Patent application number | Description | Published |
20080225662 | INFORMATION RECORDING MEDIUM, RECORDING APPARATUS, REPRODUCTION APPARATUS, RECORDING METHOD AND REPRODUCTION METHOD - An information recording medium is provided that includes a data area for recording user data and a defect management area for recording a defect list for managing N number of defect areas existing in the data area, where N is an integer satisfying N≧0. The defect list includes two or more blocks, and further includes a header located at a fixed position in the defect list and N number of defect entries, located subsequent to the header, including position information on the respective positions of the N number of defect areas. An anchor is located subsequent to the defect entries, and the header includes first update times information representing the number of times that the defect list has been updated. The anchor includes second update times information representing the number of times that the defect list has been updated. | 09-18-2008 |
20080239907 | WRITE-ONCE READ-MANY INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION REPRODUCTION METHOD, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCTION APPARATUS - A write-once read-many information recording medium is provided, which is capable of easily searching for a latest DDS and a latest defect list. At least one disc management working area is sequentially allocated in a predetermined direction on the write-once read-many information recording medium of the present invention. The latest defect list and the latest DDS are provided in a recorded disc management working area neighboring a border between the recorded disc management working area and an unrecorded disc management working area, where the latest defect list precedes the latest DDS in the predetermined direction. | 10-02-2008 |
20080239912 | WRITE-ONCE READ-MANY INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION REPRODUCTION METHOD, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCTION APPARATUS - A write-once read-many information recording medium is provided, which is capable of easily searching for a latest DDS and a latest defect list. At least one disc management working area is sequentially allocated in a predetermined direction on the write-once read-many information recording medium of the present invention. The latest defect list and the latest DDS are provided in a recorded disc management working area neighboring a border between the recorded disc management working area and an unrecorded disc management working area, where the latest defect list precedes the latest DDS in the predetermined direction. | 10-02-2008 |
20080298206 | WRITE-ONCE READ-MANY INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION REPRODUCTION METHOD, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCTION APPARATUS - A write-once read-many information recording medium is provided, which is capable of easily searching for a latest DDS and a latest defect list. At least one disc management working area is sequentially allocated in a predetermined direction on the write-once read-many information recording medium of the present invention. The latest defect list and the latest DDS are provided in a recorded disc management working area neighboring a border between the recorded disc management working area and an unrecorded disc management working area, where the latest defect list precedes the latest DDS in the predetermined direction. | 12-04-2008 |
20100046336 | INFORMATION RECORDING MEDIUM, RECORDING APPARATUS, REPRODUCTION APPARATUS, RECORDING METHOD AND REPRODUCTION METHOD - An information recording medium is provided that includes a data area for recording user data and a defect management area for recording a defect list for managing N number of defect areas existing in the data area, where N is an integer satisfying N≧0. The defect list includes two or more blocks, and further includes a header located at a fixed position in the defect list and N number of defect entries, located subsequent to the header, including position information on the respective positions of the N number of defect areas. An anchor is located subsequent to the defect entries, and the header includes first update times information representing the number of times that the defect list has been updated. The anchor includes second update times information representing the number of times that the defect list has been updated. | 02-25-2010 |
20100103793 | MULTILAYER OPTICAL INFORMATION RECORDING MEDIUM, METHOD FOR RECORDING INFORMATION IN THE MULTILAYER OPTICAL INFORMATION RECORDING MEDIUM, RECORDING/REPRODUCING APPARATUS - The present invention provides a novel physical structure for a multilayer optical information recording medium including a plurality of information recording layers, and a recording method and a recording/reproduction apparatus for such a recording medium using the same. The multilayer optical information recording medium according to the present invention includes a test recording area for performing test recording for data recording and/or reproduction conditions in at least one of an inner zone and an outer zone. The test recording area is categorized as one of at least two categories of test recording areas (OPC-A area and OPC-B area). In the OPC-B area, an upper limit value is set on a recording power for the test recording. | 04-29-2010 |
