WO1997008695A1 - Appareil d'enregistrement de donnees, procede et appareil de reproduction de donnees - Google Patents

Appareil d'enregistrement de donnees, procede et appareil de reproduction de donnees Download PDF

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Publication number
WO1997008695A1
WO1997008695A1 PCT/JP1996/002344 JP9602344W WO9708695A1 WO 1997008695 A1 WO1997008695 A1 WO 1997008695A1 JP 9602344 W JP9602344 W JP 9602344W WO 9708695 A1 WO9708695 A1 WO 9708695A1
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WO
WIPO (PCT)
Prior art keywords
data
error correction
recording
sector
correction code
Prior art date
Application number
PCT/JP1996/002344
Other languages
English (en)
French (fr)
Inventor
Yoichiro Sako
Katsumi Toyama
Original Assignee
Sony Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corporation filed Critical Sony Corporation
Priority to KR1019970702828A priority Critical patent/KR100273080B1/ko
Priority to EP96927873A priority patent/EP0807930A4/en
Priority to JP51010497A priority patent/JP3735865B2/ja
Priority to US08/817,781 priority patent/US6226247B1/en
Publication of WO1997008695A1 publication Critical patent/WO1997008695A1/ja

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Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, 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
    • G11B19/02Control of operating function, e.g. switching from recording to reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/12Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1251Formatting, e.g. arrangement of data block or words on the record carriers on discs for continuous data, e.g. digitised analog information signals, pulse code modulated [PCM] data
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/18Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1833Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28Indexing; 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
    • G11B27/30Indexing; 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 the same track as the main recording
    • G11B27/3027Indexing; 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 the same track as the main recording used signal is digitally coded
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28Indexing; 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
    • G11B27/30Indexing; 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 the same track as the main recording
    • G11B27/3027Indexing; 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 the same track as the main recording used signal is digitally coded
    • G11B27/3063Subcodes
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/12Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/21Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/213Read-only discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/21Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215Recordable discs
    • G11B2220/216Rewritable discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/21Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215Recordable discs
    • G11B2220/218Write-once discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2525Magneto-optical [MO] discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2525Magneto-optical [MO] discs
    • G11B2220/2529Mini-discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2545CDs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2545CDs
    • G11B2220/255CD-I, i.e. CD-interactive
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2562DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs

Definitions

  • the present invention relates to a data recording apparatus and method for recording data read from a CD-ROM on another data recording medium and reproducing the data from the data recording medium, and a data reproducing apparatus. . d dagger
  • Optical disk drives have attracted attention as external storage devices for computers because of their large capacity and high-speed access. They are already one of CD-ROM (or CD-I (CD Interactive)) drives and MO (eraseable disks). The adoption of magneto-optical disk drives is expanding rapidly. In addition to these, a 2.5-inch MD (mini-disc; erasable disc) has been proposed. In addition, DVD (digital video disk) is being developed as a video storage medium.
  • a DVD is a read-only disk with the same diameter as a CD, or a recordable / reproducible optical disk such as a MO disk or a phase-change disk, and is capable of reproducing or recording / reproducing MPEG-compressed video information. It is a disk.
  • the recording density has been further improved by improving the processing of digital modulation and error correction coding with the progress of shorter laser light wavelengths and the increase in NA of the objective lens, and even in the case of single-layer discs.
  • the data storage capacity is enormous, about 3.7 Gbytes.
  • CDs and MDs were initially developed as digital audio discs and later used as external storage media for convenience stores, larger-capacity DVDs were also used as external storage media for computers. This is expected.
  • the reliability of the data (the magnitude of the error rate) is specific to the recording medium, and no consideration has been given to selecting a recording process in consideration of this.
  • the data to be recorded may have a plurality of formats (referred to as modes), so it is preferable to take an error countermeasure taking into account the formats. No.
  • an object of the present invention is to provide a data recording device and a method thereof, and a data reproducing device capable of changing a recording process according to data reliability and the like.
  • the present invention provides a data recording device for recording digital data on a data recording medium
  • Input means for receiving data to which the first error correction code is added and instruction information
  • Error correction using the first error correction code is selectively performed on input data, and data consisting of sectors having a predetermined size is Sectoring means for converting to
  • Coding means for adding a second error correction code for performing error correction to the sectorized data to the data output from the sectorization means;
  • a recording means for recording the modulated data on the data recording medium, and an instruction information are input, and a first error correction code is input to the data from the input means based on the instruction information.
  • a means for controlling the sectoring means so as to selectively add data.
  • the present invention also provides a data recording device for recording digital data on a data recording medium,
  • Input means for receiving data and instruction information from outside
  • a first error correction code for performing error correction on the input data is selectively added to the data, and the data is converted into a data consisting of one of a plurality of types of sectors having different sizes.
  • Coding means for adding a second error correction code for performing error correction to the sectorized data to the data output from the sectoring means;
  • the present invention is a data reproducing apparatus for reproducing data from a data recording medium in which predetermined data is converted into data having a plurality of types of sector structures based on instruction information and recorded,
  • Demodulation means for performing digital demodulation on the reproduced data and correction means for performing error correction on the demodulated data using a first error correction code included in the data.
  • Means for controlling an output means to decompose one of a plurality of types of sector-structured data into data having a predetermined size based on the detected identification information. is there.
  • the present invention provides a data recording method for recording digital data on a data recording medium
  • the first error correction code is selectively input to the input means based on the instruction information.
  • the present invention described above receives, for example, CD-ROM data encoded by a CD-ROM error correction code, and generates an error based on required information considering the required reliability, importance, recording capacity, or mode.
  • a process of decoding one correction code and dividing it into sectors of 2 Kbytes and recording the data, and a process of saving the format of CD-ROM data and dividing the sector into sectors are selected.
  • the data recorded in this manner is reproduced from the recording medium, subjected to sector decomposition processing corresponding to the recording time, and output as CD-ROM data
  • Receives 2K byte sector data consisting of an integer multiple of 5 12 bytes, for example, 2,048 bytes of user data, and considers the reliability, importance, recording capacity, or mode of the received data, and
  • the process of sectorizing and recording in 2 K byte sectors and the process of encoding as CD-OM data and sectorizing the encoded data are selected based on the instruction information.
