WO2005093728A1 - 情報記録媒体、情報記録装置及び方法、並びに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、並びにコンピュータプログラム Download PDFInfo
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- WO2005093728A1 WO2005093728A1 PCT/JP2005/005872 JP2005005872W WO2005093728A1 WO 2005093728 A1 WO2005093728 A1 WO 2005093728A1 JP 2005005872 W JP2005005872 W JP 2005005872W WO 2005093728 A1 WO2005093728 A1 WO 2005093728A1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
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- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
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- 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
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- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
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- 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
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- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
- G11B2220/2566—DVDs belonging to the minus family, i.e. -R, -RW, -VR
Definitions
- Information recording medium information recording apparatus and method, and computer program
- the present invention relates to a technical field of an information recording medium such as a DVD, an information recording apparatus and method such as a DVD recorder, and a computer program.
- information recording media such as CDs (Compact Discs) and DVDs are used to prevent unauthorized copying and falsification of management or control information.
- Embossed pits or pits formed by irradiation with a recording laser were previously formed in the minimum necessary area of the in-area.
- Patent Document 4 when recording information in a lead-out area, a recording apparatus is controlled so that a high-speed recording operation can be performed by changing a recording strategy of a recording laser beam. There is also technology to do.
- Patent Document 5 there is a technique for controlling a recording apparatus that minimizes the length of a lead-out area while maintaining compatibility with a ROM disk.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2001-266362
- Patent Document 2 JP-A-2000-331412
- Patent Document 3 JP 2001-176079 A
- Patent Document 4 JP 2003-151133 A
- Patent Document 5 Japanese Patent Application Laid-Open No. 2003-157620
- Patent Document 6 JP-A-2002-170339 Disclosure of the invention
- the starting position and the like are determined only in the lead-in area. Since the start position of the lead-out area cannot be determined, pits cannot be formed in advance by embossing or irradiation of a recording laser.
- the present invention has been made in view of the above-described problems. For example, it is possible to efficiently record information on each recording layer of a multi-layer information recording medium and to reduce the recording time. It is an object to provide an information recording medium, an information recording apparatus and method, and a computer program capable of shortening the time.
- the first information recording medium of the present invention has a first recording layer (L 0) on which at least a first recording track path (group: guide groove) for recording recording information is formed. Layer), and a second recording track path (group: guide groove) for recording the recording information is disposed on the first recording track path (group: guide groove).
- the first buffering area (lead-out area) for prevention is formed by embossed pits (for DVD-RW) or pits (for DVD-R) irradiated by recording laser, and Formed in advance.
- the first and second recording layers are laminated on one surface of a disk-shaped substrate, and a double-layer or multilayer DVD, for example, Or an optical disk.
- recording information such as audio, video information or content information can be recorded along a first recording track path composed of groups (guide grooves).
- recording information such as audio, video information or content information can be recorded along a second recording track path composed of groups (guide grooves).
- the first recording track path goes from one side of the inner and outer sides of the disk-shaped substrate to the other side. 2
- the recording track path goes from the other side to one side. That is, in the two-layer or multi-layer information recording medium, continuous recording can be performed by the “positive method” in which the recording track path is directed in the opposite direction between the two recording layers. Therefore, recording is performed at the end end of the first recording layer, that is, at the other end such as the outer end, and then at the start end of the second recording layer, that is, at the other end such as the outer end.
- the irradiation position of the laser beam on the substrate surface can be changed little or no in the radial direction.
- a quick interlayer jump that is, an interlayer switching operation
- the first information recording medium in particular, for example, when the information recording medium is a DVD-RW, one end of the second recording layer, such as the inner peripheral end, is provided with respect to the second recording layer.
- the first buffer for the lead-out area is used.
- the area is formed in advance as a pre-recording area by emboss pits.
- the first buffer area is formed in advance as a pre-recording area by pits irradiated by a recording laser.
- writing means such as an optical pickup of the information recording apparatus described later performs, for example, a finalizing process when the last information of the recorded information is written or written.
- a first buffering area which is a lead-out area previously formed as a pre-recording area at one end such as an inner peripheral end of the second recording layer. It is only necessary to add buffer data to the start position of the area. Therefore, it is possible to omit the addition of buffer data to the entire first buffer area, which is the lead-out area, during the finalization processing, and it is possible to greatly reduce the time required for the finalization processing.
- the recording operation time can be shortened and comfortable use by the user can be realized.
- An optical disk such as a dual-layer DVD-R or RZW that has been finalized as described above can normally control a tracking servo by an optical pickup of a general DVD-ROM playback-dedicated drive. DVD-ROM compatibility is achieved. Therefore, the optical disc such as the double-layer DVD-R or RZW can be reproduced by a general DVD-ROM reproduction-dedicated drive.
- the second information recording medium of the present invention has a first recording layer (L 0) on which at least a first recording track path (group: guide groove) for recording recording information is formed. Layer), and a second recording track path (group: guide groove) for recording the recording information is disposed on the first recording track path (group: guide groove).
- a second recording layer (L1 layer) formed in the same direction as the first recording layer and the other end of the first recording layer and the second recording layer.
- the configuration is substantially the same as that of the first information recording medium.
- the first and second recording layers are laminated on one surface of a disk-shaped substrate.
- the two-layer type or! Is a multi-layer type such as a DVD or an optical disk.
- the first recording track path is directed, for example, from one of the inner side and the outer side of the disk-shaped substrate to the other side. Also, As in the case of the first recording track path, the recording is performed from one side to the other side. That is, in the two-layer or multi-layer information recording medium, the recording track path is directed in the same direction between the two recording layers, thereby enabling continuous recording by the "parallel method". In this "parallel method"
- the optical pickup at the outermost periphery of the optical disk moves again toward the innermost periphery. Therefore, the switching time from the first recording layer to the second recording layer is longer than that of the "opposite method".
- the first and second recording layers have the first and second recording layers with the first and second recording layers on the other end, respectively. Preventing the position for recording, reproduction, or search for reproduction on the second recording layer from deviating from the substrate, that is, preventing the position from deviating from the first or second recording layer, and a plurality of layers.
- the pre-recording area is formed in advance by the first buffer area emboss pit which is the lead-out area.
- the first buffer area is formed in advance as a pre-recording area by pits irradiated by a recording laser.
- the last information of the recorded information is written or finalized by writing means such as an optical pickup of the information recording apparatus described later.
- a lead-out area which is formed in advance as a pre-recording area at the other end such as the outer peripheral end of the first and second recording layers. It is only necessary to add buffer data to the start position of one buffer area. Therefore, similarly to the first information recording medium, it is possible to omit the addition of buffer data to the entire first buffer area, which is a lead-out area, in the finalizing process, and it is possible to reduce the time required for the finalizing process. The recording time can be greatly reduced, and the recording operation time can be shortened and comfortable use by the user can be realized.
- the other read located on one side of the first buffer area, for example.
- Buffer data may be added up to the minimum address value required to form the out area.
- the other readout area and the first buffer area There is no problem because the outer peripheral side of the other lead-out area may record anything in the unrecorded state, that is, the area in the mirror state.
- the third information recording medium of the present invention includes a recording layer on which a recording track path (group: guide groove) for recording recording information is formed.
- a first buffering area (lead-out area) for preventing a recording or reproducing position from deviating from the recording layer has an embossed pit (in the case of DVD-RW), or A pit (in the case of DVD-R) by irradiation of a recording laser is formed in advance as a pre-recording area.
- a recording layer is laminated on one surface of a disk-shaped substrate, and is a single-layer type such as a DVD or an optical disk.
- the recording track path goes, for example, from one of the inner side and the outer side of the disk-shaped substrate to the other side.
- the other end of the recording layer is used to record, reproduce, or read data from or to the recording layer.
- the readout area is used to prevent the position for the search for reproduction from coming out of the substrate, that is, to prevent the recording layer force from being deviated, and to jump between layers when continuously reproducing a plurality of layers.
- the first buffer area is formed in advance as a pre-recording area by emboss pits.
- the first buffer area is previously formed as a pre-recording area by pits irradiated by a recording laser.
- writing means such as an optical pickup of the information recording apparatus described later performs, for example, finalization processing when the last information of the recording information is written or written. From the end position of the last written information, the start of a first buffer area, which is a read-out area formed in advance as a pre-recording area at the other end of the recording layer such as the outer peripheral end. It is only necessary to add buffer data to the position. Therefore, similarly to the first and second information recording media, it is not necessary to add buffer data to the entire first buffer area, which is a lead-out area, during the finalizing process. This makes it possible to significantly reduce the time required for the finalizing process, thereby shortening the recording operation time and achieving comfortable use by the user.
