WO2007094307A1 - Dispositif et procédé d'enregistrement d'informations, système d'enregistrement d'informations et programme informatique - Google Patents

Dispositif et procédé d'enregistrement d'informations, système d'enregistrement d'informations et programme informatique Download PDF

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Publication number
WO2007094307A1
WO2007094307A1 PCT/JP2007/052497 JP2007052497W WO2007094307A1 WO 2007094307 A1 WO2007094307 A1 WO 2007094307A1 JP 2007052497 W JP2007052497 W JP 2007052497W WO 2007094307 A1 WO2007094307 A1 WO 2007094307A1
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WO
WIPO (PCT)
Prior art keywords
recording
area
user data
data
recorded
Prior art date
Application number
PCT/JP2007/052497
Other languages
English (en)
Japanese (ja)
Inventor
Keiji Katata
Takeshi Koda
Masayoshi Yoshida
Original Assignee
Pioneer Corporation
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Filing date
Publication date
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Publication of WO2007094307A1 publication Critical patent/WO2007094307A1/fr

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Classifications

    • 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
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
    • 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
    • G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
    • G11B2220/235—Multilayer discs, i.e. multiple recording layers accessed from the same side
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • 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
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information

Definitions

  • the present invention relates to an information recording apparatus and method such as a DVD recorder, and a technical field of a computer program that causes a computer to function as such an information recording apparatus.
  • information recording media such as DVD-ROM (DVD-Read Only Memory), DVD-R (DVD-Recordable), and BD-ROM, the same as described in Patent Document 1 and the like.
  • An information recording medium such as a multi-layer type or dual layer type optical disc in which a plurality of recording layers are laminated or bonded on a substrate has also been developed.
  • an information recording device such as a DVD recorder is closest to the laser beam irradiation side (ie, A phase change recording method (in which data is recorded on the L0 layer) by irradiating a recording laser beam onto the recording layer (referred to as “L0 layer” in this application as appropriate) located on the side close to the optical pickup.
  • the recording layer reversible recording method
  • the recording layer is located on the far side of the L0 layer (that is, on the side far from the optical pickup force) when viewed from the laser light irradiation side via the L0 layer, etc.
  • data is recorded on the L1 layer by the phase change recording method.
  • data is recorded by the inner peripheral side force in the L0 layer as well as in the outer peripheral side, and in the L1 layer, data is recorded in the direction from the outer peripheral side to the inner peripheral side.
  • the pogitt track path method is used.
  • the laser light irradiated on the L1 layer The characteristics of will change. Specifically, the L0 layer area where the data has been recorded and the area part of the L0 layer where the data has not been recorded have different transmittances to the laser beam. Characteristics such as the intensity of the emitted laser light will change. For this reason, when data is recorded on a dual layer type optical disc, for example, the standard stipulates that data is recorded on the L1 layer after the data is recorded on the LO layer. More specifically, for example, the standard stipulates that data is recorded in the L1 layer by irradiating laser light through the LO layer area where data has been recorded. This restriction is called the so-called recording order.
  • a recordable information recording medium capable of recording data eg, DVD-RW
  • a read-only information recording medium capable of only reading data eg, DVD-ROM
  • compatibility processing such as closed disk operation.
  • a lead-in area is provided on the inner circumference side of the LO layer
  • a middle area that sandwiches the user data area together with the lead-in area is provided on the outer circumference side of the LO layer
  • a lead is provided on the inner circumference side of the L1 layer.
  • An out area is provided, and a middle area that sandwiches the user data area together with the read out area is provided on the outer periphery of the L1 layer.
  • the user data area between the lead-in area and the middle area and the user data area between the lead-out area and the middle area are set to the recorded state.
  • an unrecorded area may exist in the user data area between the lead-in area and the middle area and the user data area between the lead-out area and the middle area.
  • the padding data for example, “OOh” data, etc.
  • the data can be recorded again on the information recording medium by performing processing such as open disk operation.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2000-311346
  • Patent Document 2 Japanese Patent Laid-Open No. 2001-23237
  • RMD Recording Management Data
  • RMD contains the address of the end of the area where data has been recorded.
  • RZone End Address which indicates the service name, is included. This RZone end address is recorded while the value is appropriately updated as data is recorded in the L0 and L1 layers.
  • a system for example, a general-purpose personal computer
  • OS, etc. used in this technology has technical problems such as only reading and writing up to the area indicated by the RZone end address.