  • the data recorded in this way is reproduced from the recording medium, subjected to sector decomposition processing corresponding to the time of recording, and output as 2 Kbytes of data.
  • FIG. 1 is a block diagram of an embodiment of a recording / reproducing circuit according to the present invention.
  • FIG. 2 is a block diagram of another embodiment of the recording / reproducing circuit according to the present invention.
  • FIG. 3 is a schematic diagram for explaining the data structure of a conventional CD.
  • Fig. 4 is a schematic diagram for explaining the data structure of a conventional CD-ROM. It is.
  • FIG. 5 is a schematic diagram for explaining a conventional CD-ROM mode 2 data structure.
  • FIG. 6 is a schematic diagram showing an example of a data structure of a 2K byte sector in one embodiment of the present invention.
  • FIG. 7 is a schematic diagram showing an example of a data structure of a CD-ROM sector in one embodiment of the present invention.
  • FIG. 8 is a schematic diagram showing another example of the data structure of the CD-ROM sector in one embodiment of the present invention.
  • FIG. 9 is a schematic diagram used for explaining an error correction code in a block unit in one embodiment of the present invention.
  • FIG. 10 is a schematic diagram used for explaining a block configuration in one embodiment of the present invention.
  • FIG. 11 is a block diagram of an example of an encoder of an error correction code for recording data in one embodiment of the present invention.
  • FIG. 12 is a block diagram of an example of an error correction code decoder for recording data in one embodiment of the present invention.
  • FIG. 13 is a schematic diagram showing a configuration of modulated recording data in one embodiment of the present invention.
  • FIG. 1 shows an optical disk recording / reproducing system according to the present invention.
  • the CD-ROM data supplied via the interface 1 is recorded on the optical disk 2 and the data read from the optical disk 2 is output via the interface 1.
  • CD-ROM drive 15 and host computer 16 are connected to interface 1 Have been.
  • the CD-ROM data is supplied directly from the drive 15 to the interface 1 or the output data of the drive 15 is taken into the computer 16 once, and the data is transferred from the computer 16 to the interface 16. Supplied to Face 1.
  • Specific examples of data include compressed video data, compressed audio data, data for a computer, and the like.
  • the recordable type of DVD (magneto-optical or phase-change type) that is currently proposed is an example of the optical disk 2.
  • CD-ROM data to which the present invention can be applied will be described.
  • CD-ROM evolved from the well-known CD.
  • a CD contains a 1-byte subcode, 24 bytes of data, and 4 bytes of data each in a transmission frame (sometimes called an EFM frame or C1 frame).
  • C1 parity and C2 parity are arranged.
  • each byte is converted into a 14-channel bit codeword by EFM modulation and recorded via a combination bit (3 channel bits).
  • a 1 IT T is the cycle of channel bits
  • 2 channel bits followed by a sync of 24 channel bits (meaning synchronization signal) Is added.
  • the subcode is configured to be one unit with a cycle of 98 transmission frames. Therefore, in CD, in 98 transmission frames,
  • the data structure of CD-ROM is specified based on the CD transmission format. That is, the CD-ROM uses data of 2,352 bytes, which are data included in the 98 frames of the subcode cycle.
  • a sync (12 bytes) and a header (4 bytes) indicating the sector delimiter are added in common to these modes.
  • mode 0 data other than these syncs and headers are all "0" and are used as dummy data.
  • FIG. 4 shows the data structure of one sector in mode 1 and mode 2.
  • the header consists of three bytes of address information and one byte of mode information, similar to the subcode of a CD.
  • Mode 1 is suitable for recording data that requires high reliability, such as character codes and computer data.
  • Mode 2 is a mode in which 2,288 bytes of auxiliary data are not added, and thus, 2,336 bytes of user data can be recorded.
  • Mode 2 is suitable for recording evening data where errors such as video data and audio data can be interpolated.
  • Form 1 and Form 2 as shown in Fig. 5 are specified as variants of Mode 2 of CD-ROM.
  • CD-I, CD-ROMXA, Video CD, etc. have data structures of Form 1 and Form 2.
  • a 12-byte sync and 4-byte header are added as in the case of CD-ROM, and the mode information in the header is Mode 2.
  • an 8-byte subheader is added.
  • the subheader consists of a 2-byte file number, a channel number, a submode, and a data eve.
  • Form 1 a 4-byte error detection code, a P-parity of 172 bytes, and a Q parity of 104 bytes, are added.
  • CD-ROM There is no space in mode 1 of 02344, and the user data area is 2,048 bytes.
  • Form 2 has a reserved area (4 bytes), and the user data area is 2,324 bytes.
  • ROM data is received by interface 1.
  • CD-ROM sector when recording CD-ROM data on the optical disc 2, two types of sector structures can be selected.
  • One is the format of CD-ROM data, especially the sector structure (referred to as CD-ROM sector) that stores error correction codes (P, R and Q parity), and others.
  • CD-ROM sector the sector structure that stores error correction codes (P, R and Q parity), and others.
  • P, R and Q parity error correction codes
  • the CD-ROM data is sectorized into CD-ROM sectors. For example, if the CD-ROM data is data from computer software, the CD-ROM data is sectorized into CD-ROM sectors. On the other hand, when the reliability of the data is not so required or when the storage capacity is to be increased, the CD-ROM data is sectorized into 2 Kbyte sectors. In the case of image data or music data, interpolation can be performed after reproduction, so that the reliability of the data does not need to be so high.
  • a data sink (4 bytes) and a header (16 bytes) are added to the bytes of the user's data, and an error detection code EDC (4 (Byte). Therefore, the length of one sector is 2,072 bytes.
  • the sector having the data structure shown in FIG. 6A is called a 2K byte sector.
  • Figure 6B shows the header data in more detail. That is, two bytes of the error detection code (specifically, CRC) for the header, one byte of the management information CGMS for managing copy permission, a single-layer disc and a multi-layer disc are identified, and The header is composed of the number of layers included in the disc, one byte for each layer indicating the number of the layer on which data is recorded, four bytes for addresses, and eight bytes for auxiliary data. If necessary, a sector ID signal for identifying the sector structure (2 Kbyte sector or CDā€”: OM sector) is inserted during the auxiliary data transfer.
