WO2004049332A1 - 記録媒体、記録装置、再生装置、記録方法、再生方法 - Google Patents
記録媒体、記録装置、再生装置、記録方法、再生方法 Download PDFInfo
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- WO2004049332A1 WO2004049332A1 PCT/JP2003/014719 JP0314719W WO2004049332A1 WO 2004049332 A1 WO2004049332 A1 WO 2004049332A1 JP 0314719 W JP0314719 W JP 0314719W WO 2004049332 A1 WO2004049332 A1 WO 2004049332A1
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- data
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- replacement
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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
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
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- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
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- G—PHYSICS
- G11—INFORMATION STORAGE
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- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
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- G—PHYSICS
- G11—INFORMATION STORAGE
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- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1883—Methods for assignment of alternate areas for defective areas
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- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
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- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
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- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
- G11B27/327—Table of contents
- G11B27/329—Table of contents on a disc [VTOC]
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- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
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- G11B2020/10898—Overwriting or replacing recorded data
- G11B2020/10907—Overwriting or replacing recorded data using pseudo-overwriting, i.e. virtually or logically overwriting data on WORM media by remapping recorded blocks to alternate areas
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- G11B2020/1873—Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL
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- G11B2220/20—Disc-shaped record carriers
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- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
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- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2525—Magneto-optical [MO] discs
- G11B2220/2529—Mini-discs
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- G11B2220/2545—CDs
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- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
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- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
- G11B2220/2566—DVDs belonging to the minus family, i.e. -R, -RW, -VR
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- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
- G11B2220/257—DVDs belonging to the plus family, i.e. +R, +RW, +VR
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- G11—INFORMATION STORAGE
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- G11B2220/00—Record carriers by type
- G11B2220/40—Combinations of multiple record carriers
- G11B2220/41—Flat as opposed to hierarchical combination, e.g. library of tapes or discs, CD changer, or groups of record carriers that together store one title
Definitions
- the present invention particularly relates to a recording medium such as an optical disk as a write-once medium, and a recording apparatus, a recording method, a reproducing apparatus, and a reproducing method for the recording medium.
- CD Compact Disk
- MD Mini-Disk
- DVD Digital Data
- optical disks including magneto-optical disks
- An optical disk is a general term for a recording medium that irradiates a disk, which is a thin metal plate protected with plastic, with laser light and reads signals by changing the reflected light.
- optical discs There are two types of optical discs: read-only type, for example, known as CD, CD-ROM, DVD-ROM, etc., MD, CD-R, CD-RW, DVD-R, DVD-RW, DVD + RW, DVD—Some types can record user data as is known in RAM.
- the recordable type can record data by using a magneto-optical recording method, a phase change recording method, a dye film change recording method, or the like.
- the dye film change recording method is also called a write-once recording method, which is suitable for data storage and the like because data can be recorded only once and cannot be rewritten.
- the magneto-optical recording method and the phase change recording method can rewrite data. It is used for various purposes, including recording various content data such as music, video, games, and application programs.
- DVR Data & Video Recording
- a guide means for tracking a data track is required. Grooves (groups) are formed in advance as pre-groups, and the groups or lands (areas with a plateau cross section between groups) are used as data tracks.
- this address information may be recorded by wobbling the group. is there. That is, a track for recording data is formed in advance as, for example, a pre-group, and the side wall of this pre-group is wobbled in accordance with the address information. In this way, at the time of recording or reproduction, the address can be read from the wobbled information obtained as the reflected light information. For example, even if pit data indicating the address or the like is not formed on the track in advance, a desired address can be obtained. Data can be recorded and reproduced at the position.
- the absolute time (address) information represented by such a coupled group is defined as AT IP (Absolute Time In).
- optical recording media that can be recorded once, such as CD-R, DVD-R, and even write-once discs as high-density discs, it is naturally necessary to record data in the recorded area. Is impossible.
- the specifications of file systems recorded on optical recording media have been defined on the assumption that most of them are used on non-recordable read-only media (ROM type discs) or rewritable media (RAM type discs). I have.
- the file system for write-once recording media with one-time recording has specifications in which functions are restricted and special functions are added.
- Write-once media is widely used because it is useful for storing data overnight, but if it can be applied to the above-mentioned FAT file system with general specifications, the usefulness of write-once media Will be even higher.
- an object of the present invention is to further improve the usefulness of a write-once type recording medium by enabling data rewriting on a write-once type recording medium.
- the recording medium of the present invention comprises a main data area which is a license recording area in which data can be written once, and a data recording / reproduction in the main data area.
- a management / control area in which management / control information is recorded.
- the main data area includes a normal recording / reproducing area for recording / reproducing data. Area, a rewriting replacement area for recording rewriting data in response to a rewriting request for data recorded in the normal recording / reproducing area, and data updated in the normal recording / reproducing area in response to a data rewriting request.
- a replacement management area is provided for recording replacement management information with the rewrite data recorded in the rewriting replacement area in response to the rewriting request.
- the area sizes of the rewriting replacement area and the replacement management area are defined by the management Z control information recorded in the management Z control area. Further, information as to whether or not the rewriting replacement area and the replacement management area are available is included in the management information recorded in the management Z control area.
- the management / control area is a write-once recording area in which data can be written once, and management / control information for updating the management Z control information relating to the rewriting replacement area and the replacement management area.
- a spare area is provided.
- the recording apparatus of the present invention has a write-once recording area in which data can be written once, a main data area in the write-once recording area, and management for recording and reproducing data in the main data area.
- This is a recording device for a recording medium on which a Z control area is formed in which the Z control information is recorded. And it has a writing means for writing data and a format control means.