- the minimum necessary for forming another lead-out area located on one side of the first buffer area for example, from the address value of the end position of the recording information in the recording layer.
- Buffer data may be added up to an appropriate address value.
- there is an unrecorded state between the other lead-out area and the first buffering area that is, a force that causes an area in a mirror state. No.
- a control data zone is further provided as another pre-recording area in a lead-in area accessed before the recording information is recorded.
- Identification information (flag) force indicating that the first buffering area is formed in advance is recorded in the control data zone.
- a flag or the like is stored at the time of recording or reproducing operation by the information recording device described later, for example, by an optical pickup or the like, prior to the actual reproducing or recording operation, in addition to various management or control information, a flag or the like is stored.
- the identification information is read from the control data zone in the lead-in area of the information recording medium.
- the read various information may be stored in, for example, a register, a memory, or the like.
- pre-format address information (LPP: Land PrePit) is recorded in each of the recording layers, and the first buffer Identification information (flag) indicating that a service area has been formed in advance is added to the preformatted address information.
- LPP Land PrePit
- a land pre-pit LPP: Land PrePit
- Presets such as frequency-modulated and phase-modulated Identification information such as a flag added to the format address information is read from the read-in area of the information recording medium.
- the read identification information may be stored in, for example, a register, a memory, or the like.
- the start address information indicating the start position of the previously formed first buffer area is added to the force recorded in the control data zone or the preformat address information, It may be configured to be! / ⁇ .
- the writing means such as the optical pickup performs the first buffer area at the time of the finalizing process based on the start address information read or stored by the information recording device described later. It is possible to quickly and reliably add buffer data to the start position of the buffer.
- start address information when the start address information is a predetermined value ("OOh"), it may be configured to indicate that the first buffer area is formed in advance. ,.
- the start address information read or stored by the information recording device described later has a predetermined value such as “OOh”, the first buffer area is formed in advance. If not, identification can be performed easily, easily and with a minimum amount of information.
- the first buffer area is formed in advance by embossed pits, and has a laminated recording film that enables additional recording. Have been.
- embossed pits are formed in a part of the recording area, and a recording film that enables additional recording is laminated in another part of the recording area.
- a so-called hybrid optical disk can be easily realized. That is, since the recording film that enables the same additional recording is laminated on the entire area of the optical disk, it is not necessary to partially remove or peel off the recording layer! It is simple.
- a first information recording device of the present invention is the first information recording medium of the present invention described above, wherein the first recording layer has a first recording capacity,
- the second recording layer records a first portion of the recording information along the first recording track path on an information recording medium configured to have a second recording capacity,
- the first portion of the recording information having the information amount equal to or less than the first recording capacity is written along the first recording track path, and the second portion having the information amount equal to or less than the second recording capacity is written.
- Calculating means for calculating a return address on the first recording track path when the first recording track pass also returns to the second recording track path when writing along the second recording track path; and (I) writing the first portion to the first recording layer along the first recording track path up to the calculated return address; and (ii) the calculated return address in the first recording layer.
- the first information recording apparatus of the present invention first, for example, a calculating means such as a drive disk or a CPU (Central Processing Unit) of a host computer, for example, performs a recording operation which is grasped before a recording operation. Based on the total amount of information, the start address information indicating the start position of the first buffering area formed in advance, and the first and second recording capacities, of the recording information, In the case where the first portion serving as the information amount is written on the first recording layer along the first recording track path, and the second portion having the information amount equal to or less than the second recording capacity is written along the second recording track path, The first recording track path force also calculates the return address on the first recording track path when returning to the second recording track node.
- a calculating means such as a drive disk or a CPU (Central Processing Unit) of a host computer, for example, performs a recording operation which is grasped before a recording operation.
- the start address information indicating the start position of the first buffering area formed in advance
- the recording information is written to the first and second recording layers.
- a writing unit such as an optical pickup writes the first part of the recording information. 1st recording layer
- write up to the calculated return address and record the second part of the record information in the second record from the corresponding address in the second recording layer corresponding to the calculated return address in the first recording layer.
- the address related to the return address and the corresponding address may be a physical sector number or a logical block address.
- a specific example of the correspondence between the folded address in the first recording layer and the corresponding address in the second recording layer is a complement relation in the physical sector number.
- the recording area is efficiently used based on the total information amount of the recording information, the start address information indicating the start position of the first buffer area formed in advance, and the first and second recording capacities.
- the first information recording apparatus of the present invention for example, in the finalizing process when the last information of the recorded information is written or written by the writing means such as the optical pickup, From the end position of the last written information, the start of the first buffer area, which is a read-out area formed in advance as a pre-recording area at one end of the second recording layer, for example, at the inner peripheral end or the like. It is only necessary to add buffer data to the position. Therefore, it is possible to omit the addition of buffer data to the entire first buffer area, which is the lead-out area, during the finalizing process, and it is possible to greatly reduce the time required for the finalizing process. Shortening of the recording operation time and comfortable use by the user can be realized.
- the control means responds to a finalizing instruction for maintaining compatibility with a read-only information recording medium, and responds to the first buffering error.
- the writing means is controlled so as to add buffer data to the rear start position.
- the last written information is written by the writing means such as the optical pickup.
- the writing means such as the optical pickup.
- the control means is configured to perform a write operation from the corresponding address in the second recording layer after writing up to the return address in the first recording layer.
- a recording or reproduction position is prevented from deviating from the first recording layer or the second recording layer, and an interlayer jump is prevented.
- the writing means is controlled so as to add the buffer data.
- the positional force for recording, reproducing or searching for the first and second recording layers is prevented from coming out of the substrate, ie, the first or second recording layer is prevented from coming off the substrate.
- At least a portion of the second buffer area which is a middle area, is used to prevent the second recording layer from being detached from the second recording layer and to perform an interlayer jump when a plurality of layers are continuously reproduced. It is formed by adding additional data.
- buffer data is added to fill the remaining part of the second buffer area, which is the middle area of the first and second recording layers.
- the second buffer area is formed in which the thickness is about 0.5 mm or more.
- An optical disc such as a double-layer DVD—R or RZW that has been finalized as described above is In addition, normal control of the tracking servo by the optical pickup of the general DVD-ROM reproduction-dedicated drive can be performed, thereby maintaining compatibility with general DVD-ROM.
- the control means includes: a total information amount of the recording information; and a start address indicating a start position of the first buffer area formed in advance.
- the buffer data is written based on the information and the first recording capacity and the second recording capacity to form a third buffer area located on the inner peripheral side of the second buffer area.
- the writing means is controlled.
- the outer peripheral side of the third buffer area is in an unrecorded state.
- the time required for the finalizing process can be greatly reduced, and the recording operation time can be shortened and the user can use comfortably.
- a second information recording device of the present invention is the above-described second information recording medium of the present invention, wherein the first recording layer has a first recording capacity, The second recording layer records a first portion of the recording information along the first recording track path on an information recording medium configured to have a second recording capacity, An information recording apparatus for recording a second portion of the recording information along the second recording track path having the same recording direction as the first recording track path, wherein the recording information is recorded in the second recording track path.
- Writing means capable of writing to the first recording layer and the second recording layer as one part and the second part, the total information amount of the recording information, and the first buffer area formed in advance Start address information indicating the start position of the first recording capacity and the first 2 Based on the recording capacity, the first part of the recording information having an information amount equal to or less than the first recording capacity is written along the first recording track path, and the information equal to or less than the second recording capacity is written.
- Calculating means for calculating an address (i) writing the first portion to the first recording layer along the first recording track path up to the calculated first recording end address; The second part is transferred to the second recording layer by the second recording track path.
- the second information recording apparatus of the present invention first, for example, a calculating means such as a drive disk or a CPU of a host computer, for example, outputs all information of the recording information grasped before the recording operation. Based on the amount, the start address information indicating the start position of the first buffering area formed in advance, and the first and second recording capacities, the first recording capacity is equal to or less than the first recording capacity.
- the first recording capacity is equal to or less than the first recording capacity.
- the recording information is written to the first and second recording layers.
- a writing unit such as an optical pickup writes the first part of the recording information.
- the first recording layer is written along the first recording track path to the calculated first recording end address, and the second part of the recording information is calculated on the second recording layer along the second recording track path.
- the address related to the first and second recording end addresses and the corresponding address may be a physical sector number or a logical block address.
- the recording area is efficiently used based on the total information amount of the recording information, the start address information indicating the start position of the first buffer area formed in advance, and the first and second recording capacities.
