WO2005124767A1 - ドライブ装置 - Google Patents
ドライブ装置 Download PDFInfo
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- WO2005124767A1 WO2005124767A1 PCT/JP2005/010890 JP2005010890W WO2005124767A1 WO 2005124767 A1 WO2005124767 A1 WO 2005124767A1 JP 2005010890 W JP2005010890 W JP 2005010890W WO 2005124767 A1 WO2005124767 A1 WO 2005124767A1
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- Prior art keywords
- recording
- replacement
- data
- track
- area
- Prior art date
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- 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
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1883—Methods for assignment of alternate areas for defective areas
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- 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
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
-
- 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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- 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
- 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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- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1883—Methods for assignment of alternate areas for defective areas
- G11B2020/1893—Methods for assignment of alternate areas for defective areas using linear replacement to relocate data from a defective block to a non-contiguous spare area, e.g. with a secondary defect list [SDL]
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/218—Write-once discs
Definitions
- the present invention relates to a drive device that records data on an information recording medium and reproduces the data recorded on the information recording medium.
- Examples of such rewritable optical disks are DVD-RAM disks, BD-RE (Blu-
- Examples of write-once optical disks include a DVD-R disk and a BD-R (Blu-ray Disc Recordable) disk.
- the defect management mechanism is roughly divided into a slipping replacement algorithm and a linear replacement algorithm.
- the slipping replacement algorithm is mainly implemented when formatting a disc. That is, at the time of format processing, all ECC clusters in the user data area are inspected, and if a defective cluster is found, its position is registered in a primary differential list (hereinafter, PDL), and a corresponding logical cluster is registered. Shift to the next non-defective physical cluster.
- PDL primary differential list
- the linear replacement algorithm is performed when recording user data.
- the user data is alternately recorded in a spare area provided on the innermost circumference or the outermost circumference on the disk.
- the above-described verify processing is also performed in the alternative recording. If the recording succeeds, the data recording position is determined.At this point, an SDL entry that is information that associates the position information of the defective cluster with the position information of the replacement ECC cluster is generated and registered in the above SDL. .
- each ECC cluster can be used as a replacement destination, that is, it is currently a free area. It is already used as a replacement destination. There are times when you manage. An empty area in this spare area is also called a spare cluster.
- the above-described PDL and SDL are recorded in a differential management area (hereinafter, DMA) provided in a lead-in area on the disk.
- DMA differential management area
- the DMA also includes information such as the capacity of the replacement area.
- FIG. 3A of Patent Document 1 describes a data structure of a disk.
- the DMA is provided in the lead-in area and the lead-out area.
- TDMA temporary differential management area
- TDMA temporary defect management information
- TDFL temporary defect information
- FIG. 5B in Patent Document 1 shows a data structure of TDDS.
- the TDDS records the last recorded address (last recorded add ress) on the write-once optical disc.
- the last recorded address last recorded add ress
- one write-once optical disk can have a plurality of final recording addresses.
- TDDS a last recorded replacement address on the write-once optical disc is recorded.
- one disk can have a plurality of final recording replacement addresses.
- FIG. 6 of Patent Document 1 shows a TDFL data structure.
- the TDFL includes information regarding defect # 1, # 2,.
- the defect-related information includes state information, a pointer to a defective cluster, and a pointer to a substitute cluster.
- the defect related information has the same data structure and function as the SDL entry included in the above-described SDL.
- FIG. 33A and FIG. 33B show a method of updating TDFL disclosed in FIG. 9A and FIG. 9B of Patent Document 1.
- FIG. 33A shows the data structure of TDFL # 0.
- TDFL # 0 is defective # 1, # 2,
- TDFL # 1 maintains the new defect management information contained in TDFL # 0, Generated by adding defect related information # 4, # 5 to defect # 4, # 5
- FIG. 10 of Patent Document 1 shows a data structure of defect-related information.
- the defect-related information includes state information.
- the state information includes information indicating whether the defect area is a continuous defect block and whether the defect area is a single defect block.
- the defect-related information includes a pointer to the defective area (the position of the defective area on the disc).
- the defect-related information includes a pointer to a replacement area corresponding to the defect area.
- the status information indicates that a pointer to the defective area is a start or end position of a continuous defective block. Also, the pointer force to the substitute area indicates the start or end position of those substitute blocks.
- the physical address where data is actually recorded without changing the apparent logical address where data is recorded is determined in advance by using replacement information such as defect-related information and an SDL entry. Mapping to another secured location is performed.
- FIG. 31 shows some directories and files on the information recording medium 1 which is a write-once optical disc.
- FIG. 6 is a diagram showing a state where is recorded. In this state, it is assumed that the pseudo-overwrite recording has not been performed yet.
- a user data area on the disc is managed in units of tracks and sessions.
- management of user data recorded in the user data area is performed by a file system.
- the space managed by the file system is called volume space 2.
- the descriptors and pointers recorded on the information recording medium 1 as the volume Z file structure constituting the file system, the structure of the metadata partition and the metadata file, etc. Unless otherwise specified, it shall have the data structure specified in the ISOZIEC13346 standard or UDF (Universal Disk Format) standard.
- a volume structure area 3 and a physical partition 4 are recorded in the volume space 2.
- the physical partition 4 includes a metadata partition 5a, ⁇ defined by the UDF standard version 2.5.
- All information of the file structure such as the FE and the directory file is arranged in the metadata partition, that is, the metadata file.
- the recording position of the metadata partition 5a and the file set descriptor (FSD) 12 is recorded in the volume structure area 3.
- FE (File-c) 14 is a metadata partition 5a.
- the replacement information included in the disk management information 2 is updated, and FE (ROOT) 13 is changed to FE (R
- the FE (metadata file) 7a and the position information of the FSD 12 are obtained from the volume structure area 3 of the information recording medium 1.
- the position information of the FE (ROOT) 13 is obtained from the reproduced FSD 12 as a logical address.
- the FE (ROOT) 13 is reproduced based on the acquired position information (logical address) of the FE (ROOT) 13.
- the replacement information is referred to, and the FE (ROOT) 16 mapped to the position information (logical address) of the FE (ROOT) 13 is reproduced. Since the FE (ROOT) 16 includes the latest ROOT directory file, the FE (ROOT) 16 has the position information to the FE (File-c) 14.
- Patent Document 1 US Patent Application Publication No. 2004Z0076096
- the capacity is determined at the time of formatting (initializing) the disc.
- An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a drive device that can use a user data area without waste in pseudo overwrite recording of a write-once optical disc.
- a drive device of the present invention is a drive device that performs sequential recording on a write-once recording medium, wherein the write-once recording medium includes a data area and a disc management information area, and the data area is , A spare area and a user data area, wherein the disk management Disk management information for managing the write-once recording medium is recorded in the information area, a plurality of physical addresses are assigned to the data area, and a plurality of physical addresses are assigned to the user data area.
- a logical address is assigned, a plurality of tracks are assigned to the user data area, the disc management information includes track management information for managing the plurality of tracks, and the track management information Includes a final recording address which is a physical address indicating a position where data is last recorded in the track, wherein the drive device performs a recording operation or a reproduction operation on the write-once recording medium, and A drive control unit for controlling the recording / reproducing unit, wherein the drive control unit has a logic indicating a position where data is to be recorded.
- Receiving the recording instruction including the address, reading the disk management information, and associating the plurality of logical addresses with the plurality of physical addresses based on the disk management information.
- Determining an initial logical address physical address mapping indicating a relationship obtaining track management information indicating respective positions of the plurality of tracks from the disk management information, and according to the initial logical address physical address mapping. Converting the logical address included in the recording instruction into a physical address, and based on the physical address corresponding to the logical address included in the recording instruction and the track management information, Determining the first track and closing said first track Determining if the track is a track, and, if the first track is determined to be a closed track, determining a second track that is an open track different from the first track.
- the first track may be a closed track including an unrecorded area!
- the drive control unit determines whether or not the physical address corresponding to the logical address included in the recording instruction is a force included in the unrecorded area of the first track. If it is determined that the physical address corresponding to the logical address included in the recording instruction is included in the unrecorded area of the first track, the recording is performed. Executing a process further including generating padding data and inserting the padding data into the data so as to match a boundary force 3 ⁇ 4cc cluster boundary of data recorded on the write-once type recording medium according to the instruction. You can.
- FIG. 1A is a diagram showing an example of an appearance of an information recording medium 100 according to an embodiment of the present invention.
- FIG. 1B is a diagram showing an example of a data structure of the information recording medium 100 according to the embodiment of the present invention.
- FIG. 1C shows an example of the data structure of user data area 108 shown in FIG. 1B.
- FIG. 2A is a diagram showing an example of a data structure of session management information 200 according to the embodiment of the present invention.
- FIG. 2B is a diagram showing an example of a data structure of the track management information 210 according to the embodiment of the present invention.
- FIG. 2C is a diagram showing an example of a data structure of the free space management information 220 according to the embodiment of the present invention.
- FIG. 3 is a diagram showing an example of a data structure of disk structure information 1100 according to the embodiment of the present invention.
- FIG. 4 is a diagram showing an example of a data structure of another information recording medium 100b according to the embodiment of the present invention.
- FIG. 5A is a diagram showing an example of a data structure of a replacement management information list 1000 according to the embodiment of the present invention.
- FIG. 5B is a diagram showing an example of a data structure of the replacement management information 1010 according to the embodiment of the present invention.
- FIG. 6 shows an example of a configuration of an information recording / reproducing apparatus 300 according to an embodiment of the present invention.
- FIG. 7 is a diagram showing an example of a data structure on the information recording medium after the format processing according to the embodiment of the present invention.
- FIG. 8A is a flowchart showing a recording process according to the embodiment of the present invention.
- FIG. 8B is a flowchart showing an RMW process in the embodiment of the present invention.
- FIG. 9 is a diagram showing an example of a data structure on the information recording medium after the recording process in the embodiment of the present invention.
- FIG. 10 is a flowchart showing a reproduction process according to the embodiment of the present invention.
- FIG. 11 is a diagram showing an example of a data structure of replacement management information 1010B according to the embodiment of the present invention.
- FIG. 12 is a diagram showing an example of a data structure of a physical address space and a logical address space according to the embodiment of the present invention.
- FIG. 13A is an explanatory diagram relating to replacement recording according to the embodiment of the present invention.
- FIG. 13B] is a explanatory diagram relating to replacement management information according to the embodiment of the present invention.
- FIG. 14A] FIG. Illustration of replacement record ⁇ 14B]
- FIG. 14B is an illustration of replacement management information according to an embodiment of the present invention ⁇ 15A]
- FIG. 15A is an explanatory view of replacement record of an embodiment of the present invention ⁇ 15B]
- FIG. 16A is an explanatory diagram related to replacement recording according to an embodiment of the present invention.
- 16B] is an explanatory diagram related to replacement management information according to an embodiment of the present invention.
- FIG. 16B is an explanatory diagram related to replacement management information according to an embodiment of the present invention.
- FIG. 16B is an explanatory diagram related to replacement management information according to an embodiment of the present invention.
- FIG. 16A is an explanatory diagram related to replacement recording according to an embodiment of the
- FIG. 17A is an explanatory diagram related to replacement recording in the embodiment of the present invention.
- FIG. 17B is an explanatory diagram related to replacement management information in the embodiment of the present invention.
- FIG. 18 FIG. It illustrates an example of a data structure of the DFL entry 2010 which is management information
- FIG. 19A is a flowchart illustrating a recording process according to an embodiment of the present invention.
- FIG. 19B is a flowchart illustrating a recording process according to an embodiment of the present invention.
- FIG. 20B is an explanatory diagram relating to the replacement management information according to the embodiment of the present invention.
- ⁇ 21A] is an explanatory diagram relating to replacement recording according to the embodiment of the present invention.
- ⁇ 21B] FIG. 21B is an explanatory diagram relating to replacement management information according to the embodiment of the present invention.
- ⁇ 22A] FIG. Explanatory diagram concerning replacement record ⁇ 22B] FIG.
- FIG. 22B is an explanatory diagram concerning spare management information according to an embodiment of the present invention ⁇ 23A]
- FIG. 23A is an explanatory diagram concerning spare record according to an embodiment of the present invention ⁇ 23B]
- FIG. 24A] is an explanatory diagram related to replacement recording according to an embodiment of the present invention.
- 24B] is an explanatory diagram related to replacement management information according to an embodiment of the present invention.
- FIG. 25 is an exemplary diagram of a data structure of track management information according to the embodiment of the present invention.
- FIG. 26A is an explanatory diagram relating to replacement recording in the embodiment of the present invention.
- FIG. 26B is an embodiment of the present invention. Illustration ⁇ 27]
- FIG 27 is an explanatory diagram related to replacement recording according to an embodiment of the present invention relates to the replacement management information definitive
- FIG. 28 is an explanatory diagram regarding replacement recording in the embodiment of the present invention.
- FIG. 29 is an explanatory diagram of replacement recording in the embodiment of the present invention.
- FIG. 30 is an explanatory diagram of replacement recording in the embodiment of the present invention.
- FIG. 31 is a diagram showing an example of a data structure on an information recording medium in the related art
- FIG. 32 is a diagram showing an example of a data structure on an information recording medium after file recording processing according to a conventional technique.
- FIG. 33A is a diagram showing an example of a data structure of a TDFL according to the related art
- FIG. 33B is a diagram showing an example of a data structure of a TDFL in the related art
- FIG. 34 is a flowchart showing a recording process in an embodiment of the present invention.
- FIG. 35A is an explanatory diagram relating to replacement recording in an embodiment of the present invention.
- FIG. 36A is a flowchart in an embodiment of the present invention.
