WO2001080237A2 - System and method for play while recording processing - Google Patents
System and method for play while recording processing Download PDFInfo
- Publication number
- WO2001080237A2 WO2001080237A2 PCT/US2001/012222 US0112222W WO0180237A2 WO 2001080237 A2 WO2001080237 A2 WO 2001080237A2 US 0112222 W US0112222 W US 0112222W WO 0180237 A2 WO0180237 A2 WO 0180237A2
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- WIPO (PCT)
- Prior art keywords
- data
- audio data
- play
- stream
- record
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Classifications
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- 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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
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- 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
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- 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
- G11B20/10527—Audio or video recording; Data buffering arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/7921—Processing of colour television signals in connection with recording for more than one processing mode
Definitions
- CDs Compact Discs
- DVDs Digital Video Discs
- MP3 files MP3 files
- WAV files WAV files
- Conventional recording approaches allow the user to convert a song from a CD to a variety of digital data formats that can then be stored on the user's computer. For example, a user may. convert a song from an audio CD to an MP3 format using a variety of programs. It is common for a user to record a song from audio CD to digital data format. After the song has been recorded the user can listen to the song, for example, by using a computer and a program that plays the digital data format.
- Another common problem is that conventional approaches require the user to completely finish recording a song before beginning to record a different song or set of songs. If the user interrupts the recording before it is complete, all of the recorded data is lost and the user must start from the beginning.
- the present invention is a method for recording and playing data.
- the method comprises incrementally recording a first set of data, and incrementally playing a second set of data wherein the incremental playing of the second set of data begins while incrementally recording the first set of data.
- the play while record system comprises a first device, a second device, a record module configured to record on the second device a first stream representing a first set of data from the first device, and a play module configured to play a second stream representing a second set of data from the second device wherein the play module plays the second stream while the record module records the first stream.
- Another embodiment of the present invention is a method for playing and simultaneously recording streams of audio data.
- the method comprises receiving a first stream of audio data from a first set of audio data; encoding the first stream of audio data to produce a first encoded stream of audio data; encrypting the first encoded stream of audio data to produce a first encrypted, encoded stream of audio data; saving the first encrypted, encoded stream of data to a first data file in a first storage location; reading a second encrypted, encoded stream of audio data from a second data file in a second storage location wherein the reading of the second encrypted, encoded stream of audio data begins while encoding the first stream of audio data; decrypting the second encrypted, encoded stream of audio data to produce a second encoded stream of audio data; and using a streaming audio player to play the second encoded stream of audio data.
- Another embodiment of the present invention is a method for playing and recording audio data at the same time.
- the method comprises recording audio data and playing the recorded audio data wherein the playing of the recorded audio data begins while recording the audio data.
- Another embodiment of the present invention is a method for processing audio data.
- the method comprises stream recording audio data, and stream playing the recorded audio data wherein the stream playing of the stream recorded audio data begins before the stream recording of the audio data is finished.
- Another embodiment of the present invention is a method for testing a CD-ROM drive to determine whether the CD-ROM drive can read fast enough to allow playable record, the method comprises, determining whether a CD- ROM drive has the capability to digitally extract data, determining whether the CD-ROM drive can digitally extract data above a threshold rate, and determining whether the CD-ROM drive can digitally extract without errors.
- Another embodiment of the present invention is a method for testing a CD-ROM drive to determine whether the CD-ROM drive can digitally extract without errors.
- the method comprises reading a set of data without using any error correction techniques and storing the first set of read data, reading the same set of data using at least one error correction technique and storing the second set of read data, comparing the first set of read data with the second set of read data, and determining whether differences between the first set of read data and the second set of read data exceed a threshold value.
- FIG. 1 illustrates a high-level block diagram of one embodiment of the present invention.
- Figure 2 illustrates a high-level block diagram of one embodiment of the present invention showing the flow of information among the CD-ROM drive, the playable record module, and the encoded data database.
- Figure 3 illustrates a high-level block diagram of one embodiment of the present invention showing the flow of information at a single time instance among the CD-ROM drive, the playable record module, and the encoded data database.
- Figure 4 illustrates a flowchart of one embodiment of recording a file.
- Figure 5 illustrates a flowchart of one embodiment of playing a file.
- Figure 6 illustrates a flowchart of one embodiment of initializing the CD-ROM drive.
- Figure 7 illustrates a flowchart of one embodiment of determining whether to use error correction.
- system and method which represent one embodiment and an example application of the invention will now be described with reference to the drawings. Variations to the system and method which represent other embodiments will also be described.
- the system and method are used to begin playing a recorded set of data before the recording of the set of data has been completed.
- a playable record module 100 communicates with a CD-ROM drive 120 as well as an encoded data database ("EDD") 130.
- the playable record module 100 includes two primary components, a record module 140 and a play module 150.
- the record module 140 includes a record process 145; and the play module 1 0 includes a play process 155.
- the playable record module 100 also includes a CD-ROM drive test process 160. While the record module 140 and play module 150 are implemented as separate components, it is recognized that in other embodiments, the record module 140 and the play module 150 may be implemented as a single component. In addition, the playable record module 100 may also contain additional processes.
- the present invention is not limited by the type of data to be played and recorded, and that the types of data include video, audio, audio-visual, slideshow, image, and text, the figures and descriptions relate to an embodiment of the invention using audio data.
- the word module refers to logic embodied in hardware or firmware, or to a collection of software instructions, possibly having entry and exit points, written in a programming language, such as, for example, C+ +.
- a software module may be compiled and linked into an executable program, or installed in a dynamic link library, or may be written in an interpretive language such as BASIC. It will be appreciated that software modules may be callable from other modules or from themselves, and/or may be invoked in response to detected events or interrupts.