  • CRC error detection code
  • the CD-ROM data since the CD-ROM data has a length of 2,352 bytes as one sector, as shown in FIG. Add data sync (4 bytes) and header (12 bytes). Therefore, the length of one sector is 2,368 bytes.
  • the header consists of CRC (two bytes), copy management information CGMS, layers, addresses, and auxiliary data (four bytes), as shown enlarged in Fig. 7B.
  • the header in FIG. 7B has the same information as the header in FIG. 6B, except that the length of the auxiliary data is shorter.
  • a sector including one sector of CD-ROM data is called a CD-ROM sector.
  • a format in which a 4-byte error detection code (EDC) is added as shown in Fig. 8 is also possible.
  • the format of the 2K byte sector and CD-ROM sector described above is an example, and various values are possible for the sector size, the data sink, and the number of bits of the header, and a configuration without adding a data sink is also possible.
  • data of 128 bytes or an integral multiple of 512 bytes may be included in a sector.
  • the length of one sector is different between the 2K byte sector and the CD-ROM sector, and is not in an integer ratio relationship.
  • these sector sizes are A and B
  • nA and mB (n and m are integers and n ā‡ m, n> m) are satisfied.
  • the error correction capability can be increased.
  • the first error correction code (referred to as C1 code) is encoded for 162 bytes in the vertical direction (each column) to generate an 8-byte C1 parity.
  • a second error correction code (referred to as C2 code) is applied to 156 bytes in the oblique direction, and 14 bytes of C2 noise is added.
  • the encoding is a convolutional double encoding.
  • error correction code a product code, a block-completed double coding, an LDC (Long Distance Code), or the like may be adopted, and coding using a single error detection code may be performed. Is also possible.
  • FIG. 10A shows the processing for the 2,072 byte sector shown in FIG.
  • the digital data received by the interface 1 is supplied from the interface 1 to the CD-ROM sectoring circuit 4 and the CD-ROM decoder 5 via the switch circuit 3.
  • the sectoring circuit 4 is connected to one output terminal HR of the switch circuit 3, and the decoder 5 is connected to the other output terminal H C.
  • the decoded output of the CD-ROM decoder 5 is supplied to a 2K byte sectoring circuit 6.
  • These sectoring circuits 4 and 6 divide the received digitized data for each sector, add a sector sync and a header, and perform error detection encoding. That is, the sectoring circuit 4 A is converted into a CD-ROM sector structure having a size of 2,368 bytes as shown in A, and the sectoring circuit 6 converts the received data into a 2,072 byte size as shown in FIG. 6A. Convert to 2K byte sector structure.
  • the CD-ROM decoder 5 corrects one sector of CD-ROM data for errors and outputs 2 Kbytes of user data after error correction.
  • the sectoring circuit 4 converts one sector of CD-ROM data into a CD-ROM sector as it is without performing error correction, or, as in the case of the CD-ROM decoder 5, temporarily converts the CD-ROM It decodes the CD-ROM data received by the error correction code described above, and converts the data into a CD-ROM data structure again. If it is desired to increase the reliability of the data, a process of decoding and encoding the data of the CD-ROM is preferable. The details are disclosed in the specification of US Reissue Patent No. 33,462 (Japanese Patent Publication No. 7-101543).
  • the switch circuit 3 is controlled by a control signal output from a controller 13 connected to the interface 1.
  • the interface 1 receives an instruction command supplied from the host computer 16 together with the CD-ROM data.
  • Another method for generating the instruction information is a user operation on the keyboard 14.
  • the instruction information may be generated according to the presence or absence of the received error. That is, the received data is once supplied to the CD-ROM decoder, and according to the error correction result in the CD-ROM decoder, if there is an error, the CD-ROM sector is formed. Alternatively, 2K byte sectorization may be performed.
  • a control signal for controlling the switch circuit 3 is supplied to the sectoring circuits 4 and 6, and the control signal is inserted into the header of each sector, for example, as a part of auxiliary data. Is done.
  • a selected one of the output data of the sectoring circuits 4 and 6 is supplied to the blocking circuit 7.
  • the blocking circuit 7 starts from 7 sectors (in the case of CD-ROM section) or 8 sectors (in the case of 2K bit sector) according to the sector size of the input data.
  • a block (16, 576 bytes) is formed, and error correction codes are encoded for each block as shown in FIG.
  • the controller 13 sends a signal for indicating the sector size to the blocking circuit 7. This error correction code is different from the error correction code originally applied to CD-ROM data.
  • Data from the blocking circuit 7 is supplied to the recording processing circuit 8.
  • the recording processing circuit 8 performs processing such as error correction coding, digital modulation, and addition of a synchronization signal (frame sync).
  • a signal indicating the sector structure is supplied from the controller 3 to the recording processing circuit 8 so that the structure of the sector can be identified by the pattern of the added synchronization signal.
  • the recording data from the recording processing circuit 8 is supplied to the optical pickup 10 via the driver 9 and recorded on the optical disc 2. Recording is performed by magneto-optical recording or phase change.
  • the optical disc 2 is rotated by CLV (constant linear velocity) or CAV (constant angular velocity) by the spindle motor 11.
  • the minimum unit of data recorded / reproduced by the optical pickup 10 is one sector described above.
  • the reproduced data read by the optical pickup 10 is supplied to a detector circuit 21 including an RF amplifier, a PLL circuit for clock extraction, and the like.
  • the output of the detector circuit 21 is supplied to the reproduction processing circuit 22.
  • the output of the optical pickup 10 performs focus servo, tracking servo, feed operation (seek) control of the optical pickup 10, and controls a laser controller for recording.
  • the reproduction processing circuit 22 includes a sync separation circuit, a digital demodulation circuit, an error correction circuit, and the like.
  • the reproduction data from the detector circuit 21 is supplied to the sync separation circuit, and the frame sync is separated.
  • a clock signal synchronized with the reproduced data is generated from the separated frame sync.
  • the digital demodulation circuit performs the reverse process of the digital modulation circuit. Data with one symbol returned to one byte is generated from the demodulation circuit.
