WO2005076274A1 - 情報記録媒体、情報記録装置及び方法、コンピュータプログラム - Google Patents
情報記録媒体、情報記録装置及び方法、コンピュータプログラム Download PDFInfo
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- WO2005076274A1 WO2005076274A1 PCT/JP2005/001241 JP2005001241W WO2005076274A1 WO 2005076274 A1 WO2005076274 A1 WO 2005076274A1 JP 2005001241 W JP2005001241 W JP 2005001241W WO 2005076274 A1 WO2005076274 A1 WO 2005076274A1
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Classifications
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Definitions
- the present invention belongs to the technical fields of an information recording medium such as a DVD, an information recording device and method such as a DVD player, and a computer program.
- an information recording medium such as an optical disc such as a compact disc-read only memory (CD-ROM), a compact disc-recordable (CD-R), and a DVD-ROM
- a plurality of recording layers are laminated on the same substrate.
- a multi-layered, double-layered or multi-layered optical disk has been developed. More specifically, the two-layer type optical disc has, as a first layer, a first optical disc positioned closest to the optical pickup (that is, a side closer to the optical pickup) when viewed from the laser beam irradiation side when recording is performed by the information recording apparatus.
- L0 layer it has one recording layer (referred to as “L0 layer” as appropriate in the present application), and further has a semi-transmissive reflective film located on its inner side (ie, farther from the optical pickup power).
- a second recording layer (referred to as “L1 layer” in the present application) located on the back side of the semi-transmissive reflection film via an intermediate layer such as an adhesive layer is further provided.
- a reflective film located at When creating such a multi-layer information recording medium, the L0 layer and the L1 layer are separately formed, and the respective layers are finally bonded together, so that a two-layer type optical disc can be manufactured at low cost. Can be manufactured.
- an information recording apparatus such as a CD recorder for recording such a two-layer type optical disc
- a laser beam for recording is condensed (or irradiated) on the L0 layer, and the L0 layer is condensed.
- the information is recorded on the L1 layer by focusing the laser beam on the L1 layer by recording the information in an irreversible change recording method such as heating or by a rewritable method. Is recorded in an irreversible change recording method by heating or in a rewritable method.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-352469
- the present invention has been made in consideration of, for example, the above-described conventional problems.
- an information recording medium capable of performing a finalizing process more quickly is provided.
- Another object of the present invention is to provide an information recording device and method, and a computer program that causes a computer to function as such an information recording device.
- an information recording medium of the present invention includes a first recording layer and a second recording layer capable of recording recording information, respectively, and a part of the first recording layer.
- a block area which includes a recording area and a partial recording area of the second recording layer at a position opposite to a partial recording area of the first recording layer, and is a unit in which the recording information is recorded. Includes multiple.
- an information recording apparatus of the present invention includes a recording unit that records the recording information on an information recording medium including a first recording layer and a second recording layer capable of recording the recording information. And a plurality of blocks each including a partial recording area of the first recording layer and a partial recording area of the second recording layer at a position facing the partial recording area of the first recording layer.
- an information recording method includes a recording step of recording the recording information on an information recording medium including a first recording layer and a second recording layer capable of recording the recording information. And a partial recording area of the first recording layer and a partial recording area of the first recording layer.
- a first control step of controlling the recording step so as to record the recording information in units of a plurality of block areas each including a part of the recording area of the second recording layer at a position facing each other.
- a computer program of the present invention is a computer program for recording control for controlling a computer provided in an information recording apparatus of the present invention. And function as at least a part of the first control means.
- FIG. 1 is a schematic plan view showing a basic structure of an optical disc having a plurality of recording areas according to an information recording medium to which an information recording apparatus according to a first embodiment of the present invention is applied.
- FIG. 2 is a schematic conceptual view of a cross-sectional view and a recording area structure in a radial direction associated with the cross-sectional view.
- FIG. 2 is a data diagram conceptually showing an example of a data structure of one optical disc according to the first embodiment.
- FIG. 3 is a graph conceptually showing a relationship between a position on a disc and a pre-address value in one optical disc according to the first embodiment.
- FIG. 4 is a diagram for explaining in more detail a data structure of a border-in area and a border-out area of one optical disc according to the first embodiment.
- FIG. 5 is a data diagram conceptually showing an example of a data structure of another optical disc according to the first embodiment.
- FIG. 6 is a graph conceptually showing a relationship between a position on a disk and a pre-address value in another optical disk according to the first embodiment.
- FIG. 7 is a diagram for explaining in more detail a data structure of a border-in area and a border-out area of another optical disc according to the first embodiment.
- FIG. 8 is a diagram conceptually showing an example of a data structure of an optical disc as a second embodiment according to the information recording medium of the present invention.
- FIG. 9 is a block diagram of an information recording / reproducing apparatus as an embodiment according to the information recording apparatus of the present invention.
- FIG. 10 is a flowchart showing a flow of an operation when data is recorded in a fixed-length block area in the information recording apparatus according to the present embodiment.
- FIG. 11 is a flowchart showing a flow of a termination process of a recording operation in the information recording apparatus according to the embodiment.
- FIG. 12 is a flowchart showing a flow of an operation when data is recorded in a variable-length block area in the information recording apparatus according to the present embodiment.
- FIG. 13 is a flowchart showing an operation flow when data is recorded in a block area in which a fixed length and a variable length are combined in the information recording apparatus according to the present embodiment.
- FIG. 14 is a diagram conceptually showing an example of a data structure of an optical disc on which data is recorded by a first modified operation example of the information recording apparatus according to the embodiment.
- FIG. 15 is a diagram conceptually showing an example of a data structure of an optical disc on which data is recorded by a second modified operation example of the information recording apparatus according to the embodiment.
- FIG. 16 is a diagram conceptually showing an example of a data structure of an optical disc on which data is recorded by a third modified operation example of the information recording apparatus according to the embodiment.
- FIG. 17 is a view conceptually showing another example of the data structure of the optical disc on which data is recorded by the third modified operation example of the information recording apparatus according to the embodiment.
- FIG. 18 is a view conceptually showing another example of the data structure of the optical disc on which data is recorded by the second modified operation example of the information recording apparatus according to the embodiment.
- An embodiment according to the information recording medium of the present invention includes a first recording layer and a second recording layer each capable of recording recording information, and a partial recording area of the first recording layer and the first recording layer. And a plurality of block areas, which are units in which the recording information is recorded, as well as a partial recording area of the second recording layer at a position opposing the part.