- Software instructions may be embedded in firmware, such as an EPROM.
- hardware modules may be comprised of connected logic units, such as gates and flip-flops, and/or may be comprised of programmable units, such as programmable gate arrays or processors.
- the modules described herein are preferably implemented as software modules, but may be represented in hardware or firmware.
- the playable record module 100 incrementally reads an audio CD file from the CD-ROM drive 120, converts the audio CD file into encoded data, incrementally stores the encoded data in the EDD 130, and incrementally plays the encoded data.
- the audio file is processed in incremental blocks.
- the incremental blocks may vary in size and may be, for example, a set of 2358 bytes or 8192 bytes, as well as any other sizes of blocks.
- Figure 2 illustrates the flow of information for playing and recording a block of one audio file recorded from an audio CD file 210.
- the record module 140 reads a block of audio CD data 220 from the CD-ROM drive 120.
- the record module 140 encodes the block of data 230.
- the record module 140 encrypts the block of encoded data 240.
- the record module 140 writes the block of encrypted encoded data 250 to the EDD 130.
- the play module 150 in an event B1, reads the block of encrypted encoded data 260 from the EDD 130.
- the play module 150 decrypts the encrypted encoded block of data 270.
- the play module 150 "plays" the block of encoded data 280.
- Figure 3 illustrates one embodiment of the playable record system at a single time instance that is recording an audio CD file 210.
- blocks 1-25 310 have already been recorded and written to the EDD 130.
- block 26 320 is being recorded by the record module 140
- block 1 330 is being played by the play module 150.
- the user is listening to the song as it is being recorded.
- This embodiment discloses a system that may begin playing after 25 blocks have been recorded. It will be recognized, however, that in other embodiments, the number of blocks that are recorded before the song begins "playing" may differ according to various factors such as CD-ROM drive speed, encoding type, encryption algorithm, file write speed, encoded database size and make, audio player type, as well as other factors.
- the playable record module 100 may begin "playing" a block of the encoded data soon after the block has been recorded even if the entire audio CD file has not been completely recorded. This allows the play module 150 to play one block of encoded data as the record module 140 is recording another block of audio CD data. The system may play part of the same song it is recording.
- the playable record module 100 is able to record an audio CD file in less time than it takes to play the encoded data file. Thus, by the time the encoded data file is finished playing, the record module 140 has finished recording the audio CD file, and, if desired, may have already begun recording another audio CD file.
- the playable record module 100 allows the user to stop the recording of one audio CD file and begin the recording of another audio CD file.
- the recorded portion of the first audio CD file is saved such that the user may resume recording the first audio CD file at a later time without having to "re- record” the portion of the audio CD file that has already been recorded.
- the playable record module 100 determines what portion was already recorded and may resume recording where it left off.
- the playable record module 100 does not require the user to wait as the songs are being recorded; the user has immediate and direct access to play the songs. For example, suppose a user chooses to listen to song A. As the user listens to song A, the user is actually listening to the encoded data file version of song A as song A is being recorded from the audio CD file version of song A to the encoded data file version of song A. Next, suppose the user chooses to stop listening to song A and selects song B instead. As the user listens to the song B, the user is actually listening to the encoded data file version of B as song B is being recorded from the audio CD file version of song B to the encoded data file version of song B.
- the playable record module 100 may play the encoded data file version of song A from the beginning as it resumes the recording where it left off. From the user's perspective, the recording occurs as the user listens to the music and does not require long periods of "wait" time.
- the embodiment includes a playable record module 100, a CD-ROM drive 120, and an encoded data database 130.
- the playable record module 100 includes two primary modules, the record module 140 and the play module 150. While the record module 140 and play module 150 are implemented as separate components, it is recognized that in other embodiments, the record module 140 and the play module 150 may be implemented as a single component.
- Figure 1 illustrates one embodiment of the record module 140 that records audio files from audio CD data to a variety of encoded data formats.
- the record module 140 includes the record process 145.
- Figure 1 illustrates one embodiment of the play module 150 that plays a song from an encrypted encoded data file.
- the play module 150 includes the play process 155.
- the playable record module 100 records songs stored in audio files on a compact disc (CD) that is accessed through a standard CD-ROM drive 120. While this embodiment records songs from a standard CD-ROM drive 120, it is recognized that, in other embodiments, the songs may be recorded from other storage media such as, for example, a read/write CD drive, a Digital Video Disc (“DVD”) drive, a hard drive, remote storage via network or wireless connection, a download file connection, a streaming file connection, and so forth.
- the data recorded may include other types of data in addition to audio data such as, for example, video, audio-visual, slide show, image, text, and so forth.
- the system may include an encoded data database (“EDD”) 130 as illustrated in Figure
- EDD 130 maintains the encoded data files. Furthermore, the EDD 130 may include information about the encoded data files, such as, for example, the name of the song, the size of the song, the artist name, the CD or album name, the playtime length, the encoded data format, the encryption type, and so forth. In addition, the EDD 130 may include information about partially recorded data files, such as, for example, the name of the song, the size of the song, the number of bits/bytes/blocks recorded, the block size, the date of the last recording, and so forth. The EDD 130 may include other information pertaining to the encoded data files.
- EDD 130 there may be several processes (not shown) such as ID generators, number generators, statistic generators, and so forth that work in concert with the database.
- the EDD 130 is implemented using CodeBase, a semi-relational database offered by Sequiter.
- CodeBase is a high-speed xBase-compatible database engine that works with C/C + +, Visual Basic, Delphi and Java under standalone and client/server environments.
- the EDD 130 may be implemented using a different type of relational database, such as Sybase, Oracle, Microsoft ® SQL Server, and so forth as well as other types of databases such as, for example, a flat file database, an entity-relationship database, and object- oriented database, a record-based database, and so forth.
