WO2005031720A1 - 情報記録媒体、情報記録装置及び方法 - Google Patents
情報記録媒体、情報記録装置及び方法 Download PDFInfo
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- WO2005031720A1 WO2005031720A1 PCT/JP2004/014231 JP2004014231W WO2005031720A1 WO 2005031720 A1 WO2005031720 A1 WO 2005031720A1 JP 2004014231 W JP2004014231 W JP 2004014231W WO 2005031720 A1 WO2005031720 A1 WO 2005031720A1
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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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/006—Overwriting
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
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- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
- G11B7/1263—Power control during transducing, e.g. by monitoring
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24035—Recording layers
- G11B7/24038—Multiple laminated recording layers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- 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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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B2020/10935—Digital recording or reproducing wherein a time constraint must be met
- G11B2020/10981—Recording or reproducing data when the data rate or the relative speed between record carrier and transducer is variable
- G11B2020/1099—Recording or reproducing data when the data rate or the relative speed between record carrier and transducer is variable wherein a disc is spun at a variable speed
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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
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1278—Physical format specifications of the record carrier, e.g. compliance with a specific standard, recording density, number of layers, start of data zone or lead-out
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/218—Write-once discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
- G11B2220/235—Multilayer discs, i.e. multiple recording layers accessed from the same side
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
Definitions
- Information recording medium information recording apparatus and method
- the present invention relates to a technical field of an information recording medium such as a DVD, and an information recording apparatus and method such as a DVD recorder.
- a maximum speed at which information can be recorded on a recording layer (referred to as a "recordable maximum speed" as appropriate in the present application) is defined according to the type.
- the information recording device is configured to record information at a recording speed suitable for the function of the information recording device within the range of the recordable maximum speed.
- information recording media such as a multi-layer, dual-layer, or multiple-layer optical disc in which a plurality of recording layers are stacked on the same substrate have also been developed. ing.
- the information recording apparatus performs recording at a recording speed defined for such a multilayer type information recording medium, for example, first on the recording layer located at the uppermost layer, and thereafter, on the second layer. Recording will be performed on the recording layer located.
- Patent Document 1 JP 2001-23237 A
- the maximum speed at which data can be physically recorded may be different for each recording layer due to design factors and the like. In a strict sense, their top speeds are more or less different, mainly due to the sensitivity of each recording layer individually. Further, there may be applications or specifications in which it is advantageous to positively make a difference in the maximum recordable speed between the upper recording layer and the lower recording layer. In this way, when there is a difference in the maximum recordable speed in each recording layer, if the maximum recordable speed is defined for each information recording medium as in the background art described above, the maximum recordable speed becomes the largest. Low !, according to the recording layer, Therefore, the maximum recordable speed is defined.
- the recording speed of the other recording layer is limited by the recording speed of the recording layer having the lowest maximum recordable speed. There is a technical problem that recording cannot be performed.
- the present invention has been made in view of, for example, the above-described conventional problems.
- a multi-layer type capable of recording information at an appropriate recording speed for each recording layer is provided. It is an object to provide an information recording medium, an information recording device and an information recording method.
- an information recording medium is an information recording medium including a plurality of recording layers for recording information, respectively, wherein the plurality of recording layers At least one has a management information area in which recording speed management information that defines the maximum recordable speed when recording the information is recorded.
- an information recording apparatus is an information recording medium including a plurality of recording layers for recording information, respectively, wherein the plurality of recording layers
- At least one of the above is an information recording device that records information on an information recording medium having a management information area in which recording speed management information for defining a maximum recordable speed when recording the information is recorded.
- Reading means for reading the recording speed management information from an information area; and a recording target layer on which the information is to be recorded among the maximum recordable speeds for each of the plurality of recording layers specified by the read recording speed management information.
- Recording speed setting means for setting the maximum recordable speed corresponding to the recording target layer within the range of the maximum recordable speed corresponding to the recording speed, and the recording pair at the set maximum recordable speed. Recording means for recording the information on the elephant layer.
- an information recording method is an information recording medium including a plurality of recording layers for recording information, respectively, wherein the plurality of recording layers At least one of the two is that information is recorded on an information recording medium having a management information area in which recording speed management information for defining a maximum recordable speed when recording the information is recorded.
- An information recording method for recording comprising: a reading step of reading the recording speed management information from the management information area; and a reading maximum speed of the plurality of recording layers defined by the read recording speed management information.
- FIG. 1 shows the basic structure of an optical disc according to a first embodiment of the information recording medium of the present invention
- the upper part is a schematic plan view of the optical disc having a plurality of recording areas, and is associated with this.
- the lower part is a schematic conceptual diagram of the recording area structure in the radial direction.
- FIG. 2 is a partially enlarged perspective view of a recording surface of the optical disc according to the first embodiment of the present invention.