20100110850 | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD AND INFORMATION RECORDING APPARATUS - OPC areas are used for adjusting recording parameters (power and strategy). In an optical disc including two recording layers, the recording power for one recording layer is likely to be influenced by a transmittance variance or the like provided by the recording state of the other recording layer (either already recorded or unrecorded). In addition, recording is performed while changing the power. For these reasons, the OPC areas are located so as not to be at the same radial positions among the recording layers. However, as the number of recording layers is increased, the area size for securing the OPC areas is increased, which may undesirably lead to an increase of the lead-in zone or the lead-out zone (decrease of the user data zone) and a decrease of the OPC area size in each recording layer (decrease of the number of times of usage by the user). According to the present invention, an area for power calibration in which recording is performed while changing the power and so which is significantly influenced by the transmittance balance, is separated from an area for strategy calibration or the like in which recording is performed at a fixed power suitable to the disc and so which is unlikely to be influenced by the transmittance balance. Only power calibration areas are located at different radial positions among different recording layers so as not be influenced by the recording state of the other recording layers, and the strategy calibration areas are located so as to include the same radial position among different recording layers. | 05-06-2010 |
20100142346 | INFORMATION RECORDING MEDIUM, RECORDING METHOD AND REPRODUCTION METHOD - On a recording medium, data is recorded on at least one of a plurality of recording layers by laser light incident on a surface of the recording medium. The plurality of recording layers include a first recording layer, and second through N-th recording layers (N is an integer of 3 or greater) which are sequentially located in a direction from the first recording layer toward the surface on which the laser is incident. The plurality of recording layers each have a first calibration area and a second calibration area located outer to the first calibration area. The first calibration area located in each of the first through N-th recording layers is located at a different radial position from a radial position of the first calibration area in each of the other recording layers; and the second calibration area located in each of the first through N-th recording layers is located at the same radial position as a radial position of the second calibration area in each of the other recording layers. | 06-10-2010 |
20100172226 | INFORMATION RECORDING MEDIUM, REPRODUCTION APPARATUS AND RECORDING APPARATUS - An information recording medium according to the present invention includes three or more information recording layers. Each of the plurality of information recording layers includes a test recording area usable for adjusting a recording condition. One of the plurality of information recording layers includes a reproduction-only management data area in which management data usable for managing the information recording medium is pre-recorded. Each of the other two or more information recording layers among the plurality of information recording layers includes a test recording area at a radial position partially overlapping the radial position of the management data area. | 07-08-2010 |
20100232276 | DEFECT MANAGING METHOD AND DEFECT MANAGING DEVICE - To enable sequential recording to be performed to alternate destinations and improve in access performance, by controlling to estimate sequential defective areas such as bubbles based on prescribed conditions, allocate blocks of a spare area ( | 09-16-2010 |
20100246364 | WRITE-ONCE INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS, INFORMATION RECORDING METHOD, INFORMATION REPRODUCING APPARATUS AND INFORMATION REPRODUCING METHOD - According to the present invention, multiple space bitmaps (SBMs # | 09-30-2010 |
20100315916 | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION RECORDING APPARATUS, INFORMATION REPRODUCING METHOD AND INFORMATION REPRODUCING APPARATUS - If a defective cluster in a spare area is managed with a defect entry, the size of a DFL will increase as the size of the spare area increases with an increase in the number of recording layers stacked in a disc. An information recording medium according to the present invention has pointer information indicating the location of the next available cluster in each spare area, and restricts the direction in which the spare area is used. Also, a defect entry indicating a defective cluster in the spare area is registered with the DFL. Thus, even if the size of the spare area | 12-16-2010 |
20100329098 | WRITE-ONCE INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS, INFORMATION RECORDING METHOD, INFORMATION REPRODUCING APPARATUS AND INFORMATION REPRODUCING METHOD - According to the present invention, multiple space bitmaps (SBMs # | 12-30-2010 |