- the information recording medium of the present invention it is possible to record recording information on each of the first recording layer and the second recording layer.
- the plurality of recording layers are formed in a laminated structure on one surface of the substrate, for example.
- the recording information is recorded in a block area including a part of the recording area of the first recording layer and a part of the recording area of the second recording layer.
- a part of the recording area of the first recording layer and a part of the recording area of the second recording layer face each other.
- “opposite” in the present invention refers to a case where a part of the first recording layer and a part of the second recording layer correspond to each other, that is, when they have addresses having the same positional relationship. However, if it can be regarded that they have substantially the same address, in a broad sense including the relationship between a part of the first recording layer and a part of the second recording layer in consideration of eccentricity and the like as described later. is there.
- a plurality of such block areas are included in the information recording medium. Then, the recording information is recorded for each block area unit. Then, when additional recording information is to be added after the recording operation once completed, the recording information is recorded in a new block area. Since the recording information is recorded for each block area in this manner, the recording information recorded on the first recording layer and the recording information recorded on the second recording layer are recorded. It is possible to make the respective sizes (sizes) of the recorded information substantially uniform. That is, the size or size of the recording area where the recording information is recorded in the first recording layer and the size or size of the recording area where the recording information is recorded in the second recording layer can be made substantially equal. For this reason, compared to an information recording medium on which recording information is recorded on the entire first recording layer and then recording information is recorded on the second recording layer, the size of the area where dummy data must be recorded during the finalizing process is larger. Can be reduced or eliminated.
- the time required for finalization can be reduced, and as a result, the recording operation can be made more efficient. Has advantages.
- At least one of the plurality of block areas includes a management unit for managing the recording information recorded in the at least one block area. It has a management information area in which information is recorded (for example, a border-in area and a border-out area described later) and a data recording area in which the recording information is recorded.
- the size of the data recording area in the first recording layer is equal to the size of the data recording area in the second recording layer. Greater than.
- the size of a part of the recording area of the first recording layer is larger than the size of a part of the recording area of the second recording layer at a position opposed to the part of the recording area.
- At least the last block area of the plurality of block areas is in an unrecorded state in which the record information is not recorded.
- the recording information is always recorded in the entirety of the plurality of block areas, and the recording is performed. It is not necessary. Therefore, it is not necessary to record, for example, dummy data or the like on the entire information recording medium at the time of the finalizing process, and a rapid recording operation can be realized. It is possible to appropriately record recorded information having an arbitrary or predetermined size (that is, data amount) on the information recording medium according to the present embodiment, and to enjoy the various benefits described above. It becomes.
- the “last block area” in the present invention has a meaning of indicating a block area in which recording information is recorded, a recording process is performed, and finally the recording information is recorded or can be recorded. For example, when recording information is recorded from the inner peripheral side to the outer peripheral side of the information recording medium, it means a block area located on the outermost peripheral side.
- dummy data is recorded in at least a last block area of the plurality of block areas.
- the dummy data is recorded on the information recording medium by, for example, finalizing or the like.
- the recorded information can be appropriately reproduced, for example, by a reproduction-only information reproducing apparatus or the like.
- the “dummy data” in the present invention means data different from the data that the user originally wants to record (for example, various content data), and the meaning of the data does not matter.
- the recording information recorded in at least one of the plurality of block areas includes the first recording layer and the second recording layer.
- the buffer layer is adjacent to an interlayer buffer area in which buffer data for buffering a change operation of a recording layer to be recorded is recorded.
- the interlayer buffer area adjacent to the recording information to be recorded that is, adjacent to the data recording area
- a laser is applied to a recording area where no recording information is recorded.
- the inconvenience of light irradiation can be effectively avoided. That is, it is possible to effectively prevent a runaway condition of the optical pickup described later.
- At least one of the plurality of block areas has a fixed length.
- the recording information is appropriately recorded in the block area having a fixed size.
- At least one of the plurality of block areas has a variable length.
- a pre-recording address that defines a position where the recording information is recorded on the information recording medium is composed of the first recording layer and the second recording layer.
- the physical address, which is continuously provided in each of the recording layers and is recorded on the information recording medium together with the recording information, is provided for each of the plurality of block areas (that is, in each of the plurality of block areas. ) Recorded as continuous.
- an information recording medium including a plurality of block areas is used.
- the recording information can be appropriately recorded, and the recorded information can be appropriately reproduced.
- An embodiment of the information recording apparatus of the present invention is a recording means for recording the recording information on an information recording medium having a first recording layer and a second recording layer capable of recording the recording information, respectively, For each unit of a plurality of block areas each including a partial recording area of the recording layer and a partial recording area of the second recording layer opposite to the partial recording area of the first recording layer First control means for controlling the recording means so as to record the recording information.
- the recording information can be recorded on the first recording layer or the second recording layer of the information recording medium by the operation of the recording means.
- the recording unit is controlled by the operation of the first control unit such that the recording information is recorded in units of a block area including a part of the first recording layer and a part of the second recording layer. Is done. Therefore, it is possible to make the sizes of the recording information recorded on the first recording layer and the recording information recorded on the second recording layer substantially uniform. For this reason, compared to recording the recording information on the entire first recording layer and then recording the recording information on the second recording layer, the size of the area where the dummy data needs to be recorded during the finalizing process is reduced. Decreased Can be eliminated or eliminated. As a result, the time required for finalization can be reduced, and as a result, the efficiency of the recording operation can be improved, which has a great advantage.
- the recording information is recorded for each block area, even if the recording information is repeatedly added, the recording information recorded on the first recording layer and the recording information recorded on the second recording layer are different. It is possible to maintain a state where the respective sizes are equal. Therefore, even when recording information is recorded only once or when recording information is additionally recorded, the above-described various benefits can be enjoyed in any case.
- the embodiment of the information recording apparatus of the present invention it is possible to record the recording information for each unit of the block area. Therefore, the time required for the finalizing process on the information recording medium can be reduced, and as a result, the recording operation can be made more efficient or faster.
- the information recording apparatus according to the present invention can also adopt various aspects.
- the first control means is recorded in at least one of the plurality of block areas for each of the at least one block area.
- the recording unit is controlled so as to provide a management information area for recording management information for managing the recording information (for example, a border-in area and a border-out area described later).
- the recording information recording operation on the information recording medium including a plurality of block areas is appropriately performed based on the management information recorded in the management information area provided for each block area. And the ability to properly reproduce the recorded information.