- EDD 130 depicted in Figure 1 is implemented as a single database, it is recognized that in other embodiments, the EDD 130 may be implemented as a set of databases or as other data structures well known in the art such as tables, trees, linked lists, and so forth.
- the playable record module 100 includes a record module 140 with a record process 145, a play module 150 with a play process 155, and a CD-ROM drive test process 160.
- the record process 145 proceeds to an initialization state 420.
- the record process 145 may obtain information about the CD-ROM drive 120, the size of the music file, information about the song (e.g., title, artist, album, etc.), as well as other information.
- This CD-ROM drive information may be obtained, for example, from the CD-ROM drive 120, from a local database of CD-ROM drive information, from a remote database of CD-ROM drive information, from user input, and so forth.
- the record process 145 may also calculate the number of blocks in the file, determine whether a portion of the file has already been recorded, determine the encoding format, determine the encryption format, and so forth.
- the music file information may be obtained, for example, from the CD-ROM file, from a local database of CD information, from a remote database of CD information, from user input, and so forth.
- the record process 145 then proceeds to a get block state 430, wherein the record process 145 reads the first block of audio CD data from the CD-ROM drive 120 and proceeds to an encode block state 440.
- the record process 145 may perform functions on the data (not shown). For example, the record process 145 may convert the block of data from analog to digital, use error correction techniques to condition the data, and so forth.
- the record process 145 encodes the block using the appropriate encoding technique and proceeds to an encrypt block state 450.
- the encoding technique may be selected by the user, selected by the record process 145, hard coded into the record module 140, or determined by other modules.
- the record process 145 translates the audio file into an encoded data format such as, for example, an MP3 file, a G2 file, a WAV file, an ACWMA file, and so forth.
- the encoding process may use, for example, the Xing MP3 encoder, the RealProducer encoder, the WMA encoder, or a combination of various encoding techniques.
- the encoding process may include encoding techniques that allow the record module 140 to encode in multiple file formats.
- the user may elect to record into MP3 format for song A, G2 format for song B, and both MP3 format and G2 format for song C.
- the record process 145 encrypts the block using the appropriate encryption technique and proceeds to a write block state 460.
- the encryption technique may be selected by the user, selected by the record process 145, hard coded into the record module 140, or determined by other modules.
- the record process 145 encrypts the encoded data to prevent unauthorized access. It is recognized that a variety of encryption techniques may be used.
- the encryption process may use symmetric key encryption, asymmetric encryption, a combination of both symmetric encryption and asymmetric encryption, other methods of encryption, or no encryption at all.
- the encryption process may utilize multiple encryption techniques.
- the encryption process uses well-known encryption algorithms such as the Counterpane Lab's Twofish encryption algorithm or Microsoft's Crypto API.
- Applied Cryptography: Protocols, Algorithms, and Source code in C, Second Edition by Bruce Schneier, published by John Wiley & Sons, 1996.
- the record process 145 writes the block to a file in the EDD 130 and proceeds to a state 470.
- the record process 145 uses standard file writing techniques and identifies the portion of the encrypted encoded data that has been written to the file. It will be appreciated that a file pointer, byte offset, bit offset, or block offset, along with a file identifier may be used to identify the written portion. This information may be used by the record module 140 to finish recording a partially-recorded song.
- the record process 145 determines whether it is at the end of the file. If not, the record process 145 proceeds to the get block state 430 and continues until it has recorded every block of the file. Once all blocks of the file have been recorded, the record process 145 proceeds to an end state 480. It is recognized that while Figure 4 illustrates a record process 145 that records an entire file, in one embodiment, the record process 145 may be interrupted such that only a portion of the song is recorded. For example, the user may interrupt the record process 145 and the record process 145 may store information on the interrupted recording allowing the user to resume recording at a later time. This interrupted recording information may include data such as, for example, the number of blocks recorded, the block size, the encoding technique, the encryption method, if any, the date recorded, and so forth.
- Figure 4 illustrates one embodiment of the record process 145.
- the record process 145 may be implemented in a different manner.
- the record process 145 may be implemented in combination with one or more other process, and/or additional processes (not shown) may also be used by the record module 140.
- portions of the record process 145 may be omitted, such as, for example, the initialization state 420 and/or the encrypt block state 450.
- the play process 155 proceeds to a pre-roll state 520.
- the play process 155 determines if enough blocks have been recorded such that the process may continue to an initialization state 530. To determine whether enough blocks have been recorded to begin playback, the play process 155 may perform a database lookup of the type of encoding and encryption formats; the play process 155 may perform calculations in real-time; the play process 155 may attempt to fill a pre-designated buffer; and so forth.
- the play process 155 retrieves information about the song such as, for example, the song title, artist, song length, CD, and so forth. Proceeding to a get block state 540, the read process reads a block of data from the EDD 130 and proceeds to a decrypt block state 550.
- the play process 155 decrypts the block of data using the appropriate decryption algorithm and proceeds to a play block state 560.
- the play process 155 may use one or more of a number of methods to determine the appropriate decryption algorithm that corresponds to the type of encryption algorithm used, such as, for example, storing the type of encryption used in the EDD 130, naming the file with an encryption type code, implementing the playable record module 100 with a single encryption algorithm, and so forth.
- the decryption process may utilize a variety of well-known decryption algorithms depending on how the data was encrypted.
- the decryption process may use symmetric key decryption, asymmetric decryption, a combination of both symmetric decryption and asymmetric decryption, other methods of decryption, or no decryption at all.
- the decryption process may utilize multiple decryption techniques allowing the play module 150 to decrypt different types of encrypted data.
- the decryption process uses well- known decryption algorithms such as the Counterpane Lab's Twofish decryption algorithm or Microsoft's Crypto API.