- FIG. 3 is a data structure diagram conceptually showing an example of a data structure of an optical disc in a parallel system according to a first embodiment of the present invention.
- FIG. 4 is a table diagram showing classification of land pre-pit data recorded in a lead-in area of an L1 layer of the optical disc according to the first embodiment of the present invention.
- FIG. 5 is a table showing an arrangement of land prepits in a lead-in area and an ECC block address in an L1 layer of the optical disc according to the first embodiment of the present invention.
- FIG. 6 is a table diagram showing classification of land pre-pit data recorded in a lead-in area of an LO layer of the optical disc according to the first embodiment of the present invention.
- FIG. 7 is a table showing an arrangement of land prepits in a lead-in area and an ECC block address in an LO layer of the optical disc according to the first embodiment of the present invention.
- FIG. 8 is a table showing a detailed structure of data of a land prepit having a field identification number of ID # 1 recorded in a lead-in area of an LO layer and an L1 layer of an optical disc according to a first embodiment of the present invention; It is a figure.
- FIG. 9 is a data structure diagram conceptually showing an example of a data structure of an optical disc in the case of an opposite method according to a second embodiment of the present invention.
- FIG. 10 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 second embodiment of the present invention.
- FIG. 11 is a table showing an arrangement of land prepits in a lead-in area and an ECC block address in an LO layer of an optical disc according to a second embodiment of the present invention.
- FIG. 12 is a block diagram of an information recording / reproducing device 300 according to an embodiment of the present invention.
- FIG. 13 is a flowchart showing the recording operation of the optical disc by the information recording device according to the embodiment of the present invention.
- An embodiment according to the information recording medium of the present invention is an information recording medium including a plurality of recording layers for recording information, at least one of the plurality of recording layers stores the information. It has a management information area in which recording speed management information that defines the maximum recordable speed when recording is recorded.
- a plurality of information recording media laminated on one surface of a substrate that is, constituting a multilayer information recording medium such as a multilayer type, dual layer or multiple layer type optical disk, for example.
- At least one of the recording layers has a management information area in or near a lead-in area near the inner periphery thereof, for example.
- recording speed management information for specifying the maximum recordable speed for each of a plurality of recording layers when information is recorded on the information recording medium is recorded.
- This recording speed management information may be recorded at the time of initial production of the information recording medium, or may be recorded at the time of pre-formatting or formatting thereafter.
- the recording speed management information may be determined, changed, or updated according to the error rate or the like at that time, Alternatively, a default value may be recorded in the management information legal area before the information is recorded, and then updated with a non-default value.
- the recording speed management information is information directly indicating the maximum recordable speed (for example, “ It may be recording speed information ”)! Or information indirectly indicating the maximum recordable speed (for example,” identification information "described later).
- the recording speed management information is recorded in the management information area as described above, at the time of recording by an information recording device such as an optical device recorder, the recording speed management information is first read. Then, based on this recording speed management information, the maximum recordable speed can be obtained directly or indirectly (for example, as “recording speed information” described later) for each of a plurality of recording layers. (Via "identification information” described later). Furthermore, information (for example, “recording condition information” indicating an optimum recording condition, which will be described later) that can be acquired as information associated therewith, for example, specifying an optimal power strategy of the recording laser, etc. The information may be obtained for each of a plurality of recording layers.
- the recording on the one recording layer obtained based on the recording speed management information is performed. Recording can be performed after setting the recording speed according to the maximum possible speed VI.
- the maximum recording speed V2 (acquired based on the recording speed management information) for the other recording layers is also used. However, generally, recording can be performed after setting the recording speed according to (V2 is different or equal to VI). In any case, compared with the case where the maximum recordable speed is defined for each information recording medium as in the background art, the other maximum recordable speeds are lower and the recording speed in the recording layer is limited by the recording speed. Recording at the highest possible recording speed is possible for each of the multiple recording layers.
- the recording speed management information includes recording speed information indicating the maximum recordable speed for each of the plurality of recording layers.
- the information recording apparatus can directly acquire the maximum recordable speed for each of the plurality of recording layers. Therefore, according to the maximum recordable speed and the function of the information recording apparatus, it is possible to perform recording at each of the plurality of recording layers at the highest possible recording speed.
- the recording speed management information may be configured to further include recording condition information indicating an optimum recording condition for each of the plurality of recording layers in a form corresponding to the recording speed information.
- recording condition information indicating the optimal recording conditions such as the optimal power of the recording laser and the strategy can also be acquired. It becomes. Therefore, in the information recording apparatus, recording can be performed on each of the plurality of recording layers under optimum recording conditions.
- the recording speed management information may further include a table in which the recording speed information and the recording condition information are registered for each of the plurality of recording layers and each of which has an index.