- the first control means may include, from at least one of the plurality of block areas, at least one of the first recording layer and the second recording layer.
- buffer data for buffering the change operation of the recording layer is recorded in each of the first recording layer and the second recording layer, thereby forming an interlayer buffer.
- the recording means is controlled so as to provide an area. According to this aspect, by providing the interlayer buffer area, for example, when reproducing the information recording medium, when the recording information is recorded, the recording area is irradiated with a laser beam, for example. The inconvenience can be effectively avoided.
- the information recording apparatus is further provided with an end work judging means for judging whether or not the information recording medium is taken out from the information recording apparatus, and When it is determined that the information recording medium is to be taken out, the first control means controls the recording means so as to provide the interlayer buffer area.
- the information recording apparatus further includes an eject determination unit that determines whether the information recording medium is removed from the information recording apparatus, and the first control unit includes: When recording the recording information across the first recording layer and the second recording layer, at least one of the plurality of block areas has a size smaller than the interlayer buffer area of a predetermined size.
- the recording means is controlled so as to provide the interlayer buffer area, and when it is determined by the out-of-ejection determination means that the information recording medium is to be taken out, the first control means controls the small size and the small size.
- the recording means is controlled so as to provide the interlayer buffer area of the predetermined size by recording the buffer data following the interlayer buffer area.
- the apparatus further includes size determination means for determining whether the size is larger than the size of one block area. If the size determination means determines that the size is larger than the size of the at least one block area, the first control means: The recording unit is controlled so that the recording information to be recorded is divided and recorded.
- the record information for each block area unit, regardless of the size of the fixed-length block area.
- the information recording apparatus further includes a non-ejection determination unit that determines whether or not the information recording medium is removed from the information recording apparatus.
- the first control means determines that the recording information is recorded in at least a part of the at least one fixed length block area. If not, the recording means may be controlled to record dummy data in at least a part of the block area.
- At least one of the plurality of block areas has a variable length, and the at least one of the plurality of block areas is based on a size of the recording information to be recorded.
- the size of the block area suitable for recording the recording information is determined by the operation of the determining unit in accordance with the size of the recording information to be recorded. Therefore, it is possible to effectively use the recording capacity of the information recording medium.
- the plurality of block areas include at least one fixed-length block area and at least one variable-length block area, Measuring means for measuring the size of the recording information to be recorded; and when the size of the recording information to be recorded measured by the measuring means is equal to or larger than a predetermined size, for example, an interlayer buffer area or border-in. If the area is larger than the area or border-out area, the first control means controls the recording means to record the recording information in the at least one variable-length block area, and the measuring means If the measured size is smaller than the predetermined size, the first control means may control the recording in the at least one fixed length block area. The recording means is controlled so as to record information.
- a predetermined size for example, an interlayer buffer area or border-in.
- the information recording medium includes a pre-recording address that determines a position on the information recording medium where the recording information is recorded.
- a physical address which is continuously provided in each of the recording layer and the second recording layer and is recorded on the information recording medium together with the recording information is provided for each of the plurality of block areas (that is, a plurality of blocks).
- the apparatus further includes address assigning means for assigning addresses so as to be continuous (in each of the areas).
- the pre-recording address is continuously recorded for each recording layer.
- the physical address recorded together with the recording information by the operation of the information recording device is stored in each block area for each of a plurality of block areas by the operation of the addressing means. It is provided so as to be continuously distributed in the area. As a result, an appropriate recording operation can be realized even if recording information is recorded for each of a plurality of block areas.
- a pre-recording address that determines a position on the information recording medium where the recording information is recorded is the first recording address.
- Addressing means which is continuously provided in each of the recording layer and the second recording layer, and provides a physical address to be recorded on the information recording medium together with the recording information in proportion to the pre-recorded address.
- the physical address recorded together with the record information by the operation of the information recording device is assigned by the operation of the address assigning means so as to be proportional to the pre-record address.
- the pre-recording addresses are distributed so as to monotonically increase toward the outer peripheral side
- the physical addresses are also assigned so as to monotonically increase toward the outer peripheral side.
- a pre-recording address for determining a position on the information recording medium where the recording information is recorded is the first recording address.
- a logical address and the recording information which are continuously provided in each of the recording layer and the second recording layer, and are used when at least one of recording and reproduction of the recording information is performed in each of the plurality of block areas.
- At least one of the recording information and reproduction control information for controlling reproduction of the recording information so that the logical address is continuous for each of the plurality of block areas.
- the apparatus further includes second control means for controlling the recording means so as to record one of them.
- the recording information and the reproduction control information are recorded such that the logical address is continuously distributed in each of the plurality of block areas.
- the discontinuity point information By recording the discontinuity point information on the information recording medium, the consistency between the logical address and the physical address can be appropriately obtained by referring to the discontinuity point information during the recording operation or the reproducing operation of the recording information. be able to. This allows multiple block areas Even if recording information is recorded for each key, an appropriate reproducing operation (or recording operation) can be realized.
- a pre-recording address that determines a position on the information recording medium where the recording information is recorded is the first recording address.
- Discontinuity point information indicating a discontinuity point in an address relationship is recorded in advance, and for each of the first recording layer and the second recording layer, a fixed relation with the physical address proportional to the pre-recording address is provided.
- the recording unit is configured to record at least one of the recording information and reproduction control information for controlling reproduction of the recording information using the logical address that is Further comprising a third control means for control.
- recording information or reproduction control information is recorded such that the logical address is proportional to the pre-recording address. That is, the recording information and the reproduction control information are recorded so that the logical address has a fixed relationship with the physical address that is proportional to the pre-address. Further, since the discontinuity point information is recorded in advance on the information recording medium, by referring to the discontinuity point information during the recording operation or the reproducing operation of the recording information, the logical address and the physical address can be appropriately determined. Consistency can be achieved. As a result, even when recording information is recorded for each of a plurality of block areas, an appropriate reproducing operation (or recording operation) can be realized.
- a pre-recording address that determines a position on the information recording medium where the recording information is recorded is a plurality of pre-recording addresses.
- the recording information is provided continuously for each of the block areas, and the recording information is provided so that a logical address used for performing at least one of recording and reproduction of the recording information is continuous for each of the plurality of block areas.
- fourth control means for controlling the recording means so as to record at least one of reproduction control information for controlling reproduction of the recording information.