- the play process 155 plays the encoded block of data using the appropriate audio file player and proceeds to a state 570.
- the play process 155 may use a number of methods to determine the appropriate audio file player that corresponds to the type of encoding technique used, such as, for example, storing the type of encoding technique used in the EDD 130, naming the file with an encoding technique code, implementing the playable record module 100 with a single encoding technique, and so forth.
- the play process 155 may recognize a variety of encoding formats and may utilize one or more encoded data players that decode and play different encoded formats. This allows the play process 155 to play songs that have been recorded in different formats.
- the play process 155 may recognize various encoded data formats such as, for example, MP3, G2, WAV, ACWMA, and so forth.
- the play process 155 may recognize that a song is in a G2 format and use the RealAudio Player, by RealNetworks, Inc., to decode and play the encoded data. While multiple encoding formats are utilized in this embodiment, it is recognized that in some embodiments a single encoding format may be used.
- the play process 155 determines whether it has reached the end of the file. If not, the play process 1 5 proceeds to the get block state 540 and reads another block of data from the file. Once the entire song has been played, the play process 155 proceeds to an end state 580.
- Figure 5 illustrates one embodiment of a play process 155 that plays an entire file.
- the play process 155 may be interrupted by the user such that only a portion of the song is played.
- Figure 5 illustrates one embodiment of the play process 155.
- the play process 155 may be implemented in a different manner.
- the play process 155 may be implemented in combination with one or more other processes, and/or additional processes (not shown) may also be used by the play module 150.
- portions of the play process 155 may be omitted, such as, for example, the decrypt block state 550, the pre-roll state 520, and/or the initialization block state 530.
- the play process 155 may be triggered by the record state 520 once enough blocks were recorded such that the pre-roll state 520 may be omitted.
- the pre-roll process may be included as part of the record process 145, as part of an independent process, or as part of a different module.
- the initialization state 530 may be executed before the pre-roll state 520.
- both the record process 145 and the play process 155 process music files incrementally, it is not necessary that the increments of data are the same size.
- the record module 140 may record blocks of size X while the play module 150 uses blocks of size Y.
- both the record module 140 and the play module 150 may record and play blocks of size Z.
- the playable record module 100 includes a CD-ROM drive test process ("test process") 160.
- the test process 160 queries the CD-ROM drive 120 to determine whether or not the CD-ROM drive 120 is capable of providing data at a rate that allows the record process 145 to run at least as fast as the play process 155.
- the test process 160 may perform several tests to set various flags that can be used by the playable record module 100. For example, the test process 160 determines whether or not the CD-ROM drive 120 can handle digital extraction. If so, then the record module 140 may perform as illustrated in Figure 4. If not, then the record module 140 may have to perform an analog to digital conversion before the block of data can be encoded and encrypted.
- the record process 145 may, by default, attempt to convert from analog to digital until it recognizes the data as digital data, and so forth.
- Figure 6 is a flowchart representing states comprising one embodiment of the test process 160.
- the test process 160 proceeds to a state 620, wherein the test process 160 determines whether the CD-ROM drive 120 is capable of handling digital extraction. Such determination may be made, for example, using a database look up of the CD-ROM drive 120 model and make, short run time tests, as well as a variety of other methods. If the CD-ROM drive 120 is capable of handling digital extraction, then the test process 160 proceeds to a state 630; if not, then the test process 160 sets the "Digital" flag to NO in a state 640. In the state 630, the test process 160 determines whether the CD-ROM drive 120 can extract fast enough to permit playing while recording.
- test process 160 determines whether the CD-ROM drive 120 can extract without errors.
- One embodiment of an error determination process is illustrated in Figure 7 and is described below. If the CD-ROM drive 120 can extract without errors, then the test process 160 proceeds to a state 670, wherein the "Error Correction” flag is set to YES, and the test process 160 proceeds to an end state 690. If the CD-ROM drive 120 can not extract without errors, the test process 160 proceeds to a state 680 wherein the "Error Correction” flag is set to NO and the test process 160 then proceeds to the end state 690.
- Figure 7 is a flow chart representing states comprising one embodiment of the error determination process. Beginning at a start state 710, the error determination process proceeds to a state 720 wherein the error determination process reads N blocks of data without using any error correction mode and then proceeds to a state 730. In the state 730, the error determination process reads the same N blocks of data with error correction mode and proceeds to a state 740. In the state 740, the error determination process compares the first set of data with the second set of data and proceeds to a state 750. In the state 750, the error determination process checks to see if there is a difference between the first set of data and the second set of data.
- the error determination process assumes that there is an error and proceeds to a state 760 wherein the "Error Correction" flag is set to YES, and the error determination process proceeds to an end state 780. Otherwise, if there is no difference, then the error determination process assumes that there are no errors and proceeds to a state 770 wherein the "Error Correction" flag is set to NO. The error determination process then proceeds to an end state 780. It is recognized other embodiments may use different methods of determining whether or not error correction should be used. At the end of the CD-ROM test process 160, it will have been determined whether or not the CD-ROM drive
- the test process 160 may be run a single time prior to play and record operations, each time a new playable record module 100 is installed, and/or when a new CD-ROM drive 120 is added to the system. While, in this embodiment, the test process 160 is part of the playable record module 100, it is recognized that in other embodiments the test process 160 may be part of another module such as the installation module and so forth.
- test process for a CD-ROM drive
- similar test processes may be used in conjunction with other types of CD-ROM drives as well as other media with the goal being to assess sufficient digital extraction speed and error corrections capability.
- the other types of media may include, for example, read/write CD drives, DVD drives, hard disk, remote storage via network or wireless connection, and so forth.