  • the present invention has been made in view of the above-described conventional problems, for example, an information recording apparatus and method capable of effectively using the entire area of the information recording medium, an information recording system, and It is an object to provide a computer program that causes a computer to function as such an information recording device.
  • an information recording apparatus of the present invention records the user data on an information recording medium having a first recording layer and a second recording layer each having a user data area in which user data can be recorded.
  • Recording means for setting, a setting means for setting a recording zone end address indicating an end portion of the area where the user data has been recorded in the user data area, and a read-only information recording medium for the information recording medium The first recording layer and the second recording layer are obtained as a result of performing a compatibility process for compatibility.
  • the setting means is configured to set the recording zone end address to the address of the end of the user data area of the second recording layer when the entire user data area is recorded.
  • a user including, for example, video information or audio information in each of the user data area of the first recording layer and the user data area of the second recording layer by the operation of the recording means.
  • Data can be recorded.
  • the inner peripheral side force of the information recording medium is also directed toward the outer peripheral side.
  • User data is recorded, for example, on the second recording layer located on the back side (specifically, located on the far side V as seen from the optical pickup described later), for example, on the outer periphery of the information recording medium.
  • the opposite track path method is used in which user data is recorded from the side toward the inner circumference.
  • the operation of the setting means causes the terminal portion of the area portion in which the user data in the user data area has been recorded (for example, on the outer peripheral side in the first recording layer). This is the end of the recording zone that indicates the end of the second recording layer.
  • the recording zone end address may be recorded on the information recording medium, for example, by the operation of the recording means.
  • the result of performing compatibility processing for compatibility with the information recording medium for reproduction only for example, the entire user data area of the first recording layer
  • the entire user data area of each of the first recording layer and the second recording layer is already recorded.
  • the recording zone end address is set to the end address of the user data area of the second recording layer by the operation of the first control means.
  • a lead-in area and a middle area are provided in the first recording layer, and a lead-out area and a middle area are provided in the second recording layer. Further, the user data area between the lead-in area and the middle area and the user data area between the lead-out area and the middle area are set in a recorded state. Therefore, if the compatibility processing is performed after any user data is recorded on the second recording layer, the user data on the second recording layer is used. User data or padding data is recorded in the entire data area.
  • the recording zone end address is read, the entire user data area of the second recording layer can be suitably recognized. If the control by the first control means is not performed during the compatibility process, the recording zone end address indicates the end of the area portion where the user data has been recorded. For this reason, there may be an inconvenience that the area portion of the user data area of the second recording layer made available by recording the padding data cannot be recognized. This is particularly noticeable in systems that do not support open disk operations for recording user data on the information recording medium again after the compatibility process.
  • the recording zone end address is set to the end address of the user data area of the second recording layer, even in a system that does not support open disk operation, padding data It is possible to preferably recognize the area portion of the user data area of the second recording layer that is made available by recording. For this reason, the entire area of the information recording medium can be used effectively.
  • One aspect of the information recording apparatus of the present invention is that the information recording medium is configured so that the recording zone end address is set to an address of an end portion of the user data area of the second recording layer.
  • the user data recorded on the information recording medium is physically managed (in other words, managed on the drive side), and the recording zone end address is recorded on the information recording medium. It is possible to favorably maintain the synchronization with the structure information for logically managing the recorded user data (in other words, for managing on the host side). Therefore, even if the recording zone end address is set to the end address of the user data area of the second recording layer during the compatibility process as described above, the user data recorded on the information recording medium is logically managed. No contradiction occurs with the file system information to be executed. Therefore, the above-mentioned various benefits can be enjoyed while ensuring a suitable recording operation and reproducing operation.
  • the user data is stored in response to setting the recording zone end address to an address of an end portion of the user data area of the second recording layer.
  • the apparatus further comprises second control means for controlling the recording means to record information to be recorded at the end portion of the recorded area portion at the end portion of the user data area of the second recording layer.
  • the information to be recorded at the end portion of the area portion where the user data has been recorded is suitable even after the control by the first control means during the compatibility process. Can be read. Therefore, the above-described various benefits can be enjoyed while ensuring a suitable recording operation and reproducing operation.
  • the recording means records the user data in the entire user data area of the first recording layer, and then the user data of the second recording layer. The user data is recorded in the area.