- the pre-recording address force is determined for each of the plurality of block areas. Even if they are assigned so as to be distributed continuously in the area, the recording information and playback control information are recorded so that the logical address is continuous for each block area. Or, a recording operation) can be realized.
- the information recording medium includes a plurality of pre-recording addresses that determine a position on the information recording medium where the recording information is recorded.
- the recording information and the recording information are provided continuously for each of the block areas so that a logical address used in at least one of recording and reproduction of the recording information is proportional to the pre-recording address.
- the apparatus further includes fifth control means for controlling the recording means so as to record at least one of reproduction control information for controlling reproduction.
- the logical address is proportional to the pre-address accordingly. Since the recording information and the reproduction control information are recorded as described above, an appropriate reproducing operation (or a recording operation) can be realized.
- An embodiment according to the information recording method of the present invention includes a recording step of recording the recording information on an information recording medium including a first recording layer and a second recording layer capable of recording the recording information; For each unit of a plurality of block areas each including a partial recording area of the recording layer and a partial recording area of the second recording layer at a position opposite to the partial recording area of the first recording layer.
- the embodiment of the information recording method according to the present invention can also adopt various aspects.
- the computer is configured to store the information described above.
- the computer program is read from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk that stores the computer program, and is executed by the computer.
- a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk that stores the computer program.
- the computer program is executed after being downloaded to a computer via communication means, the above-described embodiment of the information recording apparatus of the present invention can be realized relatively easily.
- the embodiment of the computer program of the present invention can also adopt various aspects.
- a computer program product in a computer-readable medium is capable of executing a program instruction executable by a computer provided in an information recording apparatus (including its various aspects) of the present invention. And the computer functions as at least a part of the recording unit and the first control unit.
- the computer program product can be read into a computer from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk that stores the computer program product, or
- a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk that stores the computer program product
- the computer program product which is a transmission wave
- the computer program product is obtained from a computer readable code (or a computer readable instruction) that functions as at least a part of the recording unit and the first control unit of the present invention. May be configured.
- the embodiment of the information recording medium of the present invention corresponds to one of the first recording layers. Section and a plurality of block areas including a part of the second recording layer. Therefore, it is possible to record the recording information almost equally in each of the first recording layer and the second recording layer, and as a result, the finalizing process can be performed quickly.
- An embodiment of the information recording apparatus and method of the present invention includes a recording and first control step, or a recording step and a first control step. Therefore, the time required for the finalizing process can be reduced, and as a result, the recording operation can be made more efficient or faster.
- FIG. 1 ( a ) is a schematic plan view showing a basic structure of an optical disc having a plurality of recording areas according to an information recording medium which is an object of the first embodiment of the information recording apparatus of the present invention
- FIG. 1 (b) is a schematic sectional view of the optical disc and a schematic conceptual view of a recording area structure in the radial direction associated with the schematic sectional view.
- an optical disc 100 is formed on a recording surface on a disc body having a diameter of about 12 cm like a DVD, with a center hole 101 as a center.
- a lead-in area 102 (112), a data recording area 105 (115), and a read-head area 108 (118) or a middle area 109 (119) according to the example are provided.
- a recording layer or the like is laminated on the transparent substrate 200 of the optical disc 100, for example.
- tracks such as groove tracks and land tracks are alternately provided in a spiral or concentric manner with the center hole 101 as the center.
- the On this track data is divided and recorded in units called ECC blocks.
- the ECC block is a data management unit based on a preformat address in which recording information can be corrected for errors.
- the present invention is not particularly limited to an optical disk having such three areas.
- the lead-in area 102 (112), the lead-out area 108 (118), or the middle area 109 (119) may have a further subdivided configuration.
- the optical disc 100 according to the present embodiment has, for example, an L0 layer and an example of the first and second recording layers according to the present invention on a transparent substrate. It has a structure in which L1 layers are stacked. At the time of recording / reproduction of such a two-layer type optical disc 100, in FIG. 1 (b), depending on which recording layer the focusing position of the laser beam LB irradiated from the lower side to the upper side is adjusted. Recording or reproduction is performed in the L0 layer or recording and reproduction is performed in the L1 layer.
- the optical disc 100 according to the present embodiment may be a double-layer single-sided, that is, a dual-layer double-sided, which is not limited to a dual layer.
- the present invention is not limited to an optical disk having two recording layers as described above, and may be a multilayer optical disk having three or more layers.
- FIG. 2 is a diagram conceptually showing an example of the data structure of the optical disc according to the first embodiment.
- the optical disc 100 has two recording layers (ie, L0 layer and L1 layer).
- the L0 layer has a lead-in area 102 and a middle area 109
- the L1 layer has a lead-out area 118 and a middle area 119.
- a plurality of block areas exist in each data recording area of the L0 layer and the L1 layer.
- various contents such as movie data and audio data are Data and other various data are recorded for each block area. That is, for example, certain movie data is recorded in block area A, for example, certain music data is recorded in block area B, and for example, certain PC data is recorded in block area C.
- Each block area includes a border area 104, a data recording area 105 (115), and an interlayer, which are specific examples of the “management information area” in the present invention.
- the buffer area 106 (116) includes a border-out area 117, which is a specific example of the “management information area” in the present invention.
- the management information is recorded in the lead-in area 102 (specifically, the control data zone for recording the management information is not included). Provided, so the border-in area 104 is not provided.
- the block area A includes the data recording areas 105a and 115a, the interlayer buffer areas 106a and 116a, and the border-out area 117a.
- the block area B includes a border-in area 104b, data recording areas 105b and 115b, interlayer buffer areas 106b and 116b, and a border-out area 117b.
- the block area C includes a border-in area 104c, data recording areas 105c and 115c, inter-layer buffer areas 106c and 116c, and a border-out area 117c.
- the border-in area 104 is an area in which management information (for example, the latest physical format information described later) for managing data recorded in each block area is recorded. Has a size of several / im toward the outer circumference.
- the border-in area 104 will be described later in detail (see FIG. 4).
- the data recording area 105 (115) is an area where content data and other various data are actually recorded.
- the size of the data recording area 105 (115) is predetermined. It is preferable that the data recording area 105 and the data recording area 115 included in the same block area have a relation of being arranged at the same position or substantially the same position when viewed from the optical pickup side. In other words, it is preferable that the areas have corresponding addresses.
- the interlayer buffer area 106 (116) is an area provided in each of the L0 layer and the L1 layer at a point where the recording layer power to be recorded data is switched from the L0 layer power to the L1 layer.