Abstract
Description
Claims
Priority Applications (2)
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US09/549,988 US6937814B1 (en) | 2000-04-14 | 2000-04-14 | System and method for play while recording processing |
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WO2001080237A2 true WO2001080237A2 (en) | 2001-10-25 |
WO2001080237A3 WO2001080237A3 (en) | 2002-03-21 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1248257A2 (en) * | 2001-03-13 | 2002-10-09 | Pioneer Corporation | Apparatus and method for information record and playback, and program record medium recording information record and playback procedure program |
GB2391687A (en) * | 2002-08-09 | 2004-02-11 | Tecton Ltd | Digital video recorder with simultaneous record and playback capability |
WO2004044910A1 (en) * | 2002-11-14 | 2004-05-27 | Koninklijke Philips Electronics N.V. | Secure local copy protection |
US10141028B2 (en) | 2000-04-14 | 2018-11-27 | Intel Corporation | System and method for play while recording processing |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1010175A4 (en) * | 1997-07-09 | 2005-06-22 | Advanced Audio Devices Llc | Optical storage device |
US7050376B2 (en) | 2000-09-19 | 2006-05-23 | Lg Electronics Inc. | Optical disc player and method for reproducing thereof |
FI115356B (en) * | 2001-06-29 | 2005-04-15 | Nokia Corp | A method for processing audio-visual information in an electronic device, a system and an electronic device |
FI115257B (en) * | 2001-08-07 | 2005-03-31 | Nokia Corp | Method for Processing Information in an Electronic Device, System, Electronic Device, and Processor Block |
DK1597727T3 (en) * | 2003-02-20 | 2012-04-16 | Koninkl Philips Electronics Nv | Information carrier comprehensive access information |
JP4459590B2 (en) * | 2003-10-10 | 2010-04-28 | パナソニック株式会社 | DTV data processing device |
US20050234985A1 (en) * | 2004-04-09 | 2005-10-20 | Nexjenn Media, Inc. | System, method and computer program product for extracting metadata faster than real-time |
US20060098945A1 (en) * | 2004-11-08 | 2006-05-11 | Samsung Electronics Co., Ltd. | Method for storing audio data of audio and video (AV) device |
US7756466B2 (en) * | 2006-08-11 | 2010-07-13 | Denso Corporation | Audio control apparatus, audio system, and navigation apparatus |
US8571384B2 (en) * | 2007-03-16 | 2013-10-29 | Realtek Semiconductor Corp. | Digital video recorder, digital video system, and video playback method thereof |
US20080225940A1 (en) * | 2007-03-16 | 2008-09-18 | Chen Ma | Digital video apparatus and method thereof for video playing and recording |
JP2009077044A (en) * | 2007-09-19 | 2009-04-09 | Toshiba Corp | Broadcast receiving device and method |
US8948574B2 (en) * | 2008-11-24 | 2015-02-03 | Mediatek Inc. | Multimedia recording apparatus and method |
US9253230B2 (en) * | 2012-08-30 | 2016-02-02 | Qualcomm Technologies International, Ltd. | Reducing latency in multiple unicast transmissions |
US10103872B2 (en) * | 2014-09-26 | 2018-10-16 | Intel Corporation | Securing audio communications |
US9426159B2 (en) | 2014-09-26 | 2016-08-23 | Intel Corporation | Securing sensor data |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07249271A (en) * | 1994-03-10 | 1995-09-26 | Intec:Kk | Test method for cd-rom record |
WO1999033265A1 (en) * | 1997-12-23 | 1999-07-01 | Intel Corporation | Method of time shifting to simultaneously record and play a data stream |
WO2001035405A1 (en) * | 1999-11-10 | 2001-05-17 | Thomson Licensing S.A. | Buffer optimization for simultaneous encoding-decoding and pause-catch-up for real-time dvd recorder |
Family Cites Families (107)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US695833A (en) * | 1900-06-27 | 1902-03-18 | Enoch S Perkins | Truck. |
US4430726A (en) * | 1981-06-18 | 1984-02-07 | Bell Telephone Laboratories, Incorporated | Dictation/transcription method and arrangement |
JP2940196B2 (en) * | 1991-02-08 | 1999-08-25 | ソニー株式会社 | Recording and playback device |
US5525748A (en) * | 1992-03-10 | 1996-06-11 | Yamaha Corporation | Tone data recording and reproducing device |
JP3433811B2 (en) * | 1992-09-30 | 2003-08-04 | ソニー株式会社 | Disk duplication device |
ATE179808T1 (en) * | 1992-10-19 | 1999-05-15 | Koninkl Philips Electronics Nv | DEVICE FOR STORING A DATA SIGNAL IN A MEMORY AND REPLAYING THE DATA SIGNAL FROM THIS MEMORY |
US5371551A (en) | 1992-10-29 | 1994-12-06 | Logan; James | Time delayed digital video system using concurrent recording and playback |
US5355486A (en) * | 1993-01-21 | 1994-10-11 | Conner Peripherals, Inc. | System for allocating tasks between two actuators servicing the same magnetic disk media in a single disk drive |
US5577266A (en) * | 1993-04-08 | 1996-11-19 | Digital D.J. Inc. | Broadcast system with associated data capabilities |
EP0619677A3 (en) * | 1993-04-09 | 1995-03-08 | Matsushita Electric Ind Co Ltd | System for scrambling a digital video signal. |
JP3353382B2 (en) * | 1993-04-23 | 2002-12-03 | ソニー株式会社 | Recording or reproducing device and memory control device |
JPH0778412A (en) * | 1993-07-13 | 1995-03-20 | Sony Corp | Device and method for recording/reproducing and device and method for reproducing |