- the format control means records, in the main data area, a normal recording / reproducing area for recording / reproducing data, and rewrite data in response to a request for rewriting data recorded in the normal recording / reproducing area.
- the management / control information is recorded in the management Z control area by the writing means so that a management area is formed.
- a main data area which is a write-once recording area in which data can be written once, and management / control information for recording and reproducing data in the main data area are included.
- the main data area includes a normal recording / reproducing area for recording / reproducing data, and rewriting data in response to a request for rewriting data recorded in the normal recording / reproducing area.
- the replacement management area for recording, the replacement management information of the data to be updated in the normal recording / reproducing area by the data rewriting request and the rewriting data recorded in the rewriting replacement area by the rewriting request are recorded.
- This is a recording device for a recording medium provided with a replacement management area.
- the control means is provided.
- the writing control means if the address related to the write request is confirmed as unrecorded by the checking means, writes the data to the address related to the write request by the writing means. On the other hand, if the address related to the write request has been confirmed to be data recorded by the confirmation means, and if the data rewriting recording is determined to be possible by the determination means, the writing is performed. By means, data writing according to the above write request is executed in the rewriting replacement area, and control for recording replacement management information in the replacement management area is performed.
- the playback apparatus of the present invention records a main data area, which is a write-once recording area in which data can be written once, and management / control information for recording and reproducing data in the main data area.
- the main data area has a normal recording / reproducing area for recording / reproducing data
- the main data area has a rewriting data area in response to a request for rewriting data recorded in the normal recording / reproducing area.
- a read means for performing data readout and when a request for reading data from the main data area is made, it is checked whether or not the address associated with the read request is a data rewritten address.
- Confirmation means and read control means.
- the read control means executes the data read from the address related to the read request by the read means when the check means determines that the address related to the read request is not the data rewritten address.
- the confirmation means confirms that the address related to the read request is a data rewritten address
- the rewriting means performs the rewriting based on the replacement management information in the replacement management area. Control is performed to execute the data read related to the read request from the spare area.
- the recording method of the present invention has a write-once recording area in which data can be written once, a main data area in the write-once recording area, and a recording / reproduction for data in the main data area.
- a normal recording / reproducing area for recording / reproducing data and a normal recording / reproducing area are recorded in the main data area.
- the management Z control information is recorded in the management / control area so that a replacement management area for recording replacement management information with the recorded rewrite data is formed.
- the recording method of the present invention includes a main data area which is a write-once recording area in which data can be written once, and a method for recording and reproducing data in the main data area.
- the main data area has a normal recording / reproducing area for recording / reproducing data, and a data recording / reproducing area recorded in the normal recording / reproducing area.
- the rewriting data is recorded in response to the rewriting request of the rewriting area, the data to be updated in the normal recording / reproducing area by the rewriting request for one day, and the rewriting request is recorded in the rewriting replacement area by the rewriting request.
- This is a recording method for a recording medium provided with a replacement management area for recording replacement management information with written rewrite data.
- a confirmation step for confirming whether or not an address associated with the write request has already been recorded in a data write request to the main data area.
- the rewriting replacement area and the replacement management area are used to determine whether data rewriting recording is possible.
- the first write step of executing data writing to the address related to the write request and the confirmation step correspond to the write request. If it is confirmed that the address has already been recorded, and if it is determined in the determination step that data rewrite recording is possible, the data write related to the above write request is executed in the rewrite replacement area. And a second writing step of recording replacement management information in the replacement management area.
- a main data area which is a write-once recording area in which data can be written once, and management / control information for recording and reproducing data in the main data area are recorded.
- the main data area has a normal recording / reproducing area for recording and reproducing data, and a rewriting data is recorded in response to a request for rewriting data recorded in the normal recording / reproducing area.
- a replacement management area for recording replacement management information with replacement data recorded in the storage medium.
- the first read step of executing the data read from the address related to the read request and the confirmation step include: If it is confirmed that the address related to the read request is the address whose data has been rewritten, the data read related to the read request is executed from the rewrite replacement area based on the replacement management information in the replacement management area. A second reading step.
- the main data area is provided with a normal recording / reproducing area, a rewriting replacement area, and a replacement management area. Then, when a data write request is issued to an address where data has already been recorded in the normal recording / reproducing area, that is, when data rewriting is instructed, the recording apparatus records the rewriting data in the rewriting replacement area, Data rewriting is realized by recording replacement management information that associates the original address with the address in the rewriting replacement area in the replacement management area.
- the replacement management information is referred to by referring to the replacement management information, and Data is read from the address in the replacement area. As a result, the data that has been rewritten in the past is read correctly.
- FIG. 1 is an explanatory diagram of a disk according to an embodiment of the present invention.
- FIG. 2 is an explanatory diagram of a DMA of the disk of the embodiment.
- FIG. 3 is an explanatory diagram of a DDS use order of the disk of the embodiment.
- FIG. 4 is an explanatory diagram of the contents of the DDS of the disk of the embodiment.
- FIG. 5 is an explanatory diagram of the ISAs and #SAs of the device 7 of the embodiment.
- FIG. 6 is an explanatory diagram of the contents of the ATL of the display of the embodiment.
- FIG. 7 is an explanatory diagram of ATL list management information of the disk according to the embodiment.
- FIG. 8 is an explanatory diagram of address exchange information of the ATL of the embodiment.
- FIG. 9 is a block diagram of the disk drive device according to the embodiment.
- FIG. 10 is a flowchart of the format processing according to the embodiment.