- interlayer buffer area 106 (116) occupies approximately 0.5 mm in the radial direction in the first block area A, and approximately 0 mm in the subsequent block areas (for example, the block areas B and C). It preferably occupies about 1 mm. However, the size is not limited to this size, and may be any size that can prevent penetration of the optical pickup as described later.
- the border-out area 117 is an area in which various control information for controlling a recording operation when recording data in each block area and a reproduction operation when reproducing the recorded data are recorded.
- the optical disk 100 has a size of about 500 to 100 / im from the inner circumference to the outer circumference.
- the border-out area 117 will be described later in detail (see FIG. 4).
- the content data and various data are recorded in the block area B and the block area C in order from the block area A. Then, in each block area, as shown by the arrow in the figure, data is recorded from the inner peripheral side of the data recording area 105 in the L0 layer, and subsequently recorded from the outer peripheral side of the data recording area 115 in the L1 layer.
- each of the L0 layer and the L1 layer is recorded. It is possible to record data substantially evenly. In other words, the size of the recording area where data in the L0 layer has been recorded and the size of the recording area where data in the L1 layer has been recorded can be made substantially equal. Therefore, at the time of finalization, there is no need to record dummy data in the L1 layer as described above. In other words, an unrecorded state (that is, a mirror state) is sufficient on the outer peripheral side of the midreal area 108 (118). For this reason, the time required for the finalizing process can be reduced, which can contribute to shortening of the recording operation time and improvement of user's comfort.
- the optical pickup searching for a predetermined recording position on the optical disc 100 It is possible to prevent penetration of laser light (irradiated from the optical pickup).
- penetration means that, for example, when only the block area A is provided on the optical disc 100 and the data recording area 105a is being searched, the search target jumps over the data recording area 105a. Indicates that the data jumps to an unrecorded (eg, mirror area) area. Such penetration of the optical pickup may lead to a runaway of a recording operation or a reproducing operation thereafter, and is not preferable.
- the interlayer buffer area 106 (116) having a predetermined radial width (for example, 0.5, mm, or 0.1 mm as described above) is provided at the boundary, so It is possible to appropriately prevent penetration.
- the interlayer buffer area 106 (116) when performing a "jump between layers", which is a change operation for changing the recording layer to be recorded between the L0 layer and the L1 layer, the two recording layers are pasted. Due to misalignment, eccentricity, or misalignment of the irradiation position of the laser beam, it is possible to prevent the laser beam from entering an area where data is not recorded after the interlayer jump.
- the size of the data recording area 105 in the L0 layer may be made larger than the size of the data recording area 115 in the L1 layer in consideration of, for example, the influence of eccentricity or the like. The same can be said for each block area. Particularly in this case, it is preferable that the data recording area 115 in the L1 layer is arranged only at a position corresponding to the data recording area 105 in the L0 layer. As a result, when data is recorded on the L1 layer, the laser beam can always be irradiated through the L0 layer on which the data has been recorded. Improvement can be achieved.
- the direct middle areas 109 and 119 without providing the interlayer buffer areas 106c and 116c provided in the block area located at the outermost periphery are provided. It may be configured to be provided. In addition, it is not always necessary to record various content data and the like in all these block areas. In this case, a middle area may be provided on the outermost peripheral side of the area where data is recorded (that is, the outer peripheral side of the middle area is in a mirror state), or the data is recorded. It may be configured to record dummy data (for example, data “00h”) in the non-existent area.
- FIG. 3 is a graph conceptually showing the relationship between the position on the optical disk according to the first embodiment and the pre-address value and the physical address value.
- the pre-address indicates a unique address assigned to the optical disc 100 in advance.
- the physical address indicates a unique address that is recorded together with data at each recording position on the optical disk, and indicates an address used when the drive of the information recording / reproducing apparatus records or reproduces data.
- the logical address indicates an address that is actually used when the host of the information recording / reproducing apparatus records or reproduces data.
- the logical address is a series of consecutive values in one block area.
- the pre-address of the optical disc 100 increases in the L0 layer as the force moves from the inner circumference to the outer circumference.
- the address value decreases as the force moves from the inner circumference to the outer circumference.
- the address value of the L0 layer and the address value of the L1 layer at the same radial position have a complementary relationship with each other.
- the pre-addresses are continuously distributed in the optical disc 100, the pre-addresses are also continuously distributed in the individual block areas.
- the pre-addresses may not be continuously distributed in the optical disc 100, and may be continuously distributed in each block area.
- the address may be assigned so as to take a continuous address value in one block area.
- the physical address shown in FIG. 3 (c) in the L0 layer in one block area, the physical address first monotonically increases from the inner side to the outer side. Then, at the recording position where the interlayer jumps from the L0 layer to the L1 layer, the physical address of the L1 layer is assigned so that the last physical address of the L0 layer and the first physical address of the L1 layer are continuous. Then, in the L1 layer in one block area, the physical address is assigned such that the physical address monotonically increases from the outer peripheral side to the inner peripheral side as the directional force increases, while maintaining continuity with the L0 layer.
- this physical address indicates a logical address
- the last sector one address in the L1 layer (that is, the last sector one address of the middle area 116) is subtracted from the sector one address at that point, and the last logical address in the L0 layer is obtained.
- the logical address at the last point of the middle area 106) is the logical address.
- the logical address need not be provided so as to be continuously distributed in one block area, but may be provided in proportion to the pre-address, for example, like the physical address.
- information indicating a discontinuity between the logical address and the physical address is recorded in the border-in area 104 or the border-out area 117.
- the boundary between the two interlayer buffer areas in each block area corresponds to this discontinuous point.
- the information recording / reproducing apparatus described later refers to the position information indicating the discontinuous store, and records or reproduces the data while maintaining the consistency of the relationship between the pre-address and the physical address and the logical address. be able to.
- Such a discontinuity may be recorded in advance on the optical disk 100, or may be recorded on the optical disk 100 by an information recording / reproducing apparatus described later.
- FIG. 4 is a diagram for explaining in more detail the data structure of the border-in area and the border-out area of the optical disc according to the first embodiment.
- a border of a block area (ie, block area B in FIG. 2) including the data recording area 105b (115b) is defined based on a predetermined data recording area 105b (115b).
- the in-area 104b and the border-out area 117a of the block area (ie, the block area A) located immediately before the block area form a pair to form one border zone.
- updated physical format information which is a specific example of "management information" in the present invention, is recorded.