- 37A] FIG. 37A is an explanatory diagram of replacement recording according to an embodiment of the present invention.
- ⁇ 37B] FIG. 37B is an explanatory diagram of replacement management information according to an embodiment of the present invention.
- ⁇ 38A] FIG. 38A is an embodiment of the present invention.
- FIG. 38B is an explanatory diagram relating to replacement management information according to an embodiment of the present invention.
- FIG. 39A is an explanatory diagram relating to replacement recording according to an embodiment of the present invention.
- FIG. 39B is an explanatory diagram relating to replacement management information according to the embodiment of the present invention.
- FIG. 40A] is an explanatory diagram relating to replacement recording according to the embodiment of the present invention.
- ⁇ 41A] FIG. FIG. 41B is an explanatory diagram related to replacement management information according to an embodiment of the present invention.
- ⁇ 42A] FIG. 42A is an explanatory diagram related to replacement recording according to an embodiment of the present invention.
- FIG. 43A is a flowchart illustrating a recording process according to an embodiment of the present invention. [44A] FIG.
- FIG. 44A is an explanatory diagram relating to a replacement recording according to an embodiment of the present invention.
- FIG. 45A is an explanatory diagram related to replacement recording in the embodiment of the present invention.
- FIG. 45B is an explanatory diagram related to replacement management information in the embodiment of the present invention.
- ⁇ 46A] FIG. 46A is a diagram related to the embodiment of the present invention. Explanatory diagram regarding replacement record ⁇ 46B]
- FIG. 46B is an explanatory diagram concerning replacement management information according to the embodiment of the present invention ⁇ 47]
- FIG. 47 is an explanatory diagram regarding surrogate recording according to the embodiment of the present invention] 48]
- FIG. 49A] FIG. 49A is an explanatory diagram of replacement recording according to an embodiment of the present invention.
- FIG. 50A is an explanatory diagram of replacement recording according to an embodiment of the present invention.
- ⁇ 51A] FIG. 51A is an explanatory diagram relating to replacement recording in the embodiment of the present invention.
- FIG. 51B is an explanatory diagram relating to replacement management information in the embodiment of the present invention.
- FIG. 52A] FIG. 52A is a description relating to replacement recording in the embodiment of the present invention.
- FIG. 52B is an explanatory diagram of replacement management information in the embodiment of the present invention.
- FIG. 53A] FIG. 53A is an explanatory diagram of replacement recording in the embodiment of the present invention.
- 53B] FIG. 53B is an embodiment of the present invention.
- Fig. 54 is an explanatory diagram related to replacement recording in an embodiment of the present invention.
- [55] Fig. 55 is an explanatory diagram related to replacement recording in an embodiment of the present invention. Explanatory drawing regarding replacement recording in the embodiment of the present invention.
- FIG. 1A shows the appearance of information recording medium 100 according to the embodiment of the present invention.
- a lead-in area 101 is arranged on the innermost circumference of the information recording medium 100.
- a lead-out area 103 is arranged on the outermost periphery of the information recording medium 100.
- a data area 102 is arranged between a read-in area 101 and a lead-out area 103 of the information recording medium 100.
- the lead-in area 101 reference information necessary for the optical pickup included in the recording / reproducing unit 314 described later to access the information recording medium 100, information for identifying the recording medium 100 from other recording media, and the like are recorded. ing. Information similar to the information recorded in the lead-in area 101 is also recorded in the lead-out area 103.
- a plurality of physical sectors are allocated to the lead-in area 101, the data area 102, and the lead-out area 103.
- Each physical sector is a minimum access unit.
- Each physical sector Is identified by address information called a physical sector number (hereinafter, PSN).
- Data recording / reproduction is performed using an ECC cluster (or ECC block) including a plurality of physical sectors as a minimum unit.
- FIG. 1B shows a data structure of information recording medium 100.
- a lead-in area 101, a data area 102, and a lead-out area 103 which are shown concentrically in FIG. 1A, are shown arranged in the horizontal direction.
- the lead-in area 101 includes a disk management information area 104, and the lead-out area 103 includes a disk management information area 105.
- Disk management information is recorded in each of the disk management information areas 104 and 105.
- the disk management information includes a replacement management information list described later, session management information, free space management information, and the like.
- the disk management information areas 104 and 105 are used as areas for updating the disk management information. The area for this update is also called the temporary disk management information area.
- the term “disk management information area” in this specification is replaced with “disk management area”, and the term “temporary disk management information” in this specification is used.
- the term “area” is read as “temporary disk management area”
- the term “disk management information” in this specification is read as “disk management structure”
- the term “temporary disk management information” in this specification is called “temporary disk management structure”. Shall be replaced.
- the data area 102 includes an inner spare area 106, a user data area 108, and an outer spare area 107.
- the user data area 108 is an area used for recording user data.
- FIG. 1C shows a data structure of user data area 108.
- the user data area 108 includes a plurality of sessions. Each session includes multiple tracks.
- Each track is a continuous area on the information recording medium 100. Each track is managed by track management information described later.
- Each session includes a plurality of tracks continuously arranged on the information recording medium 100. Each session is managed by session management information described later.
- FIG. 2A shows a data structure of session management information 200 for managing a session.
- the session management information 200 is included in the disk management information.
- the session management information 200 includes header information 201 and a plurality of track management information.
- the header information 201 has general information such as an identifier of the session management information 200 and the number of the track management information 210 shown in Fig. 2B.
- Track management information #N has information corresponding to track #N shown in FIG. 1C.
- N is an integer of 1 or more.
- FIG. 2B shows a data structure of track management information 210 for managing tracks.
- the track management information 210 is included in the disk management information.
- the track management information 210 includes session start information 211 indicating whether the track is the first track of the session, track start position information 212 indicating the start position of the track, and the last data in the track.
- a value indicating that the track is located at the beginning of the session for example, “1”
- the track start position information 212 includes a physical address indicating the start position of the track.
- the in-track final data recording position information 213 includes a physical address indicating the last position where valid data is recorded in the track.
- the valid data is, for example, user data supplied from the host device 305.
- LRA 120 and LRA 121 shown in FIG. 1C are examples of the last data recording position information 213 in the track.
- “Session management information” is to be read as “sequential recording area information”.
- the last data recording position information 213 in the track is not necessarily at the ECC cluster boundary.
- the amount of data instructed to be recorded is not an integral multiple of the size of the ECC cluster.
- the LRA 213 indicates the address of the last physical sector in which the recording-instructed data has been recorded.
- the data is instructed to be recorded up to the padding data capacity ⁇ CC cluster boundary, following the data data instructed to be recorded.
- data can be recorded for each track. Recording of new data is performed at the beginning of each track, and data is continuously arranged in the track (sequential recording). When data is recorded in that track, the last recorded position in that track is reflected in the last data recording position information 213 in the track.
- the next recording start position in the track can be known by checking the value of the latest data recording position information 213 in the track.
- the next recordable position (hereinafter, NWA) indicates the position of the physical sector next to the physical sector indicated by the last data recording position information 213 in the track.
- NWA next recordable position
- the NWA determines the next ECC cluster of the ECC cluster including the physical sector indicated by the last data recording position information 213 in the track. Indicates the start position.
- NWA N X (Floor (LRA / N) + 1)
- Floor (X) is the largest integer value less than or equal to X.
- NWA indicates the head position of the ECC cluster.
- a track in which data can be recorded is called an open track.
- the track number of the open track is included in the header information 201 in the session management information 200 shown in FIG. 2A (for example, the first open track number 203, the second open track number 204, and the like). .
- a track that is not an open track is called a closed track.
- a track having no unrecorded area or a track for which user power is indicated is a closed track.
- the track number of the closed track is based on the session management information.
- an open track indicates an open SRR.
- a closed track indicates a closed SRR.
- such management is realized using the free area management information 220 shown in FIG. 2C and the disk management information recorded in the disk management information areas 104 and 105.
- FIG. 2C shows the data structure of free area information 220.
- the free area information 220 includes header information 221, management target area information 222, and free area information 223.
- the header information 221 has general information such as an identifier of the free space management information 220.
- the management target area information 222 includes information for specifying an area in the user data area 108 that includes a sector whose unrecorded Z recorded state is managed by the free area management information 220.
- the management target area information 222 includes the start position of the area and the length of the area.
- the free area information 223 includes information indicating whether each ECC cluster included in the area to be managed is unrecorded or recorded. For example, one bit of data is assigned to each ECC cluster, and if the corresponding ECC cluster is not recorded, for example, “0” is set, and if it is recorded, for example, “1” is set. It is possible to manage the availability of ECC clusters.
- the disk management information recorded in the disk management information area 104 includes the disk structure information 1100 shown in FIG.
- the disc structure information 1100 includes final data recording position information 1107.
- the last data recording position information 1107 includes a physical address indicating a position where data is last recorded in the user data area 108.
- the disk structure information 1100 includes general information 1101 on the entire disk structure information 1100 and replacement management information list position information 1102 indicating position information in the disk management information areas 104 and 105 of the latest replacement management information list 1000.
- User area start position information 1103 indicating the start position of the user area 108
- user area end position information 1104 indicating the end position of the user area 108
- disk management information area information 1107 b inner circumference replacement area 106
- outer circumference It further includes replacement area information 1105 indicating the capacity of the replacement area 107 and an area available for replacement, and replacement area management information 1108.
- the disk management information area information 1107b By using the disk management information area information 1107b, it is possible to change the capacity of the disk management information area for each information recording medium. Further, by using the disk management information area information 1107b, it is possible to change the capacity of the temporary disk management information area in the inner circumference replacement area 106 and the outer circumference replacement area 107. [0138] By using the replacement area information 1105, the capacity of the replacement area can be changed for each information recording medium. For example, the capacity of the inner spare area 106 and the outer spare area 107 can be designated as 0.
- the replacement area management information 1108 includes next available position information indicating the next available position in the inner circumference replacement area 106 and the outer circumference replacement area 107.
- each spare area as in the case of the track, the data is sequentially recorded.
- the next available position information in each spare area performs the same function as the NWA in the track, and new data is recorded in each spare area sequentially from the position indicated by the next available position information. .
- the disk structure information 1100 includes session management information position information 1109 indicating position information in the disk management information area 104 and 105 of the latest session management information 200, and disk management information of the latest free area management information 220.
- Free area management information position information 1110 indicating position information in the areas 104 and 105 is further included.
- either the session management information 200 or the free area management information 220 it is possible to manage the availability of physical sectors on the information recording medium 100. Therefore, either the session management information 200 or the free space management information 220 may be selected and used depending on the application. Alternatively, both may be used simultaneously. Such information on the free space management method is included in the recording type information 1106 of the disc structure information 1100.
- the disc management information area 105 records a copy of the disc management information recorded in the disc management information area 104 and updates the disc management information and the like in order to improve the reliability of the information recording medium 100.
- the extended area since the extended area is used in a case where it cannot be stored in the disk management information area 104, the detailed description will be omitted. The same applies to temporary disc management information and the like recorded in the spare area.
- management of user data recorded on user data area 108 is performed by a file system.
- the space managed by the file system is called a volume space 109.
- LSN sector number
- descriptors, pointers, metadata partitions, metadata files, and the like recorded on the information recording medium 100 as a volume Z file structure constituting a file system are particularly detailed. Unless otherwise stated, it shall have the data structure specified in the ISOZIEC13346 standard or UDF (Universal Disk Format) standard. Of course, other file systems can be used.
- the information recording medium 100 shown in FIGS. 1A to 1C has been described as having one recording layer, an information recording medium having two or more recording layers may exist.
- FIG. 4 shows a data structure of an information recording medium 100b having two recording layers.
- L0 indicates the first layer
- L1 indicates the second layer.
- Each of the first layer and the second layer has substantially the same structure as the information recording medium 100. That is, the lead-in area 101 is provided on the innermost circumference of the first layer, and the lead-out area 103a is provided on the innermost circumference of the second layer. Further, an outer peripheral region 103b is provided on the outermost periphery of the first layer, and an outer peripheral region 103c is provided on the outermost periphery of the second layer.
- the lead-in area 101, the outer peripheral area 103b, the lead-out area 104a, and the outer peripheral area 103c are respectively
- the disk management information area 104, 105, 104a, 105a is included.
- replacement areas 106, 106a, 107, and 107a are provided.
- the capacity of each spare area can be changed for each information recording medium as described above. It is also possible to provide an additional temporary disk management information area in each spare area.
- the user data areas 108 and 108a are treated as logically one volume space having continuous logical addresses.
- an information recording medium having a plurality of recording layers As described above, it is possible to logically treat an information recording medium having a plurality of recording layers as an information recording medium having one recording layer.
- an information recording medium having one recording layer will be described, but those descriptions can also be applied to an information recording medium having a plurality of recording layers. Therefore, only when there is a particular need for explanation, an explanation on an information recording medium having a plurality of recording layers will be made as appropriate.
- the replacement information includes replacement source position information indicating the position of a defective cluster (defective cluster) on the information recording medium, and replacement destination position information indicating the position of a replacement cluster that replaces the defective cluster.
- a replacement management information list (or a change list) that contains a replacement management information (or a shift list entry) that includes!
- the present invention makes it possible to record an alternative cluster in a user data area.
- the present invention realizes pseudo overwrite recording on a write-once information recording medium using replacement information.
- the data area 102 includes an inner spare area 106, a user data area 108, and an outer spare area 107.
- At least a part of the inner spare area 106 and the outer spare area 107 is used as an area for performing replacement recording of data recorded on the user data area 108.
- a defective cluster exists on the user data area 108
- at least a part of the inner replacement area 106 and the outer replacement area 107 is recorded as a replacement cluster that replaces the defective cluster. Used as an area.