20100332926 | APPARATUS FOR FORMATTING INFORMATION STORAGE MEDIUM - An apparatus according to the present invention is designed to perform formatting processing on an information storage medium. The storage medium has a data storage area including a user data area and a spare area. The user data area is provided to write user data on, while the spare area includes a replacement block to be used as a replacement for a block that has been detected as a defective block. The replacement block stores instruction information that instructs to read data from the defective block when data is read from the replacement block. The apparatus includes a control section for controlling the formatting processing. In performing the formatting processing, the control section updates information stored in the replacement block such that when data is read from the replacement block, the data is not read from the defective block. | 12-30-2010 |
20110026391 | WRITE-ONCE INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS, INFORMATION RECORDING METHOD, INFORMATION REPRODUCING APPARATUS AND INFORMATION REPRODUCING METHOD - According to the present invention, multiple space bitmaps (SBMs #0 and #1 | 02-03-2011 |
20110096643 | INFORMATION RECORDING MEDIUM, RECORDING DEVICE AND REPRODUCING DEVICE - An information recording medium according to the present invention includes three or more information recording layers. Each of the plurality of information recording layers includes a test recording area usable for adjusting a recording condition. One of the plurality of information recording layers includes a reproduction-only management data area in which management data usable for managing the information recording medium is pre-recorded. One information recording layer includes a recordable management data area in which management data usable for managing the information recording medium is newly writable. Each of the other two or more information recording layers among the plurality of information recording layers includes a test recording area at a radial position overlapping the radial position of a part of the reproduction-only management data area. In the one recording layer including the recordable management data area, the recordable management data area is provided at two positions, i.e., one on the inner side and the other on the outer side to the test recording area. | 04-28-2011 |
20110110214 | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION RECORDING APPARATUS, INFORMATION REPRODUCING METHOD AND INFORMATION REPRODUCING APPARATUS - If a defective cluster in a spare area is managed with a defect entry, the size of a DFL will increase as the size of the spare area increases with an increase in the number of recording layers stacked in a disc. An information recording medium according to the present invention has pointer information indicating the location of the next available cluster in each spare area, and restricts the direction in which the spare area is used. Also, a defect entry indicating a defective cluster in the spare area is registered with the DFL. Thus, even if the size of the spare area | 05-12-2011 |
20110122748 | WRITE-ONCE READ-MANY INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION REPRODUCTION METHOD, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCTION APPARATUS - A write-once read-many information recording medium is provided, which is capable of easily searching for a latest DDS and a latest defect list. At least one disc management working area is sequentially allocated in a predetermined direction on the write-once read-many information recording medium of the present invention. The latest defect list and the latest DDS are provided in a recorded disc management working area neighboring a border between the recorded disc management working area and an unrecorded disc management working area, where the latest defect list precedes the latest DDS in the predetermined direction. | 05-26-2011 |
20110170382 | INFORMATION RECORDING MEDIUM, RECORDING METHOD, AND REPRODUCING METHOD - Minimized is the influence which is exerted by recording calibration (test recording) such as power calibration, strategy calibration or the like, performed in an area for recording calibration (recording calibration area or test area) provided in each of a plurality of recording layers, on recording calibration performed in the other recording layers. | 07-14-2011 |
20110188369 | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION RECORDING APPARATUS, INFORMATION REPRODUCING METHOD AND INFORMATION REPRODUCING APPARATUS - If a defective cluster in a spare area is managed with a defect entry, the size of a DFL will increase as the size of the spare area increases with an increase in the number of recording layers stacked in a disc. An information recording medium according to the present invention has pointer information indicating the location of the next available cluster in each spare area, and restricts the direction in which the spare area is used. Also, a defect entry indicating a defective cluster in the spare area is registered with the DFL. Thus, even if the size of the spare area | 08-04-2011 |
20110219393 | WRITE-ONCE INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION RECORDING APPARATUS, INFORMATION REPRODUCING METHOD, INFORMATION REPRODUCING APPARATUS AND MANUFACTURING METHOD OF THE INFORMATION RECORDING MEDIUM - In an information recording medium in which storage capacity per recording layer has increased so much that the size of an SBM varies with those of spare areas, there is mutual dependence between a DDS and an SBM and it is difficult to retrieve disc management information as intended. In an information recording medium according to the present invention, if the largest space is allocated to an user data area, the number of blocks to store a space bitmap is N | 09-08-2011 |