  • the output data of the digital demodulation circuit is supplied to an error correction circuit, and the error correction circuit corrects the reproduced data for errors.
  • a block decomposition circuit 23 is connected to the reproduction processing circuit 22.
  • the reproduction data is divided into blocks, and the error correction codes of the blocks are decoded.
  • the block disassembling circuit 23 performs a process opposite to the process of the recording side block creating circuit 7, and the sector disassembly data is output from the block disassembling circuit 23.
  • the output data of the block decomposition circuit 23 is distributed to its output terminals HR and HC by the switch circuit 24.
  • the output terminal H R is connected to a CD-ROM sector decomposition circuit 25, and the output terminal H C is connected to a 2 K byte sector decomposition circuit 26.
  • a CD-ROM encoder 27 is connected to the sector decomposition circuit 26. The output data of the CD-ROM sector decomposition circuit 25 or the output data of the CD-ROM encoder 27 is supplied to the interface 1.
  • a sync detection circuit 29 is connected in connection with the reproduction processing circuit 22.
  • the sync detection circuit 29 generates a sector discrimination signal corresponding to the separated sync pattern when the sector structure is identified by the sync pattern.o
  • This sector discrimination signal is supplied to the controller 13 and A signal for controlling the block disassembly circuit 23 and a signal for controlling the switch circuit 24 are generated from the controller 13. These control signals are sent together with the read command. It may be generated based on an instruction command supplied to the interface 1. Further, the controller 13 may generate the instruction information based on a user operation on the keyboard 14.
  • the CD-ROM sector decomposition circuit 25 separates and outputs 2,352 bytes of CD-ROM data from the CD-ROM sector shown in FIG. 7A. If high reliability is required, the CD-ROM data is separated, error correction is performed by a CD-ROM decoder, and CD-ROM data is formed by a CD-ROM encoder.
  • the 2K byte sector decomposition circuit 26 separates 2,048 bytes of data from the 2K byte sector shown in Fig. 6A.
  • the CD-ROM encoder 27 uses the 2,048-byte data from the sector decomposition circuit 26 as the user data and uses the CD-ROM data in mode 1 (see Fig. 4) or mode 2 form. Form 1 CD-ROM data (see Fig. 5). In this way, the playback data converted to the CD-ROM data is transferred to the host computer 16 through the interface 1.
  • FIG. 11 is a block diagram showing an error correction code encoding process performed by an error correction code encoder provided in the recording processing circuit 8.
  • This error correction code is similar to the cross-interleaved Reed-Solomon code (an example of convolutional double coding) used in CDs.
  • a 148-byte input symbol is supplied to the C1 encoder 41.
  • the output of the C1 encoder 41 (decoder symbol 148 bytes and 8-byte C1 parity P) is supplied to the C2 encoder 43 via the delay circuit group 42 for the interleaving.
  • the C2 encoder 43 [170, 156, 15] Reed '
  • a 14-byte C2 parity Q is formed.
  • the C1 encoder 41 not only the data but also the C2 parity Q is C1 encoded, so the C2 parity Q is converted from the C2 encoder 43 via the delay circuit group 42a to the C1 encoder Q1. 4 Feedback is sent to 1. Therefore, C 1 encoder 41 encodes [170, 162, 9] Reed'Solomon code o
  • the 170 bytes (consisting of 148 bytes of data, 8 bytes of C1 parity, and 14 bytes of C2 noise) from 1 to 44 are array changing circuits including delay circuits. As an output symbol. This output symbol is supplied to the digital modulation circuit.
  • the interleave length of this convolutional double coding (also referred to as the interleave constraint length or interleave depth) is 170 frames (corresponding to the maximum delay amount due to the delay circuit). This is the length of the code sequence, which means two transmission frames.
  • FIG. 12 is a block diagram showing the processing of the error correction code decoder provided in the reproduction processing circuit 22.
  • the input symbol (170 bytes) from the digital demodulation circuit is supplied to the C 1 decoder 52 via the arrangement changing circuit 51.
  • the array changing circuit 51 performs a process reverse to that of the array changing circuit 44 of the encoder.
  • the C1 decoder 52 decodes the [170, 162, 9] Reed-Solomon code.
  • the output of the C1 decoder 52 is supplied to the C2 decoder 54 via the delay circuit group 53.
  • the C2 decoder 54 decodes the [170, 156, 15] Reed-Solomon code. Further, the decoded output of the C2 decoder 54 is supplied to the C1 decoder 56 via a delay circuit group 55 for day-in / leaving. In this way, the C1 decoding, C2 decoding and C1 decoding process Then, the 148-byte error-corrected output symbol is extracted.
  • the recording data output from the recording processing circuit 8 will be described with reference to FIG. As described above, a 2K byte sector (2,072 bytes) is divided into 148 data units (see FIG. 10A).
  • a sector sync S3 or C1 sync S2 of 32 channel bits is added to the first half of the modulation data symbol.
  • An additional sync S1 of 32 channel bits is added to the second half modulation data symbol, and one transmission frame is similarly formed.
  • a sector sync S3 is added to the first transmission frame of the 28 transmission frames instead of the C1 sync S2.
  • Fig. 13B shows the recorded data corresponding to one CD-ROM sector.
  • a sector sync S4 is added to the head of the transmission frame instead of the C1 sync S2.
  • one way to add block sync on a block basis Is shown in Figure 13C.
  • one block is composed of eight 2K byte sectors or seven CD-ROM sectors. Therefore, the sync addition circuit adds a block sync S5 instead of the sector sync S3 or S4 for the first transmission frame of the first sector in one block.
  • a sector sync S3 or S4 is added to the first transmission frame of another sector.
  • the block sync S5 may be added independently of the sector sync.
  • the sync detection circuit 29 (first The controller 13 can identify the sector structure from the output of (see the figure). It is also possible to identify the sector structure in units of blocks by using the bit pattern of the block sync S5 instead of the sector sync.
  • the above-described embodiment of the present invention receives the CD-ROM data, and when high reliability is required, divides this data into a CD-HOM sector and records the data of the CD-ROM sector on the optical disk 2. Then, playback from the optical disc 2 is performed.