- At least a part of the inner spare area 106 and the outer spare area 107 can be used as an area for recording updated data in pseudo overwrite recording described later.
- the replacement recording in which the replacement information and the replacement area are combined is performed together with the verification processing.
- the verifying process is a process of reproducing the data immediately after recording the data, comparing the recorded data with the reproduced data, and examining whether the data is correctly recorded. .
- Such a series of processing is called verify-after-write processing.
- This alternative cluster is recorded in the inner spare area 106 (or the outer spare area 107) or the user data area 108.
- Pseudo overwrite recording changes the apparent logical address where data is recorded. This is a method of mapping the physical address where data is actually recorded to another location.
- the substitute cluster in the pseudo overwrite recording is recorded in the spare area or the user data area.
- a replacement management information list 1000 shown in FIG. 5A is used as replacement information for performing such mapping.
- FIG. 5A shows a data structure of a replacement management information list 1000 which is replacement information of the present invention.
- the replacement management information list 1000 is used to match the position of the defective cluster with the position of the replacement cluster.
- the replacement management information list 1000 includes header information 1001 and a plurality of replacement management information 1010 (replacement management information # 1, # 2, # 3,).
- the header information 1001 includes the number of replacement management information items included in the replacement management information list 1000.
- the replacement management information includes information indicating the mapping.
- FIG. 5B shows the data structure of replacement management information 1010.
- the replacement management information 1010 includes state information 1011, replacement source location information 1012, and replacement destination location information 1013.
- State information 1011 includes state information related to the mapping. For example, the types and attributes of the replacement management information 1010, the validity of the replacement source location information 1012 and the replacement destination location information 1013
- the replacement source location information 1012 indicates the location of replacement source information (for example, a defective cluster).
- the replacement destination position information 1013 indicates the position of replacement destination information (for example, an alternative cluster).
- the position of the ECC cluster before overwriting is indicated by the replacement source position information 1012, and the position of the ECC cluster after overwriting is indicated by the replacement destination position information 1013.
- the mapping is performed by indicating.
- the replacement source location information 1012 and the replacement destination location information 1013 registered in the replacement management information 1010 may be indicated using the physical address (eg, PSN) of the first sector of the corresponding ECC cluster. .
- PSN physical address
- the replacement cluster is recorded in the replacement area. Therefore, the location information of the ECC cluster in the replacement area is always set in the replacement location information 1013.
- the substitute cluster is not limited to the replacement area, and can be recorded also in the user data area. Therefore, information indicating the position of the ECC cluster in the replacement area or information indicating the position of the ECC cluster in the user data area can be set in the replacement destination position information 1013.
- the replacement destination position information 1013 can point to the ECC cluster recorded in one of the two areas.
- the status information 1011 may be provided with the determination information.
- FIG. 6 shows a configuration of an information recording / reproducing device 300 according to the embodiment of the present invention.
- the information recording / reproducing device 300 includes a host device 305 and a drive device 310.
- the host device 305 can be, for example, a computer system or a personal computer.
- the drive device 310 can be any of a recording device, a reproducing device, and a recording and reproducing device.
- the entire information recording / reproducing device 300 may be called a recording device, a reproducing device, or a recording / reproducing device.
- the host device 305 includes a system control unit 301 and a memory circuit 302.
- the host device 305 may further include a magnetic disk device 304 such as a hard disk drive.
- the components in the host device 305 are interconnected via the IZO bus 303.
- the system control unit 301 can be realized by, for example, a microphone processor including a system control program and an operation memory.
- the system control unit 301 records the file system volume structure Z file structure 'playback', metadata partition Z file structure recording 'playback', file recording 'playback, lead-in Z lead-out area recording
- the memory circuit 302 is used for a volume structure, a file structure, a metadata partition Z-file structure, file calculation, temporary storage, and the like.
- the drive device 310 includes a drive control unit 311, a memory circuit 312, and a recording / reproducing unit 314.
- the components in the drive device 310 are interconnected via an internal bus 313.
- the drive control unit 311 can be realized by, for example, a microphone processor including a drive control program and an operation memory.
- the drive control unit 311 controls and calculates processes such as recording / reproducing, pseudo-overwrite recording / reproducing of the disc management information area and the spare area.
- the system control unit 301 and the drive control unit 311 shown in Fig. 6 may be realized by a semiconductor integrated circuit such as an LSI, or may include a general-purpose processor and a memory (for example, a ROM). It may be realized.
- a program that can be executed by a computer (for example, a general-purpose processor) is stored in a memory (for example, ROM).
- This program shows the above-described and later-described reproduction processing and recording processing of the present invention, and a computer (for example, a general-purpose processor) executes the reproduction processing and recording processing of the present invention according to this program.
- the memory circuit 312 is used for calculating and temporarily storing data relating to the disk management information area and the spare area and the data transferred to the drive device 310.
- Track # 1 401, track # 2 402, and track # 3 403 are allocated to user data area 108.
- the volume space 109 is allocated to the user data area 108.
- a volume structure area 410, a physical partition 420, and a volume structure area 411 are allocated.
- the physical partition 420 includes a metadata partition 430 defined by UDF standard version 2.5 or a later version.
- a metadata file 440 is recorded.
- description of a metadata mirror file that is a copy of the metadata file 440 is omitted.
- a metadata mirror file may be recorded.
- FE metadata file 441 which is a file entry (FE) indicating the recording position of the metadata file 440 in the physical partition 420 is recorded!
- File structure information such as the FE indicating the recording position and capacity of the user data file and the directory file are all located in the metadata partition 430, that is, the metadata file 440.
- the free space management in the metadata partition 430 may be performed by a metadata bitmap (not shown) as specified in UDF standard version 2.5 !.
- the free space in the metadata partition 430 is left unrecorded, and the free space in the metadata partition 430 is managed by the LRA 405 of track # 1.
- the method of allocating tracks is not limited to that shown in Fig. 7, and for example, more tracks may be allocated. Also, the last track of the user data area may be set to a state where a new track can be added, and the track may be added at a necessary time.
- a plurality of logical addresses and a plurality of physical addresses are assigned to the user data area 108 of the information recording medium 100, and the correspondence between the plurality of logical addresses and the plurality of physical addresses is different. , Is determined in advance.
- Each of the plurality of logical addresses is represented by, for example, a logical sector number (LSN) or a logical block address (LBA).
- LSN logical sector number
- LBA logical block address
- Each of the plurality of physical addresses is represented by, for example, a physical sector number (PSN) or a physical block address (PBA). It is also assumed that at least one track is allocated to the user data area 108.
- PSN physical sector number
- PBA physical block address
- Such data recording preparation processing is executed, for example, when the information recording medium 100 is loaded on the drive device 310.
- the drive control unit 311 reads the disk management information area 104 (or the disk management information area 105) of the information recording medium 100 that has the latest information.
- an initial logical address-physical address mapping indicating a correspondence relationship between a plurality of logical addresses and a plurality of physical addresses allocated to the user data area 108 is determined.
- the user data area start position information 1103, the user data area end position information 1104, the replacement area information 1105, and the like are acquired.
- the drive control unit 311 performs the following operations according to the initial logical address-physical address mapping.
- the drive control section 311 acquires track management information included in the disk management information.
- Step S 102 The drive control section 311 receives a recording instruction from the host device 305.
- the recording instruction includes a logical address indicating a position where data is to be recorded.
- This logical address is represented by, for example, a logical sector number (LSN) or a logical block address (LBA).
- LSN logical sector number
- LBA logical block address
- the recording instruction may include a single logical address indicating a position where a single data is to be recorded, or may indicate a plurality of positions where a plurality of data is to be recorded. Including multiple logical addresses.
- the logical address included in the recording instruction is determined by the host device 305 based on, for example, a logical address (ie, a logical NWA) indicating a position where data can be recorded next in a specific track.
- a logical address ie, a logical NWA
- the logical NWA is output from the drive device 310 to the host device 305, for example, in response to a request from the host device 305 to the drive device 310.
- the logical NWA is obtained by converting the above (Equation 1) determined NWA according to the initial logical address / physical address mapping. Such a conversion is performed by the drive control unit 311. The procedure for determining the NWA and the logical NWA will be described in detail in a second embodiment described later.
- the system control unit 301 of the host device 305 generates and updates necessary file system information when recording a data file (File-a). For example, the system control unit 301 generates the FE (File-a) for the data file (File-a) in the memory circuit 302 and updates the ROOT directory that is the parent directory of the data file (File-a). .
- the FE (File-a) and the updated ROOT directory for such a generated data file (File-a) are output from the host device 305 to the drive device 310 by outputting a recording instruction to the information recording medium. 100 is recorded and the latest file system information is reflected.
- the host device 305 makes an inquiry to the drive device 310 using a predetermined command as to whether or not an unrecorded area for performing replacement recording remains, if necessary.
- the instruction output from the host device 305 to the drive device 310 may be a standardized command such as a SCSI multimedia command.
- the request of the logical NWA and the recording instruction are respectively READ TRACK INF
- It may be an ORMATION command or a WRITE command.
- Step S103 The drive control section 311 converts a logical address included in the recording instruction received in step S102 into a physical address according to the initial logical address-physical address mapping.
- Step S104 The drive control section 311 matches the logical address included in the recording instruction. Based on the corresponding physical address and the track management information 210 (FIG. 2B) included in the disk management information, one of the at least one track (open track) allocated to the user data area 108 is determined.
- the drive control unit 311 Based on the LRA 213 of the determined track, the drive control unit 311 generates a physical address (ie, a physical address indicating the next recordable position in the determined track).
- NWA NWA
- This NWA is, for example, the next recordable address determined according to the above (Equation 1).
- the determination of the NWA may be made in step S104, but may be made in other steps. For example, it may be performed in advance in the data recording preparation process described above.
- Step S105 The drive control section 311 determines whether the physical address corresponding to the logical address included in the recording instruction is smaller than NWA.
- the recording instruction is a recording instruction for a recorded area in the user data area 108. It is determined. That is, it is determined that the data recording instructed to be recorded is the pseudo-overwrite recording. In this case, the process proceeds to step S106. Otherwise, the process proceeds to step S108.
- Step S106 The drive control section 311 determines data to be recorded. If the unit force of data recording on the information recording medium 100 is a CC cluster, the drive control unit 311 determines data specified by the recording instruction as data to be recorded. For example, if the recording position of the data specified by the recording instruction and the capacity match the boundary of the CC cluster, the entire ECC cluster is rewritten. Therefore, the data specified by the recording instruction is determined as the data to be recorded.
- the drive control unit 311 executes a read 'modify' write process described later. In this case, the drive control unit 311 determines the data in the ECC cluster unit obtained in the process of the read 'modify' write process as the data to be recorded. (Step S107)
- the drive control section 311 determines the recording position of the data to be recorded determined in step S106. Specifically, the drive control unit 311 determines a specific position in the user data area 108 other than the position indicated by the physical address corresponding to the logical address included in the recording instruction, in step S106. Is determined as the recording position of the data to be recorded.
- the specific position may be the NWA in the track determined in step S104.
- the specific position may be an NWA in an open track different from the track determined in step S104.
- the NWA in the open track is closest to the position indicated by the physical address corresponding to the logical address included in the recording instruction and indicates the position.
- Step S108 The drive control section 311 determines whether or not the physical address corresponding to the logical address included in the recording instruction is NWA or the like. If the physical address corresponding to the logical address included in the recording instruction is determined to be equal to the NWA, the recording instruction is determined to be the recording instruction for the location indicated by the NWA. That is, it is determined that the data recording instructed to be recorded is additional recording (new recording). In this case, the process proceeds to step S109. Otherwise, the process proceeds to step S111.
- Step S 109 The drive control section 311 determines data to be recorded. Specifically, the drive control unit 311 determines the data specified by the recording instruction as data to be recorded.
- the drive control unit 311 determines whether or not the terminal force of the data specified by the recording instruction matches the CC cluster boundary. If they do not match, padding data (for example, all OOh data) is inserted, and the end force of the data is matched with the CC cluster boundary, and data to be recorded is determined.
- padding data for example, all OOh data
- Step S110 The drive control section 311 determines the recording position of the data to be recorded determined in step S109. Specifically, the drive control unit 311 determines the position (that is, the position indicated by the physical address corresponding to the logical address included in the recording instruction). That is, the position indicated by the NWA) is determined as the recording position of the data to be recorded determined in step S109.
- Step S111 The drive control section 311 performs error processing.
- Step S 112 The drive control section 311 performs a recording process on the determined recording position.
- step S105 If the determination in step S105 is "Yes", the drive control unit 311 records the data to be recorded determined in step S106 in the recording position determined in step S107.
- the recording / reproducing unit 314 is controlled during the operation.
- Step S108 If the determination in Step S108 is "Yes", the drive control unit 311 records the data to be recorded determined in Step S109 at the recording position determined in Step S110.
- the recording / reproducing unit 314 is controlled at the same time.
- the drive control unit 311 determines whether or not the recording of the data has succeeded by performing a verify process on the recorded data. If the data has been successfully recorded, the process proceeds to step S113.
- an unrecorded area in a spare area such as the inner spare area 106 and the user data area 108 is assigned as a substitute cluster, and is assigned to the substitute cluster.
- the data is recorded.
- step S106 and step S112 described above may be realized by a read-modify-write process (hereinafter, an RMW process).
- RMW process read-modify-write process
- the drive control unit 311 reproduces data recorded in the ECC cluster including the physical sector at the position indicated by the physical address corresponding to the logical address included in the recording instruction. Then, it controls the recording / reproducing unit 314 and stores the data reproduced from the ECC cluster in the memory circuit 312 (read processing).