- the latest physical format information is information that is recorded in the lead-in area 102 and indicates data distribution information (for example, mapping information) in the data recording area 105 (115).
- the latest physical format information recorded in the border-in area 104b does not indicate the data distribution information in the entire data recording area 105 (115), but at least the data distribution information in the corresponding data recording area 105b (115b). May be configured as shown in FIG.
- the latest physical format information has a size corresponding to 5 ECC blocks. However, it is not limited to this size.
- the border-out area 117a is a first border-out area having the same size.
- the RMD copy is information for managing data recording and includes the same information as the RMD (Recording Management Data) recorded in the lead-in area 102. .
- This RMD copy provides information (for example, information for reproducing various data recorded in each block area to a DVD-ROM drive that cannot read the RM (Recording Management) area in the DVD-R lead-in area 102). That is, it is possible to provide RMD).
- the stop block includes flag information having a size of, for example, 2 ECC blocks, and indicates whether or not data is recorded in the border-out area 117a and thereafter. That is, if the information reproducing apparatus that reproduces the data recorded on the optical disc 100 determines that the data is not recorded by the stop block, the area thereafter is not read.
- the next border marker is indicated by recording, for example, three pieces of data, for example, two ECC blocks in size.
- the next border marker is information used by an information recording device that records data on the optical disc 10 o. Specifically, when further data is recorded following the border-out area 117a, predetermined data (for example, "00h") is recorded as a next border marker. On the other hand, when no further data is recorded following the border-out area 117a, the border-out area 117a_2 is in a mirror state (that is, an unrecorded state).
- the optical disk is not limited to the optical disk of the opposite track path type as described above, and may be an optical disk of a parallel track path type as shown in FIG. 5, for example.
- a parallel track path type optical disc will be described as a modification of the optical disc according to the first embodiment.
- FIG. 5 is a data structure diagram conceptually showing an example of the data structure of the optical disc according to the modification
- FIG. 6 is a diagram showing the position on the disc and the pre-address value in the optical disc according to the first embodiment
- FIG. 7 is a diagram conceptually showing the relationship between the border zone and the physical address value.
- FIG. 7 is a diagram illustrating the data structure of the border zone of the optical disc according to the modification in more detail.
- data is recorded for each block area on the optical disk 100a of the parallel track path system, similarly to the optical disk 100 of the opposite track path system.
- the data structure in each block area is also the same as the optical track path type optical disk. It has the same configuration as 0. Then, data is recorded from the inner peripheral side of the data recording area 105a in the L0 layer, and then data is recorded from the inner peripheral side of the data recording area 115a in the L1 layer.
- the preaddress increases from the inner circumference side to the outer circumference side.
- the physical address may be assigned to each recording layer such that the physical address increases from the inner peripheral side to the outer peripheral side as the heading force increases.
- the physical addresses may be assigned so as to be continuously distributed within one block area.
- the logical address takes a continuous value within one block area. Specifically, the logical address increases continuously in the direction indicated by the arrow in FIG. 5, and the logical address is continuous between the last point of the interlayer buffer area 106 and the first point of the interlayer buffer area 116. Become.
- the data structure in the border-in area 104 and the border-out area 117 of the parallel track path type optical disk 100a is the same as that of the opposite track path type optical disk 100. Then, a border-in area 104b including management information of a certain data recording area 115b and a border-out area 117a recorded before the border-in area 104b are combined to form one border zone.
- the optical disc 100 according to the first embodiment since various data are recorded for each block area, the L0 layer and the L1 layer It becomes possible to record data substantially equally in each case. Therefore, the time required for the finalizing process can be shortened, which can contribute to shortening of the recording operation time and improvement of user's comfort.
- FIG. 8 is a diagram conceptually showing an example of the data structure of the optical disc according to the second embodiment.
- the optical disc 100b according to the second embodiment is also the optical disc 100 according to the first embodiment. It has a data structure similar to that of 100. That is, the data recording area 105 (115) is divided into a plurality of block areas, and each block area includes a border-in area 104, a data recording area 105 (115), a border-out area 117, and an interlayer buffer area 106 ( 116
- the data recording area 105 (115) in each block area has a variable length. More specifically, the size of the data recording area 105 (115) in each of the block area A, the block area B, and the block area C is different.
- the size of the data recording area 105 (115) in each block area may be determined, for example, by the size of data to be recorded on the optical disc 100b, as described later. Alternatively, it may be determined by a user who uses the optical disc 100b.
- the optical disc according to the second embodiment has the advantages of the optical disc according to the first embodiment, and also has an excellent advantage that the recording capacity of the optical disc can be effectively used.
- FIG. 9 is a block diagram of the information recording / reproducing apparatus 300 according to the embodiment of the present invention.
- the information recording / reproducing apparatus 300 records the recording data on the optical disc 100. And a function of reproducing recorded data recorded on the optical disc 100.
- the information recording / reproducing apparatus 300 includes the optical disc 100, the spin-dowel motor 351 and the optical pickup 3.
- a signal recording / reproducing means 353 a signal recording / reproducing means 353, a CPU (drive control means) 354, a memory 355, a data input / output control means 306, an operation button 310, a display panel 311, and a bus 357.
- the spindle motor 351 rotates and stops the optical disc 100, and operates when accessing the optical disc. 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 is a specific example of “recording means” in the present invention, and performs recording and reproduction on the optical disk 100, and includes a laser device and a 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 reading light at the time of reproduction, and modulates it at a second power as writing light at the time of recording. While irradiating.
- a light beam such as a laser beam
- the signal recording / reproducing means 353 performs recording / reproducing on the optical disc 100 by controlling the spindle motor 351 and the optical pickup 352.
- the memory 355 is used for all data processing in the disk drive 300, such as a buffer area for recording / reproducing data and an area used as an intermediate buffer when converting the data into data used by the signal recording / reproducing means 353. .
- the memory 355 has a ROM area for storing a program for operating these recorder devices, a RAM area for storing a buffer used for compression / expansion of video data, and a RAM area for storing variables necessary for the program operation. Is done.
- the 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 information recording / reproducing apparatus 300 by giving an instruction to each control means. .
- software for operating the CPU 354 is stored in the memory 355. ing.
- the data input / output control means 306 controls data input / output from / to the information recording / reproducing device 300 from outside, and stores and retrieves the data into / from the data buffer on the memory 355.