  • the received CD-ROM data is sectorized as 2 Kbyte sectors, and recording / reproduction is performed. In either case, the data input / output from interface 1 is in CD-ROM data format. In this way, two types of recording / reproduction can be performed according to the reliability.
  • FIG. 2 shows the configuration of a recording / reproducing system according to another embodiment of the present invention.
  • the configuration from the block system 7 of the recording system to the optical pickup 10 and the configuration from the optical pickup 10 of the reproduction system to the block decomposition circuit 23 are the same as those of the above-described embodiment. Therefore, their explanation is omitted. You.
  • the interface 1 is supplied with digitized data divided every 2 Kbytes. This input data is distributed to the terminals HR and HC by the switch circuit 3.
  • a CD-ROM encoder 12 is connected to the terminal HR selected when high reliability is emphasized, and a CD-ROM sectoring circuit 4 is connected to the encoder 12.
  • a 2 K byte sectoring circuit 6 is connected to the terminal HC selected when increasing the recording capacity.
  • the CD-ROM encoder 12 generates CD-ROM data in the mode 1 or mode 2 'form 1 format in which 2 Kbytes of input data are used as user data.
  • the output of the CD-ROM encoder 12 is supplied to the CD-ROM sectoring circuit 4 to form a CD-ROM sector shown in FIG. 7A.
  • the 2K byte sectoring circuit 6 forms the 2K byte sector shown in FIG. 6A.
  • the data converted into the structure of the CD-ROM sector or the 2 K byte sector is supplied to the block forming circuit 7.
  • the switch circuit 24 connected to the block disassembly circuit 23 is controlled by a control signal from the controller 13 similarly to the switch circuit 3 on the recording side.
  • a CD-ROM decoder 28 is connected to a terminal HR of the switch circuit 24 via a CD-ROM sector decomposition circuit 25.
  • a 2 K byte sector decomposition circuit 26 is connected to the terminal H C of the switch circuit 24.
  • a CD-ROM encoder 12 and a CD-ROM sectorization circuit 4 are provided, and a CD-ROM sector decomposition circuit 25 and a CD-ROM decoder 28 are provided.
  • a 2K byte sector disassembly circuit 26 is provided in correspondence with the 2K byte sectorization circuit 6 on the recording side.
  • the other embodiment of the present invention described above receives 2 Kbytes of data.
  • this data is encoded into CD-ROM data, then sectorized as a CD-ROM sector, and the data of the CD-ROM sector is recorded on the optical disk 2, and Play from optical disk 2.
  • the received 2 Kbyte data is sectorized as 2 Kbyte sectors, and recording / reproduction is performed.
  • the data input / output from interface 1 is data in units of 2 Kbytes. In this way, two types of recording / reproduction can be performed according to the reliability.