- FIG. 11 is a flowchart of a recording process according to the embodiment.
- FIG. 12 is a flowchart of a reproduction process according to the embodiment. BEST MODE FOR CARRYING OUT THE INVENTION
- This optical disk can be implemented as a write-once disk in the category of a high-density optical disk system called DVR (Data & Video Recording).
- DVR Data & Video Recording
- the optical disk of this example has a disk size of 120 mm in diameter and a disk thickness of 1.2 mm. In other words, these points are similar to a CD (Compact Disc) type disc and a DVD (Digital Versatile Disc) type disc when viewed from the outside.
- CD Compact Disc
- DVD Digital Versatile Disc
- a so-called blue laser is used as a recording / reproducing laser, and a 12-cm-diameter disc is used because of the high NA of the optical system and the realization of a narrow track pitch and high linear density. Has realized a user data capacity of about 23 GB.
- FIG. 1 shows the layout (area configuration) of the entire disc.
- a lead-in zone, data zone, and lead-out zone are arranged from the inner circumference side.
- the prerecorded information area PIC on the innermost side of the lead-in zone is a read-only area, and the area from the management area of the lead-in zone to the lead-out zone is a write-once area in which recording can be performed once.
- recording tracks by a wobbling group are formed in a spiral shape.
- the glove serves as a guide for tracking when tracing with the laser spot.
- the group of parentheses is used as a recording track, and data is recorded and reproduced.
- an optical disk on which data is recorded in a group will be described.
- the present invention is not limited to such an optical disk of group recording, and an optical disk of a land recording system for recording data on lands between groups.
- the present invention may be applied to an optical disk of a land group recording system for recording data on a group and a land.
- the group of recording tracks has a meandering shape according to the wobble signal. Therefore, in a disk drive device for an optical disk, the positions of both edges of the group are detected from the reflected light of the laser spot applied to the group, and the positions of both edges when the laser spot is moved along the recording track are detected. By extracting a fluctuation component in the disk radial direction, a wobble signal can be reproduced.
- the address information (physical address, other additional information, etc.) of the recording track at the recording position is modulated on the wobble signal. Therefore, the disk drive device can perform address control and the like at the time of data recording and reproduction by demodulating address information and the like from the wobble signal.
- the lead-in zone shown in FIG. 1 is, for example, an area inside a radius of 24 mm.
- a radius of 22.2 to 23.1 mm in the lead-in zone is defined as a prerecorded information area PIC.
- disc information such as recording / reproduction power conditions, area information on the disc, and information on copy protection are stored in advance as read-only information by dubbing. It is recorded. These information may be recorded by emboss pits or the like.
- BCA Burst Cutting Area
- PIC prerecorded information area
- a range of a radius of 23.l to 24 mm is set as the management Z control information area.
- a predetermined area format including (Defect (Disc) Management Area), test light area, T%, j, and fa area is set.
- the following management / control information is recorded in the control data area in the management Z control information area.
- the disc type, disc size, disc version, layer structure, channel bit length, BCA information, transfer rate, data zone position information, recording linear velocity, recording Z playback laser power information, etc. are recorded.
- the test write area provided in the management / control information area is used for test writing when setting data recording / reproducing conditions such as laser power during recording / Z reproducing. That is, it is an area for adjusting recording and reproduction conditions.
- a DMA is provided in the management Z control information area.
- the DMA is called a “Defect Management Area”, that is, a defect management area. Is done.
- the DMA is not the replacement management of the defective part (although it is possible), but the management Z control information for realizing the data rewriting in this write-once type disk is recorded. And that means It functions as a "Disc Management Area" in taste.
- the DMA records ISA and OSA management information described later.
- a radius of 24.0 to 58.0 mm on the outer peripheral side of the lead-in zone is defined as a night zone.
- the data zone is the area where user data is actually recorded and reproduced.
- the start address ADdts and end address ADdte of the data zone are indicated in the data zone position information of the controller data area described above.
- an ISA Inner Spare Area
- an OSA Outer Spare Area
- IS A and OS A will be described later.
- OS A is used as a rewriting replacement area
- IS A is used as a replacement management area.
- OSA is formed with a predetermined number of cluster sizes from the end position of the data zone to the inner peripheral side.
- the size of I S A, ⁇ S A is described in the above DMA.
- a section sandwiched between IS A and OS A is defined as a user data area.
- This user data area is a normal recording / reproducing area normally used for recording / reproducing user data.
- the position of the user data area that is, the start address ADus and the end address ADue are described in the DMA.
- the outer side of the data zone for example, a radius of 58.0 to 58.5 mm, is defined as a lead-out zone.
- the lead-out zone is used as a management / control information area, and a control area, a DMA, a buffer area, and the like are formed in a predetermined format.
- a control area, a DMA, a buffer area, and the like are formed in a predetermined format.
- Various management Z control information is recorded in the same way as the control data area in the lead zone.
- the DMA is provided as an area for recording ISA and OSA management information in the same way as the DMA in the lead-in zone.
- the DMA in the present example records management Z control information for managing I SA and O S A for enabling data rewriting on a write-once disk.
- FIG. 2 shows the DMA in the lead-in zone as DMA 1 and the DMA in the lead-out zone as DMA 2.
- the size of the DMA is 32 clusters (32 x 6553 bytes).
- the DMA size is not limited to 32 clusters.
- Both DMA 1 in the lead-in zone and DMA 2 in the lead-out zone are areas in which detailed information DDS (Disc definition structure) of a disc composed of one class is recorded.
- DDS Disc definition structure
- DDS # 1 to DDS # 64 means that DDS can be written 64 times. In other words, the DDS itself can be updated 64 times.