- the recording speed information and the recording condition information are set for Xl (1x speed) and X2 (2x speed).
- index P3 are registered in the table with index P3 as X1 (1x speed), X2 (2x speed), X4 (4x speed), and so on. Therefore, in the information recording apparatus, by referring to the table, the maximum recordable speed and the optimal recording conditions such as the optimal laser pattern and the strategy can be acquired reliably and quickly.
- recording condition information indicating an optimum recording condition for each of a plurality of recordable maximum speeds is registered.
- the recording speed management information is recorded by an information recording device, and includes recording speed information indicating the maximum recordable speed for each of the plurality of recording layers.
- the information recording apparatus acquires recording condition information registered in advance as corresponding to the recording speed information thus read. Is obtained. Therefore, the recording speed and the optimum recording speed of each recording layer can be relatively easily determined for each recording layer based on the recording speed information acquired from the information recording medium and the recording condition information acquired from the information recording device. It is possible to record information under appropriate recording conditions.
- the information recording medium includes a recording speed indicating the maximum speed for each piece of identification information for identifying a plurality of information recording media.
- the information and the recording condition information indicating the optimum recording condition for each of the plurality of recordable maximum speeds are recorded by an information recording device registered.
- the recording speed management information identifies the information recording medium. Contains identification information.
- the information recording device is registered in advance as corresponding to the identification information thus read!
- the recording speed information and the recording condition information are obtained. Therefore, based on the identification information obtained from the information recording medium side, the recording speed information and the recording condition information obtained from the information recording apparatus side, the respective recording layers can be comparatively easily obtained. It is possible to record information at an optimum recording speed and an optimum recording condition.
- the recording speed management information is at least partially recorded as pre-information on the information recording medium at the initial production of the information recording medium. I have.
- the maximum recordable speed for each of the plurality of recording layers is experimentally and empirically determined at the beginning of manufacturing, so that the recording speed management information that defines this is: For example, it is recorded in advance as pre-information such as pre-pits such as land pre-pits and emboss pits on an optical disc. Then, at the time of recording, first, by reading out the pre-information, the maximum recordable speed can be directly obtained for each of a plurality of recording layers. As described above, the recording speed management information can be reliably read as pre-information.
- the recording speed management information is at least partly information that can be additionally written or rewritten on the information recording medium. Recorded or updated.
- the default maximum recordable speed is recorded in the information recording medium in advance or registered in the information recording device in advance.
- the error rate increases depending on the function of the information recording apparatus such as an optical disk recorder of an individual model for recording the information recording medium, or when the information recording apparatus performs a test or actual recording.
- a new maximum recordable speed is set according to the playback status such as.
- the recording speed management information defining the new maximum recordable speed is additionally written or updated in the management information area of the information recording medium. Therefore, it is possible to easily acquire the maximum recordable speed suitable for the actual use situation and environment after the additional recording speed management information is added or updated.
- the management information area is arranged near an inner periphery of an uppermost layer among the plurality of recording layers, and the recording speed management is performed.
- the information includes a portion where information is collectively recorded on the plurality of recording layers.
- the management information area is arranged near the inner periphery of the uppermost layer, and in this area, the recording speed management information is collectively recorded for a plurality of recording layers.
- the recording speed management information is collectively recorded for all the recording layers, thereby directly or indirectly acquiring all the recording layers. Recordable maximum speed and optimum recording conditions can be obtained. Therefore, when recording is continued, even when the interlayer jump is performed once or repeatedly, the recording speed of the recording layer to be recorded after the interlayer jump is set in advance or quickly before performing the interlayer jump. It is very advantageous because it can be set.
- the management information area is provided for each of the plurality of recording layers.
- the recording speed management information for all the recording layers is acquired at the time of the recording, It is also possible to separately acquire the recording speed management information for the layers.
- the plurality of maximum recordable speeds are defined to be higher as the upper layer side of the plurality of recording layers. Yes.
- the sensitivity of the upper layer side recording layer is reduced. It is convenient to set the sensitivity relatively higher than the sensitivity of the lower recording layer. That is, since the upper recording layer is hardly or practically not affected by the presence of the lower recording layer, the upper layer is formed by adopting, for example, a configuration having good sensitivity to the recording laser. The higher the recording layer is, the higher the recording speed can be. In addition, while actively increasing the maximum recordable speed of the upper recording layer, the upper recording layer is frequently used during recording (for example, recording is started from the upper layer, and the upper layer is already recorded. This is very advantageous also in the case where recording to the lower layer is started from the beginning.