- the drive control unit 311 refers to the replacement management information list 1000 and controls the recording / reproducing unit 314 so as to reproduce data recorded in the replacement ECC cluster as necessary.
- the replacement management information list 1000 controls the recording / reproducing unit 314 so as to reproduce data recorded in the replacement ECC cluster as necessary.
- the drive control unit 311 transmits data recorded in the physical sector at the position indicated by the physical address corresponding to the logical address included in the recording instruction, of the data whose ECC cluster power has also been reproduced. Is replaced with the data specified by the recording instruction (modify processing). As a result, updated ECC cluster data is obtained.
- the drive control unit 311 performs a read process and a modify process in step S106.
- FIG. 8B shows steps performed when the read processing and the modify processing are performed in step S106 shown in FIG. 8A. Each step shown in FIG. 8B is executed by drive control unit 311 of drive device 310.
- Step S 151 The drive control unit 311 determines whether or not the ECC cluster including the position specified by the recording instruction has already been replaced with the substitute cluster. Such a determination is made, for example, by searching the replacement management information list 1000.
- step S152A If the replacement management information 1010 indicating the position specified by the recording instruction as the replacement source is found, it is determined that the replacement cluster has already been replaced, and the process proceeds to step S152A. Otherwise, processing proceeds to step 152B.
- step S151 The determination result of step S151 is held as the value of an internal variable, and when necessary in another step, the ECC including the position specified by the recording instruction is referred to by referring to the value of the internal variable. It may be determined whether or not a cluster has already been replaced with an alternative cluster. This can prevent the same process from being repeatedly executed. For example, if the judgment result power of step S151 is “Yes”, “1” is held as the value of the internal variable, and if the judgment result of step S151 is “No”, You may keep "0" as the value.
- Step S152A The drive control section 311 determines whether or not the RMW processing is necessary. For example, if the position of the data specified by the recording instruction and the size force match the CC cluster boundary, the drive control unit 311 determines that the RMW processing is not necessary, and determines the position of the data specified by the recording instruction. If the size force does not match the CC cluster boundary, the drive control unit 311 determines that RMW processing is required. [0255] If it is determined that the RMW process is necessary, the process proceeds to step S153; otherwise, the process proceeds to step S157.
- step S152A the determination result of step S152A is held as the value of an internal variable, and when necessary in another step, the value of the internal variable is referred to, thereby performing RMW processing. You may decide whether or not it is necessary!
- Step S152B The drive control section 311 determines whether or not the RMW processing is necessary. The process in step S152B is the same as the process in step S152A.
- step S154 If it is determined that the RMW process is necessary, the process proceeds to step S154; otherwise, the process proceeds to step S157.
- the drive control section 311 includes the position specified by the recording instruction.
- the recording / reproducing unit 314 is controlled to reproduce the data recorded in the substitute cluster indicated by the replacement management information 1010 found in step S151, and the reproduced data is stored in the memory circuit 312. .
- the drive control section 311 includes the position specified by the recording instruction.
- the recording / reproducing unit 314 is controlled so as to reproduce the data recorded in the ECC cluster, and the reproduced data is stored in the memory circuit 312.
- Step S155 The drive control section 311 generates corrected data by replacing the reproduced data with the data specified by the recording instruction.
- Step S156 The drive control section 311 determines the corrected data as data to be recorded on the information recording medium 100.
- Step S157 The drive control section 311 determines data specified by the recording instruction as data to be recorded on the information recording medium 100.
- the drive control unit 311 controls the recording / reproducing unit 314 so as to record the updated ECC cluster data obtained in the modifying process at the position of the original ECC cluster (write process). .
- the drive control unit 311 performs a write process in step S112.
- the information recording medium is a write-once medium, it is actually The original ECC cluster location cannot be recorded! / ,.
- an unrecorded area in any of the replacement area such as the inner circumference replacement area 106 and the user data area 108 is allocated as a substitute cluster, and the updated data is recorded in the substitute cluster.
- the drive control unit 311 determines whether or not the recording of the data is successful by performing a verify process on the recorded data. If the data has been successfully recorded, the process proceeds to step S113.
- an unrecorded area in a spare area such as the inner peripheral spare area 106 or any of the user data areas 108 is allocated as a further alternative cluster.
- the data is recorded in an alternative cluster.
- Step S 113 The drive control section 311 generates replacement management information 1010 in accordance with the processing in step S 112, and stores the replacement management information in the memory circuit 312. For example, in step S112, the drive control unit 311 stores the data in a specific position other than the position indicated by the physical address corresponding to the logical address included in the recording instruction, and in a specific position in the user data area 108. When controlling the recording / reproducing unit 314 to perform recording (performing pseudo overwriting), the drive control unit 311 sets the physical address corresponding to the logical address included in the recording instruction to the physical address indicating the specific position. The replacement management information 1010 to be mapped to the address is generated.
- the replacement management information 1010 By searching the existing replacement management information list 1000, the replacement management information 1010 having the same replacement source position information 1012 as the physical address corresponding to the logical address included in the recording instruction is converted to the existing replacement management information. Try to determine whether or not the force found in the list 1000.
- the drive control unit 311 updates the replacement management information 1010 so that the physical address indicating the specific position is set as new replacement destination position information 1013. [0275] If the power is not found, the drive control unit 311 generates new replacement management information 1010 and adds the new replacement management information 1010 to the replacement management information list 1000.
- the drive control section 311 sorts the replacement management information list 1000. For example, the drive control unit 311 rearranges the replacement management information list 1000 for the status information 1011 and then rearranges the replacement management information list 1000 for the physical address of the replacement source location information 1012. Yo!
- Step S114 The drive control section 311 updates the disk management information to reflect the above-described recording operation. For example, the drive control unit 311 updates the final data recording position information 1107. Further, the drive control unit 311 updates the LRA 213 in the track management information 210 corresponding to the track on which the data is recorded to reflect the latest recording state.
- the drive control unit 311 generates new disk management information including updated information such as a new replacement management information list 1000 and track management information 210. Also, in order to indicate the latest recording position of the new replacement management information list 1000 and the track management information 210 on the information recording medium 100, the replacement management information list position information 1102 and the session management information included in the new disk management information are indicated. Set the location information 1109.
- Drive control section 311 controls recording / reproducing section 314 so as to record new disc management information in a predetermined area (eg, temporary disc management information area) on information recording medium 100.
- a predetermined area eg, temporary disc management information area
- the disk management information is updated to the latest state.
- the drive device 310 may notify the host device 305 of the result of the above-described recording operation.
- the result of the recording operation is, for example, information indicating that the data recording has succeeded or that the data recording has failed.
- Such a notification can be transmitted to the host device 305 at a predetermined timing. For example, such a notification may be transmitted to the host device 305 at the end of step S108 or when an error occurs at step S112. Alternatively, such a notification may be transmitted to the host device 305 before the data recording is actually completed. For example, drive The device 310 may receive the recording instruction from the host device 305, and transmit a notification indicating the end of recording to the host device 305 when the recording instruction can be correctly interpreted.
- an unrecorded area may be searched in a direction in which the positional force PSN of the replacement ECC cluster increases!
- the unrecorded area is allocated as an alternative crust.
- an unrecorded area may be searched first in a track including a replacement source cluster, and then an unrecorded area in each track may be searched in order in a direction of increasing the tracker PSN.
- a predetermined position on the inner peripheral side of the information recording medium 100 (for example, the inner spare area) (The head of 106, the head of the user data area 108, or a position separated by a predetermined distance from the head of the user data area 108)
- the unrecorded area may be searched such that the PSN increases.
- steps S105 and S108 of the data recording procedure the physical address corresponding to the logical address included in the recording instruction is compared with the NWA to determine whether the data recording is a pseudo-overwrite recording. It was decided whether it was postscript.
- the replacement recording using the user data area described in the present invention is applicable to a rewritable optical disk.
- a rewritable optical disc more information is needed to determine whether the data recording is overwrite recording (or new recording). Complicated processing procedures are required. This is because, in the case of a rewritable optical disk, any position on the optical disk can be randomly rewritten.
- the drive device tries to manage the free space on the rewritable optical disk as in the above-described embodiment, for example, as described in the background art, for example, the rewritable optical disk may be written using SDL. It is necessary to manage the replacement management information corresponding to all the above ECC clusters. Then, whether the data recording at a certain location in the user data area on a certain rewritable optical disc is overwriting recording or new recording is searched, for example, by searching the entire replacement management information list 1000, It is necessary to determine whether. Similarly, it is necessary to search the entire replacement management information list 1000 in order to know whether or not an ECC cluster is already used as a substitute cluster. The amount of such processing increases in accordance with the capacity of the replacement management information list 1 000, and the capacity is further increased!
- the information recording medium is a write-once type information recording and is a sequential recording, all the areas having an address value smaller than the NWA in a certain track may be already recorded. Guaranteed.
- the number of open tracks depends on the structure of the file system. It is not affected even if the disk capacity increases, while the free space management information for random recording
- the capacity increases and the processing load increases as the capacity of the optical disk increases.
- the NWA is determined according to LRA213 included in the latest track management information 210 and (Equation 1). is there.
- FIG. 9 shows a data structure on information recording medium 100 after a data file has been recorded by such a recording procedure.
- a data file (File-a) 460 will be described as an example of the data file.
- the data file (File-a) 460 uses the defect cluster #
- disk management information including replacement management information indicating replacement of defective cluster # 1 with replacement cluster # 1 and replacement management information indicating replacement of defective cluster # 2 with replacement cluster # 2. Is recorded in the disc management information area 104.
- the portions of update cluster # 2 and update cluster # 4 correspond to the portions updated by the pseudo-overwrite recording.
- the new data updated by the pseudo-overwrite recording is recorded in alternate cluster # 2 and alternate cluster # 4, respectively, which are assigned update cluster # 2 and update cluster # 4 as alternatives, and the corresponding replacement information is recorded on disk. It shall be recorded in the management information area 104.
- the alternative cluster # 2 is allocated to the replacement area 106, and the alternative cluster # 4 is allocated to the user data area 108.
- the file playback processing will be described with reference to the flowchart in FIG.
- the operation of reproducing the data file (File-a) 460 shown in FIG. 9 will be described as an example.
- Step S201 Prior to data reproduction, the drive control unit 311 executes a preparation process for data reproduction. Such preparation processing for data reproduction is executed, for example, when the information recording medium 100 is loaded into the drive device 310. For example, the drive control unit 311 reads out the disk management information area 104 (or the disk management information area 105) of the information recording medium 100.
- the drive control unit 311 transmits a plurality of logical keys assigned to the user data area 108. Initial logical address indicating the correspondence between the address and the plurality of physical addresses. To determine the physical address mapping, the user data area start position information is determined from the disk management information.
- the drive control unit 311 sets the initial logical address-physical address mapping
- Step S202 First, the system control unit 301 issues a playback instruction to the drive device 310.
- AVDP is a data structure defined by the UDF standard and serving as a starting point of file system information, and is recorded in the volume structure area 410 and the volume structure area 411.
- Step S203 the system control unit 301 acquires the position information of the main volume descriptor sequence 410A recorded in the volume structure area 410 from the AVDP.
- the system control unit 301 further issues an instruction to the drive device 310 to reproduce the main volume structure 410A.
- the system control unit 301 further reads the data structure sequentially from the reproduced main volume descriptor sequence 410A, and acquires the position information (LSN) of the FE (metadata file) 441.
- Step S204 the system control unit 301 reproduces the file structure.
- the system control unit 301 issues a reproduction instruction to the drive device 310 based on the acquired position information (LSN) of the FE (metadata file) 441, and To play.
- the system control unit 301 obtains the position information of the metadata file 440 from the acquired information of the FE (metadata file) 441, and becomes able to access the metadata file 440.
- Step S205 reproduction is performed in the order of FSD433, FE (ROOT) 442, FE (File-a) 443, and data file (File-a) 460 according to the normal UDF standard reproduction procedure ( The description of the reproduction of the directory file is omitted).
- the host device 305 transmits the data to the drive device 310 again.
- a raw instruction is output.
- the drive control unit 311 of the drive device 310 receives a reproduction instruction from the host device 305, and executes a reproduction process according to the reproduction instruction.
- the reproduction instruction includes a logical address indicating a position where data is to be reproduced.
- the logical address is represented, for example, by a logical sector number (LSN).
- the logical address may be represented by a logical block address (LBA).
- the reproduction instruction is, for example, a READ command.
- the drive control unit 311 converts a logical address included in the playback instruction into a physical address according to the initial logical address / physical address mapping (for example, see FIG. 12).
- the drive control unit 311 searches the replacement management information list 1000 to obtain replacement management information 1010 having the same replacement source position information 1012 as the physical address corresponding to the logical address included in the reproduction instruction. Determines whether or not the power found in the replacement management information list 1000.
- the drive control unit 311 refers to the replacement location information 1013 of the replacement management information 1010, and reproduces the positional force data indicated by the replacement location information 1013.
- the recording / reproducing unit 314 is controlled so as to perform the operation.
- the drive control unit 311 controls the recording and reproducing unit 314 to reproduce the position force data indicated by the physical address corresponding to the logical address included in the reproduction instruction. .
- the data reproduced in this manner is returned to the host device 305.
- FIG. 11 shows the data structure of the replacement management information 1010B.
- Replacement management information 1010B
- FIG. 15 shows a different embodiment of the replacement management information 1010 shown in FIG. 5B.
- the replacement management information 1010B in FIG. 11 includes the following three pieces of information as the state information 1011.
- Flagl As shown in FIG. 11, these three pieces of information are Flagl, Flag2, and Flag3.
- Flagl is information for classifying the replacement management information 1010B, and includes information indicating whether the replacement information is for replacement recording or indicates a defective cluster.