- Fig. 3 shows the order of using DMAs. When the DMS is first written as the contents of the DMA, it is recorded as DDS # 1 in the cluster CL1 of the DMA1.
- DDS # 2 is recorded as DDS # 2 in the cluster CL2 of the DMA1. At this point, DDS # 1 becomes invalid.
- the DSS with the new contents is written using the class in order as shown in the figure.
- the DDS is updated by using the first class of the DMA 2 of the readout zone in order. That is, at each time, the outermost DDS is the effective DDS at that time.
- Fig. 4 shows the contents of the DDS.
- the byte position indicates the first byte of the DDS which is 65536 bytes as byte 0.
- the number of bytes indicates the number of bytes of each data content.
- DDS Identifier for recognizing that the cluster is a DDS cluster is recorded.
- One byte at byte position 2 contains the DDS format number (format purge
- the four bytes at byte positions 32 to 35 indicate the start position of the user data area in the data zone, that is, the position of LSN (logical sector address: logical sector address) "0", and the position of PSN (phisical sector). number: physical sector address).
- the 4 bytes at byte positions 36 to 39 indicate the end position of the user data overnight area in the data zone by LSN (Logical Sector One Address).
- the four bytes at byte positions 40 to 43 are the size of the ISA (inner spare area) in the data overnight zone.
- One byte at byte position 52 indicates a replacement area use flag indicating whether or not data can be rewritten using ISA and OSA.
- the spare area available flag shall indicate when all the ISAs or OSAs have been used.
- the DDS includes the address of the user data area, the size of I S A, the size of O S A, and the replacement area use flag. In other words, it is management / control information that manages the areas of IS A and OS A in the data zone.
- This update of the DDS is performed when the content of the DDS at that time is different from the actual disk state. Specifically, the update is performed when the OSA size is changed or the spare area use flag is changed.
- the disk of this example is a write-once type recording medium, but each class in the DMA is a replacement area for DDS (management Z control information), and the DDS for managing the data zone is substantially used. A structure that allows renewal is adopted.
- each of the lead-in zone and the lead-out zone may be provided with a plurality of DMAs.
- the two DMAs in the lead-in zone are defined as the areas of DDS # 1 to # 32 as DMA 1 in FIG. 2, and the two DMAs in the rear door zone are defined as DMA 2 in FIG. It is conceivable that the region is S # 33 to # 64. In other words, DDS is double-written to enhance data security.
- the two DMAs of the lead-in zone and the lead-out zone are used as separate DDS areas and used as DDS # 1 to # 128, the number of DDS updates that can be performed can be increased. it can.
- the IS A is provided as an M-class evening size area on the innermost side of the data zone.
- OSA is provided as an area of the size of the X cluster on the outermost peripheral side of the data zone.
- the size of the I S A as an M cluster and the size of the ⁇ S A as an X cluster are defined as the sizes described in the above DDS. That is, as described above, the size of IS A and O S A is described in DDS, so that IS A and O S A are set in the data zone. Updating the DDS, for example, makes it possible to increase the size of the OSA.
- ⁇ SA is a rewriting replacement area for recording rewriting data in response to a rewriting request for data recorded in a user data area, which is a normal recording / reproducing area.
- the Isa is composed of the data to be updated in the user data area by the data rewrite request and the rewrite data recorded in the OSA by the rewrite request.
- This is a replacement management area in which an address exchange list ATL (Address Transfer List) is recorded as replacement management information for one night.
- ATL Address Transfer List
- a certain address AD1 in the user data area is a position where data recording has already been performed.
- the address AD 1 cannot be written because it is a write-once recording medium.
- the address AD 1 and AD 2 are associated with the ISA, and an address exchange list ATL including address exchange information indicating that the data of the address AD 1 is recorded in the address AD 2 is recorded in the ISA. It does.
- the rewriting data is recorded in $ SA, and the replacement of the data location by the rewriting is managed in the address exchange list in the ISA, so that the write-once type disc is written.
- it actually implements data rewriting (for example, from the viewpoint of the host system ⁇ S, file system, etc.).
- the IS A is secured as an area for the M class, and the address exchange list ATL of one cluster is recorded for the IS A.
- Fig. 5 (b) initially, it is recorded as an address exchange list ATL # 1 in the first class of the ISA. After that, when the address exchange list ATL is updated, the subsequent classes in the ISA are used sequentially as shown in the figure, and are recorded as the address exchange list ATL # 2, # 3.
- ⁇ SA is secured as an area for X-class evening, but for ⁇ SA, rewriting data DT is recorded in units of one class evening.
- Fig. 5 As shown in (c), in the rewriting DT recording, one cluster area is used sequentially from the last class evening of the OSA to the first class evening of the OSA without any gap.
- Fig. 6 shows the structure of the address exchange list ATL.
- the address exchange list ATL is composed of one class, ie, 65536 bytes.
- the byte position is shown as a relative position with byte 0 at the beginning of the first class.
- List management information is recorded in 64 bytes at byte positions 0 to 63. In the 8 bytes at byte positions 64 to 71, first address exchange information at i # 1 is recorded.
- the remaining byte positions that is, byte positions (N X 8 + 6 4) to 6 5 5 3 5 are reserved.
- the list management information of 64 bytes at byte positions 0 to 63 is configured as shown in FIG.
- the 1 byte at byte position 2 indicates the ATL format number (version nampa).
- Fig. 8 shows the structure of the address exchange information ati registered in the address exchange list ATL.
- the address exchange information ati is 8-byte information (64 bits b0 to b63).