  • the optical disk has been described as an example, but the present invention can be similarly applied to a hard disk, a flexible disk (FD), a semiconductor memory, and a tape-shaped recording medium.
  • the present invention relates to a recording process for recording CD-ROM data from a CD-ROM drive and data in units of 2 Kbytes from a hard disk drive in accordance with required reliability, required recording capacity, and the like. Can be switched. Therefore, it is possible to have flexibility when recording digital data.
  • the present invention can enable either 2K-byte data or CD-ROM data as input / output data.

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Description

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恕悉恫态 1ć‚»ć‚Æć‚æ恫 2 K惐悤 ćƒˆć®ćƒ‡ćƒ¼ć‚æćŒå«ć¾ć‚Œć‚‹ć‚‚ć®ćØ恗恟恌态 1 28惐悤 惈恂悋恄ćÆ 512惐悤 ćƒˆć®ę•“ę•°å€ć®ćƒ‡ćƒ¼ć‚æćŒć‚»ć‚Æć‚æć«å«ć¾ć‚Œć‚‹ ć‚ˆć†ć«ć—ć¦ć‚‚č‰Æ恄怂 ä¾‹ćˆć° 5 12 x 2 = 1 , 024 (= 1 K) 惐悤 惈恮 ćƒ‡ćƒ¼ć‚æć‚’å«ć‚€ć‚»ć‚Æć‚æę§‹é€ ć‚’č¦å®šć—ć€ CDā€” ROMćƒ‡ćƒ¼ć‚æć®ćƒ¦ćƒ¼ć‚¶ćƒ‡ćƒ¼ć‚æ 悒äŗŒć¤ć® 1 Kć‚»ć‚Æć‚æć«åˆ†å‰²ć—ć¦čØ˜éŒ²ć—ć¦ć‚‚č‰Æ恄怂
äøŠčæ°ć—ćŸć‚ˆć†ć«ć€ 2 K惐悤 ćƒˆć‚»ć‚Æć‚æćŠć‚ˆć³ CDā€” ROMć‚»ć‚Æć‚æ恮間恧 态 1ć‚»ć‚Æć‚æć®é•·ć•ćŒē•°ćŖ悊态 ē„¶ć‚‚态 ę•“ę•°ęÆ”ć®é–¢äæ‚恫ćÆćŖ恄怂 恓恮ē™ŗę˜Žć® ā€”å®Ÿę–½ä¾‹ć§ćÆ态 ć“ć‚Œć‚‰ć®ć‚»ć‚Æć‚æ悵悤ć‚ŗ悒 AćŠć‚ˆć³ BćØ恙悋ćØćć«ć€ nA ćŠć‚ˆć³ mB (n, mćÆ态 ꕓꕰ恧态 nā‰ m态 n怉m) ć®é–¢äæ‚ć‚’å…±ć«ęŗ€č¶³ć™ 悋悵悤ć‚ŗć®ćƒ–ćƒ­ćƒƒć‚Æć‚’č¦å®šć™ć‚‹ć€‚ ćć—ć¦ć€ 惖惭惃ć‚Æć®å˜ä½ć§ćƒ‡ćƒ¼ć‚æ悒čؘ 録 /再ē”Ÿ ļ¼ˆć™ćŖć‚ć”ć€ ć‚¢ć‚Æć‚»ć‚¹ļ¼‰ ć™ć‚‹ć‚ˆć†ć«ćŖ恕悌悋怂
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Claims

請걂恮ēƄ囲
1 . ćƒ‡ćƒ¼ć‚æčؘ録åŖ’ä½“ć«ćƒ‡ć‚£ć‚øć‚æćƒ«ćƒ‡äø€å¤•ć‚’čØ˜éŒ²ć™ć‚‹ćŸć‚ć®ćƒ‡ćƒ¼ć‚æčؘ録 č£…ē½®ć§ć‚ć£ć¦ć€
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2 . 請걂項 1ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²č£…ē½®ć«ćŠć„恦态 äøŠčØ˜ęŒ‡ē¤ŗęƒ…å ±ćÆćƒ›ć‚¹ ćƒˆć‚³ćƒ³ ćƒ”ćƒ„ćƒ¼å¤•ć‹ć‚‰é€å‡ŗ恕悌悋ꌇē¤ŗć‚³ćƒžćƒ³ćƒ‰ć§ć‚ć‚‹ć“ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æčؘ
3 . 請걂項 1ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²č£…ē½®ć«ćŠć„恦态 äøŠčØ˜å…„åŠ›ę‰‹ę®µćÆ态 äøŠčØ˜ęŒ‡ē¤ŗ ęƒ…å ±ć‚’äøŠčØ˜åˆ¶å¾”ę‰‹ę®µć«å…„åŠ›ć™ć‚‹ćŸć‚ć«ę“ä½œć•ć‚Œć‚‹ę“ä½œę‰‹ę®µć‚’å«ć‚€ć“ćØ悒 ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æčØ˜éŒ²č£…ē½®ć€‚
4 . 請걂項 1ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²č£…ē½®ć«ćŠć„恦态 äøŠčØ˜å…„åŠ›ę‰‹ę®µć«å…„åŠ›ć•ć‚Œć‚‹ ćƒ‡ćƒ¼ć‚æćÆ态 C Dā€” R O Mćƒ•ć‚©äø€ćƒžćƒ„ ćƒˆåŒ–ć•ć‚ŒćŸćƒ‡äø€å¤•ć§ć‚悋恓ćØ悒ē‰¹å¾“ ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æčØ˜éŒ²č£…ē½®ć€‚
5 . 請걂項 1ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²č£…ē½®ć«ćŠć„恦态 äøŠčØ˜ć‚»ć‚Æć‚æåŒ–ę‰‹ę®µćÆ态 兄力 恕悌恟äøŠčØ˜ćƒ‡ćƒ¼ć‚æć‚’å°‘ćŖ恏 ćØ悂 1 2 8惐悤 åœć®ę•“ę•°å€ć®ć‚µć‚¤ć‚ŗ悒꜉恙悋 ćƒ‡ćƒ¼ć‚æć‚’å«ć‚€ć‚»ć‚Æć‚æćƒ‡ćƒ¼ć‚æć«å¤‰ę›ć™ć‚‹ę‰‹ę®µć‚’å‚™ćˆć‚‹ć“ćØ悒ē‰¹å¾“ćØ恙悋惇 äø€å¤•čØ˜éŒ²č£…ē½®ć€‚