- Flag2 is information on the recording position of the replacement cluster managed by the replacement management information 1010B, and includes information indicating whether the replacement cluster is in the replacement area, there is no replacement destination, or in the user data area.
- Flag3 is information on the number of clusters managed by the replacement management information 1010B, and includes information indicating whether the replacement information corresponds to a single cluster or continuous multiple clusters. In the case of supporting a plurality of continuous clusters, Flag3 further includes information indicating whether it corresponds to the start position or the end position of the continuous area.
- the type of the replacement management information will be represented using the symbols in the rightmost column of Fig. 11 as necessary.
- FIG. 12 is an exemplary diagram of a data structure of a physical address space and a logical address space on the information recording medium 100 according to the present invention.
- FIG. 12 shows a logical sector number (LSN), which is a logical address indicating a position on the information recording medium 100 as viewed from the host device 305, and an actual position on the information recording medium 100. It also shows the correspondence in the initial state with the physical sector number (PSN) that is the physical address shown. Such a correspondence is referred to as an initial logical address-physical address mapping (indicated by a dashed arrow in the figure, the same applies hereinafter).
- LSN logical sector number
- FIG. 12 One row shown in Fig. 12 corresponds to one ECC cluster.
- the physical address (PSN) and the logical address (LSN) assigned to the physical address are shown on the same line.
- one ECC cluster includes 32 sectors, but another configuration may be used.
- the PSN is assigned to the inner spare area 106, the outer spare area 107, and the user data area 108.
- the LRA 500 points to the beginning of the user data area 108.
- the LSN is allocated only to the user data area 108 (or the volume space 109).
- the host device 305 uses the LSN to specify a specific logical sector on the information recording medium 100, and instructs recording and reproduction.
- the drive device 310 converts the LSN received from the host device 305 into a PSN according to the initial logical address-physical address mapping, and according to the obtained PSN, a physical sector or EC.
- the replacement management information 1010 is used based on the initial logical address / physical address mapping when a logical address / physical address mapping different from this correspondence is required.
- PSN and LSN in FIG. 12 are merely examples for explanation, and actual values differ according to the configuration and capacity of information recording medium 100.
- the capacities of the disk management information and the spare area are variable, but these capacities are determined at the time of a format process performed according to an instruction from the host device 305 or the like. After the format processing, the start and end positions of the user data area 108 do not change.
- the initial logical address physical address mapping is based on information of the disk structure information 1100 included in the disk management information (more specifically, user data area start position information 1103, user data area end position information 1104, replacement area information 1105) can be uniquely determined by a predetermined calculation or the like.
- the drive device 310 verifies the recorded data. Verification here Assume success.
- the replacement management information 511 is generated by the drive device 310.
- the status information 1011 of the replacement management information 511 is set according to FIG.
- the replacement management information 511 corresponds to the solid arrow in FIG. 13A.
- the starting point of the arrow indicates the replacement source, and the tip of the arrow indicates the replacement destination (the same applies hereinafter).
- Replacement management information 512 is generated corresponding to the replacement record.
- PSN 1032 is set as the replacement source of the replacement management information 512, and PSN is set as the replacement destination of the replacement management information 512.
- the replacement management information list 1000A uses the replacement management information (1).
- Figs. 14A and 14B are diagrams for explaining a state when the replacement management information (4) and (7) are used.
- the replacement management information 514 is generated.
- PSN 1260 is a defective cluster having no replacement destination, and corresponding replacement management information 515 is generated.
- the replacement management information 514A is generated.
- the replacement management information 514 becomes unnecessary and is deleted from the replacement management information list 1000.
- the LRA is updated to the position of 500B.
- the Flags in the status information 1011 are rearranged, and then the PSN values of the replacement source location information 1012 are rearranged. .
- FIGS. 15A and 15B are diagrams for explaining a state when the replacement management information (5) and (6) are used.
- Each replacement management information indicates the head PSN of the ECC cluster corresponding to the start position of the replacement recording and the head PSN of the ECC cluster corresponding to the end position.
- replacement management information 516A is generated as information indicating the start point of the replacement
- replacement management information 517A is generated as information indicating the end point of the replacement recording.
- FIGS. 15A and 16A all the alternative recording destinations are set in the user data area 108.
- the alternative recording destination may be set in the replacement area 106.
- the replacement management information (2), (3) is used.
- the updated replacement management information list is recorded in the disk management information area.
- the drive control unit 311 executes preparation processing for data reproduction.
- the preparation process for such data reproduction is, for example, the same as step S201 described above.
- the drive device 310 sets the PS as the replacement source from the latest replacement management information list 1000.
- the user data area can be used as a replacement destination without waste.
- FIG. 18 shows a DFL entry 2010 which is a different configuration example of the replacement management information similar to the replacement management information 1010 and the replacement management information 1010B described above.
- the status 1 2011A and status 2 2011B included in the DFL entry 2010, the defective cluster head PSN 2012, and the alternative cluster head PSN 2013 are the status information 1011, the replacement source location information 1012, and the replacement source location information 1013, respectively, as described above. Is similar to
- the defective cluster head PSN 2012 and the substitute cluster head PSN 2013 use the physical address (for example, PSN) of the head sector of the corresponding ECC cluster. May be shown.
- PSN physical address
- it is also the power to perform mapping in ECC cluster units.
- Status 2 2011B includes at least the same information as Flag3 in the replacement management information 1010B.
- This DFL entry 2010 is applicable to all embodiments.
- step S112 of Fig. 8A the recording to the replacement destination for the pseudo-overwrite recording is performed in step S112 of Fig. 8A, and the process proceeds to step S113.
- Step S301 First, it is determined whether this pseudo overwrite recording is the first overwrite recording power or the second overwrite recording.
- This determination is made, for example, by comparing the latest replacement management information list with the head PSN of the ECC cluster that includes the physical address corresponding to the logical address included in the recording instruction obtained in step S103 of Fig. 8A. DFL entry2 with the value as the value of the defective cluster head PSN2012
- the latest replacement management information list is reproduced from the disk management information area in step S 101 (FIG. 8A), and held in the memory circuit 312.
- step S302 If the corresponding replacement management information (for example, DFL entry2010) is not found in the replacement management information list, the process proceeds to step S302 assuming that this is the first pseudo overwrite recording. move on.
- step S304 If the replacement management information is found in the replacement management information list, the process proceeds to step S304 assuming that this is the second pseudo overwrite recording.
- the determination as to whether the pseudo-overwrite recording is the first overwrite recording power or the second or subsequent overwrite recording may be made in advance in another step. For example, it may be performed in step S106. The determination result at that time may be retained and used in step S301.
- Step S302 In the case of the first replacement recording, the following processing is performed.
- a new DFL entry 2010 is generated on the memory circuit 312 of the drive device 310 by the drive control unit 311.
- Step S303 Next, a value is set to this DFL entry 2010.
- the value of the head PSN of the ECC cluster located at the physical address corresponding to the logical address included in the recording instruction is set for the head PSN 2012 of the defective cluster.
- Step S304 In the case of the second or subsequent replacement recording, the following processing is performed.
- step S305 That is, to update the DFL entry 2010 found in the previous step, the process proceeds to step S305.
- Step S305 First, the status 1 2011A of this DFL entry 2010 is updated to an appropriate value. For example, "0000" is set for a replacement record in which a replacement destination exists.
- the replacement cluster head PSN 2013 is updated to the value of the head PSN of the replacement cluster in which data is actually recorded in the immediately preceding replacement recording. That is, a new replacement destination is set.
- the first PSN2012 of the defective cluster is the second or subsequent replacement record for the same ECC cluster, so that it is sufficient to keep the same value as long as there is no need to change it.
- the status 2 2011B of this DFL entry2010 is updated to an appropriate value. For example, "0000" is set for a single cluster replacement record.
- Step S306 Through the above processing, the replacement management information list is updated. That is, the follow-up of the new DFL entry 2010 or the value of the existing DFL entry 2010 is updated.
- the replacement management information list is rearranged. This sorting is performed, for example, for status 1 2011A. Furthermore, the defect cluster head PSN 2012, status 2 2011B, and the alternative cluster head PSN 2013 are sorted in this order.
- step S113 in Fig. 8A is completed.
- the latest replacement management information obtained here The list is added to the (temporary) disk management information area.
- the replacement management information increases every time replacement recording occurs, and the replacement management information increases. This increases the capacity of the list, which is not preferable for mounting a drive device or the like.
- the replaced cluster was not able to be replaced again, but the pseudo-overwrite recording was performed as in the present embodiment. If so, it may be subject to multiple replacement records. Therefore, the capacity of the replacement management information list may become very large.
- FIG. 19B A processing example of the replacement management information in the data recording procedure will be described in more detail with reference to FIG. 19B.
- Each step shown in FIG. 19B is included in step S113 shown in FIG. 8A.
- the data structure of DFL entry 2010 which is an example of the replacement management information shown in FIG. 18 is referred to.
- step S112 of Fig. 8A the recording to the replacement destination for the pseudo overwrite recording is performed in step S112 of Fig. 8A, and the process proceeds to step S113.
- Step S601 The drive control section 311 determines whether or not the area specified by the recording instruction is a continuous area in the physical address space.
- the drive control unit 311 determines the size of the area in the physical address space based on the recording position specified by the recording instruction and the capacity of data to be recorded specified by the recording instruction. If the size of the area in the physical address space determined in this way is larger than the size of one ECC cluster, the drive control unit 311 determines that the area specified by the recording instruction is in the physical address space. Is determined to be a continuous area.
- step S601 If the determination result in step S601 is "Yes”, the process proceeds to step S602. If the determination result in step S601 is “No”, the process proceeds to step S603.
- Step S602 The drive control section 311 determines whether or not the area where data is actually recorded in step S112 is a continuous area in the physical address space.
- step S112 when the size of the area subjected to the recording process in step S112 is equal to the size of the area specified by the recording instruction, the drive control unit 311 returns to step S112 to actually record the data.
- the determined area is determined to be a continuous area in the physical address space.
- step S602 If the determination result of step S602 is "yes”, the process proceeds to step S604. If the determination result in step S602 is “No”, the process proceeds to step S603.
- Step S603 The drive control section 311 performs, for example, the processing described with reference to FIG. 19A.
- Step S604 The drive control section 311 executes the pseudo-overwrite recording for the first overwrite recording. Force Determines whether this is the second or subsequent overwrite recording.
- Such a determination is made, for example, by searching the latest replacement management information list to determine the first DFL entry2010 (alternatively, the replacement source position information indicating the same area as the continuous area determined in step S601).
- step S605 If the corresponding first DFL entry2010 and second DFL entry2010 are not found in the replacement management information list, the process proceeds to step S605 assuming that this is the first pseudo overwrite recording. .
- step S607 If the corresponding first DFL entry 2010 and second DFL entry 2010 are found in the replacement management information list, the process proceeds to step S607 assuming that this is the second pseudo overwrite recording.
- Step S605 The drive control unit 311 generates a new first DFL entry 2010 and a new second DFL entry 2010, and stores these in the memory circuit 312.
- Step S606 The drive control section 311 sets values in the first and second DFL entries 2010.
- Status 1 2011A of the first DFL entry 2010 is set to "0000" indicating that the replacement record includes a replacement destination.
- the value of the head PSN of the ECC cluster including the start position of the area specified by the recording instruction is set in the head PSN of the defective cluster of the first DFL entry 2010.
- Status 1 2011A of the second DFL entry 2010 is set to "0000" indicating that the replacement record has a replacement destination.
- the value of the head PSN of the ECC cluster including the end position of the area specified by the recording instruction is set. Record The end position of the area specified by the instruction is obtained, for example, from the physical address corresponding to the logical address included in the recording instruction and the data length of the data to be recorded.
- Status 2 2011B of the second DFL entry 2010 is set to "0010" indicating the end position of the continuous area.
- Step S607 The drive control section 311 performs an update process on the first and second DFL entries 2010 found in step S604. Specifically, this updating process is performed by setting values in the first and second DFL entries 2010 in step 608.
- Step S608 The drive control section 311 sets values in the first and second DFL entries 2010.
- the value of the first PSN of the ECC cluster including the start position of the continuous area where data is actually recorded is set. That is, a start position of a new replacement destination area is set.
- the value of the first PSN of the ECC cluster including the end position of the continuous area in which data is actually recorded is set in the replacement cluster first PSN2013 of the second DFL entry2010. That is, the end position of the new replacement destination area is set.
- Step S609 The replacement management information list is updated by the processing described above. That is, new first and second DFL entries 2010 are added to the replacement management information list. Or, the existing values of the first and second DFL entry 2010 in the replacement management information list are updated. Be renewed.
- the replacement management information list is rearranged. This rearrangement is performed, for example, in the order of status 1 2011A of the update management information. Further, the rearrangement is performed in the order of the defective cluster head PSN 2012, status 2 2011B, and the replacement cluster head PSN 2013.
- step S113 in FIG. 8A This is the end of step S113 in FIG. 8A.
- the latest replacement management information list obtained here is added to the (temporary) disk management information area.
- FIG. 20A shows a physical address space and a logical address space on the information recording medium 100, similarly to FIG. 13A and the like.
- data 'AO immediately after the format processing, data 'AO
- the replacement management information list shown in Fig. 20B and corresponding to Fig. 20A does not include the replacement management information, but includes only the header information 1001.
- the DFL entry 2100A shown in Fig. 21B is added to the replacement management information list according to the procedure after step S302 described with reference to Fig. 19A. Is done.
- the DFL entry 2100A is updated and the DFL entry 2100A is updated as shown in FIG. 22B according to the procedure from step S304 described with reference to FIG. 19A. entry2100B. (That is, no DFL entry is added.)