- bits b32 to b59 the address for which data rewrite (overwrite) has been requested is indicated by the physical sector address. For example, the address A D 1 exemplified in FIG. 5 is shown.
- the address in OSA where the rewrite data was actually written is indicated by the physical sector address.
- the address A D 2 exemplified in FIG. 5 is shown.
- Bits b60 to b63 and bits b28 to b31 are reserved and are all "0".
- the disk drive device of this example is a write-once type disk, for example, in a state where only the pre-recorded information area PIC of FIG. 1 is formed.
- the write-once area shall be able to form the disk layout in the state described in FIG. 1 by performing formatting processing on the disk in which nothing is recorded. It records and reproduces data in the user data area on a well-formatted disc.
- FIG. 9 shows the configuration of the disk drive device.
- the disc 1 is a write-once disc described above.
- the disk 1 is mounted on a turntable (not shown), and is rotated at a constant linear velocity (CLV) by a spindle motor 52 during a recording / reproducing operation.
- an optical pick-up (optical head) 51 reads out an A-DIP address embedded as a wobbling of a groove track on the disk 1 and management Z control information as pre-recorded information.
- management Z control information and user data are recorded on the track in the write-once area by optical pickup, and at the time of reproduction, the data recorded by the optical pickup is read.
- a laser diode as a laser light source, a photodetector for detecting reflected light, an objective lens as an output end of the laser light, and a laser beam are applied to the disk recording surface via the objective lens.
- An optical system (not shown) for irradiating and guiding the reflected light to the photodetector is formed.
- the objective lens is held movably in the tracking direction and the focus direction by a biaxial mechanism.
- the entire pickup 51 can be moved in the radial direction of the disc by a thread mechanism 53.
- the laser diode of the pickup 51 is driven to emit laser light by a drive signal (drive current) from the laser driver 63.
- the information of the reflected light from the disc 1 is detected by a photodetector in the pickup 51, and is supplied to the matrix circuit 54 as an electric signal corresponding to the amount of received light.
- the matrix circuit 54 includes a current-voltage conversion circuit, a matrix operation Z amplification circuit, and the like corresponding to output currents from a plurality of light receiving elements as photodetectors, and generates necessary signals by matrix operation processing.
- the processor For example, it generates a high-frequency signal (reproduced data signal) corresponding to the reproduced data, a focus error signal for servo control, and a tracking error signal.
- a push-pull signal is generated as a signal related to group wobbling, that is, a signal for detecting wobbling.
- matrix circuit 54 may be integrally formed in the pickup 51 in some cases.
- the reproduced data signal output from the matrix circuit 54 is supplied to the reader / writer circuit 55, the focus error signal and the tracking error signal are supplied to the service circuit 61, and the push-pull signal is supplied to the coupon circuit 58.
- the reader / writer circuit 55 performs a binarization process on the playback data signal, a playback clock generation process using a PLL, etc., reproduces the data read by the pickup 51, and supplies it to the modem circuit 56. I do.
- the modulation / demodulation circuit 56 has a functional part as a decoder at the time of reproduction and a functional part as an encoder at the time of recording. At the time of reproduction, as decoding processing, demodulation processing of run-length limited code is performed based on the reproduction clock.
- the ECC encoder Z decoder 57 performs an ECC encoding process for adding an error correction code during recording and an ECC decoding process for correcting an error during reproduction.
- the data demodulated by the modulation / demodulation circuit 56 is taken into the internal memory, and error detection Z correction processing and processing such as interleaving are performed to obtain reproduction data.
- the data decoded to the playback data by the ECC encoder Z decoder 57 is read out according to the instruction of the system controller 60, and is read out to a connected device, for example, an AV (Audio-Visual) system 120. Transferred.
- AV Audio-Visual
- the push-pull signal output from the matrix circuit 54 as a signal related to the dubbing wobbling is processed in the pebble circuit 58.
- the push-pull signal as ADIP information is demodulated into a data stream forming an ADIP address in a wobbled circuit 58 and supplied to an address decoder 59.
- the address decoder 59 decodes the supplied data, obtains an address value, and supplies it to the system controller 60.
- the address decoder 59 generates a clock by PLL processing using the enable signal supplied from the enable circuit 58, and supplies it to each section as, for example, an encoding clock at the time of recording.
- a push-pull signal as pre-recorded information PIC is subjected to band-pass filter processing in the It is supplied to the writer circuit 55.
- the data is subjected to ECC decoding and interleaving by an ECC encoder / decoder 57 to extract data as prerecorded information.
- the extracted pre-recorded information is supplied to the system controller 60.
- the system controller 60 can perform various operation setting processing and copy protection processing based on the read prerecorded information.
- recording data is transferred from the AV system 120, and the recording data is sent to the memory in the ECC encoder Z decoder 57 and buffered.
- the ECC encoder Z decoder 57 adds an error correction code, adds an in-leave leave, and adds a subcode, etc., as an encoding process of the buffered recording data.
- the ECC encoded data is subjected to, for example, RLL (1-7) PP modulation in a modulation / demodulation circuit 56 and supplied to a reader / writer circuit 55.
- a clock generated from a wobble signal is used as an encoding clock serving as a reference clock for these encoding processes during recording.
- the recording data generated by the encoding process is used as a recording compensation process in the reader / writer circuit 55 to fine-tune the optimum recording power for the characteristics of the recording layer, the spot shape of the laser beam, the recording linear velocity, etc., and to adjust the laser drive pulse waveform.
