deemed check-out” can be performed. Audio data copyright protection technology limits the number of checkouts. This prevents illegal copying of content. However, if the checked-out content is deleted at the check-out destination, the checked-out content does not exist and check-in cannot be performed. Therefore, in PC200, the number of checkouts is kept intact.
- “deemed check-in” means that the content data actually checked out to the PC 200 MD recording player 1 is unchecked content, that is, the entity of the content data has been deleted. This also means that the limited number of check-outs is restored by referring to the deletion history or the record history to check in.
- FIG. 16 shows a functional configuration of the PC 200 and the MD recording player 1 for realizing the third method.
- the PC 200 includes the recording history generation unit 204, and the MD recording player 1 includes the deletion history generation unit 105.
- the MD recording player 1 has a medium ID recorded in a secret area. In the recording history, the medium ID of the MD recording player 1 at the recording destination (moving destination) of the content data is also recorded.
- the PC 200 further includes a copyright protection unit 206.
- the copyright protection unit 206 limits the number of check-outs of the content, that is, the number of copies.
- the re-recording processing unit 203 reduces the number of check-outs by one. This makes it possible to match the number of checkouts given to the user with the actual content data.
- the MD recording player 1 reads the medium ID of the mini disc 90 (step S40).
- the PC 200 inquires the MD recording player 1 about the medium ID of the mini disc 90 (step S42).
- the MD recording player 1 sends the medium ID to the PC 200 (Step S43).
- the recording history generation unit 204 in the PC 200 records the medium ID of the MD recording player 1, the identification information of the specified content, the address of the recording area, and the recording date and time in the recording history (step S44). Subsequently, the content stored in the content storage unit 201 is The specified audio data is transmitted to the MD recording player 1 (step S45). The recording unit 102 of the MD recording player 1 records the content sent from the PC 200 on the mini disc 90 (Step S46).
- the content editing unit 103 Determines whether to further delete the audio data recorded on the mini-disc 90 in order to secure a capacity for recording the content to be added (step S48).
- the digital camera function of the MD recording player 1 is selected, and image data is recorded as the added content.
- the MD recording player 1 deletes the specified audio data (step S49) and records information on the deleted audio data in the deletion history. Yes (step S50).
- the MD recording player 1 transmits the deletion history information to the PC 200 (step S51).
- the PC 200 checks the recording capacity of the mini disc 90 (Step S52). If the recording capacity of the mini disc 90 is not enough to compensate for the deleted content (step S53, NO), the PC 200 displays an instruction for securing the capacity of the mini disc 90 to the user (step S53). S54). If the recording capacity is sufficient (YES in step S54), the recording history and the deletion history are compared with the media ID of the mini disc (step S55), and the deleted content is regarded and checked in (step S56). ).
- step S60 the content editing unit 103 in the MD recording player 1 determines whether to record or reproduce data (step S60). In the case of recording, it is further determined whether the recording capacity of the mini-disc is sufficient (step S61). If the recording capacity is insufficient, it is determined whether the content data to be newly recorded is in the audio mode or the digital camera mode (step S61). S62). In the case of image data, a list of image data recorded on the mini-disc is displayed (step S63).
- a list of audio data recorded on the mini-disc is displayed (step S64).
- the content data is selected and deleted according to the instruction selected by the user based on the displayed information (step S65).
- a graphic user interface for selecting whether or not to delete the content data is displayed.
- the deletion history generation unit 105 registers the deleted audio data or the content information of the image data in the deletion history.
- a deletion history is created, and new content data is additionally recorded on the mini-disc by the recording unit 102.
- the user can delete the deleted content data without having to memorize the content data by himself / herself. It is automatically restored based on the deletion history or recording history.
- the copyrighted data may be deleted. By matching the management information of the content data deleted under the rights protection, it can be restored and used.