  • the information recording method of the present invention includes a recording step of recording user data on an information recording medium including a first recording layer and a second recording layer each having a user data area, and the user A setting step of setting a recording zone end address indicating an end portion of an area portion in which the user data has been recorded in the data area; the entire user data area of the first recording layer; and the user data of the second recording layer
  • the recording zone end address when the user data is recorded in at least a part of the area and the information recording medium is subjected to compatibility processing for compatibility with a reproduction-only information recording medium.
  • a first control step of controlling the setting step so as to set the address of the end portion of the user data area of the second recording layer.
  • the information recording method of the present invention can also adopt various aspects. [0025] (Computer program)
  • a computer program of the present invention is a computer program for recording control for controlling a computer provided in the information recording apparatus of the present invention described above (including various aspects), A computer is caused to function as at least a part of the recording means, the setting means, and the first control means.
  • the computer program of the present invention is read from a recording medium such as a ROM, CD-ROM, DVD-ROM, or hard disk storing the computer program and executed by the computer, or If the computer program is downloaded to a computer via communication means and then executed, the above-described information recording apparatus of the present invention can be realized relatively easily.
  • a recording medium such as a ROM, CD-ROM, DVD-ROM, or hard disk storing the computer program and executed by the computer, or If the computer program is downloaded to a computer via communication means and then executed, the above-described information recording apparatus of the present invention can be realized relatively easily.
  • the computer program of the present invention can also adopt various aspects.
  • a computer program product in a computer-readable medium can be executed by a computer provided in the above-described information recording apparatus of the present invention (including various aspects thereof).
  • the program instructions are clearly embodied, and the computer functions as at least a part of the recording means, the setting means, and the first control means.
  • the computer program product can be read into a computer from a recording medium such as a ROM, CD-ROM, DVD-ROM, or hard disk storing the computer program product, or
  • a recording medium such as a ROM, CD-ROM, DVD-ROM, or hard disk storing the computer program product
  • the computer program product which is a transmission wave
  • the computer program product may be configured by a computer readable code (or computer readable instruction) that functions as the information recording apparatus of the present invention described above. (Information recording system)
  • an information recording system of the present invention includes the above-described information recording apparatus of the present invention (including various aspects thereof).
  • each of the above-described information recording apparatus of the present invention has You can enjoy the same benefits as seed benefits.
  • the information recording system of the present invention can also adopt various aspects.
  • the recording device As described above, according to the information recording apparatus of the present invention, the recording device, the setting device, and the first control device are provided.
  • the information recording method of the present invention includes a recording process, a setting process, and a first control process.
  • the computer is caused to function as at least part of the recording means, the setting means, and the first recording means.
  • the information recording apparatus of the present invention is included. Therefore, the entire area of the information recording medium can be used effectively.
  • FIG. 1 is a schematic plan view showing a basic structure of an optical disc according to the present embodiment, a schematic sectional view of the optical disc, and a recording area structure in the radial direction associated therewith. It is a schematic conceptual diagram.
  • FIG. 2 is a schematic cross-sectional view of an optical disc and a schematic conceptual diagram of a recording area structure in the radial direction associated therewith.
  • FIG. 3 is a data structure diagram conceptually showing the data structure of RMD recorded in RMA.
  • FIG. 4 is a data structure diagram conceptually showing the data structure of each field constituting the RMD for each of format 2 and format 3.
  • FIG. 5 is a data structure diagram showing the data structure of field 3 of RMD in format 3.
  • FIG. 6 is a block diagram conceptually showing the basic structure of the information recording / reproducing apparatus in the example.
  • FIG. 7 is an area structure diagram conceptually showing the area structure of the optical disc before data is recorded.
  • FIG. 8 An area structure diagram conceptually showing the area structure of the optical disk when data is recorded only in the LO layer.
  • FIG.9 Conceptual area structure of optical disc when data is recorded on LO and L1 layers
  • FIG. 1 (a) is a schematic plan view showing the basic structure of the optical disc 100 according to the present embodiment
  • FIG. 1 (b) is a schematic cross-sectional view of the optical disc 100 and is associated therewith
  • 2 is a schematic conceptual diagram of a recording area structure in the radial direction.
  • the optical disc 100 is, for example, read on the recording surface on the disc body having a diameter of about 12 cm, with the center hole 101 as the center, like DVD.
  • In-area (Lead-In Area) 102 or Lead-Out Area (Lead-Out Area) 118, data areas 105 and 115 constituting a specific example of “user data area” in the present invention, fixed middle area (Fixed Middle Area) 109 and 119 are provided.