- the DFL entry 2101A is added as shown in Fig. 23B according to the procedure after step S302 described with reference to Fig. 19A.
- the DFL entries 2102A and 2103A follow up as shown in Fig. 24B according to the procedure after step S302 described with reference to Fig. 19A. ! ].
- DFL entry 2102A indicating the beginning and DFL entry 2103A indicating the end position are used
- the drive device 310 of the present invention stores the continuous area 2200 in the user data area 108.
- the pseudo overwrite that replaces the continuous area 2201 inside the first replacement management information (DFL entry 21 02A) that maps the start position of the continuous area 2200 to the start position of the continuous area 2201, and the end position of the continuous area 2200 , And second replacement management information (DFL entry 2103A) to be mapped to the end position of the continuous area 2201.
- logical NWA next recordable position
- the logical NWA is determined by the following procedure.
- the ECC cluster next to the ECC cluster including the physical sector indicated by the LRA is determined.
- This ECC cluster is the next recorded ECC cluster.
- the first physical sector of the recording ECC cluster is the next recordable position, and the next recordable position represented by this physical address is the NWA described above.
- the value of the logical NWA is a value obtained by converting the value of the PSN indicated by this NWA into an LSN according to the initial logical address physical address mapping.
- the feature of the above-described method of determining a logical NWA is that the logical NWA is determined so as to maintain the relationship of the initial logical address and physical address mapping. That is, since the logical NWA is obtained by the initial logical address-physical address mapping after the NWA is determined from the LRA in the track first, the replacement management information 1010B is not necessary for new data recording.
- FIG. 14A there is a case where the host device 305 holds a value for the LRA 501B as a logical NWA, although it corresponds to the actual latest logical NWA power LRA 500B.
- the host device 305 stores the logical NWA corresponding to the latest LRA500B in the drive device 31.
- the host device 305 may hold a value for the LRA501C as a logical NWA.
- the actual latest LRAs are the LRA500C and the LRA500D, respectively. .
- the host device 305 acquires the latest logical NWA before recording new data. It is desirable.
- the host device 305 when the host device 305 instructs recording of new data, for example, immediately before step S102 in FIG. 8A, it outputs a request to acquire the latest logical NWA from the drive device 310.
- the drive device 310 receiving this request returns the logical NWA determined from the LRA and the NWA to the host device 305 according to the above-described procedure.
- the host device 305 that has received the logical NWA issues the next recording instruction based on the value.
- the replacement management information 1010B is not required for recording new data, and the replacement management information 1010B is needed only when replacement recording is performed.
- Such a logical sector is called an unrecorded logical sector, or an unused logical sector, an isolated logical sector, or the like.
- a logical cluster that also has such an unrecorded logical sector capacity is called an unrecorded logical cluster.
- the LSN is allocated to such an unrecorded logical sector as well as other normal logical sectors, and the LSN of the subsequent logical sector remains unchanged. This is a feature of the NWA determination processing procedure in the embodiment.
- pseudo overwrite recording is performed as in the above embodiment. For example, the following processing can be considered.
- pseudo overwrite recording is performed as in the other embodiments described above.
- the drive device 310 first sends the received LSN to the PSN according to the initial logical address-physical address mapping. Convert (called playback destination PSN).
- the LSN designated for reproduction is converted into a PSN according to the initial logical address-physical address mapping, and the obtained PSN is replaced with the replacement management information list 100.
- the replacement management information 1010B having the replacement source location information 1012 in 0 is searched.
- the ECC cluster force at the position indicated by the replacement destination position information 1013 reproduces the data as in the other embodiments described above.
- the replacement location information 1012 having the PSN value corresponding to the LSN designated for reproduction is searched for the replacement location information 1013.
- the replacement location information 1013 can be found. It is determined that the ECC cluster indicated by is already recorded as an alternative cluster.
- the drive device 310 does not reproduce the data even with the ECC cluster force, but instead returns a predetermined value, for example, a value of all 0, from the host device 305 as the reproduced data.
- Such a reproduction process is executed when the drive device 310 receives a reproduction instruction from the host device 305 in each step of the reproduction process described with reference to FIG.
- the LSN indicating the logical NWA is set by the initial logical address physical address mapping.
- PSN PSN
- PSN indicating the position of WA is PSN-2).
- the replacement record is performed with this PSN-1 as the replacement source and PSN-2 as the replacement destination.
- the last data recording logical position information in track 3214 is the last recording position in the logical address space by the LSN, whereas the last data recording position information 213 in the track manages the last recording position in the physical address space by the PSN. It is for managing.
- the drive device 310 can determine the logical NWA for each track by referring to the final data recording logical position information 3214 in the track. [0554]
- the method of updating the last data recording logical position information 3214 in the track is as follows.
- 0 is set as the initial value of the in-track final data recording logical position information 3214. Then, the drive device 310 that has received the recording instruction from the host device 305 receives the recording position as an LSN. If the received LSN is larger than the in-track final data recording logical position information 3214, the in-track final data recording logical position information 3214 is updated with the LSN.
- FIG. 26A shows that the data "A", “B”, “C”, “D”, “F”, “F” are obtained in the same order as in FIG. 13A, FIG. 14A, and FIG. The following shows the data structure when G "is recorded.
- the replacement management information (7) may be deleted from the replacement management information list 1000F. By deleting, the capacity in the replacement management information list 1000F can be reduced.
- the number of replacement management information is smaller in the replacement management information list 1000E.
- the unrecorded logical sector described with reference to FIG. 26A does not occur.
- the method is more preferable in that the data capacity of the replacement management information list can be suppressed.
- the distribution of defective clusters of 100 on the information recording medium can be grasped at a glance, and they can be avoided during reproduction. It can be used to optimize processing such as pre-reading data.
- FIG. 27 shows the data of information recording medium 100 before data recording according to the present embodiment.
- FIG. 3 is a diagram illustrating an example of a data structure. The position indicated by T in the figure indicates the boundary between ECC clusters.
- T the boundary between ECC clusters.
- the host device 305 requests a logical NWA to the drive device 310.
- the drive device 310 requested for the logical NWA determines the NWA4611A from the LRA4610A, and returns the logical NWA corresponding to the NWA4611A to the host device 305.
- the replacement management information 1010 is generated not only for the data 'D1' 4622A but also for the data ' ⁇ 1 "4223 ⁇ , causing a problem that the capacity of the replacement management information list 1000 increases.
- Such a problem is caused by the fact that the drive apparatus has performed the unexpected replacement recording by the host apparatus 305. That is, after the replacement recording is performed by the drive device, a replacement process is required according to a further recording instruction from the host device 305, and the capacity of the replacement management information list 1000 is increased! Let's do it.
- the host device 305 issues a recording instruction in the state shown in FIG. 27, it is assumed that the recording instruction is performed first for additional recording.
- the file system operating on the host device 305 updates all files and manages the creation of new files, so that the order of recording instructions can be determined.
- the host device 305 transfers a certain amount of data to the ECC cluster capacity (for example, 64 KB).
- the ECC cluster capacity for example, 64 KB.
- the replacement management information is required for each recording unit, and when the data capacity to be recorded is large, a large number of replacement management information is required, and the data capacity of the replacement management information list 1000 becomes large.
- Fig. 30 for example, according to a recording instruction from the host device 305, replacement recording is performed with the replacement source cluster 5700 as a replacement source.
- the replacement destination is determined by the following procedure.
- the replacement destinations to which the alternative cluster can be assigned include the unrecorded area 5601A (in track #N 5602), the unrecorded area 5612 (in track # N + 115610), and the unrecorded area 5622 ( Track # N + 2 in 5620), unrecorded area 5632 (in Track # N + 3 in 5630).
- the distance from the position of the replacement source cluster 5700 (for example, the top physical sector in the replacement source cluster 5700) to the position of the replacement destination candidate (for example, the NWA position of the open track) is checked.
- D13, D12, D10, and D11 are respectively provided for the above-mentioned replacement destination candidates.
- the unrecorded area 5622 (ie, of D10) as the replacement destination, the distance from the replacement source to the replacement destination becomes the shortest at that point in time, and the data is reproduced. Thus, the access time can be minimized.
- the unrecorded area 5622 is included in the same track # N + 25620 as the replacement source position 5700. Therefore, assuming that the replacement destination is the unrecorded area 5622, the host device 30
- the ability to select the unrecorded area closest to the replacement source cluster as the replacement destination is characterized by excluding the unrecorded area in the same track as the replacement source cluster.
- the unrecorded area 5632 is the replacement destination.
- the drive device 310 records the replacement destination cluster 5710 at the NWA position of the unrecorded area 5632.
- replacement management information indicating mapping from the replacement source cluster 5700 to the replacement destination cluster 5710 is generated and recorded.
- the drive control unit 311 of the present invention when performing the pseudo-overwrite recording, performs a physical overwrite corresponding to the logical address included in the received recording instruction.
- the recording / reproducing unit 314 is controlled so as to record data at a specific position other than the position indicated by the address and in the specific position in the user data area 108.
- the specific position is the NWA in the open track different from the track determined in step S104 (Fig. 8A).
- the NWA in the open track indicates the position closest to the position indicated by the physical address corresponding to the logical address included in the recording instruction.
- the distance from the replacement source to the replacement destination is closest except for the same track. Therefore, access time can be reduced in data reproduction.
- the distance may be measured only for an unrecorded area having a PSN greater than the replacement source cluster, and the replacement destination may be determined.
- sequential recording is performed in the direction in which the PSN increases. Therefore, performing alternate recording in the direction in which the PSN increases increases the efficiency of data access. In this case, if there is no unrecorded area with a large PSN, the unrecorded area with a small PSN should be targeted.
- the distance between the replacement source and the replacement destination may be determined by determining the difference between the PSN values of the replacement source and the replacement destination.
- the physical distance between the replacement source and the replacement destination may be determined.
- the inner circumferential side force of the PSN also increases spirally, so that the difference in PSN value may not coincide with the physical distance.
- ECC clusters adjacent to each other in the radial direction of the information recording medium 100 are physically close to each other, but the difference in PSN value is not minimum.
- Step S1101 The drive control unit 311 receives a recording instruction from the host device 305.
- the recording instruction specifies data to be recorded and a logical address indicating a position where the data is to be recorded.
- Step S1102 The drive control section 311 converts a logical address included in the recording instruction into a physical address. Such a conversion is performed, for example, according to an initial logical address-physical address mapping.
- Step SI103 The drive control unit 311 determines one track from at least one track allocated in the user data area 108. Such a determination is made, for example, based on the physical address corresponding to the logical address included in the recording instruction and the track management information 210 (FIG. 2B) included in the disk management information. Since the track management information 210 indicates the range of the track on the data area 102, if the physical address is known, the corresponding track can be determined.
- Step S1104 The drive control section 311 determines whether or not the track determined in step S1103 is a force closed track that is an open track. Such a determination is made, for example, based on the track management information 210 (FIG. 2B). The track number is included in the header information 201, and the track is a closed track.
- Embodiment 1 For the definition of the open track, see Embodiment 1. See Embodiment 1 for the definition of closed track.
- step S1104 If it is determined in step S1104 that the track is an open track, the process proceeds to step S1105, and if it is determined that the track is a closed track, the process proceeds to step S1106.
- Step S1105 a recording process for an open track is performed.
- the recording process for the open track includes, for example, steps S105 to SI14 shown in FIG. 8A.
- Step S1106 recording processing for the closed track is executed.
- the recording process for the closed track includes, for example, steps S106 to S114 shown in FIG. 8A.
- the replacement destination may be an NWA of an open track different from the closed track determined in step S1104.
- FIG. 35A shows an example of the data structure of information recording medium 100 before the processing according to the data recording procedure shown in FIG. 34 is performed.
- track # N-1 and track #N are allocated in the user data area 108.
- track # N-1 is an open truck.
- Track # N-1 includes a recorded area 6600 and an unrecorded area 6602.
- track # N-1 is a closed track, additional data writing is prohibited. Therefore, the closed track cannot be recorded by the method shown in FIG. 36A.
- FIG. 37B shows an example of the data structure of the replacement management information 6615.
- the replacement management information 6615 includes a defective cluster head PSN 2012 as a replacement source address and a replacement cluster head PSN 2013 as a replacement destination address.
- indicating a position where the data “A” 6602 is actually recorded is set.
- step S1104 determines whether track # N-1 is an open track, as shown in FIG. 38A.
- LR A6610A indicating the final recording position in track # N-1 is updated to LRA6610B with the recording of data "A" 6602.
- Fig. 38B shows an example of the data structure of the replacement management information 6616.
- Replacement management information 6616 Is the same as the structure of the replacement management information 6615.
- step S1104 determines whether track # N-1 is a closed track, as shown in FIG. 39A. If it is determined in step S1104 that track # N-1 is a closed track, as shown in FIG. 39A, the open track is different from track # N-1.
- Data “A” 6602 may be recorded at the NWA position.
- An open track different from track #N is not limited to a track adjacent to track #N.
- An open track different from track #N can be any open track other than track #N.
- FIG. 39B shows an example of the data structure of the replacement management information 7615.
- Replacement management information 7615 Is the same as the structure of the replacement management information 6615.
- the area used in the information recording medium 100 is only the capacity of the data " ⁇ " 6602 specified by the recording instruction.
- Fig. 40 # illustrates an example of the data structure of the information recording medium 100 before the process according to the data recording procedure illustrated in Fig. 34 is performed.
- track ##-1 and track ## are allocated in the user data area 108.
- the track # ⁇ -1 is a closed track including the unrecorded area 6701.