- the deleted content can be restored based on the deletion history without storing the content deleted by the user. Further, even if content data whose movement and duplication between devices or between recording media are managed is deleted, the content data deleted under copyright protection can be restored and used. Also, content If there is a host device that can store the data, the device records the recording history of the content recorded on the recording medium, and identifies the deleted content from the recording history and information about the content recorded on the recording medium. be able to.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005516662A JPWO2005064476A1 (ja) | 2003-12-25 | 2004-12-24 | コンテンツ記録再生装置及びコンテンツ記録再生方法、情報処理装置、並びにコンテンツ記録再生システム |
US10/544,648 US8032008B2 (en) | 2003-12-25 | 2004-12-24 | Content recording/reproduction device, content recording/reproduction method, information processing device, and content recording/reproduction system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-430730 | 2003-12-25 | ||
JP2003430730 | 2003-12-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005064476A1 true WO2005064476A1 (ja) | 2005-07-14 |
Family
ID=34736355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/019416 WO2005064476A1 (ja) | 2003-12-25 | 2004-12-24 | コンテンツ記録再生装置及びコンテンツ記録再生方法、情報処理装置、並びにコンテンツ記録再生システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US8032008B2 (ja) |
JP (1) | JPWO2005064476A1 (ja) |
KR (1) | KR20060114627A (ja) |
CN (1) | CN1754157A (ja) |
WO (1) | WO2005064476A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1750267A1 (en) * | 2005-08-01 | 2007-02-07 | Sony Corporation | Information-processing apparatus, recording medium and information-processing method |
JP2007172244A (ja) * | 2005-12-21 | 2007-07-05 | Sharp Corp | コンテンツ管理システム、コンテンツ記録再生装置、関連情報取得用プログラム、及び、関連情報取得装置 |
US20090227888A1 (en) * | 2005-12-20 | 2009-09-10 | Smart Valley Software Oy | Method and an apparatus for measuring and analyzing movements of a human or an animal using sound signals |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7428621B1 (en) * | 2005-01-12 | 2008-09-23 | Emc Corporation | Methods and apparatus for storing a reflection on a storage system |
WO2011001470A1 (ja) * | 2009-07-02 | 2011-01-06 | 三菱電機株式会社 | データ記録装置、およびオーディオシステム |
JP2012080361A (ja) * | 2010-10-01 | 2012-04-19 | Sony Corp | 記録装置、撮像記録装置、記録方法及びプログラム |
CN102625158A (zh) * | 2011-08-10 | 2012-08-01 | 苏州闻道网络科技有限公司 | 视频管理系统 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003186754A (ja) * | 2001-10-11 | 2003-07-04 | Matsushita Electric Ind Co Ltd | 楽曲データ削除装置、楽曲データ管理システム、楽曲データ管理装置並びに楽曲データ削除方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3360598B2 (ja) * | 1998-02-18 | 2002-12-24 | ミノルタ株式会社 | 画像システム |
EP1014361B1 (en) * | 1998-12-11 | 2006-08-09 | Sony Corporation | Technique for controlling copying of data |
JP3977549B2 (ja) | 1999-04-30 | 2007-09-19 | 株式会社東芝 | コンテンツ管理方法、コンテンツ利用管理システム、コンテンツ利用管理装置及び再生装置 |
JP2001209586A (ja) * | 2000-01-26 | 2001-08-03 | Toshiba Corp | コンピュータにおけるコンテンツ管理装置及びコンテンツ管理方法 |
CN100414864C (zh) * | 2000-03-09 | 2008-08-27 | 松下电器产业株式会社 | 具有编辑装置和记录媒体的音频数据重放管理系统及方法 |
JP2002251494A (ja) * | 2000-12-20 | 2002-09-06 | Victor Co Of Japan Ltd | デジタルコンテンツデータ配信システム |
US20030110190A1 (en) * | 2001-12-10 | 2003-06-12 | Hitachi, Ltd. | Method and system for file space management |
WO2003050809A1 (en) * | 2001-12-10 | 2003-06-19 | Matsushita Electric Industrial Co., Ltd. | Recording/reproducing apparatus and recording/reproducing method |
US7369750B2 (en) * | 2002-04-24 | 2008-05-06 | Microsoft Corporation | Managing record events |
JP2004038515A (ja) * | 2002-07-03 | 2004-02-05 | Sanyo Electric Co Ltd | データ記録装置 |
US20040141723A1 (en) * | 2002-11-19 | 2004-07-22 | Keiichi Sakano | Editing apparatus |