  • the disk 100 has a recording layer or the like laminated on a transparent substrate 110.
  • each recording area of the recording layer for example, tracks such as a groove track and a land track are alternately provided in a spiral shape or a concentric shape around the center hole 101.
  • tracks such as a groove track and a land track are alternately provided in a spiral shape or a concentric shape around the center hole 101.
  • data is divided and recorded in units of ECC blocks.
  • the ECC block is a data management unit in which recorded information can be error-corrected.
  • the present invention is not particularly limited to an optical disc having such three areas.
  • the lead-in area 102, the lead-out area 118, or the fixed middle area 109 (119) does not exist, the data structure described below can be constructed.
  • the lead-in area 102, the lead-out area 118, or the fixed middle area 109 (119) may be further subdivided.
  • the optical disc 100 includes, for example, an LO layer that constitutes an example of the first and second recording layers according to the present invention on a transparent substrate 110.
  • L1 layer has a laminated structure.
  • Data recording / reproduction in the L0 layer is performed or data recording / reproduction in the L1 layer is performed.
  • the optical disc 100 according to the present embodiment corresponds to an opposite track path type optical disc.
  • the optical disc 100 after data is recorded in the data area 105 of the L0 layer, data is recorded in the data area 115 of the L1 layer. More specifically, after data is recorded in the entire data area 105 of the L0 layer, data recording to the data area 115 of the L1 layer is started.
  • the optical disc 100 includes an RMA (Recording Management Area) 103 (113) on the inner peripheral side of the lead-in area 102 and the lead-out area 118.
  • RMA Recording Management Area
  • the RMA 103 (113) is a recording area for recording RMD (Recording Management Data) for managing data recording on the optical disc 100.
  • RMD Recording Management Data
  • R A more specific data structure of MD will be described in detail later (see Fig. 3 to Fig. 5).
  • the optical disc 100 according to the present embodiment may be two-layer single-sided, that is, not limited to dual layers, but may be two-layer double-sided, that is, dual-layer double-side. Furthermore, it is not limited to an optical disc having two recording layers as described above, and may be a multilayer type optical disc having three or more layers.
  • the fixed middle area 109 (119) is recorded in the entire data area 105 (115), and then, for example, a read-only optical disk such as a DVD-ROM and the optical disk 100 according to the present embodiment are used. Formed for compatibility with. In other words, the fixed middle area 109 (119) is formed in order to make the area structure on the two-layered read-only optical disc similar to the area structure on the optical disc 100 according to the present embodiment. .
  • the fixed middle area 109 (119) when data is recorded in the entire data area 105 (115), when performing a layer jump to change the recording layer or near the fixed middle area 109 (119) It has a function to prevent the optical pickup from jumping to an unrecorded area (specifically, the outer periphery side of the fixed middle area 109 (119)) during hair access.
  • a shifted middle area 106 (116) is used instead of the fixed middle area 109 (119).
  • FIG. 2 is a schematic sectional view of the optical disc 100 and a schematic conceptual diagram of the recording area structure in the radial direction associated therewith.
  • the shifted middle area 106 is provided in the data area 105 following the data recorded in a part of the data area 105.
  • the shifted middle area 116 is provided in the data area 115 so as to face the shifted middle area 106 provided in the L0 layer following the data recorded in a part of the data area 115. It is done.
  • a read-only optical disk such as a DVD-ROM can be used.
  • Compatibility with the optical disc 100 according to the present embodiment can be achieved.
  • the shifted middle area 106 (116) has a function for preventing the optical pickup from popping out in the case where data is recorded only in a part of the data area 105 (115), and a reproduction-only type. And a function for maintaining compatibility with other optical discs.
  • the shifted middle area 106 (116) is particularly effectively used when performing layer-one jump recording.
  • the fixed middle area 109 (119) is compatible with a read-only optical disc and a function to prevent the optical pickup from popping out when data is recorded in the entire data area 105 (115). It has both the function to keep the sex.
  • FIG. 3 is a data structure diagram conceptually showing the data structure of RMD recorded in RMA103 (113), and FIG. 4 shows the data structure of each field constituting RMD as format 2 and format.
  • FIG. 5 is a data structure diagram conceptually showing each of 3 and FIG. 5 is a data structure diagram showing a data structure of field 3 of RMD in format 3.