- Track # ⁇ ⁇ ⁇ ⁇ is an open truck.
- Track # ⁇ —1 has data “ ⁇ ” 6700 already recorded. Since track # ⁇ —1 is a closed track, appending new data to track # ⁇ —1 is prohibited. ing
- the closed track is a track in which the track number is not included in the header information 201, and is a track in which the tracking of new data is prohibited.
- FIG. 41B shows an example of the data structure of the replacement management information 6730.
- the structure of the replacement management information 6730 is the same as the structure of the replacement management information 6615.
- track # N-1 is determined to be a closed track in the same manner as the data recording procedure described with reference to Fig. 39A.
- data “A1” 6703A is recorded at the NWA position of an open track different from track # N-1.
- Replacement management information 6733 is generated to map to a3).
- Fig. 42B shows an example of the data structure of the replacement management information 6733.
- the structure of the replacement management information 6733 is the same as the structure of the replacement management information 6615.
- step S112 of FIG. 8A data is recorded at a position designated as a recording destination.
- a process for determining whether the recording of the data was successful is performed.
- Such processing is called verification processing.
- the verifying process is performed, for example, by reading recorded data from the information recording medium 100 and determining whether the read data matches the data to be recorded.
- a verification error may occur when data is recorded in a replacement cluster in the user data area 108.
- the replacement cluster is set as a defective cluster, a new replacement cluster is allocated in the replacement area, and data is recorded in the new replacement cluster.
- FIG. 43 shows an example of the procedure of the process executed in step S112 in FIG. 8A. Each step shown in FIG. 43 is executed by drive control unit 311 of drive device 310.
- Step S 1108 Drive control section 311 records data at a specific position in user data area 108.
- the specific position is determined in steps S107 and S110 in FIG. 8A.
- Step S1109 The drive control section 311 determines whether or not the recording of data in the user data area 108 was successful. Such a determination is made, for example, by executing the above-described verification processing. If successful, the process proceeds to step S113 in FIG. If unsuccessful, processing proceeds to step S1110. [0678] (Step SI110) The drive control section 311 records data at a specific position in a replacement area (for example, the inner circumference replacement area 106 or the outer circumference replacement area 107). Here, the specific position is determined by referring to the next available position information in the replacement area included in the replacement area management information 1108.
- Step SI111 The drive control section 311 determines whether or not data recording in the replacement area has been successful. Such a determination is made, for example, by executing the above-described verify processing. If successful, the process proceeds to step S113 in FIG. 8A. If not, the process returns to step S1110. Thus, the recording of data in the replacement area is repeated until the data recording in the replacement area is successful.
- At least a part of the inner spare area 106 and the outer spare area 107 can be used as an area for recording updated data in pseudo overwrite recording described later.
- FIG. 44A shows an example of the data structure of information processing medium 100 before the process according to the data recording procedure shown in FIG. 34 is performed.
- track #M 7000 and track #N 7100 are allocated in the user data area 108.
- the track #M 7000 is an open track including a recorded area 7003 including the data “ ⁇ ” 7001 and an unrecorded area 7002.
- Track ## 7100 is an open track including an unrecorded area 7102.
- the drive control unit 311 sends the recording finger from the host device 305.
- the drive control unit 311 stores the data " ⁇ " 7101 at a specific position in the user data area 108.
- the drive control unit 311 If successful, the drive control unit 311 generates the replacement management information 7200 shown in Fig. 45B. If unsuccessful, the drive control unit 311 sets the data “ ⁇ ” at a specific position in the spare area.
- step S1110 is recorded (step S1110).
- the drive control unit 311 If successful, the drive control unit 311 generates the replacement management information 7201 shown in Fig. 46 ⁇ . If unsuccessful, the drive control unit 311 sets the data “ ⁇ ” at a specific position in the spare area.
- the drive device 310 may perform alternate recording a plurality of times.
- the replacement record for the second and subsequent times is a replacement record that the host device 305 does not expect.
- the replacement destination is not set to the user data area but to the replacement area, so that the time until the NWA is determined can be reduced.
- the NWA is determined at the time when it is determined that the pseudo overwrite recording is to be performed, so that the drive device 310 has a time delay with respect to the request from the host device 305. It is possible to return the latest NWA without generating a problem.
- the power truck # M7000 may be a closed truck.
- the position indicated by the recording instruction may be included in the unrecorded area 7002. In any case, steps S1118 to S1111 shown in FIG. 43 are executed as described above.
- any of the replacement management information 1010 in Fig. 5B, the replacement management information 1010B in Fig. 11, and the DFL entry 2010 in Fig. 16 can be used as the replacement management information.
- the replacement management information includes at least replacement source position information 1012 (or defective cluster head PSN 2012) and replacement destination position information 1013 (or replacement cluster head PSN 2013).
- the same replacement management information can be used regardless of the purpose of replacement (replacement due to defect or replacement due to pseudo-overwrite).
- the purpose of replacement and the type and position of replacement Regardless of the location, the pseudo-overwrite recording method can be realized using the single structure of the replacement management information.
- the replacement destination position information 1013 of the replacement management information includes a specific position in the user data area 108 when a replacement for the purpose of pseudo-overwrite occurs. If a replacement is performed for the purpose of recording due to a defect, a physical address indicating a specific position in the replacement area (for example, the inner replacement area 106 or the outer replacement area 107) is set. Is done.
- the range of the physical address set in the replacement destination location information 1013 (or the replacement cluster head PSN 2013) of the replacement management information is the user data area. It is limited to the range of 108 (hereinafter also referred to as the first range). Also, when a replacement for the purpose of recording due to a defect occurs, the range of the physical address set in the replacement destination information 1013 (or the replacement cluster head PSN 2013) of the replacement management information is the range of the replacement area ( Hereinafter, also referred to as the second range).
- the replacement management information can be generated in a single structure while retaining the information on the purpose of the replacement, recovery when an error occurs during reproduction from the replacement cluster can be used as information for one recovery. Available.
- the replacement management information is replacement intended for recording due to a defect, it can be determined that the same data is recorded in the replacement source as in the replacement destination. At this time, it may be possible to reproduce the correct data by reproducing the replacement source. If correct data can be reproduced, it is possible to avoid a reproduction error.
- Fig. 47 shows an example of the state of the spare area, the track structure, and the unrecorded area in the information recording medium 100 of the present invention.
- the information recording medium 100 includes an inner spare area 106, an outer spare area 107, and their unrecorded areas 601A and 601B.
- track # 18610 (open)
- track # 28620 (open)
- their unrecorded areas 8612 and 8622 are included.
- the capacity of the unrecorded area in the replacement area satisfies a predetermined criterion!
- the user data area is preferentially used as a recording destination of the substitute cluster.
- the capacity of the unrecorded area in the spare area at that time is obtained from the disc structure information 1100.
- the user data area is selected as the recording destination.
- the predetermined reference value is, for example, that the capacity value of the unrecorded area is smaller than the predetermined capacity value, or that the capacity value of the unrecorded area is smaller than a predetermined ratio to the total capacity of the replacement area. And so on.
- the replacement area may be used as a recording destination of the alternative cluster.
- Such a replacement cluster is recorded, for example, at the position indicated by the next available position information 8600A in Fig. 47.
- an unrecorded area remains in the spare area even in this state, so that information such as LVID can be reliably recorded.
- the replacement source position 9650 is a defective cluster, and replacement recording is performed using this position as the replacement source.
- the replacement destination is determined by the following procedure.
- the replacement destinations on which the alternative cluster can be recorded include an unrecorded area 9601A (in the inner circumference replacement area 106), an unrecorded area 9612 (in the track 9610), and an unrecorded area 9622 (in the track 9620). Middle) and 9601B (in the outer peripheral replacement area 107).
- a predetermined range from the inner circumference replacement area 106 is indicated as D1.
- the replacement destination is set to inner circumferential replacement area 106.
- a predetermined range from the outer peripheral replacement area 107 is indicated as D4.
- the replacement destination is set to the outer circumference replacement area 107.
- the replacement source position 9650 in Fig. 48 is located at a position D2 from the inner circumference replacement area 106, and assuming that Dl> D2, the replacement destination of the replacement source position 9650 is determined to be the inner circumference replacement area 106.
- the replacement cluster is recorded, for example, at the position indicated by the next available position information 9600A in FIG.
- the unrecorded area 9612 can also be used as the replacement source position 9650. Since the power replacement source position 9650 is within a predetermined range D1 from the inner circumference replacement area 106, the unrecorded area 9612 is not used. This is one of the features of the present embodiment.
- the replacement source position 9651 in FIG. 48 is located at the position D3 from the inner circumference replacement area 106, and is D1 and D3, so the replacement destination of the replacement source position 9651 does not become the inner circumference replacement area 106. Similarly, the replacement is not performed to the outer peripheral replacement area 107.
- the replacement source position 9651 is replaced in a user data area such as an unrecorded area 9622, for example.
- one of the features of the present embodiment is that even if there are unrecorded areas in the inner peripheral replacement area 106 and the outer peripheral replacement area 107, they are not used if the above-mentioned conditions regarding the range are not satisfied.
- the head part of the volume space is preferentially replaced with the inner circumference replacement area 106, which is the inner circumference part of the information recording medium 100.
- the end portion of the volume space is preferentially replaced with the outer peripheral replacement area 107 which is the outer peripheral portion of the information recording medium 100.
- a volume structure information (for example, an FSD or a ROOT directory) that is a starting point of a directory structure, a space bitmap, and the like are arranged at the beginning and end of a volume space.
- information for example, an FSD or a ROOT directory
- FIG. 49A is a diagram showing an example of the data structure of information recording medium 100 before data recording according to the present embodiment is performed.
- #N 10010 is located at the end of the user data area.
- the replacement management information 1010 is generated in which the physical cluster instructed to be recorded is the replacement source, and the replacement cluster on which the recording was actually performed is the replacement destination.
- FIG. 51A shows an example of a data structure when the replacement destination is the outer circumference replacement management area 107.
- PSN s2 is a position where data ' ⁇ ' 10820 is actually recorded in the outer peripheral replacement area 107.
- the area used on the information recording medium 100 is only the capacity of the data ' ⁇ ' 10802 for which recording was instructed, and wasteful recording of dummy data and the like is performed. No need.
- FIG. 53A shows that, after data is further recorded on track #N 10010 from the state of FIG. 52A and a recorded area 10840 is formed, the ECC cluster (P
- the replacement is recorded in the C cluster.
- replacement management information 10820 shown in Fig. 53B is provided.
- the recording procedure will be described by taking as an example a process of performing a file system formatting process in accordance with the UDF standard.
- Fig. 54 is a diagram illustrating an example of the correspondence between the logical address space and the physical address space when replacement recording is not performed.
- FIG. 54 also shows the arrangement of data included in the volume structure area 410 defined by the UDF standard.
- the file system formatting process is a process of recording file management information including the data of the volume structure area 410 and the metadata file 440 in the partition space.
- the file system stores the file management information in the memory circuit 3 assuming the state shown in FIG.
- the force generated in 02 or the like is also recorded on the information recording medium 100.
- recording is actually performed, for example, as shown in FIG. 55, a defective cluster may occur on the way, and replacement recording may be performed.
- Another avoidance method is to change the data in the file management information and change the logical address of the recording destination. That is, when the recording destination is shifted due to the replacement recording, the deviation is absorbed by changing the recording destination of the file management information. This eliminates the need for replacement records.
- a predetermined number of reserved clusters 9000 are set between the start volume descriptor pointer 703 and other data. Secure and perform file system formatting.
- the reserved cluster 9000 is an area to be used as an alternative cluster when verification processing fails during recording of the power volume structure area 410, which is an area where valid data is not recorded in the initial state.
- the volume identifier column 700, the main volume descriptor column 701, and the logical volume integrity descriptor 702 are recorded in order by a verify "after" write process. To go.
- the logical volume maintenance descriptor 702 is also recorded alternately.
- preliminary recording of the start volume descriptor pointer 703 is performed in the reserved cluster 11000.
- the preliminary record of the start volume descriptor pointer 703 is the start volume descriptor pointer
- a reserved cluster 11000 may be further provided between the start volume descriptor pointer 703 and the head of the partition space 710.
- special replacement management information 1010 for associating the reserved cluster 11000 with a specific recorded cluster may be defined.
- a new flag indicating this special replacement information is provided in the status information 1011 of the replacement management information 1010.
- the PSN of the recorded cluster is set in the replacement source location information 1012.
- the PSN of the reserved cluster 11000 is set in the replacement destination location information 1013.
- the logical volume integrity descriptor 702 is data that must always be recorded last in the information recording medium 100 formatted according to the UDF standard.
- the present invention is useful for providing a drive device or the like that enables the user data area to be used without any problem in pseudo overwrite recording of a write-once optical disc.
