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Disk recording control method and disk recording control device

A control method and a technology for recording data, which are applied in recording/reproducing/deleting methods, optical recording/reproducing/erasing methods, disk-shaped record carriers, etc., and can solve the problem of recording delays and difficult determination of inspection scratches or dust thresholds and other issues to achieve the effect of improving space efficiency

Inactive Publication Date: 2005-11-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, since the inspection process is performed with a laser intensity different from that used at the time of recording processing to be actually performed, it is difficult to determine a threshold value for inspecting scratches or dust
Accordingly, there may be a problem of excessive replacement processing or recording delay due to detection failure of scratches or dust, depending on the method for determining the detection threshold of scratches or dust

Method used

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  • Disk recording control method and disk recording control device
  • Disk recording control method and disk recording control device
  • Disk recording control method and disk recording control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] FIG. 1 is a block diagram showing an embodiment of an optical disc recording control device composed of a disc recording and reproducing device and a higher-level device. The optical disc recording control device in FIG. 1 is constituted by a superordinate device (master device) 200 and an optical disc recording and reproducing device 100 for recording and reproducing the optical disc medium 1 .

[0052] FIG. 2 is a schematic structural diagram of the optical disc medium 1 . A disk-shaped optical disc medium 1 has concentric or spiral tracks 2 , and each track 2 has subdivided sectors 3 . All sectors have absolute addresses called physical sector addresses.

[0053] The optical disc medium 1 also has a control information area 4 and a data recording area 5 on which recording and reproduction of data are performed.

[0054] Defect management information 6 is recorded in a part of the control information area 4 . In the defect management information 6, address replacem...

Embodiment 2

[0116] The optical disk recording control apparatus according to Embodiment 2 is the same in construction as that of Embodiment 1, and its operation is also the same as that of Embodiment 1.

[0117] The flow of defect management recording processing in Embodiment 2 is the same as that described with reference to FIG. 3 in Embodiment 1, and the processing of (1) idle time identification processing (step S1003) and (3) defect management recording processing (step S1006) The processing is the same as that described in Example 1, respectively.

[0118] (2) Regional sanity inspection processing

[0119] The region soundness checking process (step S1005) in Embodiment 2 will be described using FIGS. 7 and 8 .

[0120] FIG. 7 is a flow chart showing command interrupt processing (1400) performed upon receipt of a command from a superior device.

[0121] FIG. 8 is a flow chart showing the procedure of region soundness checking processing (1500) in Embodiment 2. FIG.

[0122] Referr...

Embodiment 3

[0133] The optical disk recording control apparatus according to Embodiment 3 is the same as Embodiment 1 in construction, and its operation is also the same as Embodiment 1.

[0134] The flow of the defect management recording process in Embodiment 3 is the same as that described in Embodiment 1 using the defect management recording process in FIG. The processing (steps S1003, S1005) described in Embodiment 1 or 2 is the same.

[0135] (3) Defect management record processing

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Abstract

Idle time recognizing means 104 recognizes a period of time when no access request is made for an optical disk medium 1, and when the period of time recognized by the idle time recognizing means 104 is equal to or longer than a set period of time, region soundness inspection processing means 103 recognizes a region on the optical disk medium 1 in which normal recording is possible and storing means 109 stores the information recognized by the region soundness inspection processing means 103.

Description

technical field [0001] The present invention relates to a disc recording control method and a disc recording control device for performing data recording by sectors in a track of a disc medium. Background technique [0002] (1) Defect management processing at the time of disc recording [0003] In optical disc medium recording processing, standards for performing defect management processing at the time of recording have become more common so that even when recording operation failure occurs due to defects such as scratches or dust on the optical disc medium itself, recording In the event of degradation in quality, etc., the recording data requested from a higher-level device is protected. [0004] In the defect management process, when an error occurs during the recording operation or the information verification operation after recording fails, a process of allocating a partial area (area after replacement) prepared on the same disc for replacing the recorded area (replac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/12G11B5/09G11B7/004G11B7/0045G11B20/10G11B20/18
CPCG11B2220/2537G11B19/041G11B20/1816
Inventor 番正聪志
Owner PANASONIC CORP