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2 8 . 請걂項 2 4ć®ćƒ‡ćƒ¼ć‚æ再ē”Ÿč£…ē½®ć«ćŠć„恦态 äøŠčØ˜ęŒ‡ē¤ŗ倩報ćÆ态 ćƒ‡ćƒ¼ å¤•ć®äæ”é ¼åŗ¦ć€ ćƒ‡ćƒ¼ć‚æć®é‡č¦åŗ¦ć€ čØ˜éŒ²å®¹é‡ć€ ć¾ćŸćÆćƒ‡ćƒ¼ć‚æćƒ•ć‚©ćƒ¼ćƒžćƒƒ 惈恮 ēØ®é”žć‚’ęŒ‡ē¤ŗć™ć‚‹ćŸć‚ć®ęƒ…å ±ć‚’å«ć‚€ć“ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æ再ē”Ÿč£…ē½®ć€‚ 2 9 . 請걂項 2 4ć®ćƒ‡ćƒ¼ć‚æ再ē”Ÿč£…ē½®ć«ćŠć„恦态 äøŠčؘå‡ŗåŠ›ę‰‹ę®µćÆ态 äøŠčؘ čØ‚ę­£ę‰‹ę®µć‹ć‚‰ć®ćƒ‡ćƒ¼ć‚æ恫åÆ¾ć—ć¦äøŠčؘē¬¬ 1恮ć‚Ø惩äø€čØ‚ę­£ē¬¦å·ćØćÆē•°ćŖ悋ē¬¬ 2恮ć‚Øćƒ©ćƒ¼čØ‚ę­£ē¬¦å·ćŒä»˜åŠ ć•ć‚Œć¦ć„ć‚‹å “åˆć«ć€ 恓恮ē¬¬ 2恮ć‚Øćƒ©ćƒ¼čØ‚ę­£ē¬¦ å·ć‚’ē”Ø恄恦ꛓ恫ć‚Øćƒ©ćƒ¼čØ‚ę­£ć‚’č”Œć†ć“ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æ再ē”Ÿč£…ē½®ć€‚
3 0 . 請걂項 2 9ć®ćƒ‡ćƒ¼ć‚æ再ē”Ÿč£…ē½®ć«ćŠć„恦态 äøŠčØ˜ę¤œå‡ŗę‰‹ę®µć«ć‚ˆć£ć¦ ꤜå‡ŗć•ć‚Œć‚‹č­˜åˆ„ęƒ…å ±ćÆ态 äøŠčØ˜ćƒ‡ćƒ¼ć‚æčؘ録åŖ’ä½“ć«čØ˜éŒ²ć•ć‚ŒćŸćƒ‡ćƒ¼ć‚æ恮悻ć‚Æ å¤•ć‚µć‚¤ć‚ŗ态 ć¾ćŸćÆäøŠčؘē¬¬ 2恮ć‚Øćƒ©ćƒ¼čØ‚ę­£ē¬¦å·ćŒä»˜åŠ ć•ć‚Œć¦ć„ć‚‹ć‹å¦ć‹ć‚’ č”Øć™ęƒ…å ±ć§ć‚ć‚‹ć“ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æ再ē”Ÿč£…ē½®ć€‚
3 1 . 請걂項 2 4ć®ćƒ‡äø€å¤•å†ē”Ÿč£…ē½®ć«ćŠć„恦态 äøŠčØ˜ę¤œå‡ŗꉋꮵćÆ态 兄力 ć•ć‚ŒćŸćƒ‡ćƒ¼ć‚æ悈悊态 äøŠčؘ復čŖæę‰‹ę®µć®ćŸć‚ć®åŒęœŸäæ”å·ć‚’äøŠčØ˜ęŒ‡ē¤ŗęƒ…å ±ć«åƾ åæœć—ćŸč­˜åˆ„ęƒ…å ±ćØć—ć¦ę¤œå‡ŗ恙悋恓ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æ再ē”Ÿč£…ē½®ć€‚
3 2 . ćƒ‡ćƒ¼ć‚æčؘ録åŖ’ä½“ć«ćƒ‡ć‚£ć‚øå¤•ćƒ«ćƒ‡ćƒ¼ć‚æ悒čØ˜éŒ²ć™ć‚‹ćŸć‚ć®ćƒ‡äø€å¤•čؘ éŒ²ę–¹ę³•ć§ć‚ć£ć¦ć€
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変čŖæć•ć‚ŒćŸćƒ‡ćƒ¼ć‚æ悒äøŠčØ˜ćƒ‡ćƒ¼ć‚æčؘ録åŖ’ä½“ć«čØ˜éŒ²ć™ć‚‹ćŸć‚ć®ć‚¹ćƒ†ćƒ„ćƒ—ćØ äøŠčØ˜ęŒ‡ē¤ŗęƒ…å ±ćŒå…„åŠ›ć•ć‚Œć‚‹ćØćØ悂恫态 ć“ć®ęŒ‡ē¤ŗęƒ…å ±ć«åŸŗ恄恄恦äøŠčؘ兄 åŠ›ę‰‹ę®µć‹ć‚‰ć®ćƒ‡ćƒ¼ć‚æ恫åÆ¾ć—ć¦äøŠčؘē¬¬ 1恮ć‚Øćƒ©ćƒ¼čØ‚ę­£ē¬¦å·ć‚’éøꊞēš„ć«ä»˜åŠ  ć•ć›ć‚‹ć‚¹ćƒ†ćƒƒćƒ—ćØć‚’å‚™ćˆćŸćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć€‚
3 3 . 請걂項 3 2ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć«ćŠć„ć¦ć€ äøŠčØ˜ęŒ‡ē¤ŗęƒ…å ±ćÆćƒ›ć‚¹ 惈 ć‚³ćƒ³ćƒ”ćƒ„ćƒ¼ć‚æ恋悉送å‡ŗ恕悌悋ꌇē¤ŗć‚³ćƒžćƒ³ćƒ‰ć§ć‚ć‚‹ć“ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ 夕čØ˜éŒ²ę–¹ę³•ć€‚
3 4 . 請걂項 3 2ć®ćƒ‡äø€å¤•čØ˜éŒ²ę–¹ę³•ć«ćŠć„ć¦ć€ 外éƒØć‹ć‚‰å…„åŠ›ć•ć‚Œć‚‹äøŠ čØ˜ćƒ‡ćƒ¼ć‚æćÆ态 少ćŖ恏 ćØ悂 1 2 8惐悤 ćƒˆć®ę•“ę•°å€ć®ćƒ‡ćƒ¼ć‚æ悵悤ć‚ŗ悒꜉恙悋 ćƒ‡ćƒ¼ć‚æ恧恂悋恓ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć€‚
3 5 . 請걂項 3 2ć®ćƒ‡äø€å¤•čØ˜éŒ²ę–¹ę³•ć«ćŠć„ć¦ć€ äøŠčØ˜å¤‰ę›ć‚¹ćƒ†ćƒƒćƒ—ćÆ态 å…„åŠ›ć•ć‚ŒćŸäøŠčØ˜ćƒ‡ćƒ¼ć‚æć‚’å°‘ćŖ恏ćØ悂 1 2 8惐悤 ćƒˆć®ę•“ę•°å€ć®ć‚µć‚¤ć‚ŗ悒꜉ ć™ć‚‹ćƒ‡ćƒ¼ć‚æć‚’å«ć‚€ć‚»ć‚Æć‚æćƒ‡ćƒ¼ć‚æć«å¤‰ę›ć™ć‚‹ćŸć‚ć®ć‚¹ćƒ†ćƒ„ćƒ—ć‚’å«ć‚€ć“ćØ悒 ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć€‚
3 6 . 請걂項 3 5ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć«ćŠć„ć¦ć€ äøŠčØ˜å¤‰ę›ć‚¹ćƒ†ćƒƒćƒ—ćÆ态 å…„åŠ›ć•ć‚ŒćŸäøŠčØ˜ćƒ‡ćƒ¼ć‚æć‚’å°‘ćŖ恏ćØ悂 C Dā€” R O Mćƒ•ć‚©ćƒ¼ćƒžćƒ„ ćƒˆåŒ–ć•ć‚ŒćŸ ćƒ‡ćƒ¼ć‚æć‚’å«ć‚€ć‚»ć‚Æć‚æćƒ‡ćƒ¼ć‚æć«å¤‰ę›ć™ć‚‹ćŸć‚ć®ć‚¹ćƒ†ćƒ„ćƒ—ć‚’å«ć‚€ć“ćØ悒ē‰¹å¾“ ćØ恙悋惇äø€å¤•čØ˜éŒ²ę–¹ę³•ć€‚