- the laser driver 63 supplies the supplied laser drive pulse to the laser diode in the pickup 51 to perform laser emission driving. As a result, pits corresponding to the recording data are formed on the disk 1.
- the laser driver 63 has a so-called APC circuit (Auto Power Control), and monitors the laser output power based on the output of a laser detector detector provided in the pickup 51.
- the output of the laser is controlled to be constant regardless of the temperature.
- the target value of the laser output at the time of recording and at the time of reproduction is given from the system controller 60, and at the time of recording and at the time of reproduction, control is performed so that the laser output level becomes the target value.
- the servo circuit 61 generates various servo drive signals for focus, tracking, and sled from the focus error signal and the tracking error signal from the matrix circuit 54, and executes the servo operation.
- a focus drive signal and a tracking drive signal are generated according to the focus error signal and the tracking error signal, and the focus coil and the tracking coil of the two-axis mechanism in the pickup 51 are driven.
- a pickup 51, a matrix circuit 54, a support circuit 61, a tracking support by a two-axis mechanism, and a force servo loop are formed.
- the support circuit 61 turns off the tracking servo in response to a track jump command from the system controller 60 and outputs a jump drive signal to execute a track jump operation.
- the support circuit 61 generates a thread drive signal based on a thread error signal obtained as a low-frequency component of the tracking error signal, an access execution control from the system controller 60, and the like. Drive.
- the thread mechanism 53 It has a main shaft, thread motor, transmission gear, and other mechanisms that hold the pickup 51, and drives the thread motor in response to a thread drive signal, so that the required slide movement of the pickup 51 is performed. .
- the spindle support circuit 62 controls the spindle motor 52 to rotate CLV.
- the spindle servo circuit 62 obtains the clock generated by the PLL process for the wobble signal as the current rotation speed information of the spindle motor 52, and compares this with predetermined CLV reference speed information to obtain the spindle speed. Generate an error signal.
- the reproduction clock (clock used as a reference for decoding) generated by the PLL in the reader / writer circuit 55 becomes the current rotation speed information of the spindle motor 52.
- the spindle error signal can be generated by comparing with the predetermined CLV reference speed information.
- the spindle servo circuit 62 outputs the spindle drive signal generated according to the spindle error signal, and outputs the C signal of the spindle motor 52.
- the spindle servo circuit 62 generates a spindle drive signal in response to the spindle kick Z brake control signal from the system controller 60, and also executes operations such as starting, stopping, accelerating, and decelerating the spindle motor 52. .
- the various operations of the servo system and the recording / reproducing system as described above are controlled by a system controller 60 formed by a microcomputer.
- the system controller 60 executes various processes in response to a command from the AV system 120. For example, when a write command (write command) is issued from the AV system 120, the system controller 60 first moves the pickup 51 to the address to be written.
- the ECC encoder / decoder 57 and the modulation / demodulation circuit 56 use the data transferred from the AV system 120 (for example, video data of various formats such as MPEG2, audio data, etc.) as described above. Execute the encoding process. Then, as described above, recording is executed by supplying the laser drive pulse from the reader / writer circuit 55 to the laser driver 63.
- the seek operation control is performed for the purpose of the designated address. I do. That is, a command is issued to the servo circuit 61, and the access operation of the pickup 51 targeting the address specified by the seek command is executed.
- the operation control required to transfer the data in the specified data section to the AV system 120 is performed. That is, data is read from the disk 1 and decode buffering in the reader / writer circuit 55, the modulation / demodulation circuit 56, the ECC encoder Z decoder 57 and the like are executed, and the requested data is transferred.
- the system controller 60 can control access and recording / reproducing operation using the ADIP address detected by the wobbled circuit 58 and the address decoder 59. .
- the system controller 60 sends the unique ID recorded in the BCA of the disc 1 (if the BCA is formed) or a wobble to the read-only area.
- glue Reads the pre-recorded information (PIC) recorded as a record.
- seek operation control is first performed for the purpose of BCA and pre-recorded data zone PR. That is, a command is issued to the servo circuit 61 to cause the pickup 51 to access the innermost side of the disk.
- a reproduction trace is executed by the pickup 51, and a push-pull signal as reflected light information is obtained, and the decoding process is performed by the cobble circuit 58, the reader / writer circuit 55, and the ECC encoder Z decoder 57.
- the system controller 60 performs laser power setting, copy protection processing, and the like based on the BCA information and pre-recorded information thus read.
- the disk drive device is connected to the AV system 120, but the disk drive device of the present invention may be connected to, for example, a personal computer.
- the device may be not connected to another device.
- an operation unit and a display unit are provided, and the configuration of the data input / output interface is different from that of FIG.
- recording and reproduction are performed according to the user's operation, and a terminal unit for inputting / outputting various data may be formed.
- the write-once type disk 1 used in the disk drive device is shipped from the factory before the initialization format. That is, only the pre-recorded information by the coupling group in the read-only area and the AD IP address by the coupling drive in the write-once area shown in FIG. 1 are recorded.
- an initialization format is performed in advance to form the structure of the management area in the lead-in zone described above, and at that time, the data is recorded by the information recorded in the DDS of the DMA. Ensure that the ISAs and OSAs in the zone are set.
- FIG. 10 shows a control process of the system controller 60 for executing the format process.
- pre-recorded information is read as step F10. That is, the system controller 60 causes the pickup 51 to access the innermost peripheral side of the disk and to execute the reading of the prerecorded information. By reading the pre-recorded information, the system controller 60 obtains basic information on the disc 1.
- step F11 the sizes as I S A and ⁇ S A are set.