- the second information recording apparatus of the present invention for example, in the finalizing process when the last information of the recorded information is written or written by the writing means such as the optical pickup, From the end position of the last written information, the first buffer area, which is a read-out area formed in advance as a pre-recording area at the other end such as the outer peripheral end of the first and second recording layers, is provided. It is only necessary to add buffer data to the start position. Therefore, similarly to the first information recording apparatus, it is not necessary to add buffer data to the entire first buffer area, which is a lead-out area, during the finalizing process. As a result, the time required for the finalizing process can be significantly reduced, and the recording operation time can be reduced and the user can use the device more comfortably.
- the second information recording apparatus of the present invention can appropriately adopt the same aspects as the above-described various aspects of the second information recording medium of the present invention.
- control means responds to a finalization instruction for maintaining compatibility with a read-only information recording medium, and the first recording end address. And from the larger address value of the second recording end address to the minimum necessary address value for forming the fourth buffer area located on one side of the first buffer area.
- the writing means is controlled so that buffer data is written.
- Buffer data may be written up to an address value which is the minimum required to form the fourth buffer area, which is another lead-out area located.
- an unrecorded area that is, an area in a mirror state occurs between the fourth buffer area and the first buffer area, but anything may be recorded on the outer peripheral side of the fourth buffer area. No problem.
- this recording method is applied to the information recording medium, the recording time can be further reduced.
- a first information recording method of the present invention is the first information recording medium of the present invention described above, wherein the first recording layer has a first recording capacity, The second recording layer records a first portion of the recording information along the first recording track path on an information recording medium configured to have a second recording capacity,
- An information recording method in an information recording apparatus comprising: a recording unit for recording a second portion of the recording information along the second recording track path by turning a recording direction back.
- the total amount of information to be recorded and the For example, based on the start address information indicating the start position of the first buffering area and the first and second recording capacities, while efficiently using the recording area, for example, a double-layer DVD-R or RZW It is possible to perform a recording operation of an optical disk such as
- the writing means such as an optical pickup starts writing the last information written from the end position of the second recording layer
- buffer data up to the start position of the first buffer area, which is a lead-out area formed in advance as a pre-recording area at one end such as the peripheral end.
- This makes it possible to omit the addition of buffering data to the entire first buffering area, which is the lead-out area, during the finalizing process, thereby greatly shortening the time required for the finalizing process.
- the recording operation time can be shortened and comfortable use by the user can be realized.
- the second information recording method of the present invention is the above-mentioned second information recording medium of the present invention, wherein the first recording layer has a first recording capacity, The second recording layer records a first portion of the recording information along the first recording track path on an information recording medium configured to have a second recording capacity,
- the above An information recording method in an information recording apparatus comprising: writing means for recording a second part of recording information along the second recording track path in the same recording direction as the first recording track path.
- the recording capacity based on the total information amount of the recording information, start address information indicating a start position of the previously formed first buffer area, and the first recording capacity and the second recording capacity.
- the first portion of the information having the information amount equal to or less than the first recording capacity is written along the first recording track path
- the second portion having the information amount equal to or less than the second recording capacity is written in the second portion.
- the total amount of information to be recorded and the For example, based on the start address information indicating the start position of the first buffering area and the first and second recording capacities, while efficiently using the recording area, for example, a double-layer DVD-R or RZW It is possible to perform a recording operation of an optical disk such as
- the writing unit such as an optical pickup starts writing the last information from the end position of the last information written in the first and second recording layers.
- the writing unit such as an optical pickup starts writing the last information from the end position of the last information written in the first and second recording layers.
- buffering data up to the start position of the first buffering area, which is a readout area formed in advance as a pre-recording area at the other end such as the outer peripheral end. Therefore, similarly to the first information recording method, it is possible to omit the addition of buffer data to the entire first buffer area, which is a read-out area, in the finalizing process, and the time required for the finalizing process is greatly reduced. This makes it possible to shorten the recording operation time and achieve comfortable use by the user.
- a first computer program of the present invention provides a recording control for controlling a computer provided in the first information recording device of the present invention (including its various aspects).
- Computer program for causing the computer to function as at least a part of the control means, the calculating means, and the writing means.
- the computer program of the present invention if the computer program is read from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk for storing the computer program and executed, Alternatively, if the computer program is executed after being downloaded to a computer via communication means or the like, the above-described first information recording apparatus of the present invention can be realized relatively easily.
- first computer program of the present invention can also adopt various aspects in correspondence with the various aspects of the first information recording device of the present invention described above.
- a second computer program of the present invention is a recording control computer program for controlling a computer provided in the above-described second information recording apparatus of the present invention. Function as at least a part of the control unit, the calculation unit, and the writing unit.
- the computer program can be 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 executed.
- a recording medium such as a ROM, a CD-ROM, a DVD-ROM, or a hard disk that stores the computer program and executed.
- the computer program is executed after being downloaded to a computer via communication means, for example, the above-described second information recording apparatus of the present invention can be realized relatively easily.
- the second computer program of the present invention can also adopt various aspects in correspondence with the various aspects of the above-described second information recording device of the present invention.
- the first computer program product in the computer-readable medium is provided in the above-described first information recording device of the present invention (including its various aspects).
- the program instructions that can be executed by the provided computer are clearly embodied, and the computer functions as at least a part of the control unit, the calculation unit, and the writing unit.
- the computer program product of the present invention if the computer program product is 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 If the computer program product, which is, for example, a transmission wave, is downloaded to a computer via a communication unit, at least a part of the control unit, the calculation unit, and the writing unit of the present invention described above is relatively easy.
- the computer program product includes a computer-readable code (or a computer-readable instruction) that functions as at least a part of the control unit, the calculation unit, and the writing unit. It is composed of ⁇ .
- the second computer program product in the computer-readable medium is executed by a computer provided in the above-described second information recording apparatus of the present invention (including its various aspects) in order to solve the above problem.
- the possible program instructions are clearly embodied, and the computer functions as at least a part of the control unit, the calculation unit, and the writing 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 If the computer program product, which is, for example, a transmission wave, is downloaded to a computer via a communication unit, at least a part of the control unit, the calculation unit, and the writing unit of the present invention described above is relatively easy. Can be implemented. More specifically, the computer program product includes a computer-readable code (or a computer-readable instruction) that functions as at least a part of the control unit, the calculation unit, and the writing unit. It is composed of ⁇ .
- the first recording The layer, the second recording layer, and the pre-recorded first buffer area are provided, so that the time required for finalization processing can be significantly reduced, and the recording operation time can be shortened. And comfortable use by the user.
- the apparatus since the apparatus includes the writing unit, the calculating unit and the step, and the control unit and the step, the time required for the finalizing process is reduced. Can be greatly reduced, and the recording operation time can be shortened and comfortable use by the user can be realized.
- the computer is made to function as the above-described information recording apparatus of the present invention, so that the time required for finalization processing can be greatly reduced, and the recording operation can be performed. Shortening of time and comfortable use by the user can be realized.
- FIG. 1 A schematic plan view (FIG. 1 (a)) showing a basic structure of an optical disc having a plurality of recording areas according to a first embodiment of the information recording medium of the present invention
- FIG. 1 is a schematic cross-sectional view and a schematic conceptual diagram of a recording area structure in a radial direction corresponding to the schematic cross-sectional view (FIG. 1 (b)).
- FIG. 2 A data structure of a two-layer optical disc according to a first embodiment of the information recording medium of the present invention, physical sector numbers constituting ECC blocks in a recording area of the optical disc, and recording of the optical disc by an offset method. Or a conceptual graph showing a reproduction method.
- FIG. 3 is a table diagram showing classification of land pre-pit data recorded in a lead-in area of an LO layer of an optical disc according to a first embodiment of the information recording medium of the present invention.
- FIG. 4 is a table diagram showing an arrangement of land prepits in a lead-in area and an ECC block address in an LO layer of an optical disk adopting the opposite method according to a first embodiment of the information recording medium of the present invention.
- FIG. 5 Details of data of a land prefix with ID # 1 recorded in a read-in area of an LO layer and an L1 layer of an optical disc according to a first embodiment of the information recording medium of the present invention. It is a table diagram etc. which showed the structure.
- FIG. 6 is a block diagram of an information recording / reproducing device according to an embodiment of the information recording device of the present invention.
- FIG. 7 is a flowchart showing a flow of a recording operation of the optical disc when a middle area is recorded in the information recording / reproducing apparatus according to the embodiment of the information recording apparatus of the present invention.
- FIG. 8 A schematic diagram showing the recording area of the LO layer and the L1 layer when the readout area according to the first embodiment of the information recording medium of the present invention is formed by embossing or the like, corresponding to each step of FIG.
- FIG. 9 ( a) Schematic structure diagram showing a specific example of a link along a recording track path at a linking position in a sector by an information recording / reproducing apparatus according to an embodiment of the information recording apparatus of the present invention
- FIG. 9 (b) a schematic conceptual diagram showing a position where this link is performed.