3 7ļ¼Œ 請걂項 3 2ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć«ćŠć„ć¦ć€ äøŠčØ˜ęŒ‡ē¤ŗęƒ…å ±ćÆ态 ćƒ‡ćƒ¼ å¤•ć®äæ”é ¼åŗ¦ć€ ćƒ‡ćƒ¼ć‚æć®é‡č¦åŗ¦ć€ čØ˜éŒ²å®¹é‡ć€ ć¾ćŸćÆćƒ‡ćƒ¼ć‚æćƒ•ć‚©ćƒ¼ćƒžćƒƒ 惈恮 ēØ®é”žć‚’ęŒ‡ē¤ŗć™ć‚‹ćŸć‚ć®ęƒ…å ±ć‚’å«ć‚€ć“ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć€‚ 3 8 . 請걂項 3 2ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć«ćŠć„ć¦ć€ äøŠčØ˜å¤‰ę›ć‚¹ćƒ†ćƒƒćƒ—ćÆ态 å…„åŠ›ć•ć‚ŒćŸćƒ‡ćƒ¼ć‚æåŠć³äøŠčؘē¬¬ 1恮ć‚Øćƒ©ćƒ¼čØ‚ę­£ē¬¦å·ć‚’å«ć‚€ć‚»ć‚Æć‚æ态 ć¾ćŸćÆ ćƒ‡ćƒ¼ć‚æ恮ćæć‚’å«ć‚€ć‚»ć‚Æć‚æć®ä½•ć‚Œć‹ć«å¤‰ę›ć™ć‚‹ćŸć‚ć®ć‚¹ćƒ†ćƒ„ćƒ—ć‚’å«ć‚€ć“ćØ 悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć€‚
3 9 . 請걂項 3 2ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć«ćŠć„ć¦ć€ äøŠ ĪŖ å¤‰ę›ć‚¹ćƒ†ćƒƒćƒ—ćÆ态 äøŠčØ˜ęŒ‡ē¤ŗęƒ…å ±ć«åƾåæœć—ćŸäøŠčØ˜ć‚»ć‚Æć‚æć®č­˜åˆ„ęƒ…å ±ć‚’å«ć‚€ćƒ˜ćƒƒćƒ€ć‚’äøŠčØ˜ćƒ‡ćƒ¼ å¤•ć«ä»˜åŠ ć™ć‚‹ć‚¹ćƒ†ćƒ„ćƒ—ć«å«ć‚€ć“ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć€‚
4 0 . 請걂項 3 2ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć«ćŠć„ć¦ć€ äøŠčØ˜ä»˜åŠ ć‚¹ćƒ†ćƒƒćƒ—ćÆ态 äøŠčØ˜ć‚»ć‚Æć‚æ恔ćØć®ćƒ‡ćƒ¼ć‚æ悒äŗ’恄恫ē­‰ć—恄悵悤ć‚ŗć‚’ęœ‰ć™ć‚‹č¤‡ę•°ć®ć‚»ć‚Æć‚æ悒 ꜉恙悋惗惭情ć‚Æ惇äø€å¤•ć«å¤‰ę›ć™ć‚‹ćØćØ悂恫态 ć“ć®ćƒ–ćƒ­ćƒƒć‚Æćƒ‡ćƒ¼ć‚æ恫åŸŗ恄 恄恦äøŠčؘē¬¬ 2恮ć‚Øćƒ©ćƒ¼čØ‚ę­£ē¬¦å·ć‚’ē”Ÿęˆć—态 äøŠčØ˜ć‚»ć‚Æć‚æåŒ–ę‰‹ę®µć‹ć‚‰ć®ćƒ‡ćƒ¼ å¤•ć‚’äøŠčؘē¬¬ 2恮ć‚Øćƒ©ćƒ¼čØ‚ę­£ē¬¦å·ćØćØć‚‚ć«ćƒ–ćƒ­ćƒƒć‚ÆåŒ–ć™ć‚‹ćŸć‚ć®ć‚¹ćƒ†ćƒƒćƒ— ć‚’å«ć‚€ć“ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć€‚
4 1 . 請걂項 4 0ć®ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć«ćŠć„ć¦ć€ äøŠčؘ変čŖæć‚¹ćƒ†ćƒƒćƒ—ćÆ态 惖惭惃ć‚ÆåŒ–ć•ć‚ŒćŸäøŠčØ˜ćƒ‡ćƒ¼ć‚æć«ę‰€å®šć®ćƒ‡ć‚£ć‚øå¤•ćƒ«å¤‰čŖæć‚’ę–½ć™ćØćØ悂恫态 変čŖæć•ć‚ŒćŸćƒ‡ćƒ¼ć‚æ恫åÆ¾ć—ć¦äøŠčØ˜ęŒ‡ē¤ŗęƒ…å ±ć«åƾåæœć—ćŸåŒęœŸäæ”å·ć‚’ä»˜åŠ ć™ć‚‹ ć‚¹ćƒ†ćƒ„ćƒ—ć‚’å«ć‚€ć“ćØ悒ē‰¹å¾“ćØć™ć‚‹ćƒ‡ćƒ¼ć‚æčØ˜éŒ²ę–¹ę³•ć€‚
PCT/JP1996/002344 1995-08-24 1996-08-22 Appareil d'enregistrement de donnees, procede et appareil de reproduction de donnees WO1997008695A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019970702828A KR100273080B1 (ko) 1995-08-24 1996-08-22 ė°ģ“ķ„° źø°ė” ģž„ģ¹˜ģ™€ ė°©ė²• ė° ė°ģ“ķ„° ģž¬ģƒģž„ģ¹˜
EP96927873A EP0807930A4 (en) 1995-08-24 1996-08-22 DATA RECORDING APPARATUS, METHOD AND APPARATUS FOR REPRODUCING DATA
JP51010497A JP3735865B2 (ja) 1995-08-24 1996-08-22 ćƒ‡ćƒ¼ć‚æčØ˜éŒ²č£…ē½®ćŠć‚ˆć³ćć®ę–¹ę³•ć€äø¦ć³ć«ćƒ‡ćƒ¼ć‚æ再ē”Ÿč£…ē½®
US08/817,781 US6226247B1 (en) 1995-08-24 1996-08-22 Data recording apparatus that identifies the type of data in each block of data

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JP7/239119 1995-08-24
JP23911995 1995-08-24

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EP (1) EP0807930A4 (ja)
JP (1) JP3735865B2 (ja)
KR (1) KR100273080B1 (ja)
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WO (1) WO1997008695A1 (ja)

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EP0807930A1 (en) 1997-11-19
US6226247B1 (en) 2001-05-01
JP3735865B2 (ja) 2006-01-18
KR970707539A (ko) 1997-12-01
CN1164919A (zh) 1997-11-12
EP0807930A4 (en) 2002-04-10
CN1104721C (zh) 2003-04-02

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