JP2927648B2 (en) | 1993-07-16 | 1999-07-28 | シャープ株式会社 | Information reproduction method and information recording / reproduction method |
JP2944859B2 (en) * | 1993-07-22 | 1999-09-06 | シャープ株式会社 | High-speed data dubbing method |
JP2577699B2 (en) * | 1993-08-26 | 1997-02-05 | 日本電信電話株式会社 | Multiple reading / writing method |
US5457495A (en) * | 1994-05-25 | 1995-10-10 | At&T Ipm Corp. | Adaptive video coder with dynamic bit allocation |
JP3601034B2 (en) * | 1994-08-19 | 2004-12-15 | ソニー株式会社 | Authoring system and disc authoring method |
JPH08124365A (en) | 1994-10-24 | 1996-05-17 | Pioneer Electron Corp | Recording and reproducing device |
IL115806A0 (en) * | 1994-11-10 | 1996-01-19 | Dsp Group Inc | Sound file playing unit |
US6002832A (en) * | 1995-02-09 | 1999-12-14 | Matsushita Electric Industrial Co., Ltd. | Apparatus and method for recording and reproducing data |
JP3511721B2 (en) | 1995-03-15 | 2004-03-29 | ソニー株式会社 | Information processing method and apparatus |
EP0821859B1 (en) * | 1995-04-21 | 2006-01-04 | Imedia Corporation | An in-home digital video unit with combined archival storage and high-access storage |
JPH08292842A (en) * | 1995-04-24 | 1996-11-05 | Matsushita Electric Ind Co Ltd | Video server device |
US5914941A (en) * | 1995-05-25 | 1999-06-22 | Information Highway Media Corporation | Portable information storage/playback apparatus having a data interface |
US5724646A (en) * | 1995-06-15 | 1998-03-03 | International Business Machines Corporation | Fixed video-on-demand |
JP3566458B2 (en) * | 1995-08-30 | 2004-09-15 | 株式会社東芝 | Archive device |
US5917910A (en) * | 1995-10-16 | 1999-06-29 | Sony Corporation | Encrypting method and apparatus, recording method, decrypting method and apparatus, and recording medium |
TW329518B (en) * | 1995-12-08 | 1998-04-11 | Sony Co Ltd | Information data recording-replaying device |
EP0878097B1 (en) * | 1996-01-08 | 2003-03-26 | International Business Machines Corporation | File server for multimedia file distribution |
US5996022A (en) * | 1996-06-03 | 1999-11-30 | Webtv Networks, Inc. | Transcoding data in a proxy computer prior to transmitting the audio data to a client |
US5838678A (en) * | 1996-07-24 | 1998-11-17 | Davis; Joseph W. | Method and device for preprocessing streams of encoded data to facilitate decoding streams back-to back |
US7203415B2 (en) * | 1996-08-12 | 2007-04-10 | Sony Corporation | Recording, reproducing, and recording/reproducing apparatuses for recording input data in a recording medium capable of non-linear access and methods therefor |
KR100566049B1 (en) * | 1996-09-16 | 2007-04-25 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Recording and playback system for simultaneous recording and playback through information carriers |
US6263411B1 (en) * | 1996-09-20 | 2001-07-17 | Matsushita Electric Industrial Co., Ltd. | Video server scheduling for simultaneous read-write requests |
US7068913B1 (en) * | 1997-02-03 | 2006-06-27 | Matsushita Electric Industrial Co., Ltd. | Data processing system, recording/reproducing device, data processing method and file management method |
US6049892C1 (en) * | 1997-02-24 | 2002-06-04 | Ethos Software Corp | Process and apparatus for downloading data from a server computer to a client computer |
US6721491B1 (en) * | 1999-12-22 | 2004-04-13 | Sightsound Technologies, Inc. | Method and system for manipulation of audio or video signals |
DE69805563T2 (en) * | 1997-03-19 | 2003-01-16 | Toshiba Kawasaki Kk | A disc device with a single recording head capable of recording and playing back simultaneously |
EP0874368A3 (en) * | 1997-04-25 | 2003-03-19 | Sony Corporation | Information recording apparatus and method, and information reproducing apparatus and method |
US6014694A (en) * | 1997-06-26 | 2000-01-11 | Citrix Systems, Inc. | System for adaptive video/audio transport over a network |
JP3528524B2 (en) * | 1997-07-10 | 2004-05-17 | ソニー株式会社 | Recording / reproducing apparatus, recording / reproducing method, and recording medium |
JP3971487B2 (en) * | 1997-07-10 | 2007-09-05 | ソニー株式会社 | Recording apparatus, recording method, and recording medium |
JPH1166736A (en) * | 1997-08-20 | 1999-03-09 | Hitachi Ltd | Recorder |
US20020057892A1 (en) * | 1997-09-30 | 2002-05-16 | Yoshizumi Mano | Video recording device including the ability to concurrently record and playback |
US6327418B1 (en) * | 1997-10-10 | 2001-12-04 | Tivo Inc. | Method and apparatus implementing random access and time-based functions on a continuous stream of formatted digital data |
KR100287366B1 (en) * | 1997-11-24 | 2001-04-16 | 윤순조 | Portable device for reproducing sound by mpeg and method thereof |
US6769019B2 (en) * | 1997-12-10 | 2004-07-27 | Xavier Ferguson | Method of background downloading of information from a computer network |
EP0971353A1 (en) | 1998-01-16 | 2000-01-12 | Matsushita Electric Industrial Co., Ltd. | Av data input/output device |
JP4320817B2 (en) * | 1998-02-09 | 2009-08-26 | ソニー株式会社 | Recording / reproducing apparatus, recording / reproducing system, recording / reproducing method, and program |
US6259482B1 (en) | 1998-03-11 | 2001-07-10 | Matthew F. Easley | Digital BTSC compander system |