- FIG. 10 is a schematic structural diagram showing a specific example of a link in a direction opposite to a recording track path at a linking position in a sector by an information recording / reproducing apparatus according to an embodiment of the information recording apparatus of the present invention (FIG. 10 (a)) and a schematic conceptual diagram (FIG. 10 (b)) showing a position where this link is performed.
- FIG. 11 is a conceptual diagram showing a data structure of a two-layer optical disc and a recording or reproducing method of the optical disc by an opposite method according to a second embodiment of the information recording medium of the present invention.
- FIG. 12 is a conceptual diagram showing a data structure of a two-layer optical disc and a method of recording or reproducing the optical disc by an opposite method according to a third embodiment of the information recording medium of the present invention.
- FIG. 4 is a conceptual graph showing a reproduction method.
- FIG. 14 is a conceptual diagram showing a data structure of a two-layer optical disc and a recording / reproducing method of the optical disc in a parallel system according to a fifth embodiment of the information recording medium of the present invention.
- a data structure when a single read-out area is formed on a single-layer optical disc according to a sixth embodiment of the information recording medium of the present invention, and a method of recording or reproducing using the optical disc FIG. 15 (a) showing the concept of the method, and the data structure and the data structure when two read-out areas are formed on the single-layer optical disc according to the seventh embodiment of the information recording medium of the present invention.
- FIG. 15 (b) is a conceptual diagram showing a recording or reproducing method using an optical disk.
- FIG. 16 is a schematic external perspective view showing a data structure of a two-layer type card-shaped recording medium according to an eighth embodiment of the information recording medium of the present invention and a recording or reproducing method which is an example of the opposite method. It is.
- FIG. 17 is a schematic external perspective view showing a data structure of a two-layer type card-shaped recording medium and a parallel recording / reproducing method according to a ninth embodiment of the information recording medium of the present invention. .
- FIG. 18 is a schematic external view showing a data structure of a two-layer type card-shaped recording medium and a recording or reproducing method which is another example of the opposite method according to a tenth embodiment of the information recording medium of the present invention. It is a perspective view.
- Optical disk 101-0 (101-1) ⁇ Lead-in area, 102-0 (102-1)... Data area, 103-0 (103-1, 103-Oa and 103-la) ... area outside read door, 104-0 (104-1, 104-Oa and 104-la) ... middle area, 106 ... transparent substrate, 300 ... information recording and reproducing device, 306 ...
- Operation control means 310 ⁇ Operation buttons, 311 ⁇ Display nonel, 351 ⁇ Spindle motor, 352 ⁇ Optical pickup, 353 ⁇ Signal recording / reproducing means, 354 ⁇ CPU (drive control means ), 355 ⁇ Memory, LB: laser beam, FSA: file system area, SY0 (SY5) "-sync signal, 1 ⁇ 1 (1 ⁇ 2 and 3)"-link part
- FIG. 1A is a schematic plan view showing a basic structure of an optical disc having a plurality of recording areas according to a first embodiment of the information recording medium of the present invention
- FIG. 1 is a schematic cross-sectional view of an optical disc and a schematic conceptual view of a recording area structure in a radial direction associated with the optical disc.
- an optical disc 100 is formed on a recording surface of a disc body having a diameter of about 12 cm like a DVD, with the center hole 1 as the center.
- a lead-in area 101, a data area 102, and a lead-out area 103 or a middle area 104 according to the example are provided.
- a recording layer or the like is laminated on the transparent substrate 106 of the optical disc 100, for example.
- tracks 10 such as a groove track and a land track are alternately provided in a spiral or concentric manner around the center hole 1.
- ECC block 11 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 101, the lead-out area 103, or the middle area 104 may have a further subdivided configuration.
- the optical disc 100 has, for example, a transparent substrate 106 on which an example of first and second recording layers according to the present invention described later is formed. It has a structure in which the L0 layer and the L1 layer are stacked.
- FIG. 1 (b) it is determined whether the focusing position of the laser beam LB irradiated with the downward force and the upward force is adjusted to the recording layer of V and deviation. Accordingly, recording / reproduction in the L0 layer is performed or recording / reproduction in the L1 layer is performed.
- the optical disc 100 may be a single-sided dual-layer, that is, a dual-layer double-sided, which is not limited to the dual-layer, that is, a dual-layer double-sided.
- the present invention is not limited to an optical disk having two recording layers as described above, but may be a multilayer optical disk having three or more layers.
- FIG. 2 shows the data structure of a two-layer optical disc according to the first embodiment of the information recording medium of the present invention, the physical sector numbers constituting the ECC blocks in the recording area of the optical disc, and the positive format of the optical disc.
- FIG. 5 is a conceptual graph showing a recording or reproducing method according to the present invention. The vertical axis indicates the sector number expressed in hexadecimal, and the horizontal axis indicates the relative position of the optical disk in the radial direction.
- the two-layer type optical disc 100 As shown in FIG. 2, the two-layer type optical disc 100 according to the first embodiment of the information recording medium of the present invention has the above-described transparent substrate and two recording layers laminated on the transparent substrate, that is, It is configured with an LO layer and an L1 layer.
- the LO layer is provided with a lead-in area 101-0, a data area 102-0, and a middle area 104-0 by applying an inner circumferential force to the outer circumferential side.
- This lead-in area 01-01-0 contains a PC (Power Supply) for OPC (Optimum Power Calibration) processing.
- RM Recording Management area
- RMA Recording Management area
- RMA Recording Management area
- the middle area 104-0 has a basic function of preventing the recording or reproduction position for the L0 layer and the L1 layer from being out of the substrate, but the recording or reproduction position is out of the substrate in the event of an interlayer jump. It also has a function as a so-called "jump buffer area”.
- 103 —1 is provided.
- This lead-out area 103-1 also has an OPC area (not shown) May be provided.
- the lead-out area 103-1 is preliminarily formed as a pre-recording area by embossed pits in the case of DVD-RW or by pits irradiated by a recording laser in the case of DVD-R. Have been.
- the lead-out area 103-1 may have a radial force O.5mm or more.
- the “identification information” according to the present invention indicating that the lead-out area 103-1 is formed in advance, and the present invention indicating the start position of the lead-out area 103-1 formed in advance. “Start address information” is recorded.
- the two-layer type optical disc 100 is configured as described above, when recording or reproducing the optical disc 100, an optical disc (not shown) of an information recording / reproducing apparatus according to the information recording apparatus of the present invention described later is used.
- the pickup irradiates the laser beam LB from the side of the substrate (not shown), that is, toward the upper side of the lower force in FIG. 2, to control the focal length and the like, and to move the optical disk 100 in the radial direction. And the direction is controlled. Thereby, data is recorded on each recording layer, or the recorded data is reproduced. More specifically, in the L0 layer, recording information such as content is recorded, and subsequently, a predetermined amount of buffer data is written as a part of the middle area 104-0 of the L0 layer.
- the opposite method is adopted as a recording or reproducing procedure of the two-layer type optical disc according to the first embodiment of the information recording medium of the present invention.
- the opposite method is a recording or reproducing procedure of a two-layer type optical disc, in which the optical pickup power L0 layer of the information recording / reproducing apparatus described later moves from the inner circumference side to the outer circumference side, that is, On the other hand, in the L1 layer, the optical pickup moves from the outer peripheral side toward the inner peripheral side, that is, moves leftward as indicated by the arrow in FIG.
- This is a method in which recording or reproduction is performed on a two-layer optical disc.
- the optical pickup power is the end position of the lead-in area 101-0 where the sector number is "02FFFFh” (see point A in Fig. 2), and the start of the data area 102-0 where the sector number is "030000h” Position (see point B in Fig. 2), end position of data area 102-0 with sector number "lAFFFFh” (hereinafter referred to as "turning point" of L0 layer as appropriate: point C in Fig.
- the data is moved to the middle area 104-0 which plays the role of buffer, so that recording or reproduction in the L0 layer is performed.
- the "h" at the end of "30000h” or the like indicates that it is expressed in hexadecimal.
- the optical pickup moves the middle area 104-1, the data area 102-1 and the lead-out area 103-1 from the outer side to the inner side, the recording area of the optical disc 100 is changed. Sector numbers increase.
- the start position of the data area 102-1 of the middle area 104-1 which serves as a buffer for the optical pickup power, and the sector number power of "E50000h” (hereinafter referred to as the "return point" of the L1 layer as appropriate: Access the end position of the data area 102-1 with the sector number of "FCFFEFh” (see the point E in Fig. 2) in order, and go to the lead-out area 103-1. Then, recording or reproduction in the L1 layer is performed.