  • the RMA 103 has a similar data structure! / ⁇ Needless to say.
  • the RMA 103 is divided into five RMA segments (# 1 to # 5).
  • Each RMA segment (# 1 to # 5) can contain 28 RMD sets (# 1 to # 28).
  • Each RMD set (# 1 to # 28) can record 5 RMD blocks, each with a size of 32KB.
  • the five RMD blocks recorded in each RMD set (# 1 to # 28) have the same contents except for some fields. In other words, five RMD blocks showing the same contents are recorded in one RMD set redundantly.
  • Each RMD block contains a Linking Loss Area with a size of 2 KB and 15 fields (0 to 14) each with a size of power KB. It is.
  • the optical disc 100 records the format 2 RMD (Format 2 RMD) and the format 3 RMD (Format 3 RMD) in the RMA 103.
  • Format 2RMD has a pointer function that indicates the position of a valid (in other words, the latest) format 3RMD, and the format 3RMD actually contains information for managing data recording on the optical disc 100. include.
  • format 2RMD includes a linking loss area, common information (Common Information), a pointer to an RMD set (Pointer to RMD Set), and a reserved area.
  • Format 3RMD includes linking loss area, common information, OPC related information (Optimum Power control Related Information), menus (User Specinc Data), recording status It includes information (Recording Status Information), a differential status bitmap (Defect Status Bitmap), drive specific information (Drive Specific Information), and disk testing area information (Disc Testing Area Information).
  • Format 2RMD is recorded in RMD set # 1 at the beginning of each RMA segment to indicate the position of a valid format 3RMD by a pointer to the RMD set.
  • Format 3RMD is recorded at the RMD at the beginning of each RMA segment. Recorded in RMD set (# 2 to # 28) other than set # 1.
  • RMD set # 2 other than the first RMD set # 1 of RMA segment # 1 (or RMD set # Format 3RMD is recorded from 3 to # 28). It is then recorded in the first RMD set # 1 of format 2RMD force RMA segment # 1 to point to the location where format 3RMD is recorded.
  • the format 3RMD is updated. Format 3RMD is overwritten on the same RMD set # 2 every time it is updated or at a specified timing. While overwriting is performed many times, a reading error will occur due to the effect of overwriting exceeding the upper limit of the number of rewrites or the effect of scratches or dirt. And the 5 RMD blocks in RMD set # 2 If format 3RMD cannot be read by multiple RMD blocks, format 3RMD is newly recorded in RMD set # 3 other than RMD set # 2. In this case, the format 2RMD is also updated as the position where the format 3RMD is recorded is changed, and is overwritten on the RMD set # 1.
  • RMD sets # 3 to # 28 If it is determined that the format 3RMD cannot be read for all RMD sets in RMA segment # 1, format 3RMD is newly recorded in RMD set # 2 in RMA segment # 2, and RMA segment # 2 Record a new format 2RMD in RMD set # 1 of 2. Thereafter, this operation is also performed for segments # 2 to # 5.
  • RMA segment # 2 Record format 2RMD and format 3RMD.
  • the format 2RMD and the format 3RMD are used by using the next RMA segment # 2. Record.
  • the recording status information recorded in the field 3 of the format 3RMD is the byte position "0,, the format operation code and the byte position" Format information # 1 (format information 1) from 2 to 5, and format information # 2 (format information 2) from byte position "6 to 9" and last RZone number (from position 256 to 257) Last RZone Number), byte position "258 to 261", RZone start sector number (Start sector number of RZone), and byte position "262 to 265" specific examples of "recording zone end address” in the present invention
  • the end sector number of RZone (End sector number of RZone), the layer position of the L0 layer (Layer Jump address on Layer 0) and the byte position Last recorded address from “516 to 519”, last layer jump address on Layer 0 from byte position “520 to 523” and Neut position “524” 525 “includes a jump interval and an area where other information is recorded.
  • FIG. 6 is a block diagram conceptually showing the basic structure of the information recording / reproducing apparatus 200 in the example.
  • the information recording / reproducing apparatus 200 has a function of recording data on the optical disc 100 and a function of reproducing data recorded on the optical disc 100.
  • the information recording / reproducing apparatus 200 includes a disk drive 300 in which the optical disk 100 is actually loaded and data is recorded and reproduced, and data recording and recording on the disk drive 300 are performed. And a host computer 400 such as a personal computer for controlling playback!