US7068918B1 (en) * | 1998-05-01 | 2006-06-27 | Samsung Electronics Co., Ltd. | Recording medium for storing real time recording/reproduction information, method and apparatus for recording and reproducing in real time, and file operating method using the same |
GB2332772A (en) * | 1998-07-29 | 1999-06-30 | Samsung Electronics Co Ltd | Audio player which downloads files from a server. |
US6233389B1 (en) * | 1998-07-30 | 2001-05-15 | Tivo, Inc. | Multimedia time warping system |
JP2000057747A (en) | 1998-08-05 | 2000-02-25 | Sanyo Electric Co Ltd | Audio dubbing system and storage medium |
US20020057893A1 (en) * | 1998-08-11 | 2002-05-16 | Anthony Wood | Digital recording and playback |
AU5781599A (en) * | 1998-08-23 | 2000-03-14 | Open Entertainment, Inc. | Transaction system for transporting media files from content provider sources tohome entertainment devices |
CN1254877A (en) * | 1998-08-24 | 2000-05-31 | 世韩情报系统株式会社 | Portable MP3 player with multiple functions |
US6678227B1 (en) * | 1998-10-06 | 2004-01-13 | Matsushita Electric Industrial Co., Ltd. | Simultaneous recording and reproduction apparatus and simultaneous multi-channel reproduction apparatus |
US6298381B1 (en) * | 1998-10-20 | 2001-10-02 | Cisco Technology, Inc. | System and method for information retrieval regarding services |
KR100643871B1 (en) * | 1998-10-27 | 2006-11-13 | 소니 가부시끼 가이샤 | Recording Apparatus |
US6298385B1 (en) * | 1998-10-28 | 2001-10-02 | Qwest Communications Int'l., Inc. | Method and apparatus for optimizing playback of media files over a data network |
EP1001419B1 (en) * | 1998-11-09 | 2004-03-03 | Matsushita Electric Industrial Co., Ltd. | Data conversion apparatus and method in copyright protecting system |
JP2000148546A (en) * | 1998-11-10 | 2000-05-30 | Nec Corp | Data input/output device, its method and recording medium |
US6212555B1 (en) * | 1998-11-16 | 2001-04-03 | William E. Brooks, Jr. | Audio transfer, storage and playback system |
JP4119025B2 (en) * | 1998-12-10 | 2008-07-16 | 株式会社日立製作所 | Broadcast video automatic recording device |
KR100332763B1 (en) * | 1999-02-10 | 2002-04-17 | 구자홍 | Copy protection apparatus and method for digital data player |
US6577735B1 (en) * | 1999-02-12 | 2003-06-10 | Hewlett-Packard Development Company, L.P. | System and method for backing-up data stored on a portable audio player |
US6233252B1 (en) * | 1999-02-16 | 2001-05-15 | Cyberstar, L.P. | Transfer of very large digital data files via a fragmentation and reassembly methodology |
JP2000251381A (en) | 1999-02-25 | 2000-09-14 | Sony Corp | Disk dubbing system |
JP4296624B2 (en) * | 1999-03-01 | 2009-07-15 | ソニー株式会社 | Data receiver |
TW529267B (en) * | 1999-03-15 | 2003-04-21 | Sony Corp | Data processing system and method for mutual identification between apparatuses |
US6401239B1 (en) * | 1999-03-22 | 2002-06-04 | B.I.S. Advanced Software Systems Ltd. | System and method for quick downloading of electronic files |
JP3382176B2 (en) * | 1999-03-26 | 2003-03-04 | 株式会社東芝 | Request processing method and request processing device |
US7665111B1 (en) * | 1999-10-20 | 2010-02-16 | Tivo Inc. | Data storage management and scheduling system |
US6766426B1 (en) * | 1999-03-31 | 2004-07-20 | Sony Corporation | Apparatus and method for moving data among memories of networked devices |
US6748481B1 (en) * | 1999-04-06 | 2004-06-08 | Microsoft Corporation | Streaming information appliance with circular buffer for receiving and selectively reading blocks of streaming information |
US6618789B1 (en) * | 1999-04-07 | 2003-09-09 | Sony Corporation | Security memory card compatible with secure and non-secure data processing systems |
US6791907B2 (en) * | 1999-04-22 | 2004-09-14 | Roxio, Inc. | Automobile audio system for collection, management and playback of audio data |
US6922781B1 (en) * | 1999-04-30 | 2005-07-26 | Ideaflood, Inc. | Method and apparatus for identifying and characterizing errant electronic files |
US6160501A (en) * | 1999-05-11 | 2000-12-12 | Intel Corporation | Storing packet data |
US6239793B1 (en) * | 1999-05-20 | 2001-05-29 | Rotor Communications Corporation | Method and apparatus for synchronizing the broadcast content of interactive internet-based programs |
EP1188318A1 (en) * | 1999-06-03 | 2002-03-20 | Iviewit Holdings, Inc. | System and method for providing an enhanced digital video file |
US6697365B1 (en) * | 1999-06-10 | 2004-02-24 | Charles Hayes Messenger | Method of listener transmitted broadcasting |
US6845398B1 (en) * | 1999-08-02 | 2005-01-18 | Lucent Technologies Inc. | Wireless multimedia player |
US6647417B1 (en) * | 2000-02-10 | 2003-11-11 | World Theatre, Inc. | Music distribution systems |
US6785704B1 (en) * | 1999-12-20 | 2004-08-31 | Fastforward Networks | Content distribution system for operation over an internetwork including content peering arrangements |
JP2001093226A (en) * | 1999-09-21 | 2001-04-06 | Sony Corp | Information communication system and method, and information communication device and method |
US6690882B1 (en) * | 1999-09-27 | 2004-02-10 | Western Digital Technologies, Inc. | Method of operating a disk drive for reading and writing audiovisual data on an urgent basis |