- All the sector numbers in the L0 layer and the L1 layer described above have a relationship of 15's complement in hexadecimal. More specifically, for example, the turning point (sector number “1 AFFFFh”) in the L0 layer and the turning point (sector number “E50000h”) in the L1 layer are in a relationship of 15's complement.
- the complement of “lAFFFFh” is obtained by converting the hexadecimal sector number “lAFFFFh” into a binary number, 000110101111111111111111 ”, and inverting it. To be converted back to base number, E50000h ,.
- the content information includes, for example, the sector numbers "03 OOOOh” to "lAFFFFh” of the data area 102-0 of the LO layer and the sector numbers "E50000h” to "FCFFEFh” of the data area 102-1 of the L1 layer. In, recording or reproduction is performed at the same time as the optical pickup is continuously moved.
- Block Address is assigned one-to-one. More specifically, for example, the sector number, 030000h,, corresponds to the 000000, LBA force, and the sector number, FCFFEFh “corresponds to the" 30FF EF "LBA.
- the computer can perform recording and reproducing operations according to, for example, logical block addresses managed by the file system without being aware of the physical sector number.
- the length in the radial direction is, for example, 0.5 mm or more formed in advance as a pre-recording area at the inner peripheral end of the L1 layer. It is only necessary to add buffer data to the start position of the lead-out area 103-1 of the buffer. Therefore, it is possible to omit the addition of buffering data to the entire lead-out area 103-1 during the finalizing process, and it is possible to greatly reduce the time required for the finalizing process, and to reduce the recording operation time. Therefore, it is possible to shorten the time and to use the user comfortably.
- the radial length of the lead-out area 103-1 is equal to the radial length of the lead-in area 101-0. Greater than length. Therefore, at the time of the finalizing process, for example, the recording end position force of the actual data in the L1 layer can be reduced to the lead-out area 103-1, and the time for recording the buffering data can be shortened compared to the second embodiment described later. .
- land pre-pits recorded in the lead-in area of the L0 layer of the optical disc according to the first embodiment of the information recording medium employing the opposite method will be described.
- the type of data, the location of the land pre-pits in the lead-in area, the force / force when the lead-out area is formed as a pre-recording area, and the opening of the lead-out area The principle that the start address is identified by the land pre-pit will be described.
- FIG. 3 is a table showing the classification of land pre-pit data recorded in the read-in area of the LO layer of the optical disc according to the first embodiment of the information recording medium of the present invention.
- This table diagram shows the field identification number (Field ID), information to be recorded (Content), and recording location (Location) from the left column.
- land pre-pit data recorded in the lead-in area of the L0 layer is classified into ID # 0 to ID # 18 by a field identification number (eld ID).
- the land prepit identified by ID # 0 information of an ECC (Error Correcting Code) block address is recorded.
- the land pre-pits are arranged in the entire recording area of the optical disc.
- the ECC block address is a recording unit in which error correction is possible, that is, position information based on the ECC block.
- the land prepit identified by ID # 1 information such as a start address of a lead-out area or extended information, which constitutes an example of "start address information" according to the present invention described later, is recorded. Is done.
- the land pre-pits are arranged in the lead-in area of the optical disc.
- the land pre-pits of ID # 1 to ID # 18 are arranged in the lead-in area of the optical disc.
- the land prepits identified by ID # 7 and ID # 10 are recorded in the lead-in area of the L0 layer of the 1x-speed strategy information optical disk for the L0 layer.
- the land prepits identified by ID # 8 and ID # 9 have information on the manufacturing identification number. Is recorded in the lead-in area of the LO layer of the optical disc.
- the land prepits identified by ID # 11 and ID # 12 are recorded in the lead-in area of the LO layer of the double-speed storage information optical disc for the LO layer.
- the land prepits identified by ID # 13 to ID # 18 are recorded in the lead-in area of the LO layer of the 4x speed optical disc for the LO layer.
- FIG. 4 is a table showing the arrangement of land pre-pits in the lead-in area and the ECC block address in the LO layer of the optical disc adopting the object method according to the first embodiment of the information recording medium of the present invention. It is.
- This table shows the field identification numbers, recording locations, and ECC block addresses from the left column.
- land prepits identified by the field identification numbers of ID # 1 to ID # 18 or ID # 0 are recorded periodically in the lead-in area of the LO layer. ing. These land pre-pits are located at ECC block addresses from “FFDD05h” to “FFCFFFh”, for example.
- FIG. 5 shows a land having a field identification number (Field ID) force D # 1 recorded in the lead-in area of the L0 layer and the L1 layer of the optical disc according to the first embodiment of the information recording medium of the present invention.
- FIG. 4 is a table diagram or the like showing a detailed structure of pre-pit data.
- ID # 1 data represented by a binary bit string of a matrix of 16 rows ⁇ 13 columns is recorded.
- the bit in the "1" column is a SYNC bit, that is, a bit for establishing synchronization.
- the bits in the “2” to “5” columns are bit strings recording data types. Actual data is recorded in the bits in the “6” to “13” columns.
- data of data types "0000” to “0010” is a relative block.
- the data whose data type is from “0011” to “0101” means the intelligence, and the latter part of the data whose data type is “1100”, that is, “13” from the “10” column
- the data in the column means extended information.
- data whose data type is "1001" to "1011” means the start address of the lead-out area.
- the start address of the lead-out area is “OOh”, it may be indicated that the lead-out area is formed in advance as a pre-recording area.
- the start address of the read-out area recorded in the land pre-pit having the field identification number of ID # 1 is read by an information recording / reproducing apparatus described later, so that the lead-out area becomes a pre-recording area. It is possible to identify the force formed in advance and the start address of the lead-out area if formed in advance.
- the extended information recorded in the land pre-pit having the field identification number of ID # 1 shown in Fig. 5 is read by the information recording / reproducing apparatus described later, and the L0 layer and the L1 layer are read.
- the maximum recordable speed and the optimal recording condition can be selected. Specifically, as shown in the lower part of FIG. 5, when the extension information recorded in the land pre-pit having the field identification number of the L0 layer of ID # 1 is set to “0011”, this extension is performed. When the information is read by the information recording / reproducing device, the maximum field identification number becomes “ID # 18”. As described in FIGS. 3 and 4, for the L1 layer, the 1 ⁇ speed strategy information is used. At the same time, the 1x, 2x, or 4x speed strategy information can be selected for the L0 layer.
- FIG. 6 is a block diagram of an information recording / reproducing apparatus according to an embodiment of the information recording apparatus of the present invention.
- the information recording / reproducing device 300 has a function of recording the recording data on the optical disk 100 and a function of reproducing the recording data recorded on the optical disk 100.
- the information recording / reproducing device 300 records information on the optical disc 100 under the control of a CPU (Central Processing Unit). In addition, the device reads information recorded on the optical disc 100.
- a CPU Central Processing Unit
- the information recording / reproducing apparatus 300 includes an optical disk 100, a spindle 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 an operation control means 307. , An operation button 310, a display panel 311, and a bus 357.
- the spindle motor 351, optical pickup 352, signal recording / reproducing means 353, CPU (drive control means) 354, and memory 355 described in the first half constitute a disk drive (hereinafter, appropriately referred to as a drive). May be.
- the data input / output control unit 306, operation control unit 307, operation button 310, and display panel 311 described in the latter half may constitute a host computer (hereinafter, appropriately referred to as a host).
- the communication means may be constituted by the CPU (drive control means) 354 and the 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 performs recording and reproduction on the optical disc 100, and includes a semiconductor 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 read light at the time of reproduction, and modulates it at a second power as write light at the time of recording. And irradiate.
- a light beam such as a laser beam at a first power as read light at the time of reproduction
- 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. More specifically, the signal recording / reproducing means 353 includes, for example, a laser diode (LD) driver, a head amplifier, and the like.
- the laser diode driver (LD driver) drives a semiconductor laser (not shown) 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. More specifically, during the OPC (Optimum Power Calibration) processing, the signal recording / reproducing means 353 records and reproduces the OPC pattern together with a timing generator (not shown) under the control of the CPU 354.
- OPC Optimum Power Calibration
- a semiconductor laser (not shown) provided in the optical pickup 352 is driven so that an optimum laser power can be determined by raw processing.
- the signal recording / reproducing means 353, together with the optical pickup 352, constitutes an example of the “writing means” according to the present invention.
- the memory 355 is provided with a general data processing and OPC in the information recording / reproducing apparatus 300 such as a buffer area for recording / reproducing data and an area used as an intermediate buffer when converting into data used by the signal recording / reproducing means 353. Used in processing.
- the memory 355 is a ROM area for storing programs for operating these recorder devices, that is, firmware, and a RAM area for storing buffers used for compression / expansion of video data and variables necessary for program operations. And so on.