- An embodiment according to the information recording apparatus of the present invention is an information recording medium including a plurality of recording layers for recording information, at least one of the plurality of recording layers stores the information. What is claimed is: 1. An information recording apparatus for recording information on an information recording medium having a management information area in which recording speed management information for defining a maximum recordable speed at the time of recording is recorded, wherein said recording speed management information is recorded from said management information area. Reading means for reading, and among the maximum recordable speeds for each of the plurality of recording layers specified by the read recording speed management information, the recordable maximum speed corresponding to the recording target layer on which the information is to be recorded. Recording speed setting means for setting a recording speed corresponding to the recording target layer within a range of high speed, and recording means for recording the information on the recording target layer at the set recording speed. Prepare.
- the recording speed management information recorded in the management information area of the information recording medium is read in advance for all of the plurality of layers by the reading means. Is read. Then, based on the recording speed management information, the maximum recordable speed can be obtained directly (for example, as the above-mentioned “recording speed information”) or indirectly (for example, as described above) for each of a plurality of recording layers. (Via the "identification information" of this).
- Information for example, “recording condition information” indicating the above-mentioned optimum recording condition
- Information indicating the above-mentioned optimum recording condition
- the strategy may be obtained directly or indirectly for each of a plurality of recording layers.
- the recording speed corresponding to the recording target layer is set by the recording speed setting means within the range of the maximum recordable velocity obtained for the recording target layer! Then, recording is performed at the recording speed set in this way. Further, for example, an interlayer jump is performed under a parallel system or an opposite system, and recording is performed between different recording layers.
- the recording speed management information includes recording speed information indicating the maximum recordable speed for each of the plurality of recording layers.
- the recording speed information includes recording condition information indicating an optimum recording condition for each of the plurality of recording layers, and the recording speed setting means reads the recording speed information read as at least a part of the recording speed management information. And setting the recording speed and recording conditions corresponding to the recording target layer based on the recording condition information.
- the recording speed information and the recording condition information are recorded on the information recording medium side, at the time of recording, the information is first read, so that the information recording apparatus side can easily read the information. Recording speed and recording conditions can be set. Further, it is possible to save the trouble of recording the information in a storage means such as a memory in advance at the time of manufacturing the information recording device.
- the recording speed management information includes recording speed information indicating the maximum recordable speed for each of the plurality of recording layers.
- a storage unit in which recording condition information indicating an optimum recording condition for each possible maximum speed is registered, wherein the reading unit reads the recording speed information as at least a part of the recording speed management information;
- the recording speed setting unit is configured to read the recording speed information from the read recording speed information and the recording condition information registered in the storage unit. Based on the information corresponding to the recorded recording speed information, the recording speed and the recording conditions are set.
- the recording speed information is recorded on the information recording medium side, and the recording condition information is recorded on the information recording device side.
- the recording speed information is recorded on the information recording device side.
- the recording speed management information includes identification information for identifying the information recording medium, and identification information for identifying each of the plurality of information recording media.
- the apparatus further comprises a storage unit in which recording speed information indicating the maximum speed and recording condition information indicating optimum recording conditions for each of the plurality of maximum recordable speeds are registered, and wherein the reading unit performs the recording speed management.
- the identification information is read as at least a part of the information, and the recording speed setting unit corresponds to the read identification information among the recording speed information and the recording condition information registered in the storage unit.
- the recording speed and the recording conditions are set based on the data.
- the recording speed information and the recording condition information are recorded on the information recording device side, at the time of recording, first, when the identification information is read, the corresponding recording speed and recording condition are determined. Can be set easily.
- An embodiment according to the information recording method of the present invention is an information recording medium including a plurality of recording layers for recording information, respectively, wherein at least one of the plurality of recording layers stores the information.
- What is claimed is: 1.
- a recording speed setting step of setting a recording speed corresponding to the recording target layer within a range of a high speed, a recording for recording the information on the recording target layer at the set recording speed.
- the highest possible recording speed for each of the plurality of recording layers is possible. Can be recorded.
- the information recording medium includes a substrate and a plurality of recording layers having a management information area in which recording speed management information is recorded.
- the information recording apparatus and the method include a reading unit and a step, a recording speed setting unit and a step, and a recording unit and a step. Therefore, recording at the highest possible recording speed for each of the plurality of recording layers is possible.
- FIG. 1 shows a basic structure of an optical disc according to a first embodiment of the information recording medium of the present invention, wherein an upper part is a schematic plan view of an optical disc having a plurality of recording areas, and a lower part corresponding thereto.
- the portion is a schematic conceptual diagram of the recording area structure in the radial direction.
- the optical disc 100 is, for example, on a recording surface on a disc body having a diameter of about 12 cm like a DVD, with the center hole 1 as the center and the inner peripheral force directed toward the outer peripheral side.
- a lead-in area 101, a data zone 102, and a lead-out area 103 according to the example are provided.
- a track 10 such as a groove track and a land track is spirally or concentrically centered on the center hole 1.