20120087218 | WRITE-ONCE READ-MANY INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION REPRODUCTION METHOD, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCTION APPARATUS - A write-once read-many information recording medium is provided, which is capable of easily searching for a latest DDS and a latest defect list. At least one disc management working area is sequentially allocated in a predetermined direction on the write-once read-many information recording medium of the present invention. The latest defect list and the latest DDS are provided in a recorded disc management working area neighboring a border between the recorded disc management working area and an unrecorded disc management working area, where the latest defect list precedes the latest DDS in the predetermined direction. | 04-12-2012 |
20120159065 | WRITE-ONCE INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, INFORMATION RECORDING DEVICE, INFORMATION REPRODUCTION METHOD, INFORMATION REPRODUCTION DEVICE AND METHOD FOR MANUFACTURING INFORMATION RECORDING MEDIUM - In an information recording medium in which storage capacity per recording layer has increased so much that the size of an SBM varies with those of spare areas, there is mutual dependence between a DDS and an SBM and it is difficult to retrieve disc management information as intended. In an information recording medium according to the present invention, if the largest space is allocated to an user data area, the number of blocks to store a space bitmap is N | 06-21-2012 |
20130188464 | RECORD/ACCESS DEVICE AND RECORD/ACCESS METHOD - A recording/reproduction device according to the present invention includes a recording/reproduction section for recording or reproducing data on or from an information recording medium; a verification section for checking whether or not the data recorded on the information recording medium can be reproduced normally; a management information recording section for recording, on the information recording medium by use of the recording/reproduction section, only management information which needs to be changed among a plurality of types of management information for managing the data recorded on the information recording medium; and a management information checking section for checking, by use of the verification section, whether or not latest management information including management information which does not need to be changed and is to be reused can be reproduced normally. | 07-25-2013 |
20130212428 | INFORMATION STORAGE MEDIUM LIBRARY ARRAY APPARATUS, INFORMATION RECORDING METHOD AND INFORMATION RECORDING PROGRAM - Each of a plurality of information storage media and an alternative information storage medium record data continuously on tracks, each of a plurality of recording and reproduction devices record data on the information storage medium that is a recording object, of the plurality of information storage media, and the information storage media installed respectively in the plurality of recording and reproduction devices constitute a disk array, and the array controller detects the occurrence of a fault in which the information storage medium installed in any of the plurality of recording and reproduction devices has become unable to perform recording, and the backup recording and reproduction device alternatively records to the alternative information storage medium data that ought to be recorded to a faulty information storage medium where the occurrence of a fault has been detected by the array controller. | 08-15-2013 |
20140075116 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION STORAGE MEDIUM - Recording failure area information includes information indicating an optical disk having a recording failure area in which data is missing, and indicating a position of the recording failure area in the optical disk, out of the optical disks constituting a disk array. A controller ( | 03-13-2014 |
20140086032 | INFORMATION RECORDING AND REPRODUCING DEVICE AND INFORMATION RECORDING AND REPRODUCING METHOD - An information recording and reproducing device has a recording section, a reproducing section, and a deterioration detection processor which detects deterioration of a signal quality of information recorded in a recording medium. The deterioration detection processor reproduces information recorded in a first area of the medium, using the reproducing section, to acquire first comparison information representing a signal quality, records information, using the recording section, in a second area of the medium different from the first area after the information recorded in the first area is recorded in the first area, and reproduces, using the reproducing section, the information recorded in the second area to acquire second comparison information representing a signal quality, and determines that the signal quality of the information recorded in the medium is deteriorated, in a case where the second comparison information represents a signal quality higher than that represented by the first comparison information. | 03-27-2014 |
20140160908 | OPTICAL DISK RECORDING MEDIUM, OPTICAL DISK DEVICE, AND RECORDING METHOD - An integral multiple of a period of wobbling in a portion other than address information of groove tracks ( | 06-12-2014 |
20140198629 | STORAGE DEVICE AND STORAGE METHOD - A storage device | 07-17-2014 |