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- Engineering & Computer Science (AREA)
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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 (6)
Application Number | Priority Date | Filing Date | Title |
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CN2005800277507A CN101023485B (zh) | 2004-06-15 | 2005-06-14 | 驱动装置 |
US11/570,725 US8107332B2 (en) | 2004-06-15 | 2005-06-14 | Drive apparatus for recording a write-once medium |
JP2006514742A JP4495155B2 (ja) | 2004-06-15 | 2005-06-14 | ドライブ装置 |
EP05750872A EP1760715A4 (en) | 2004-06-15 | 2005-06-14 | DRIVE DEVICE |
KR1020067026497A KR101138639B1 (ko) | 2004-06-15 | 2005-06-14 | 드라이브 장치 |
BRC10511380-6A BRPI0511380C1 (pt) | 2004-06-15 | 2005-06-14 | desenvolvimento em dispositivo de unidade de disco para a realização de uma gravação seqüêncial por meio de gravação de memória única |
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EP (2) | EP1758115A4 (ja) |
JP (4) | JP4495155B2 (ja) |
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CN (1) | CN101859579B (ja) |
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CA (2) | CA2536003C (ja) |
MY (2) | MY146234A (ja) |
TW (3) | TWI431616B (ja) |
WO (2) | WO2005124767A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2007114424A1 (ja) * | 2006-04-06 | 2009-08-20 | パナソニック株式会社 | 追記型記録媒体に対するデータ記録方法及びデータ記録装置 |
JP2014010847A (ja) * | 2012-06-28 | 2014-01-20 | Sony Corp | 記録装置、記録方法 |
JP2014078292A (ja) * | 2012-10-10 | 2014-05-01 | Sony Corp | 記録制御装置および方法 |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7233550B2 (en) | 2002-09-30 | 2007-06-19 | Lg Electronics Inc. | Write-once optical disc, and method and apparatus for recording management information on write-once optical disc |
KR20040028469A (ko) | 2002-09-30 | 2004-04-03 | 엘지전자 주식회사 | 1 회 기록 가능한 광디스크의 디펙트 영역 관리방법 |
AU2003282447B2 (en) | 2002-12-11 | 2010-03-11 | Lg Electronics Inc. | Method of managing overwrite and method of recording management information on an optical disc write once |
TWI314315B (en) | 2003-01-27 | 2009-09-01 | Lg Electronics Inc | Optical disc of write once type, method, and apparatus for managing defect information on the optical disc |
US7313065B2 (en) | 2003-08-05 | 2007-12-25 | Lg Electronics Inc. | Write-once optical disc, and method and apparatus for recording/reproducing management information on/from optical disc |
KR101014727B1 (ko) * | 2004-06-23 | 2011-02-16 | 엘지전자 주식회사 | 1회 기록 가능한 광디스크의 중첩 기록 방법 및 장치 |
JP4739708B2 (ja) * | 2004-08-25 | 2011-08-03 | 株式会社日立製作所 | 放送番組の記録方法及び放送受信装置、並びに、そのための情報記録装置 |
JP4662063B2 (ja) * | 2006-05-25 | 2011-03-30 | 信越化学工業株式会社 | フォトレジスト下層膜形成材料及びパターン形成方法 |
WO2008056593A1 (fr) * | 2006-11-06 | 2008-05-15 | Panasonic Corporation | Dispositif d'enregistrement |
JP4721063B2 (ja) * | 2006-12-12 | 2011-07-13 | ソニー株式会社 | 光ディスク装置及び記録制御方法 |
KR101453296B1 (ko) * | 2008-01-10 | 2014-10-21 | 삼성전자주식회사 | 정보 저장 매체, 기록/재생 장치 및 기록/재생 방법 |
KR101566250B1 (ko) * | 2009-01-13 | 2015-11-05 | 삼성전자주식회사 | 휴대용 단말기에서 멀티미디어 파일 스트리밍을 위한 장치 및 방법 |
RU2011103167A (ru) * | 2009-05-08 | 2013-06-20 | Панасоник Корпорэйшн | Носитель записи информации, способ записи информации, устройство записи информации, способ воспроизведения информации и устройство воспроизведения информации |
KR101615623B1 (ko) * | 2009-05-27 | 2016-04-27 | 삼성전자주식회사 | 정보 저장 매체, 기록 재생 방법 및 기록 재생 장치 |
JP5906957B2 (ja) * | 2012-06-22 | 2016-04-20 | ソニー株式会社 | 記録装置、記録方法、交替先選択方法 |
US9070378B2 (en) | 2012-10-10 | 2015-06-30 | Seagate Technology Llc | Partial write system |
JP2014186781A (ja) * | 2013-03-25 | 2014-10-02 | Hitachi-Lg Data Storage Inc | データ記録再生装置、アーカイブシステム、記録制御方法 |
US20170083630A1 (en) | 2015-09-21 | 2017-03-23 | Egemen Tas | Method to virtualize large files in a sandbox |
WO2017006536A1 (ja) | 2015-07-03 | 2017-01-12 | パナソニックIpマネジメント株式会社 | 情報記録装置及びデータ消去方法 |
US10042582B2 (en) | 2015-08-28 | 2018-08-07 | Panasonic Intellectual Property Management Co., Ltd. | Data erasing method |
JP6937468B2 (ja) | 2018-03-06 | 2021-09-22 | パナソニックIpマネジメント株式会社 | 情報記録装置及びデータ消去方法 |
KR20200137739A (ko) | 2019-05-31 | 2020-12-09 | 에스케이하이닉스 주식회사 | 반도체장치 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06103577A (ja) * | 1992-09-22 | 1994-04-15 | Hitachi Maxell Ltd | 書換型光ディスクのデータ記録方法 |
JP2000322835A (ja) * | 1999-03-08 | 2000-11-24 | Matsushita Electric Ind Co Ltd | 情報記録媒体、情報記録方法、情報記録装置および情報再生装置 |
JP2001110168A (ja) * | 1999-10-13 | 2001-04-20 | Ricoh Co Ltd | 情報記録再生装置と情報記録再生方法と情報記録再生プログラムを記録したコンピュータ読み取り可能な記録媒体 |
JP2002163862A (ja) * | 2000-11-22 | 2002-06-07 | Sony Corp | 情報記録再生装置 |
WO2004049332A1 (ja) * | 2002-11-22 | 2004-06-10 | Sony Corporation | 記録媒体、記録装置、再生装置、記録方法、再生方法 |
JP2005196903A (ja) * | 2004-01-09 | 2005-07-21 | Hitachi Ltd | 記録媒体、記録装置及び再生装置 |
Family Cites Families (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0642300B2 (ja) * | 1986-10-20 | 1994-06-01 | 松下電送株式会社 | 交代記録再生方法 |
US4953122A (en) * | 1986-10-31 | 1990-08-28 | Laserdrive Ltd. | Pseudo-erasable and rewritable write-once optical disk memory system |
JPH0223417A (ja) * | 1988-07-13 | 1990-01-25 | Matsushita Electric Ind Co Ltd | 情報記録方式と情報記録媒体 |
US5448728A (en) * | 1991-08-08 | 1995-09-05 | Sharp Kabushiki Kaisha | Storage medium control system for controlling a write-once read-many storage medium |
JPH06103557A (ja) * | 1992-09-22 | 1994-04-15 | Kao Corp | 磁気記録媒体 |
JPH06338139A (ja) * | 1993-05-31 | 1994-12-06 | Olympus Optical Co Ltd | 追記型情報記録媒体の情報記録における交代処理方法 |
KR0183160B1 (ko) * | 1995-09-30 | 1999-05-15 | 김광호 | 멀티 세션 디스크 및 고속 억세스 방법 |
JPH10320924A (ja) * | 1997-05-21 | 1998-12-04 | Canon Inc | 情報記録方法 |
US6249506B1 (en) | 1998-01-27 | 2001-06-19 | Matsushita Electric Industrial Co., Ltd. | Medium attaching device and disk drive apparatus |
JPH11330385A (ja) * | 1998-05-20 | 1999-11-30 | Mitsumi Electric Co Ltd | Cmosデバイス |
JPH11339385A (ja) * | 1998-05-22 | 1999-12-10 | Canon Inc | 情報再生方法 |
US6160778A (en) * | 1999-03-08 | 2000-12-12 | Matsushita Electric Industrial Co., Ltd. | Information recording medium, information recording method, information recording apparatus and information reproducing apparatus |
JP3040779B1 (ja) * | 1999-03-08 | 2000-05-15 | 松下電器産業株式会社 | 情報記録媒体、情報記録方法、情報記録装置および情報再生装置 |
JP2003168876A (ja) | 2001-11-30 | 2003-06-13 | Toshiba Corp | 電子機器 |
CN101281772A (zh) * | 2002-01-22 | 2008-10-08 | 松下电器产业株式会社 | 多层信息记录媒介,信息记录设备,和记录方法 |
JP2004049332A (ja) * | 2002-07-17 | 2004-02-19 | Koa:Kk | 遊技台のリーチ回数表示装置 |
JP3851896B2 (ja) | 2002-09-27 | 2006-11-29 | 株式会社東芝 | 半導体装置の製造方法 |
EP1552518A2 (en) * | 2002-09-27 | 2005-07-13 | Koninklijke Philips Electronics N.V. | Methods and devices for defect and reallocation management on write-once media |
KR100739673B1 (ko) * | 2002-10-10 | 2007-07-13 | 삼성전자주식회사 | 임시 결함 관리 영역을 사용한 결함 관리 방법 |
JP2004154496A (ja) | 2002-11-01 | 2004-06-03 | Chieko Takahashi | 掛け布団と掛け布団カバーを固定するバンド |
JP2004154422A (ja) | 2002-11-07 | 2004-06-03 | Toshiba Tec Corp | マット式マッサージ機及びベッド |
AU2003282447B2 (en) * | 2002-12-11 | 2010-03-11 | Lg Electronics Inc. | Method of managing overwrite and method of recording management information on an optical disc write once |
KR101008641B1 (ko) * | 2002-12-11 | 2011-01-17 | 엘지전자 주식회사 | 1회 기록가능한 광디스크에 있어서의 중첩기록 관리방법 및장치 |
US7869315B2 (en) * | 2003-02-28 | 2011-01-11 | Samsung Electronics Co., Ltd. | Write-once optical disc having update area and access area |
US7463562B2 (en) * | 2003-04-30 | 2008-12-09 | Samsung Electronics Co., Ltd. | Method of recording temporary defect list on write-once recording medium, method of reproducing the temporary defect list, recording and/or reproducing apparatus, and the write-once recording medium |
MXPA05012044A (es) * | 2003-05-09 | 2006-02-03 | Lg Electronics Inc | Disco optico de una sola escritura, metodo y aparato par recuperacion de informacion de administracion de disco del disco optico de una sola escritura. |
JP2007528564A (ja) * | 2003-05-09 | 2007-10-11 | エルジー エレクトロニクス インコーポレーテッド | データ領域を管理するためのデータ構造を備えた記録媒体と記録再生方法及び装置 |
JP4846566B2 (ja) * | 2003-05-09 | 2011-12-28 | エルジー エレクトロニクス インコーポレイティド | 1回だけ記録可能な光ディスク及び1回だけ記録可能な光ディスクからの管理情報の復元方法並びに装置 |
JP3861856B2 (ja) * | 2003-06-13 | 2006-12-27 | ソニー株式会社 | 記録再生装置、記録再生方法 |
TW200502932A (en) * | 2003-07-07 | 2005-01-16 | Hitachi Ltd | A recording medium, recording method and recording apparatus |
KR20050009031A (ko) * | 2003-07-15 | 2005-01-24 | 엘지전자 주식회사 | 1회 기록 가능한 광디스크 및 광디스크의 관리정보 기록방법 |
CA2537889C (en) * | 2003-09-08 | 2013-10-22 | Lg Electronics Inc. | Write-once optical disc, and method and apparatus for recording management information on the write-once optical disc |
KR101108953B1 (ko) * | 2003-09-08 | 2012-01-31 | 엘지전자 주식회사 | 1회-기록 광 디스크, 및 1회-기록 광 디스크 상에 관리정보를 기록하는 방법 및 장치 |
KR101024916B1 (ko) * | 2004-03-19 | 2011-03-31 | 엘지전자 주식회사 | 1회 기록 가능한 고밀도 광디스크의 데이터 기록 방법 및장치 |
JP2005339622A (ja) * | 2004-05-25 | 2005-12-08 | Nec Corp | 記録管理情報記録方法および情報記録装置および情報記録媒体 |
JP4078560B2 (ja) * | 2004-05-25 | 2008-04-23 | 日本電気株式会社 | 光ディスク記録システム |
-
2005
- 2005-06-14 EP EP05750984A patent/EP1758115A4/en not_active Withdrawn
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-
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-
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06103577A (ja) * | 1992-09-22 | 1994-04-15 | Hitachi Maxell Ltd | 書換型光ディスクのデータ記録方法 |
JP2000322835A (ja) * | 1999-03-08 | 2000-11-24 | Matsushita Electric Ind Co Ltd | 情報記録媒体、情報記録方法、情報記録装置および情報再生装置 |
JP2001110168A (ja) * | 1999-10-13 | 2001-04-20 | Ricoh Co Ltd | 情報記録再生装置と情報記録再生方法と情報記録再生プログラムを記録したコンピュータ読み取り可能な記録媒体 |
JP2002163862A (ja) * | 2000-11-22 | 2002-06-07 | Sony Corp | 情報記録再生装置 |
WO2004049332A1 (ja) * | 2002-11-22 | 2004-06-10 | Sony Corporation | 記録媒体、記録装置、再生装置、記録方法、再生方法 |
JP2005196903A (ja) * | 2004-01-09 | 2005-07-21 | Hitachi Ltd | 記録媒体、記録装置及び再生装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1760715A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2007114424A1 (ja) * | 2006-04-06 | 2009-08-20 | パナソニック株式会社 | 追記型記録媒体に対するデータ記録方法及びデータ記録装置 |
US8031567B2 (en) | 2006-04-06 | 2011-10-04 | Panasonic Corporation | Data recording method and data recording device for write-once type recording medium |
JP4933532B2 (ja) * | 2006-04-06 | 2012-05-16 | パナソニック株式会社 | 追記型記録媒体に対するデータ記録方法及びデータ記録装置 |
JP2014010847A (ja) * | 2012-06-28 | 2014-01-20 | Sony Corp | 記録装置、記録方法 |
JP2014078292A (ja) * | 2012-10-10 | 2014-05-01 | Sony Corp | 記録制御装置および方法 |
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