- the size of I SA and ⁇ SA may be fixedly set in advance by a format program in the system controller 60, or, for example, the connected AV system 120 or the application or OS on the personal computer overnight. For example, it may be instructed.
- step F12 the start address ADus and the end address ADue of the user data area are determined from the address of the data zone and the sizes of IS A and OS A set in step F 11.
- the start address ADdts and end address AD dte of the data zone are recorded in, for example, pre-recorded information, so that the system controller 60 can grasp the data address. Therefore, the start address A Dus of the user data area is set as the ISA size in the start address ADdts of the data zone. It can be calculated as an address obtained by adding all cluster numbers. The end address A Due of the user data area can be calculated as an address obtained by subtracting the number of clusters as the OSA size from the end address ADdte of the data zone.
- the data as the first DDS # 1 is generated in step F13.
- step F14 the DMA including the above-mentioned DDS # 1 and the management / control information of the controller data area are recorded in the management area of the lead-in zone.
- the DMA that records DDS # 1 in the first class evening, the control data area information generated based on the pre-recorded information, etc. are recorded, and the test write area buffer area is secured. Create a management area.
- This initialization format processing may be performed by a formatting disk drive before shipment from the factory.
- the specified logical sector address A DX (L) is converted into a physical sector address AD x (P).
- the physical sector address AD X) can be obtained by adding the “start physical sector address of the user data area” recorded in the DDS to the logical sector address AD X (L).
- step F 102 If the physical sector address AD X (P) is an unrecorded address, the process proceeds from step F 102 to F 103 to record data in the physical sector address AD x (P) and finish the processing. .
- step F 102 if the physical sector address AD x (P) related to the write request is a recorded address, the process proceeds from step F 102 to F 104, where there is free space in OSA or ISA. It is determined whether or not. This determination can be made by using the replacement area use flag of the DDS shown in Fig. 4. ⁇ ⁇ For the availability of SA, the unrecorded class of OSA in the ISA list management information shown in Fig. 7 It is also possible to check the number of evenings.
- step F104 the processing of the system controller 60 proceeds from step F104 to step F105, and the pickup 51 is made to access the OSA, and the current time is written to the physical sector address (ADX).
- ADX physical sector address
- step F106 ISA recording is executed according to the current writing.
- step F106 is as follows.
- the address exchange list ATL in the ISA (see FIG. 6) is used as the physical sector address.
- Address exchange information ati (see Fig. 8) with AD X (P) as the replacement physical sector address and address AD X (0SA) as the replacement physical sector address has been added, and list management information (see Fig. 7). )
- the processing relating to the write request is completed.
- the system controller 60 can respond to a write request for an already recorded address, that is, a data rewrite request, by using the ISA and OSA.
- step F104 if there is no free area in either SA or ISA and it is not possible to record the rewrite data or update the address exchange list ATL, the current write request Since it cannot be handled, the process proceeds from step F104 to F107, returning an error to the host system that there is no write area, and terminating the processing.
- the specified logical sector address AD X (L) is converted to a physical sector address AD X (h).
- the physical sector address AD x (P) is an address registered as a replacement source physical sector address in one of the address exchange information ati in the address exchange list ATL.
- step F 202 If the physical sector address AD X (P) is not an address registered in the address exchange list ATL, the process proceeds from step F 202 to F 203 and the physical sector address AD x) is not recorded. Check if it is the address.
- step F205 If the address is an unrecorded address, the process naturally proceeds to step F205, returns an address error to the host, and ends the processing.
- step F204 data reproduction is performed from the physical sector address ADX (P), and the process ends.
- step F202 the process proceeds from step F202 to F206.
- the replacement physical sector address ADX (0SA) is read from the corresponding address exchange information ati power in the address exchange list ATL. That is, the address in $ SA.
- step F207 the system controller 60 registers the address AD X in the SA that is registered as the replacement physical sector address. (OSA) to read data, transfer the playback data to the host device such as AV system 120, and finish the process.
- OSA replacement physical sector address
- a write-once type disk can respond to a write request to the same address. Therefore, the conventional write-once type disk cannot be used. Can use the file system that was not possible. For example, a file system that supports various OSs, such as the FAT file system, can be applied as it is, and data can be exchanged without being aware of the OS differences.
- video data and music data can be used as an updatable medium as long as the unrecorded area of the ISA and OSA remains.
- ISA and OSA are used for rewriting data.
- ISA and OSA can be used as they are even for replacement of defective areas. That is, when an address as a defective area is found on the disk, data to be written to the address is recorded in the SA, and both addresses may be registered as address exchange information ati in the ISA.
- the disk of the embodiment and the disk drive corresponding thereto have been described above, but the present invention is not limited to these examples, and various modifications can be considered within the scope of the gist.
- the recording medium of the present invention can be applied to a recording medium other than an optical disk medium.
- the main data area includes a normal recording / reproducing area (user data area), a rewriting replacement area (OSA), and a replacement management area (ISA).
- OSA rewriting replacement area
- ISA replacement management area
- ATL recording replacement management information
- the replacement management information is referred to in the rewrite replacement area that has been replaced with the requested address. Read data from address. This ensures that the data that has been rewritten in the past is correctly read.
- a write-once type recording medium can be used as a substantially rewritable recording medium. Therefore, a file system such as FAT corresponding to the rewritable recording medium can be used for the write-once type recording medium, and the usefulness of the write-once type recording medium can be significantly improved.
- the FAT file system which is a standard file system in an information processing device such as a personal computer, is a file system capable of recording and reproducing a rewritable recording medium from various OSs (operating systems).
- the FAT file system can be applied to once-type recording media as it is, and data can be exchanged without being aware of differences in OS.