  • the disk drive 300 includes an optical disk 100, a spinner motor 351, an optical pickup 352, a signal recording / reproducing means 353, a CPU (drive control means) 354, a memory 355, a data input / output control means 306, and a bus 357. It is configured.
  • the host computer 400 includes a CPU 359, a memory 360, an operation / display control means 307, an operation button 310, a display panel 311 and a data input / output control means 308.
  • the spindle motor 351 rotates and stops the optical disc 100 and operates when accessing the optical disc 100. More specifically, the spindle motor 351 is configured to rotate and stop the optical disc 100 at a predetermined speed while receiving spindle servo from a servo unit (not shown) or the like.
  • the optical pickup 352 constitutes one specific example of the “recording means” in the present invention together with the CPU 354.
  • a semiconductor laser element (not shown), a collimator lens, and an objective are used to perform recording and reproduction on the optical disc 100. Constrained by the lens. More specifically, the optical pickup 352 irradiates the optical disc 100 with a light beam such as a laser beam at a first power as a read light during reproduction, and at a second ratio as a write light during recording. Irradiate while modulating.
  • the signal recording / reproducing means 353 performs recording / reproduction with respect to the optical disc 100 by controlling the spindle motor 351 and the optical pickup 352 under the control of the CPU 354. More specifically, the signal recording / reproducing means 353 is, for example, a laser diode driver (LD driver). 2) and a head amplifier.
  • the laser diode driver generates a driving pulse and drives a semiconductor laser element provided in the optical pickup 352.
  • the head amplifier amplifies the output signal of the optical pickup 352, that is, the reflected light of the light beam, and outputs the amplified signal.
  • the memory 355 includes general data processing and OPC processing in the disk drive 300, such as a buffer area for recording / reproducing data and an area used as an intermediate buffer when converted to data used by the signal recording / reproducing means 353. Used in.
  • the memory 355 is a program for operating as a recorder device, that is, a ROM area in which firmware is stored, a buffer for temporarily storing recording / playback data, and variables necessary for the operation of the firmware program, etc. RAM area where is stored.
  • a CPU (drive control means) 354 is connected to the signal recording / reproducing means 353 and the memory 355 via the bus 357, and controls the entire disk drive 300 by giving instructions to various control means. Normally, the software or firmware for operating the CPU 354 is stored in the memory 355!
  • the data input / output control means 306 controls external data input / output to / from the disk drive 300 and stores and retrieves data in / from the data buffer on the memory 355.
  • Drive control commands issued from an external host computer 400 connected to the disk drive 300 via an interface such as SCSI or ATAPI are transmitted to the CPU 354 via the data input / output control means 306.
  • recording / reproduction data is exchanged with the host computer 400 via the data input / output control means 306.
  • the operation Z display control means 307 is for receiving and displaying an operation instruction for the host computer 400, and for example, transmits an instruction by the operation button 310 such as recording or reproduction to the CPU 359.
  • the CPU 359 transmits a control command (command) to the disk drive 300 via the data input / output means 308 based on the instruction information from the operation Z display control means 307 to control the entire disk drive 300.
  • the CPU 359 can send a command requesting the disk drive 300 to send the operating status to the host.
  • the operating state of the disk drive 300 during recording or playback can be grasped, so the CPU 359 can display a display panel such as a fluorescent tube or LCD via the operation / display control means 307.
  • the operating state of the disk drive 300 can be output to 311.
  • the memory 360 is an internal storage device used by the host computer 400.
  • a ROM area in which a firmware program such as BIOS (Basic Input / Output System) is stored, an operating system, an operation of an application program, etc.
  • BIOS Basic Input / Output System
  • the RAM area that stores the necessary variables is also configured. Also, it is not shown in the figure via the data input / output control means 308, and may be connected to an external storage device such as a node disk.
  • the disk drive 300 and the host computer 400 in combination as described above is a household device such as a recorder device that records and reproduces video.
  • This recorder device is a device that records a video signal from a broadcast receiving tuner or external connection terminal power on a disc and outputs the video signal reproduced from the disc to an external display device such as a television.
  • the program stored in the memory 360 is executed by the CPU 359 to operate as a recorder device.
  • the disk drive 300 is a disk drive (hereinafter referred to as a drive as appropriate)
  • the host computer 400 is a personal computer or a workstation.
  • a host computer such as a personal computer and the drive are connected via data input / output control means 306 and 308 such as SCSI and ATAPI, and control of the disk drive 300 such as writing software installed in the host computer 400 To do.