- ECC blocks 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 and the lead-out area 103 do not exist, the data structure described below can be constructed. Further, as described later, the lead-in area 101 and the lead-out 103 may have a further subdivided configuration.
- the optical disc 100 according to the first embodiment is configured as a two-layer optical disc in which a plurality of data zones 102 and the like are formed in a laminated structure, for example.
- FIG. 2 is a partially enlarged perspective view of the recording surface of the optical disc of the first embodiment.
- the optical disc 100 is placed on a disc-shaped transparent substrate 106.
- the first recording layer 107 of the phase change type or the irreversible change recording type by heating or the like constituting the information recording surface is laminated (on the lower side in FIG. 2), and further thereon (the lower side in FIG. 2). And a transflective film 108 are laminated.
- a dull track GT and a land track LT are alternately formed on the information recording surface of the first recording layer 107 which also has a surface force.
- the laser beam LB is irradiated onto the group track GT via the transparent substrate 106.
- the recording layer 107 For example, at the time of recording, by irradiating a laser beam LB with a recording laser beam, irreversible change recording is performed on the first recording layer 107 by writing or heating on the first recording layer 107 according to the recording data.
- the recording data written in the first recording layer 107 is read by irradiating the laser beam LB with the reproduction laser power weaker than the recording laser power.
- the groove track GT is rocked at a constant amplitude and a constant spatial frequency. That is, the groove track GT is wobbled, and the period of the wobbled 109 is set to a predetermined value.
- address pits called land pre-pits LP indicating pre-format address information are formed.
- these two addressing methods ie, Poble 109 and land pre-pit LP
- the wobble 109 of the groove track GT is converted to a predetermined one such as frequency modulation and phase modulation.
- Pre-format address information may be recorded in advance by modulating the data using a modulation method.
- the second recording layer 207 is formed on the transflective film 108 (the lower side in FIG. 2), and the reflective film 208 is further formed thereon (the lower side in FIG. 2). Have been.
- the second recording layer 207 is irradiated with a laser beam LB through the transparent substrate 106, the first recording layer 107, and the semi-transmissive reflection film 108, and thus, similarly to the first recording layer 107, has a phase change type or heating. It is configured to be able to perform irreversible change recording type recording and reproduction by means such as.
- the second recording layer 207 and the reflection film 208 may be formed on the transparent substrate 106 on which the first recording layer 107 and the transflective film 108 are formed, or may be formed on another substrate. After forming the film, it may be bonded to the transparent substrate 106. Note that a transparent intermediate layer 205 made of a transparent adhesive or the like is provided between the semi-transmissive reflective film 108 and the second recording layer 207 as appropriate according to the manufacturing method.
- recording / reproducing on the first recording layer 107 or recording / reproducing on the first recording layer 107 is performed depending on which recording layer the laser beam LB is focused on. Recording and reproduction on the two recording layers 207 are performed.
- the optical disc 100 according to the first embodiment is, as shown in FIG. 2, a single-layer double-sided, ie, not limited to a dual-layer, single-layer double-sided, ie, double-sided or double-layer double-sided. That is, it may be a dual layer double side. Further, the present invention is not limited to the optical disk having two recording layers as described above, and may be a multilayer optical disk having three or more layers.
- FIG. 3 is a data structure diagram conceptually showing an example of the data structure of the optical disc in the case of the parallel system according to the first embodiment.
- the optical disc 100 includes the L0 layer and the L1 layer as the first and second recording layers shown in FIG.
- a lead-in area 101-0, a data zone 102-0 and a lead-out area 103-0 are provided on the inner peripheral side and the outer peripheral side.
- An OPC (Optimum Power Calibration) area (not shown) is provided in the lead-in area 101-0.
- the LI layer is also provided with a lead-in area 101-1, a data zone 102-1 and a lead-out area 103-1 by applying an inner peripheral force to an outer peripheral side.
- the lead-in area 101-1 also includes an OPC area (not shown).
- an optical pickup of the information recording / reproducing apparatus which will be described later, irradiates the laser light from the side of the substrate (not shown), that is, toward the upper side of the lower force in FIG.
- the moving distance and direction of the optical disk in the radial direction are controlled.
- data is recorded on each recording layer, and the recorded data is reproduced when functioning as an information reproducing device.
- the normal mode is adopted. Have been.
- the parallel system means that the optical pickup of the information recording / reproducing apparatus is moved from the inner circumference side to the outer circumference side in the LO layer, that is, in the right direction of the arrow in FIG. Similarly to the above, also in the L1 layer, the optical pickup is moved from the inner circumference to the outer circumference, that is, in the right direction of the arrow in FIG.
- the data of the land pre-pit recorded in the lead-in area of the LO layer and the L1 layer of the optical disk according to the first embodiment employing the parallel system will be described.