- 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 or firmware for operating the CPU 354 is included in the memory 355.
- the CPU 354, together with the memory 355, constitutes an example of the “control means” according to the present invention.
- the data input / output control unit 306 controls data input / output from / to the information recording / reproducing apparatus 300 from the outside, and stores and retrieves data into / from the data buffer on the memory 355.
- data input / output is a video signal
- externally received data is compressed (encoded) into an MPEG format at the time of data input and output to the memory 355, and at the time of data output, the MPEG format received from the memory 355 is output. Expands (decodes) the data from and outputs it to the outside.
- the operation control means 307 receives and displays an operation instruction to the information recording / reproducing device 300, and transmits an instruction by an operation button 310 such as recording or reproduction to the CPU 354, and controls 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.
- the operation control means 307 may be constituted by a CPU, a memory, and the like (not shown) as the host computer according to the present invention.
- One specific example of the information recording / reproducing device 300 described above is a household device such as a recorder device for recording and reproducing a video.
- This recorder device records the video signal from a broadcast receiving tuner or an external connection terminal onto a disc and reproduces it on an external display device such as a TV.
- the operation as a recorder device is performed by causing the CPU 354 to execute the program stored in the memory 355.
- the information recording / reproducing apparatus performs the additional recording operation on the LO layer and the L1 layer, the recording of the middle area, and the finalizing process.
- the flow of the recording operation in the case of the above and the transition of the recording area of the LO layer and the L1 layer will be described.
- FIG. 7 is a flowchart showing the flow of the recording operation of the optical disc when the middle area is recorded in the information recording / reproducing apparatus according to the embodiment of the information recording apparatus of the present invention.
- FIG. 8 shows the recording areas of the LO layer and the L1 layer when the lead-out area according to the first embodiment of the information recording medium of the present invention is formed by embossing or the like, corresponding to each step of FIG.
- the schematic conceptual diagram showing the recording area of the LO layer and the L1 layer when the lead-out area according to the comparative example is formed of an enboss, etc.
- Fig. 8 (b) In FIG. 8, the right side indicates the outer peripheral side, and the left side indicates the inner peripheral side.
- the optical disc 100 is loaded (Step S101).
- a seek operation is performed by the optical pickup 352 under the control of the CPU 354, and the type of the optical disk such as a DVD-R or RW is determined (step S102). More specifically, it is determined by the value of “Book Type” in the management information physically recorded in the control data zone, for example.
- various management information necessary for the recording process on the optical disc 100 is obtained (step S103). More specifically, the various management information identifies the address information of the recorded area, the number of recording layers, and whether the recording layer is an opposite track path, a normal track path, or a single layer. .
- the force / force when the lead-out area is formed in advance as the "pre-recording area" according to the present invention, and the "pre-recording area” is the embossed pit or the The force, which is the pit from the irradiation, as well as the start address of the lead-out area are identified.
- Step S104 it is determined whether or not the optical disc is ejected.
- step S104 if not ejected (step S104: No), the drive further starts, for example, additional recording. It is determined whether or not the power is instructed to be performed (step S105).
- step S105 when an instruction to start additional recording is given (step S105: Yes), an OPC (Optimum Power Control) process for detecting an optimum recording laser power is performed (step S106). Subsequently, it is determined whether the optimum recording laser power by the OPC process can be detected (step S107).
- OPC Optimum Power Control
- step S107 if the optimum recording laser power can be detected (step S107: Yes), the amount of information to be recorded in the L0 layer and the L1 layer is calculated under the control of the CPU 354, and the turning point in the L0 layer and the L1 layer are calculated. Is calculated (step S108).
- step S109 it is determined whether or not there is recording information in the L0 layer.
- step S109 when there is recording information in the L0 layer (step S109: Yes), additional recording is performed in the L0 layer by, for example, a sector unit or an ECC block unit (step S110).
- step S110 additional recording is performed in the L0 layer by, for example, a sector unit or an ECC block unit (step S110).
- step S110 refer to the circled number “1” in FIGS. 8 (a) and (b).
- step S111 details of the structure of the link along the recording track path in the linking position will be described later with reference to FIG.
- buffer data is added as a part of the middle area of the L0 layer (step S112).
- buffer data is added as a part of the middle area of the L1 layer (step S113). See the circled numbers "3" in Figs. 8 (a) and (b). Then, for example, dummy data is recorded in the ECC block including the linking position at the boundary between the middle area and the data area in the L1 layer (step S114).
- step S115 it is determined whether or not there is recording information in the L1 layer.
- step S115 when there is recorded information on the L1 layer (step S115: Yes), the information recording and reproducing apparatus, in the L1 layer, for example, additional recording in sector units or ECC block unit is performed (step S116) 0
- FIG. 8 See circled numbers "4" in (a) and (b).
- the file system in the data area is It is determined whether the force to be updated is present (step SI17).
- the file system should be updated step S117: Yes
- the file system is updated by the information recording / reproducing device (step S118).
- Step S119 it is determined whether or not the optical disc is ejected.
- the finalizing process is started, and first, management information and the like are recorded in the lead-in area 101-0 (Step S120). More specifically, in the read-in area 101-0, for example, the position information of the recorded area, for example, the position information at which the border art starts, or the position to be recorded next, for example, the position at which the border-in starts Information and the like are recorded.
- step S121 it is determined whether or not the lead-out area has been formed in advance as a pre-recording area by emboss pits or pits irradiated by a recording laser.
- step S121: Yes when the lead-out area is formed in advance as a pre-recording area by emboss pits or pits irradiated by a recording laser (step S121: Yes), furthermore, a DC level lower than the reproduction laser power is used. It is determined whether or not the irradiation by the laser power of the so-called DC write is necessary power to the lead-out area formed in advance as the pre-recording area by the emboss pit (step S122).
- Step S122 when the DC write force is necessary for the lead-out area previously formed as the pre-recording area by the emboss pit (Step S122: Yes), the lead-out area previously formed as the pre-recording area by the emboss pit Is subjected to a DC write (step S123).
- the lead-out area previously formed as the pre-recording area and the recording area of the L1 layer are automatically linked by the emboss pit (step S124).
- step S125 dummy data is recorded in the ECC block including the linking position at the boundary between a part of the middle area and the remaining part of the middle area in the LO layer.
- dummy data is recorded in the ECC block including the linking position at the boundary between a part of the middle area and the remaining part of the middle area in the LO layer.
- FIG. 9 details of such a link structure along the recording track path at the linking position will be described later with reference to FIG. 9 as in step S111.
- buffer data is added to the remaining part of the middle area of the LO layer (step S126).
- step S126 refer to the circled number “7” in FIGS. 8 (a) and (b).
- buffer data is added to the remaining part of the middle area of the L1 layer (step S127).
- step S127 refer to the encircled numeral “8” in FIGS. 8 (a) and (b).
- dummy data is recorded in the ECC block including the linking position at the boundary between the remaining part of the middle area and the part of the middle area in the L1 layer (step S128).
- step S121 when the lead-out area is not formed in advance as a pre-recording area by emboss pits or pits irradiated by the recording laser (step S121: No), the data in the L1 layer At the boundary between the area and the lead-out area, for example, dummy data is recorded in the ECC block including the linking position (step S129).
- step S129 details of such a link structure along the recording track path at the linking position will be described later with reference to FIG. 9 as in step S111.
- step S130 refer to the boundary between the circled number “4” and the circled number “6” in FIG. 8B.
- buffer data is added to the lead-out area of the L1 layer (step S130). See the circled number "6" in Fig. 8 (b).
- step S 119 determines whether or not an instruction to perform re-recording has been given in the information recording / reproducing apparatus.
- step S131 when an instruction to perform re-recording is given (step S131: Yes), the process returns to step S108.
- step S131: No if V is not instructed to perform re-recording (step S131: No), the process returns to step S119.
- FIG. 9 is a schematic structural diagram showing one specific example of a link along a recording track path at a linking position in a sector by the information recording / reproducing apparatus according to the embodiment of the information recording apparatus of the present invention (FIG. 9 (a)) and this link
- FIG. 9 (b) is a schematic conceptual diagram showing positions where the operations are performed.
- a force indicating a link at the position of the middle area 104 is applied to all recording areas such as a lead-in area and a data area.
- step S11 when additional recording (see step S11) is performed behind the recorded area (see step S10), the link (link) at the linking position in the sector is used. Overwrite) is performed. More specifically, for example, the first sync of the 26 sync frames in the linking sector, which is located at the beginning of one ECC block (16 sectors) where most of the unrecorded area is newly added, for example, The data has been recorded up to the "16" bytes of the frame.