- data input / output is a video signal
- externally received data is compressed (encoded) to the MPEG format and output to the memory 355 at the time of data input, and the MPEG format received from the memory 355 at the time of data output. Expands (decodes) the data from and outputs it to the outside.
- the operation control means 307 is for receiving and displaying an operation instruction to the information recording / reproducing device 300.
- the operation control means 307 transmits an instruction by an operation button 310 such as recording or reproduction to the CPU 354, and the operation of the information recording / reproducing device 300 during recording or reproduction.
- the operating state is output to a display panel 311 such as a fluorescent tube.
- a home device which is an example of the information recording / reproducing device 300, is 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 an external connection terminal on a disc, and outputs a video signal reproduced from the disc to an external display device such as a television.
- the operation as a recorder device is performed by causing the CPU 354 to execute the program stored in the memory 355.
- FIG. 10 is a flowchart showing a flow of an operation when recording data in a fixed-length block area
- FIG. 11 is a flowchart showing a flow of an end process of the recording operation
- FIG. FIG. 13 is a flowchart showing an operation flow when data is recorded in a variable-length block area.
- FIG. 13 shows an operation flow when recording data in a block area in which a fixed length and a variable length are combined. It is a flowchart shown.
- the operation of the CPU 354 which is a specific example of “size determining means” in the present invention, firstly sets the size of data to be recorded in the recording operation to a block area. It is determined whether or not it is larger than the size (step S101).
- step S101 when it is determined that the size of the block area is larger (step S101: No), under the control of the CPU 354, which is a specific example of the “first control means” of the present invention, Data to be recorded is recorded in a part of the block area (step S102). At this time, if the data to be recorded spans the L0 layer and the L1 layer, the above-mentioned interlayer buffer area 106 (116) is created. At this time, when data is recorded in a block area other than the innermost block area (that is, the block areas B and C in FIG. 2), an area corresponding to the border-in area 104 is left empty. Record the data to be recorded.
- a border close process is performed. Specifically, the above-described border-in area 104 and border-out area 117 are created, and various necessary information and the like are recorded (step S103).
- various data be recorded under the control of the CPU 354 as a specific example so that the consistency between the pre-address, the physical address, and the logical address is maintained. That is, for example, when data is recorded on the optical disc 100 of the opposite track path method, it is preferable that various addresses are distributed as shown in FIG. 3, for example. In this case, it is preferable that various addresses are distributed as shown in FIG. 6, for example.
- step S101 when it is determined that the size of the data to be recorded is larger (step S101: Yes), it is an example of the “first control means” in the present invention.
- a part of the data to be recorded is recorded in the entire one block area (for example, the block area A in FIG. 2) (step S104). Then, a border close process is performed in one block area (step S105).
- step S106 the remaining unrecorded data to be recorded is recorded in a part of another block area (eg, block area B in FIG. 2) (step S106). Then, a border close process is performed in another block area (step S107).
- each block area is 2 GB and the data to be recorded is 3 GB, 2 GB of data is recorded in one block area and the other block area is recorded. Records 1GB of data.
- dummy data is recorded in a recording area where no data is recorded in the block area used in the recording operation (step S108).
- “00h” data may be recorded as the dummy data.
- the process of recording the dummy data may be performed simultaneously with the border closing process in step S107.
- data may be recorded further continuously than recording dummy data.
- step S109 it is determined whether or not the recording operation is to be ended, for example, by the operation of the CPU 354 (step S109). That is, it is determined whether or not all data to be recorded in the recording operation has been recorded.
- Step S109: No when it is determined that the recording operation is not completed (Step S109: No), the process returns to Step S101 again, and further records data to be recorded. On the other hand, if it is determined that the recording operation is to be ended (step S109: Yes), a recording operation end process is performed (step S110).
- the CPU 354 determines whether or not to perform a finalizing process (step S201).
- a finalizing process for example, a DVD-R / R W optical disc which is recorded by the information recording apparatus of the recorder or the like, for example DVD- is a process for enabling the reproduction at the information reproducing apparatus of the ROM player or the like.
- step S201 If it is determined that the finalizing process is to be performed (step S201: Yes), the finalizing process is performed under the control of the CPU 354 (step S202). Specifically, various management information and the like necessary for the lead-in area 102 and the lead-out area 108 are recorded. Then, middle areas 109 and 119 are created on the outermost peripheral side of the area where the data is recorded. For example, “00h” data is recorded in the middle area 109 and 119.
- substantially equal data is recorded in each of the L0 layer and the L1 layer by the operations from Step S101 to Step S107 in FIG. That is, data is recorded up to substantially the same radial position of each of the L0 layer and the L1 layer.
- data is recorded up to substantially the same radial position of each of the L0 layer and the L1 layer.
- a middle area or an interlayer buffer area
- step S201 determines whether or not to judge the optical disc. It is determined whether or not it is (step S203). For example, it may be determined that the ejection is performed when the user of the information recording / reproducing apparatus 300 instructs the ejection.
- step S203 if it is determined that the optical disk is to be ejected (step S203: Yes), the optical disk is ejected from the information recording / reproducing device 300 (step S204).
- step S301 the data size of the data to be recorded in the recording operation is obtained (step S301).
- the size of the block area required for recording the data is determined by the operation of the CPU 354, which is a specific example of the “determining means” of the present invention (step S302). Specifically, the sum of the size required for the border-in area 104 and the border-out area 117, the size of the data recording area 105 (115) required for recording the relevant data, and the size of the interlayer buffer area 106 (116) The required block area size is assumed.
- step S303 data to be recorded is recorded in this block area
- step S103 a border close process
- step S109 and step S110 in Fig. 10 it is determined whether or not the recording is to be ended, and the recording operation end processing is performed.
- the size of data to be recorded is obtained (step S301).
- a predetermined size is a parameter serving as a criterion for determining whether the data to be recorded is recorded in a variable-length block area or a fixed-length block area. For example, if the data to be recorded is larger than 5 KB, it is recorded in a variable-length block area, and if it is less than 5 KB, it is determined that the data is recorded in a fixed-length block area.
- predetermined size may be determined in advance by the manufacturer or the like of the information recording device 1, or may be determined for each determination operation or in advance by the CPU 354 or a user of the information recording device 1. Is also good.
- step S401 when it is determined that the size of the data to be recorded is larger than the predetermined size (step S401: Yes), the data to be recorded is recorded in the variable-length block area (step S401).
- step S401 the data to be recorded is recorded in the variable-length block area (step S401).