- the write-once type recording medium can be used as a data rewritable recording medium as long as an unrecorded area remains, so that the write-once type recording medium can be used effectively, and resources are wasted. This also has the effect of reducing noise.
- the area size of the rewriting replacement area and the replacement management area can be set by being specified by the management control information (DDS) recorded in the management Z control area. Therefore, by setting and updating the management / control information, the area size of the rewrite replacement area or the replacement management area can be flexibly set according to the system or application to be used.
- DDS management control information
- the information on whether or not the rewriting replacement area and the replacement management area can be used is included in the management / control information recorded in the management / control area, so that the recording device and the like can no longer be rewritten. Whether it is possible or not can be easily and accurately determined.
- a management Z control information replacement area for updating the management / control information (DDS) relating to the rewriting replacement area and the replacement management area.
- the management information can be updated.
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- Signal Processing For Digital Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2003801001389A CN1685426B (zh) | 2002-11-22 | 2003-11-19 | 记录介质、记录装置、重放装置、记录方法和重放方法 |
| EP03775835A EP1564740B1 (en) | 2002-11-22 | 2003-11-19 | Recording medium, recording device and recording method |
| US10/501,403 US7349301B2 (en) | 2002-11-22 | 2003-11-19 | Write-once recording medium on which portion of the data is logically overwritten |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002339094A JP4606693B2 (ja) | 2002-11-22 | 2002-11-22 | 光ディスク、記録装置、再生装置、記録方法、再生方法 |
| JP2002-339094 | 2002-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004049332A1 true WO2004049332A1 (ja) | 2004-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/014719 Ceased WO2004049332A1 (ja) | 2002-11-22 | 2003-11-19 | 記録媒体、記録装置、再生装置、記録方法、再生方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7349301B2 (ja) |
| EP (1) | EP1564740B1 (ja) |
| JP (1) | JP4606693B2 (ja) |
| KR (1) | KR101034339B1 (ja) |
| CN (1) | CN1685426B (ja) |
| TW (1) | TWI264706B (ja) |
| WO (1) | WO2004049332A1 (ja) |
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| WO2005062306A1 (en) * | 2003-12-24 | 2005-07-07 | Samsung Electronics Co., Ltd. | Method and apparatus for recording and/or reproducing data on/from write-once disc, and write-once disc therefor |
| WO2005124765A1 (ja) * | 2004-06-15 | 2005-12-29 | Matsushita Electric Industrial Co., Ltd. | ドライブ装置 |
| WO2005124768A1 (ja) * | 2004-06-15 | 2005-12-29 | Matsushita Electric Industrial Co., Ltd. | ドライブ装置 |
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| EP1600957A3 (en) * | 2004-05-25 | 2006-07-05 | Nec Corporation | Optical disc recording system |
| JPWO2005124773A1 (ja) * | 2004-06-15 | 2008-04-17 | 松下電器産業株式会社 | ドライブ装置 |
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| CN100449629C (zh) * | 2004-08-16 | 2009-01-07 | 索尼株式会社 | 记录介质、记录装置、再现装置、记录方法和再现方法 |
| CN1860549B (zh) * | 2004-06-15 | 2011-06-15 | 松下电器产业株式会社 | 驱动装置 |
| EP1771856A4 (en) * | 2004-07-30 | 2012-03-14 | Samsung Electronics Co Ltd | INFORMATION RECORDING MEDIUM, RECORDING / PLAYING DEVICE, AND RECORDING / REPLAYING METHOD |
| EP1834333A4 (en) * | 2004-12-15 | 2012-03-14 | Samsung Electronics Co Ltd | RECORDING / REPRODUCING DEVICE FOR CARRYING OUT RMW FOR LOW, RECORDING / PLAY PROCESS THEREFOR AND INFORMATION STORAGE MEDIA THEREFOR |
| EP1789968A4 (en) * | 2004-09-14 | 2012-05-16 | Lg Electronics Inc | RECORDING MEDIUM, METHOD AND APPARATUS FOR RECORDING AND REPRODUCING DATA ON THIS MEDIUM |
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| CN100449629C (zh) * | 2004-08-16 | 2009-01-07 | 索尼株式会社 | 记录介质、记录装置、再现装置、记录方法和再现方法 |
| EP1789968A4 (en) * | 2004-09-14 | 2012-05-16 | Lg Electronics Inc | RECORDING MEDIUM, METHOD AND APPARATUS FOR RECORDING AND REPRODUCING DATA ON THIS MEDIUM |
| EP1834333A4 (en) * | 2004-12-15 | 2012-03-14 | Samsung Electronics Co Ltd | RECORDING / REPRODUCING DEVICE FOR CARRYING OUT RMW FOR LOW, RECORDING / PLAY PROCESS THEREFOR AND INFORMATION STORAGE MEDIA THEREFOR |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1685426A (zh) | 2005-10-19 |
| KR101034339B1 (ko) | 2011-05-16 |
| US7349301B2 (en) | 2008-03-25 |
| EP1564740A4 (en) | 2010-11-10 |
| US20050083767A1 (en) | 2005-04-21 |
| TW200423048A (en) | 2004-11-01 |
| KR20050083546A (ko) | 2005-08-26 |
| EP1564740A1 (en) | 2005-08-17 |
| TWI264706B (en) | 2006-10-21 |
| JP4606693B2 (ja) | 2011-01-05 |
| CN1685426B (zh) | 2010-09-29 |
| JP2004171714A (ja) | 2004-06-17 |
| EP1564740B1 (en) | 2013-01-02 |
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