- the additional recording is started from, for example, the "16" th byte or later between "15" and "17” bytes of the first sync frame of this linking sector.
- the 16th byte of the first sync frame of the linking sector located at the head of one ECC block is an area overwritten by new appending, and is called a linking position.
- a linking sector having an information amount of 2 KB is configured to include 26 sync frames, and each sync frame includes a sync signal portion of "32" channel bits and a sync signal portion of "1488" channel bits. It has a data section.
- there are eight types of synchronization signals such as “SYO” and “SY5” in FIG. 9A, and a unique pair of sync frames can be specified by combining two of these synchronization signals. Therefore, the information recording / reproducing apparatus can control which position in one sector is recorded.
- Such a link along the recording track path is performed when the LO layer force is additionally recorded at the time of the interlayer jump to the L1 layer, as shown in FIG. reference). It is also performed when buffering data is added along the recording track path following a part 104a-0 of the middle area in the LO layer (see link section R2).
- additional recording in units of mark pits is feasible, but is preferably not performed. This is because it is better to consider the uncertainty of the mark pit shape due to the heat conduction at the beginning and end of recording and a certain margin for the information recording device.
- the error of the overwriting area or the writing error due to the shift of the recording clock unit is corrected by the ECC (Error Correcting Code).
- ECC Error Correcting Code
- additional writing is not performed in a channel bit portion of the synchronization signal or a data portion located immediately before the synchronization signal portion. Considering the various margins described above, write errors may occur, and in such cases, errors are similarly corrected by the ECC.
- the synchronization signal portion is closely related to the control operation, the DVD is standardly linked with the synchronization signal portion according to the DVD standard.
- FIG. 10 is a schematic diagram showing a specific example of a link in a direction opposite to a recording track path at a linking position in a sector by an information recording / reproducing apparatus according to an embodiment of the information recording apparatus of the present invention. It is a structural diagram (FIG. 10 (a)) and a schematic conceptual diagram (FIG. 10 (b)) showing a position where this link is performed. Note that, in FIG. 10B, the force indicating the link at the position of the middle area 104 is similar to the description in FIG. 9B described above, and this link is used for all recording areas such as the lead-in area and the data area. Applied to
- Fig. 10 (a) when a new write operation (see step S21) is performed at the beginning of the recorded area (see step S20), the linking position in the sector is set. Link (overwrite) is performed. More specifically, for example, most of the recorded areas are located at the beginning of one ECC block (16 sectors) to be newly added. For example, the first sync of 26 sync frames in the linking sector For example, the force between "15" and "17" bytes of the frame, for example, after "16" bytes, has been recorded.
- additional writing is performed, additional writing is performed up to, for example, the 16th byte of the first sync frame of this linking sector.
- the 16th byte of the first sync frame of the linking sector located at the beginning of one ECC block is an area overwritten by new appending, and is called a linking position. Is done.
- such a link in the direction opposite to the recording track path records buffer data after recording a part 104a-1 of the middle area in the L1 layer. This is performed when data is added in the order opposite to the track path (see link section R3).
- FIG. 11 is a conceptual diagram showing a data structure of a two-layer type optical disc according to a second embodiment of the information recording medium of the present invention and a recording or reproducing method of the optical disc by an opposite method.
- the left side shows the inner side of the optical disc
- the right side shows the outer side.
- the radial length of the lead-out area 103-1 is larger than the radial length of the lead-in area 101-0. small. Therefore, in the manufacturing process of the optical disc, it is possible to further reduce the time for forming the lead-out area 1031 in advance by using embossed pits or pits irradiated with recording laser.
- FIG. 12 is a conceptual diagram showing a data structure of a two-layer type optical disc according to a third embodiment of the information recording medium of the present invention and a recording or reproducing method of the optical disc by an opposite method.
- the left side shows the inner circumference side of the optical disc
- the right side shows the outer circumference side.
- the total information amount of the recorded information and the embossed pits or Lead-out area previously formed by pits generated by recording laser irradiation 10 Based on the start address of 3-1 and the recording capacities of the LO layer and the L1 layer, the amount of information recorded in the LO layer and the amount of information recorded in the L1 layer are approximately equalized. In the middle of the data areas 102-0 and 102-1, it is formed by recording data for another middle area 104-Oa and 104-la force buffering data.
- the outer peripheral side of the middle areas 104-Oa and 104-la is in an unrecorded state, that is, a mirror state, based on the total amount of recorded information and the like.
- the outer peripheral side of the middle area 104-Oa and 104-la is efficiently used as a recording area. It is also possible to do so.
- FIG. 13 shows a data structure of a dual-layer optical disc according to a fourth embodiment of the information recording medium of the present invention, physical sector numbers constituting ECC blocks in a recording area of the optical disc, and a parallel format of the optical disc.
- FIG. 4 is a conceptual graph showing a recording or reproducing method according to the present invention. The vertical and horizontal axes are the same as those in FIG. 2 described above.
- the two-layer optical disk 100 according to the fourth embodiment of the information recording medium of the present invention comprises the above-mentioned transparent substrate and the two recording layers laminated on the transparent substrate. That is, it is configured to include the L0 layer and the L1 layer.
- the inner peripheral side force is also applied to the outer peripheral side to apply another example of the lead-in area 101-0, the data area 102-0, and the "first buffer area” according to the present invention.
- a readout area 103-0 is provided.
- the lead-in area 101-0 is provided with the aforementioned OPC area PCA and the aforementioned RM area RMA.
- the inner peripheral side force is applied to the outer peripheral side as well, and the lead-in area 101-1 and the data area 102-1 and the read-out area which is an example of the “first buffer area” according to the present invention described above.
- G 103-1 is provided.
- An OPC area (not shown) may be provided in the lead-in area 101-1.
- the lead-out areas 103-0 and 103-1 are formed, for example, by embossed pits in the case of DVD-RW, or by pits irradiated by a recording laser in the case of DVD-R, so that the pre-recording area is Is formed in advance.
- the RM area RMA similarly to the first embodiment, the “identification information” according to the present invention indicating that the lead-out areas 103-1 and 103-1 have been formed in advance and the pre-formed area.
- the “start address information” according to the present invention indicating the start positions of the lead-out areas 103-0 and 103-1 is recorded.
- the control of the focal length and the like at the time of recording or reproduction of the optical disc 100 is the same as in the above-described opposite type.
- a parallel system is adopted as a recording or reproducing procedure of the dual-layer optical disc according to the fourth embodiment of the information recording medium of the present invention.
- this parallel method when recording or reproduction in the LO layer is completed, when recording or reproduction in the L1 layer is started, the optical pickup at the outermost circumference of the optical disk moves again toward the innermost circumference. Because of the necessity, compared to the "opposite method", the switching time to the L1 layer also takes longer for the LO layer force.
- the optical pickup moves through the lead-in area 101-0, the data area 102-0, and the middle area 104-0 to the outer peripheral side as well, the optical disc 100 is moved.
- the sector number in the recording area of increases. More specifically, the optical pickup power is the end position of the lead-in area 101-0 where the sector number is "02FFFFh" (see point A in Fig. 13), and the start of the data area 102-0 where the sector number is "030000h”.
- the position (see point B in Fig. 13) and the end position of data area 102-0 with a sector number of '1 AFFFFh' are sequentially accessed to provide a buffer serving as a buffer.
- the optical pickup includes the lead-in area 101-1, the data area 102-1 and the data area 102-1.
- the sector number in the recording area of the optical disk 100 increases as the inner peripheral force moves to the outer peripheral side of the lead-out area 103-1.More specifically, the lead-in area serves as a buffer for the optical pickup power.
- the start position of data area 102-1 with the number “030000h” (see point B in FIG. 13) and the end position of data area 102-1 with the sector number “lAFFEFh” (see point D in FIG. 13) ) Is sequentially accessed and moved to the lead-out area 103-1 to perform recording or reproduction in the L1 layer.
- the content information includes, for example, the sector numbers "03 OOOOh” to "lAFFFFh” of the data area 102-0 of the LO layer and the sector numbers "030000h” to "lAFFEFh” of the data area 102-1 of the L1 layer. In, recording or reproduction is performed at the same time as the optical pickup is continuously moved.
- Block Address is assigned one-to-one. More specifically, for example, the sector number “030000h” in the L0 layer corresponds to “000000” LBA, and the sector number “1 AFFFFh” corresponds to “17FFFF” LBA. On the other hand, “180000” LBA corresponds to the sector number "030000h” in the L1 layer, and “2FFFEF” LBA corresponds to the sector number "IAFFEFh”.
- the final information written in the finalizing process by the writing means such as the optical pickup of the information recording device described later.