- the type, arrangement of land pre-pits in the lead-in area, and the principle by which the maximum recordable speed and the optimum recording conditions are identified by the land pre-pits will be described.
- the L1 layer, whose maximum recordable speed is 1 ⁇ , which is a low speed will be described first, and then, the LO layer, whose maximum recordable speed is 4 ⁇ , which is a high speed. .
- FIG. 4 is a table showing the classification of land pre-pit data recorded in the lead-in area of the L1 layer of the optical disc according to the first embodiment.
- This table diagram shows the field identification number (Field ID), the information to be recorded (Content), and the recording location (Location) on the left column.
- land pre-pit data recorded in the lead-in area of the L1 layer is classified into ID # 0 to ID # 5 according to field identification numbers.
- the land pre-pit 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 pre-pit identified by ID # 1 information such as extended information that constitutes an example of the index according to the present invention, which will be described later, is recorded.
- the land pre-pits are arranged in the lead-in area of the optical disc.
- 1x speed strategy information which is an example of the recording speed information and the recording condition information according to the present invention, is recorded. These land pre-pits are arranged in the lead-in area of the optical disc.
- FIG. 5 is a table showing the arrangement of land prepits in the lead-in area and the ECC block address in the L1 layer of the optical disc according to the first embodiment employing the parallel system. 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 # 5 or ID # 0 are recorded periodically in the lead-in area of the L1 layer. Have been. These land pre-pits are, for example, ECs from “FFDD05” to “FFCFFF”. Located at c block address.
- FIG. 6 is a table diagram showing classification of land pre-pit data recorded in the lead-in area of the LO layer of the optical disc according to the first embodiment.
- the structure of this table diagram is the same as that of FIG. 4 described above.
- land pre-pit data recorded in the lead-in area of the LO layer is classified into ID # 0 to ID # 13 by a field identification number (eld ID).
- FIG. 7 is a table showing the arrangement of land prepits in the lead-in area and the ECC block address in the LO layer of the optical disc according to the first embodiment employing the parallel system.
- the structure of this table diagram is the same as that of FIG. 5 described above.
- land prepits identified by the field identification numbers of ID # 1 to ID # 13 or ID # 0 are recorded periodically in the lead-in area of the LO layer. Have been. These land pre-pits are arranged, for example, at ECC block addresses from “FFDD05” to “FFCFFF”.
- FIG. 8 shows a detailed structure of data of the land prepit having the field identification number ID # 1 recorded in the lead-in area of the LO layer and the L1 layer of the optical disc according to the first embodiment.
- data represented by a binary bit string of a matrix of 16 rows x 13 columns is recorded in ID # 1.
- the bits in the first column are SYNC bits, that is, bits for establishing synchronization.
- the bits in the second to fifth columns are bit strings recording data types. The actual data is recorded in the bits in the 6th to 13th columns.
- data of data type "0000” to “0010” means a relative block address
- data of data type "0011” to “0101” indicates In a sense, the latter half of the data of data type "1100", that is, the data of the tenth column and the thirteenth column means extended information which constitutes an example of the index according to the present invention.
- the extended information recorded in the land pre-pit having the field identification number of ID # 1 is read by the information recording / reproducing apparatus described later, so that the maximum recordable speed in the L0 layer and the L1 layer is improved. Optimum recording conditions can be selected.
- the extended information shown in the lower part of Fig. 8 is composed of a code and a maximum field identification number. More specifically, when the extension information code is "0000", the maximum field identification number is "ID # 5", and when the extension information code is "0010”, the maximum field identification number is Is “ID # 13”, and when the code of the extended information is “0011”, the maximum field identification number is “ID # 18”.
- extension information recorded in the land pre-pit having the field identification number of the L1 layer of ID # 1 is set to "0000"
- the extension information is read by the information recording / reproducing apparatus.
- the maximum field identification number is “ID # 5”
- the 1 ⁇ speed strategy information can be selected as described with reference to FIGS. 4 and 5 described above.
- FIG. 9 is a data structure diagram conceptually showing an example of the data structure of the optical disc according to the second embodiment.
- optical disc according to the second embodiment are the same as those of the optical disc according to the first embodiment.
- the optical disc 100 includes a substrate (not shown) and two recording layers laminated on the substrate, that is, an LO layer and an L1 layer.
- a lead-in area 101-0, a data zone 102-0 and a middle area 104-0 are provided on the inner circumference side and the outer circumference side.
- a lead-in / out 103-1, a data zone 102-1 and a middle area 104-1 are provided from the inner peripheral side to the outer peripheral side.
- the opposite method is adopted in the method of recording or reproducing data.
- the opposite method means that the optical pickup is moved in the LO layer by the information recording / reproducing apparatus toward the inner peripheral force, that is, rightward movement of the arrow in FIG. Further, in the L1 layer, the optical pickup is moved so that the outer peripheral force is also directed to the inner peripheral side, that is, the optical pickup is moved leftward as indicated by the arrow in FIG.