  • a specific mode of the recording operation of the information recording / reproducing apparatus 200 according to the present embodiment will be described while showing a state in which data is recorded on the optical disc 100.
  • 7 is an area structure diagram conceptually showing the area structure of the optical disc 100 before data is recorded
  • FIG. 8 is an area of the optical disc 100 when data is recorded only on the L0 layer.
  • FIG. 9 is an area structure diagram conceptually showing the structure
  • FIG. 9 is an area structure diagram schematically showing the area structure of the optical disc 100 when data is recorded in each of the L0 layer and the L1 layer.
  • NWA From the NWA, it is necessary to record data sequentially. On the other hand, data can be recorded randomly (in other words, direct overwrite) in the area where data is recorded.
  • the end of the area where the data is recorded (specifically, in the L0 layer)
  • the address of the outer edge, which is the inner edge of the L1 layer, is shown as the RZone end sector number ("RZone End Address" in Fig. 7).
  • RZone End Address RZone End Address
  • NWA indicates the address next to the end sector number of RZone! /
  • the lead-in area 102 and the lead-out area 118 are displayed.
  • padding data such as predetermined data or “00h” data is recorded.
  • a shifted middle area 106 is formed following the data recorded in the data area 105.
  • padding data is recorded in the shifted middle area 106.
  • padding data is recorded in the area portion of the L1 layer facing the area portion of the data area 105 where the data has been recorded, and a shifted middle area 116 is continuously provided on the outer peripheral side of the recorded padding data. It is formed.
  • padding data is recorded in the shifted middle area 116.
  • the optical disc 100 shown in FIG. 8 (b) is a read-only optical disc (for example, D VD-ROM etc.) and the same area structure. Therefore, compatibility between the optical disk 100 according to this embodiment and the read-only optical disk can be achieved. That is, the optical disc 100 according to the present embodiment can be reproduced by a reproduction-only information reproducing apparatus.
  • a read-only optical disc for example, D VD-ROM etc.
  • Data can be recorded again on the optical disc 100 shown in Fig. 8 (b) by performing an open disc operation. Specifically, the shifted middle area 106 (116) is logically erased from the optical disc 100 by the open disc operation. As a result, new data can be recorded following the data recorded in the data area 105.
  • FIG. 9 (a) data is recorded in the entire data area 105 of the L0 layer, and thereafter, data is recorded in the data area 115 of the L1 layer. Note that the state shown in FIG. 9 (a) indicates that if data larger than the size of the data area 105 of the L0 layer is recorded on the optical disc 100 before the data shown in FIG. It can be realized without any operation.
  • the lead-in area 102 and the lead-out area 118 For example, padding data such as predetermined data or “00h” data is recorded. Further, padding data is recorded in the fixed middle areas 109 and 119.
  • the data area 115 between the lead-out area 118 and the fixed middle area 119 needs to be in a recorded state. Therefore, the lead-out area 11
  • padding data is recorded in the area portion in the unrecorded state.
  • the optical disc 100 shown in FIG. 9B has almost the same area structure as a read-only optical disc (eg, DVD-ROM). Therefore, the optical device according to the present embodiment 100 can be compatible with a read-only optical disc. That is, the optical disc 100 according to the present embodiment can be reproduced by a reproduction-only information reproducing apparatus.
  • a read-only optical disc eg, DVD-ROM
  • the end sector number of the RZone is assigned to the end portion on the inner peripheral side of the data area 115 under the control of the CPU 359 that constitutes a specific example of the “first control means” in the present invention.
  • the disk drive 300 is instructed to set the address (that is, the address at the end of the data area 115 and the address at the end of the area where padding data is recorded).
  • the disk drive 300 records “X3h”, which is the address of the inner peripheral end of the data area 115, in the RMD as the end sector number of the RZone under the control of the CPU 354.
  • partition descriptor Partition Descriptor
  • unlocated space descriptor Unallocated Space Descriptor
  • the structure information is updated.
  • all structures that need to be changed by setting the RZone end sector number to the address of the inner edge of the data area 115 It is preferable to update the information. That is, it is preferable to update all structure information that may cause inconsistencies by setting the end sector number of the RZone to the address of the end portion on the inner circumference side of the data area 115.