- the lead-out areas 103-0 and 103-1 having a length in the radial direction of, for example, 0.5 mm or more formed in advance as pre-recorded areas at the outer peripheral ends of the L0 layer and the L1 layer. It is only necessary to add buffer data up to the start position of.
- FIG. 14 is a conceptual diagram showing a data structure of a two-layer optical disc and a recording / reproducing method of the optical disc in a parallel system according to a fifth embodiment of the information recording medium of the present invention.
- FIG. 14 the left side shows the inner side of the optical disk, and the right side shows the outer side.
- the amount of information to be recorded is substantially equalized.
- other lead-out areas 103-Oa and 103-la are formed by recording buffering data.
- the outer peripheral side of the other lead-out areas 103-Oa and 103-la is in an unrecorded state, that is, a mirror based on the total amount of recorded information.
- FIG. 15 is a conceptual diagram showing a data structure of a single-layer optical disc according to a sixth embodiment of the information recording medium of the present invention when one read-out area is formed, and a recording or reproducing method using the optical disc.
- Fig. 15 (b) is a conceptual diagram showing the method. In FIG. 15, the left side shows the inner side of the optical disc, and the right side shows the outer side.
- Fig. 15 (a) see Fig. 13 for the data structure of a single-layer optical disc according to the sixth embodiment of the information recording medium of the present invention and the recording or reproducing procedure using the optical disc.
- the sixth embodiment is an embodiment in which the two recording layers in the fourth embodiment are simplified to a single layer.
- the writing means such as the optical pickup of the information recording apparatus described above.
- the buffering data is added up to the start position of the lead-out area 103 formed in advance as a pre-recording area at the outer peripheral end of the single layer, for example, having a radial length of 0.5 mm or more. Good. Therefore, as in the first, second, and fourth embodiments, it is possible to omit the addition of buffer data to the entire lead-out area 103 during the finalizing process, and the time required for the finalizing process is greatly reduced. This makes it possible to shorten the recording operation time and achieve comfortable use by the user.
- FIG. 15 (b) the data structure of a single-layer optical disc according to the seventh embodiment of the information recording medium of the present invention and the recording or reproducing procedure using the optical disc are shown in Fig. 15 (a). This is almost the same as the sixth embodiment described with reference to FIG.
- the total information amount of the recording information and the embossed or recorded Based on the start address of the lead-out area 103 formed in advance by the pits generated by the laser irradiation and the recording capacity of the single layer, the amount of information recorded on the inner peripheral side of the other lead-out area 103-a is determined. It is determined. Then, in the middle of the data area 102, another lead-out area 103-a is formed by recording buffer data.
- the outer peripheral side of the lead-out area 103-a is set to an unrecorded state, that is, a mirror state, based on the total information amount of recorded information and the like.
- an information recording medium for example, a write-once or rewritable optical disk such as a dual-layer DVD-R or DVD-RZW, and a specific example of an information recording apparatus are described.
- the information recording / reproducing apparatus for the optical disc has been described, the present invention is also applicable to, for example, an optical disc of a multiple layer type such as a three-layer type and an information recording / reproducing apparatus of the optical disc. Further, the present invention can be applied to a large-capacity recording medium such as a Blu-ray disc and an information recording / reproducing apparatus of the recording medium.
- FIG. 16 is a schematic external perspective view showing a data structure of a two-layer type card-shaped recording medium according to an eighth embodiment of the information recording medium of the present invention and a recording or reproducing method which is an example of the opposite method.
- FIG. 17 is a schematic external perspective view showing a data structure of a two-layer type card-shaped recording medium and a parallel recording / reproducing method according to a ninth embodiment of the information recording medium of the present invention.
- FIG. 18 is a schematic perspective view showing a data structure of a two-layer type card-shaped recording medium according to a tenth embodiment of the information recording medium of the present invention and a recording or reproducing method which is another example of the opposite method.
- the second layer On the other hand, a flag indicating that the lead-out area 103C-1 at the side end is formed in advance as a pre-recording area is recorded. Then, on the vertical plane VI of the card-shaped recording medium, recording or reproduction is performed toward the one-side end force of the first layer and the other-side end. Next, after an interlayer jump from the other end of the first layer to the other end of the second layer, recording is performed from the other end of the second layer to the lead-out area 103C-1 at one end. Or, reproduction is performed.
- the lead-in area 101C-0 at one end of the first layer has a lead-out area at the other end of the first layer.
- a flag indicating that 103C-0 is formed in advance as a pre-recording area is recorded.
- recording or reproduction is performed from one end of the first layer to the other end.
- a straight line L11 1 leads from one end of the second layer to the other end. Recording or reproduction is performed toward 1.
- a flag indicating that the lead-out area 103C-0 at the one end of the first layer is formed in advance as a pre-recording area is recorded. Then, on the plane H0-1 of the card-shaped recording medium, recording or reproduction is performed from one end of the first layer to the other end. Next, there is no interlayer jump from the first layer to the second layer. Recording or reproduction is performed from the other end of the first layer to the lead-out area 103C-0 at one end.
- the present invention is not limited to the above-described embodiments, and may be modified as appropriate without departing from the spirit or spirit of the readable invention.
- the medium, the information recording apparatus and method, and the 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 method, and the computer program according to the present invention can be used for a high-density recording medium such as a DVD, for example, and can also be used for a DDVD recorder and the like. Further, for example, the present invention can also be used for an information recording device mounted on various consumer or business computer devices or connectable to various computer devices.
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Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2006511581A JP4395509B2 (ja) | 2004-03-29 | 2005-03-29 | 情報記録媒体、情報記録装置及び方法、並びにコンピュータプログラム |
EP05727366A EP1732069B1 (en) | 2004-03-29 | 2005-03-29 | Information recording medium, information recording device and method, and computer program |
AT05727366T ATE533151T1 (de) | 2004-03-29 | 2005-03-29 | Informationsaufzeichnungsmedium, informationsaufzeichnungseinrichtung und - verfahren und computerprogramm |
US10/594,502 US7539104B2 (en) | 2004-03-29 | 2005-03-29 | Information recording medium with superposed first and second recording layers |
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JP2004-096526 | 2004-03-29 |
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WO2005093728A1 true WO2005093728A1 (ja) | 2005-10-06 |
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US (1) | US7539104B2 (ja) |
EP (1) | EP1732069B1 (ja) |
JP (1) | JP4395509B2 (ja) |
KR (1) | KR100832413B1 (ja) |
CN (1) | CN100483516C (ja) |
AT (1) | ATE533151T1 (ja) |
TW (1) | TWI355654B (ja) |
WO (1) | WO2005093728A1 (ja) |
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WO2005093727A1 (ja) | 2004-03-29 | 2005-10-06 | Pioneer Corporation | 情報記録媒体、情報記録装置及び方法、並びにコンピュータプログラム |
KR101044938B1 (ko) * | 2004-07-10 | 2011-06-28 | 삼성전자주식회사 | 복수의 기록층을 구비한 정보 저장 매체 및 기록/재생 장치 |
JPWO2007072862A1 (ja) * | 2005-12-22 | 2009-06-04 | パイオニア株式会社 | 情報記録装置及び方法、並びにコンピュータプログラム |
WO2010082505A1 (ja) * | 2009-01-16 | 2010-07-22 | シャープ株式会社 | 光情報記録媒体、光情報記録媒体記録再生装置 |
WO2011007841A1 (ja) * | 2009-07-17 | 2011-01-20 | シャープ株式会社 | 光情報記録媒体 |
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- 2005-03-29 CN CNB2005800104705A patent/CN100483516C/zh active Active
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- 2005-03-29 JP JP2006511581A patent/JP4395509B2/ja active Active
- 2005-03-29 WO PCT/JP2005/005872 patent/WO2005093728A1/ja active Application Filing
- 2005-03-29 KR KR1020067022597A patent/KR100832413B1/ko active IP Right Grant
- 2005-03-29 EP EP05727366A patent/EP1732069B1/en active Active
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Also Published As
Publication number | Publication date |
---|---|
ATE533151T1 (de) | 2011-11-15 |
EP1732069B1 (en) | 2011-11-09 |
CN1938766A (zh) | 2007-03-28 |
CN100483516C (zh) | 2009-04-29 |
JP4395509B2 (ja) | 2010-01-13 |
TW200605043A (en) | 2006-02-01 |
KR100832413B1 (ko) | 2008-05-26 |
US20080232232A1 (en) | 2008-09-25 |
JPWO2005093728A1 (ja) | 2008-07-31 |
TWI355654B (en) | 2012-01-01 |
US7539104B2 (en) | 2009-05-26 |
EP1732069A1 (en) | 2006-12-13 |
KR20070006877A (ko) | 2007-01-11 |
EP1732069A4 (en) | 2009-06-03 |
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