- FIG. 4 is a table showing classification of land pre-pit data recorded in a lead-in area of an LO layer of the optical disc according to the embodiment.
- the structure of this table diagram is the same as that of FIG. 4 described above.
- land pre-pit data recorded in the lead-in area of the LO layer is classified into ID # 0 to ID # 18 by a field identification number (Field ID).
- the land pre-pits identified by ID # 0 to ID # 5 include the land pre-pits recorded in the lead-in area of the L1 layer described in the first embodiment with reference to FIG. It is the same as the data of.
- the land pre-pit identified by ID # 6 is recorded in the lead-in area of the! ⁇ ) Layer of other information recording optical disks.
- the 1x speed strategy information for the LO layer which constitutes an example of the recording speed information and the recording condition information according to the present invention, includes: Recorded in the lead-in area of the LO layer.
- the double speed strategy information for the L0 layer which constitutes an example of the recording speed information and the recording condition information according to the present invention, It is recorded in the lead-in area of the L0 layer.
- the 4x speed strategy information for the L0 layer which constitutes an example of the recording speed information and the recording condition information according to the present invention, includes: It is recorded in the lead-in area of the L0 layer.
- FIG. 11 is a table showing an arrangement of land prepits in the lead-in area and an ECC block address in the L0 layer of the optical disc according to the second embodiment employing the opposite method. Note that the structure of this table diagram is the same as that of FIG. 5 in the first embodiment described above. [0116] As shown in Fig. 11, land pre-pits 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. I have. These land pre-pits are arranged, for example, at ECC block addresses from “FFDD05” to “FFCFFF”.
- the extended information recorded in the land pre-pit having the field identification number of ID # 1 shown in Fig. 8 is read by the information recording / reproducing device described later, so that recording on the LO layer and the L1 layer is possible.
- the maximum speed and the optimum recording conditions can be selected.
- the extended information recorded in the land pre-pit having the field identification number ID # 1 of the LO layer was set to "0011".
- the maximum field identification number becomes “ID # 18”, and as described in FIG. 10 and FIG. 11 described above, for the L1 layer,
- 1 ⁇ speed strategy information is selected, 1 ⁇ speed, 2 ⁇ speed or 4 ⁇ speed strategy information can be selected for the LO layer.
- this embodiment is an example in which the information recording apparatus according to the present invention is applied to the above-described information recording / reproducing apparatus for an optical disk.
- FIG. 12 is a block diagram of the information recording / reproducing apparatus 300 according to the embodiment of the present invention.
- the information recording / reproducing device 300 has a function of recording the recording data on the optical disc 100 and a function of reproducing the recording data recorded on the optical disc 100.
- the information recording / reproducing device 300 is a device that records information on the optical disc 100 and reads information recorded on the optical disc 100 under the control of the processor 354.
- the information recording / reproducing apparatus 300 includes an optical disc 100, a spindle motor 351 and an optical pickup 3. 52, a signal recording / reproducing means 353, a processor (drive control means) 354, a memory 355, a data input / output control means 306, an operation button 310, a display panel 311, and a bus 357.
- the spindle motor 351 rotates and stops the optical disc 100, and operates when accessing the optical disc. More specifically, the spindle motor 351 is configured to rotate and stop the optical disc 100 at a predetermined speed while receiving spindle servo from a servo unit (not shown) or the like.
- the optical pickup 352 performs recording and reproduction on the optical disc 100, and includes a laser device and a lens. More specifically, the optical pickup 352 irradiates the optical disc 100 with a light beam such as a laser beam at a first power as read light at the time of reproduction, and at a second power as write light at the time of recording. Irradiate while modulating.
- a light beam such as a laser beam at a first power as read light at the time of reproduction, and at a second power as write light at the time of recording. Irradiate while modulating.
- the signal recording / reproducing means 353 performs recording / reproducing on the optical disc 100 by controlling the spindle motor 351 and the optical pickup 352.
- the memory 355 is used for all data processing in the disk drive 300, such as a buffer area for recording / reproducing data and an area used as an intermediate buffer when converting to data used by the signal recording / reproducing means 353. You.
- the memory 355 is composed of a ROM area for storing programs for operating these recorder devices, a buffer area for compression / expansion of video data, and a RAM area for storing variables necessary for the program operation. Is done.
- the memory 355 constitutes an example of the storage means according to the present invention, and in this memory 355, the maximum recordable speed in the L1 layer in addition to or instead of the L0 layer And the optimal recording conditions such as the optimal laser power and strategy are obtained.
- the processor (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. Do. Normally, software for operating the processor 354 is stored in the memory 355.