GB2398199A (en) * | 2003-02-10 | 2004-08-11 | Nokia Corp | A system for transferring content audio and video data from a provider to a personal digital assistant |
US7506003B2 (en) * | 2005-07-14 | 2009-03-17 | Microsoft Corporation | Moving data from file on storage volume to alternate location to free space |
-
2004
- 2004-12-24 CN CNA2004800051192A patent/CN1754157A/zh active Pending
- 2004-12-24 WO PCT/JP2004/019416 patent/WO2005064476A1/ja active Application Filing
- 2004-12-24 US US10/544,648 patent/US8032008B2/en not_active Expired - Fee Related
- 2004-12-24 KR KR1020057015816A patent/KR20060114627A/ko not_active Application Discontinuation
- 2004-12-24 JP JP2005516662A patent/JPWO2005064476A1/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003186754A (ja) * | 2001-10-11 | 2003-07-04 | Matsushita Electric Ind Co Ltd | 楽曲データ削除装置、楽曲データ管理システム、楽曲データ管理装置並びに楽曲データ削除方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1750267A1 (en) * | 2005-08-01 | 2007-02-07 | Sony Corporation | Information-processing apparatus, recording medium and information-processing method |
US20090227888A1 (en) * | 2005-12-20 | 2009-09-10 | Smart Valley Software Oy | Method and an apparatus for measuring and analyzing movements of a human or an animal using sound signals |
US8540650B2 (en) * | 2005-12-20 | 2013-09-24 | Smart Valley Software Oy | Method and an apparatus for measuring and analyzing movements of a human or an animal using sound signals |
JP2007172244A (ja) * | 2005-12-21 | 2007-07-05 | Sharp Corp | コンテンツ管理システム、コンテンツ記録再生装置、関連情報取得用プログラム、及び、関連情報取得装置 |
Also Published As
Publication number | Publication date |
---|---|
US8032008B2 (en) | 2011-10-04 |
CN1754157A (zh) | 2006-03-29 |
KR20060114627A (ko) | 2006-11-07 |
US20060153031A1 (en) | 2006-07-13 |
JPWO2005064476A1 (ja) | 2007-07-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20070208916A1 (en) | Data-recording method, data-recording apparatus, and data-recording system | |
WO2004109686A1 (ja) | コンテンツデータ転送システムおよびコンテンツデータ転送方法 | |
JP4285375B2 (ja) | 記録再生装置、記録再生方法、並びにプログラム | |
JP4079090B2 (ja) | ディスク記録再生装置及びディスク記録再生方法 | |
US7706229B2 (en) | Recording medium having different areas recorded with different modulation methods, recording apparatus, reproducing apparatus, recording method, and reproducing method | |
WO2005064476A1 (ja) | コンテンツ記録再生装置及びコンテンツ記録再生方法、情報処理装置、並びにコンテンツ記録再生システム | |
JP4265527B2 (ja) | 再生装置及び再生方法、並びにコンテンツ記録方法 | |
JP3888353B2 (ja) | データ編集装置及びデータ編集方法 | |
JP4292988B2 (ja) | 記録装置及び方法 | |
WO2003094162A1 (en) | Magnetooptic disk | |
JP4345475B2 (ja) | ディスク再生装置及び方法 | |
JP2006164338A (ja) | データ記録再生装置及びデータ記録再生方法 | |
JP2004039110A (ja) | ディスク記録装置及びディスク記録方法、並びにディスク記録再生装置 | |
JP2005196882A (ja) | ディスク状記録媒体、データ記録装置及びデータ記録方法、並びにデータ再生装置及びデータ再生方法 | |
JP2005190569A (ja) | ディスク再生装置及び方法 | |
JP2005196850A (ja) | データ記録再生装置及びデータ記録再生方法 | |
JP2005196880A (ja) | データ再生装置及びデータ再生方法 | |
JP2006059470A (ja) | データ記録再生装置及びフォーカスバイアス設定方法 | |
JP2004039111A (ja) | ディスク記録装置及び方法、ディスク再生装置及び方法、並びにディスク記録再生装置 | |
JP2005216439A (ja) | 再生装置及び方法 | |
JP2005196881A (ja) | データ記録方法及びデータ記録装置、並びに記録媒体 | |
JP2005339695A (ja) | 記録再生装置及び方法 | |
JP2005302072A (ja) | 記録再生装置、管理情報読出方法 | |
JP2004087075A (ja) | 記録方法および記録装置、ならびに、編集方法 | |
JP2005276241A (ja) | データ記録再生装置及びデータ記録再生方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005516662 Country of ref document: JP |
|
ENP | Entry into the national phase |
Ref document number: 2006153031 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10544648 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20048051192 Country of ref document: CN Ref document number: 1020057015816 Country of ref document: KR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
WWP | Wipo information: published in national office |
Ref document number: 10544648 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057015816 Country of ref document: KR |
|
122 | Ep: pct application non-entry in european phase |