US7529806B1 (en) * | 1999-11-04 | 2009-05-05 | Koninklijke Philips Electronics N.V. | Partitioning of MP3 content file for emulating streaming |
US6697944B1 (en) * | 1999-10-01 | 2004-02-24 | Microsoft Corporation | Digital content distribution, transmission and protection system and method, and portable device for use therewith |
AU2018201A (en) * | 1999-10-12 | 2001-04-23 | Perception Digital Technology (Bvi) Limited | Digital multimedia jukebox |
US7191462B1 (en) * | 1999-11-08 | 2007-03-13 | Kendyl A. Román | System for transmitting video images over a computer network to a remote receiver |
US6816846B1 (en) * | 1999-11-12 | 2004-11-09 | Xerox Corporation | Method for generating rich sound environments using genetic or shaped algorithms |
US7945284B1 (en) * | 1999-11-23 | 2011-05-17 | Agere Systems Inc. | Cordless telephone with MP3 player capability |
US6807550B1 (en) * | 1999-12-01 | 2004-10-19 | Microsoft Corporation | Methods and systems for providing random access to structured media content |
KR100346264B1 (en) * | 1999-12-02 | 2002-07-26 | 엘지전자주식회사 | Multimedia Feature Description System Using Weight And Reliability |
US7149359B1 (en) * | 1999-12-16 | 2006-12-12 | Microsoft Corporation | Searching and recording media streams |
US7096481B1 (en) * | 2000-01-04 | 2006-08-22 | Emc Corporation | Preparation of metadata for splicing of encoded MPEG video and audio |
US6665726B1 (en) * | 2000-01-06 | 2003-12-16 | Akamai Technologies, Inc. | Method and system for fault tolerant media streaming over the internet |
US6956833B1 (en) * | 2000-02-08 | 2005-10-18 | Sony Corporation | Method, system and devices for wireless data storage on a server and data retrieval |
US6442517B1 (en) | 2000-02-18 | 2002-08-27 | First International Digital, Inc. | Methods and system for encoding an audio sequence with synchronized data and outputting the same |
US7325145B1 (en) * | 2000-02-18 | 2008-01-29 | Microsoft Corporation | Verifying the presence of an original data storage medium |
US6760535B1 (en) * | 2000-03-27 | 2004-07-06 | Ati International Srl | Method and apparatus for cache management for a digital VCR archive |
US6937813B1 (en) * | 2000-03-31 | 2005-08-30 | Intel Corporation | Digital video storage and replay system |
US6937814B1 (en) * | 2000-04-14 | 2005-08-30 | Realnetworks, Inc. | System and method for play while recording processing |
JP4019604B2 (en) * | 2000-05-09 | 2007-12-12 | 日本電気株式会社 | Digital broadcast recording and playback method and apparatus |
US7457414B1 (en) * | 2000-07-21 | 2008-11-25 | The Directv Group, Inc. | Super encrypted storage and retrieval of media programs with smartcard generated keys |
-
2000
- 2000-04-14 US US09/549,988 patent/US6937814B1/en not_active Expired - Lifetime
-
2001
- 2001-04-13 WO PCT/US2001/012222 patent/WO2001080237A2/en active Application Filing
- 2001-04-13 AU AU2001253504A patent/AU2001253504A1/en not_active Abandoned
- 2001-04-13 GB GB0226072A patent/GB2377811A/en not_active Withdrawn
-
2005
- 2005-07-05 US US11/175,622 patent/US7925137B2/en active Active
-
2011
- 2011-03-07 US US13/042,180 patent/US20110150418A1/en not_active Abandoned
-
2013
- 2013-12-24 US US14/140,269 patent/US20140105569A1/en not_active Abandoned
- 2013-12-24 US US14/140,266 patent/US10141028B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07249271A (en) * | 1994-03-10 | 1995-09-26 | Intec:Kk | Test method for cd-rom record |
WO1999033265A1 (en) * | 1997-12-23 | 1999-07-01 | Intel Corporation | Method of time shifting to simultaneously record and play a data stream |
WO2001035405A1 (en) * | 1999-11-10 | 2001-05-17 | Thomson Licensing S.A. | Buffer optimization for simultaneous encoding-decoding and pause-catch-up for real-time dvd recorder |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 01, 31 January 1996 (1996-01-31) & JP 07 249271 A (INTEC:KK;OTHERS: 01), 26 September 1995 (1995-09-26) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10141028B2 (en) | 2000-04-14 | 2018-11-27 | Intel Corporation | System and method for play while recording processing |
EP1248257A2 (en) * | 2001-03-13 | 2002-10-09 | Pioneer Corporation | Apparatus and method for information record and playback, and program record medium recording information record and playback procedure program |
EP1248257A3 (en) * | 2001-03-13 | 2004-03-10 | Pioneer Corporation | Apparatus and method for information record and playback, and program record medium recording information record and playback procedure program |
GB2391687A (en) * | 2002-08-09 | 2004-02-11 | Tecton Ltd | Digital video recorder with simultaneous record and playback capability |
WO2004044910A1 (en) * | 2002-11-14 | 2004-05-27 | Koninklijke Philips Electronics N.V. | Secure local copy protection |
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US10141028B2 (en) | 2018-11-27 |
US6937814B1 (en) | 2005-08-30 |
AU2001253504A1 (en) | 2001-10-30 |
US20140104995A1 (en) | 2014-04-17 |
WO2001080237A3 (en) | 2002-03-21 |
GB0226072D0 (en) | 2002-12-18 |
US7925137B2 (en) | 2011-04-12 |
US20110150418A1 (en) | 2011-06-23 |
GB2377811A (en) | 2003-01-22 |
US20050244134A1 (en) | 2005-11-03 |
US20140105569A1 (en) | 2014-04-17 |
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