- the data input / output control means 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 When the input / output is a video signal, the data received from the outside is compressed (encoded) into the MPEG format at the time of data input and then output to the memory 355. At the time of data output, the MPEG format received from the memory 355 is output. Decompress (decode) data and output to outside.
- the operation control means 307 receives and displays an operation instruction to the information recording / reproducing apparatus 300, and transmits an instruction by an operation button 310 such as recording or reproduction to the processor 354, and outputs the information recording / reproducing apparatus 300 during recording or reproduction.
- the operation status of is output to a display panel 311 such as a fluorescent tube.
- a household device which is an example of the information recording / reproducing device 300, is a recorder device that records and reproduces video.
- This recorder device is a device that records a video signal from a broadcast receiving tuner or an external connection terminal onto a disc, and outputs the video signal reproduced from the disc to an external display device such as a television.
- the operation as a recorder device is performed by causing the processor 354 to execute the program stored in the memory 355.
- FIG. 13 is a flowchart showing the recording operation of the optical disc by the information recording device according to the embodiment of the present invention.
- an example of an index according to the present invention in the lead-in area of the L0 layer and the L1 layer described above is configured by an optical pickup of the information recording apparatus.
- the extended information to be read is read and obtained (step S101).
- the extended information in the lead-in area of the L0 layer is read and acquired.
- the maximum recordable speed in the L1 layer and the optimal recording conditions such as the optimal laser power and the strategy in the L1 layer are acquired in the memory or the like of the information recording apparatus.
- the optical disc according to the embodiment of the present invention is inserted.
- Step S102 the optical pickup of the information recording device is moved to a target recording layer.
- Step S103 it is determined whether or not the target recording layer is the LO layer (step S103).
- the target recording layer is the LO layer (Step S103: Yes)
- the optimum recording conditions such as the maximum recordable speed and the optimum laser power and strategy in the LO layer are selected (Step S104). .
- step S103 determines whether the target recording layer is the L1 layer. If the result of determination in step S103 is that the target recording layer is the L1 layer (step S103: No), the optimum recording conditions such as the maximum recordable speed in the L1 layer and the optimal laser power and strategy are determined. Selected (step S105).
- the target recording layer is irradiated with a recording laser under the selected optimum recording condition, and actual recording is performed (step S 106).
- the present invention is applicable to the power described in the parallel method and the opposite method, for example, to another method in which interlayer jumps are frequently performed.
- 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 information recording medium, the information recording device and the method are also included in the technical scope of the present invention.
- the information recording medium, the information recording apparatus, and the method according to the present invention can be used for an information recording medium such as a DVD, and an information recording apparatus and method such as a DVD recorder.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2005514247A JPWO2005031720A1 (ja) | 2003-09-30 | 2004-09-29 | 情報記録媒体、情報記録装置及び方法 |
US10/573,985 US20080192599A1 (en) | 2003-09-30 | 2004-09-29 | Information Recording Medium, Information Recording Device, and Method |
EP04788297A EP1672623A4 (en) | 2003-09-30 | 2004-09-29 | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING DEVICE AND METHOD |
US11/392,906 US20060233523A1 (en) | 2003-09-30 | 2006-03-30 | Information recording medium, and information recording apparatus and method |
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JP2003340531 | 2003-09-30 | ||
JP2003-340531 | 2003-09-30 |
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US11/392,906 Division US20060233523A1 (en) | 2003-09-30 | 2006-03-30 | Information recording medium, and information recording apparatus and method |
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EP (2) | EP1672623A4 (ja) |
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CN (2) | CN100552779C (ja) |
WO (1) | WO2005031720A1 (ja) |
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JP6591202B2 (ja) * | 2014-07-18 | 2019-10-16 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカPanasonic Intellectual Property Corporation of America | 記録媒体、再生装置およびその方法 |
US9348529B1 (en) * | 2015-01-27 | 2016-05-24 | HGST Netherlands B.V. | Peak power efficient data storage drives |
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Also Published As
Publication number | Publication date |
---|---|
CN100552779C (zh) | 2009-10-21 |
EP1672623A1 (en) | 2006-06-21 |
KR100769534B1 (ko) | 2007-10-23 |
CN1928999A (zh) | 2007-03-14 |
EP1703517A2 (en) | 2006-09-20 |
EP1703517A3 (en) | 2007-03-07 |
JPWO2005031720A1 (ja) | 2006-12-07 |
KR20060081721A (ko) | 2006-07-13 |
KR100769625B1 (ko) | 2007-10-23 |
KR20060081718A (ko) | 2006-07-13 |
US20080192599A1 (en) | 2008-08-14 |
US20060233523A1 (en) | 2006-10-19 |
EP1672623A4 (en) | 2007-03-07 |
CN1871642A (zh) | 2006-11-29 |
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