- step S402 The recording operation to the variable-length block area here is preferably performed in the same manner as the recording operation described with reference to FIG. That is, it is preferable to determine the size of the block area according to the size of the data to be recorded.
- step S401: No when it is determined that the size of the data to be recorded is not larger than the predetermined size (step S401: No), the data to be recorded is recorded in a fixed-length block area (step S403).
- the recording operation to the fixed-length block area is preferably performed in the same manner as the recording operation described with reference to FIG. That is, it is preferable that the data is appropriately divided and recorded according to the size of the data to be recorded and the size of the block area.
- step S109 it is determined whether or not to end the recording operation (step S109), and the recording operation is continued or a recording operation end process is performed (step S110).
- FIG. 14 is an explanatory view conceptually showing a data structure of an optical disc on which data is recorded by the first modified operation example.
- the smaller interlayer buffer area is smaller than the interlayer buffer area created during the normal operation shown in FIG. 10 or FIG. Create area 106 (116).
- an interlayer buffer area having a length of 0.5 mm is created, an interlayer buffer area having a length shorter than 0.5 mm (for example, 0.1 lm m or 0.25 mm) is used. 116) is created.
- an interlayer buffer area 106 (116) having a length shorter than 0.1 mm is created.
- the data to be recorded is recorded with a predetermined blank area so that an interlayer buffer area having a normal length can be created later.
- an additional interlayer buffer area is provided so as to have an interlayer buffer area having a normal length (ie, 0.5mm or 0.1mm).
- the key 110 (120) is created.
- FIG. 15 is an explanatory diagram conceptually showing a data structure of an optical disc on which data is recorded according to the second modified operation example.
- the interlayer buffer area 106 (116) is not created before the ejection operation is performed in step S204 of FIG.
- the area where the interlayer buffer area 106 (116) is originally created (the shaded area in FIG. 15 (a)) records 00h "data as described above.
- an eject operation is performed, an interlayer buffer area 106 (116) is created, and specifically, "00h" data is recorded.
- FIGS. 16 to 18 are explanatory diagrams conceptually showing the data structure of the optical disc on which data is recorded according to the third modified operation example.
- the last block area C is in an unrecorded state where no data is recorded.
- the information recording / reproducing apparatus 300 identifies that the optical disk 100e is the optical disk according to the present embodiment (that is, the optical disk having a plurality of block areas), and information capable of appropriately recording data in the plurality of block areas.
- the configuration may be such that an attribute for fulfilling the function as the above-mentioned middle area is added to the interlayer buffer area 106b (116) b in the block area B immediately before the block area C.
- a middle area 109 (119) may be newly provided following the block area B immediately before the block area C.
- the address (eg, physical address) of the last sector of the L0 layer is recorded in advance, data is not recorded according to the size of data to be recorded as in the third modified operation example. It is particularly effective to provide a block area (that is, it is not necessary to record data in the entire data recording area 105).
- dummy data such as “00h” may be recorded in an area where data is not recorded.
- the optical disk 100 is described as an example of the information recording medium, and the recorder or player related to the optical disk 100 is described as an example of the information recording / reproducing apparatus.
- the present invention is not limited to this, and can be applied to various other information recording media compatible with high-density recording or high transfer rate, and a recorder or player thereof.
- the present invention is not limited to the embodiments described above, and may be modified as appropriate without departing from the spirit or spirit of the invention which can be read by the claims and the entire specification.
- An information recording medium, an information recording device and method, and a computer program for recording control are also included in the technical scope of the present invention.
- the information recording medium, the information recording apparatus and the method, and the computer program according to the present invention include, for example, an information recording medium such as a DVD, an information recording apparatus and a method such as a DVD player, and a computer.
- the present invention can also be used for a recording device or the like which is mounted on or connected to various consumer or business computer devices.
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Abstract
Description
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Priority Applications (3)
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JP2005517660A JP4406404B2 (ja) | 2004-02-04 | 2005-01-28 | 情報記録媒体、情報記録装置及び方法、コンピュータプログラム |
EP05709467A EP1722365B1 (en) | 2004-02-04 | 2005-01-28 | Information recording device and method, and computer program |
US10/588,303 US7701831B2 (en) | 2004-02-04 | 2005-01-28 | Information recording medium, information recording apparatus and method, and computer program |
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JP2004-028247 | 2004-02-04 | ||
JP2004028247 | 2004-02-04 |
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WO2005076274A1 true WO2005076274A1 (ja) | 2005-08-18 |
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PCT/JP2005/001241 WO2005076274A1 (ja) | 2004-02-04 | 2005-01-28 | 情報記録媒体、情報記録装置及び方法、コンピュータプログラム |
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US (1) | US7701831B2 (ja) |
EP (1) | EP1722365B1 (ja) |
JP (1) | JP4406404B2 (ja) |
KR (1) | KR101041063B1 (ja) |
CN (1) | CN100527254C (ja) |
WO (1) | WO2005076274A1 (ja) |
Cited By (2)
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JP2012084223A (ja) * | 2011-12-08 | 2012-04-26 | Toshiba Corp | 情報記録再生装置及びデータ管理方法 |
WO2014104399A1 (ja) | 2012-12-27 | 2014-07-03 | 日本電気株式会社 | 情報記録再生装置及び記録再生方法 |
Families Citing this family (3)
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EP1814110B1 (en) * | 2004-10-04 | 2010-04-14 | Pioneer Corporation | Information recording device and method, and computer program |
JPWO2006112471A1 (ja) * | 2005-04-19 | 2008-12-11 | パイオニア株式会社 | 2層記録ディスクのための記録装置および記録方法 |
US20090135707A1 (en) * | 2005-10-20 | 2009-05-28 | Pioneer Corporation | Information recording device and method, computer program and information recording medium |
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Also Published As
Publication number | Publication date |
---|---|
JP4406404B2 (ja) | 2010-01-27 |
EP1722365B1 (en) | 2012-11-21 |
US7701831B2 (en) | 2010-04-20 |
CN100527254C (zh) | 2009-08-12 |
CN1918653A (zh) | 2007-02-21 |
US20070128545A1 (en) | 2007-06-07 |
EP1722365A4 (en) | 2010-10-13 |
KR20070007304A (ko) | 2007-01-15 |
KR101041063B1 (ko) | 2011-06-13 |
EP1722365A1 (en) | 2006-11-15 |
JPWO2005076274A1 (ja) | 2007-10-18 |
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