  • UDF Specification Revision 2.00
  • OSTA Optical Storage Technology Association
  • the end portion of the area portion where data has been recorded (that is, the area portion indicated by the LRA (Last Recorded Address)) ) Indication power to record various information that needs to be recorded (specifically, AVDP (Anchor Volume Descriptor Pointer) etc.) at the inner edge of the data area 115 of the LI layer Made against 300.
  • the disk drive 300 stores various information that needs to be recorded at the end of the area where data has been recorded, under the control of the CPU 354, on the inner side of the data area 115 of the L1 layer. Record at the end of the.
  • the entire data area 115 of the L1 layer can be suitably recognized. If the end sector number of the RZone is not set to the address of the inner edge of the data area 115 after the compatibility process has been performed, the end sector number of the RZone is the data that has already been recorded. An end portion on the inner periphery side of the area 115 (specifically, “X2h” in FIG. 9B) is shown. For this reason, recording the padding data may cause inconvenience that the area portion of the data area 116 of the L1 layer where the data can be directly overwritten cannot be recognized. In other words, there may be an inconvenience that the area partial force with LBA “Xlh” in FIG.
  • the end sector number of RZone for managing the data recorded on the optical disc 100 on the disc drive 300 side and the data recorded on the optical disc 100 are stored in the host computer. Synchronization with the structure information for management on the 400 side can be suitably maintained. Therefore, even if the end zone number of RZone is set to the address of the inner edge of the data area 115 of the L1 layer during the compatibility process as described above, the data recorded on the optical disc 100 is logically There is no conflict with the file system information to be managed. Therefore, the above-described various benefits can be enjoyed while ensuring a suitable recording operation and reproducing operation.
  • the data has already been recorded even after the end sector number of the RZone is set to the address of the inner edge of the data area 115 of the L1 layer during the compatibility process as described above.
  • Various information to be recorded at the end portion of the area portion can be suitably read. Therefore, The above-mentioned various benefits can be enjoyed while ensuring a suitable recording operation and reproducing operation.
  • the recording operation of recording data in the L1 layer after recording data in the entire LO layer is performed on a VR (Video Recordin g) on a dual-layer DVD-RW, which is one specific example of the optical disc 100.
  • a VR Video Recordin g
  • a dual-layer DVD-RW which is one specific example of the optical disc 100.
  • the power described for the optical disc 100 as an example of the information recording medium and the recorder according to the optical disc 100 as an example of the information recording device is not limited to the optical disc and the recorder.
  • the present invention can also be applied to other high-density recording or various information recording media compatible with high transfer rates and their recorders.
  • the information recording apparatus and method, the computer program, and the information recording medium according to the present invention can be used for an information recording apparatus such as a DVD recorder. Further, the present invention can also be used for information recording devices that are mounted on or connectable to various computer equipment for consumer use or business use.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

La présente invention concerne un dispositif d'enregistrement d'informations (200), qui comprend : des moyens d'enregistrement (352), destinés à enregistrer des données utilisateur sur un support d'enregistrement d'informations (100) doté d'une première couche d'enregistrement (couche L0) et d'une seconde couche d'enregistrement (couche L1) présentant des zones de données utilisateur (105, 115); des moyens de définition (354), destinés à définir une adresse de fin de zone d'enregistrement (adresse de fin zone E) indiquant la fin d'une zone dans laquelle des données utilisateur ont été enregistrées; et des premiers moyens de commande (359), destinés à commander les moyens de définition pour qu'ils définissent une adresse de fin de zone d'enregistrement au niveau de l'adresse de la fin de la zone de données utilisateur de la seconde couche d'enregistrement, lorsque le support d'enregistrement d'informations fait l'objet d'un processus de compatibilité destiné à le rendre compatible avec un support d'enregistrement d'informations dédié à la reproduction et que les zones de données utilisateur des première et seconde couches d'enregistrement sont entièrement occupées par des enregistrements.
PCT/JP2007/052497 2006-02-14 2007-02-13 Dispositif et procédé d'enregistrement d'informations, système d'enregistrement d'informations et programme informatique WO2007094307A1 (fr)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006031740A (ja) * 2004-06-17 2006-02-02 Ricoh Co Ltd 情報記録媒体、記録方法、データ構造、情報記録装置、プログラム及び記録媒体

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006031740A (ja) * 2004-06-17 2006-02-02 Ricoh Co Ltd 情報記録媒体、記録方法、データ構造、情報記録装置、プログラム及び記録媒体

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