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Optical disc device and record control method

An optical disc device, optical disc technology, applied in optical recording/reproduction/erasing methods, optical recording systems, disc-shaped record carriers, etc., can solve problems such as recording errors, inability to record stream data in real time, time loss, etc., and achieve elimination Effect of time loss, high speed and reliable data recording

Inactive Publication Date: 2009-04-15
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, there is a problem that although the stream data being recorded is as Figure 8 It continues before and after the error occurrence as shown in (C), but the recording error may occur again due to the cause of the recording error (disc failure, etc.).
However, as described above, there is a problem that since the TDMS is provided in the writing area of ​​the inner periphery of the magnetic disk, when the division of the SRR and the update of the corresponding SRRI are performed according to the occurrence of a recording error, the optical disk device needs to be After the optical pickup moves from the recording track to the writing area to update the TDMS, the optical pickup returns to the recording track and restarts recording. Due to the time loss caused by the reciprocation of the optical pickup, It may not be possible to record streaming data in real time

Method used

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  • Optical disc device and record control method
  • Optical disc device and record control method
  • Optical disc device and record control method

Examples

Experimental program
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Embodiment

[0031] (1) Overall structure of the optical disc device

[0032] exist figure 1 Among them, 1 represents an optical disc device corresponding to a Blu-ray Disc to which the present invention is applied as a whole, and the codec unit 3, data buffer 4, and nonvolatile memory 5 are connected to a control unit 2 that controls the entire device to constitute the unit. CD device.

[0033] When the optical disc device 1 records video on an optical disc 7 composed of a Blu-ray disc, the codec unit 3 encodes video signals supplied from the outside in real time to generate stream data, and temporarily stores the stream data in the data buffer 4 , and provided to the optical pickup 6.

[0034] The optical pickup 6 drives a laser diode (not shown) based on the supplied stream data, and irradiates a light beam to the optical disc 7 to record the stream data. At this time, the control unit 2 controls a slide drive mechanism (not shown) so that the laser light emitted from the optical pi...

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PUM

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Abstract

Data can be surely recorded at a high speed in an optical disc even when a recording error is generated. When a data recording error in an optical disc is detected, data recording is restarted by skipping a prescribed range subsequent to an address where the recording error is generated, the recording area where the data recoding is restarted is separated from a recording area including the address where the recording error is generated. When data recording in the optical disc is completed, information indicating that the recording area is divided is recorded in a management area in the optical disc.

Description

technical field [0001] The present invention relates to an optical disc device and a recording control method, which are suitable for use when recording data on an optical disc. Background technique [0002] In the past, rewritable (rewritable / -RW type) and recordable (write-once (write-once) / -R type) optical discs that allow users to freely record data have been widely used. disc drive. [0003] In addition, for the purpose of further increasing the recording capacity, a blue laser (wavelength 405nm) with a shorter wavelength than conventional CD (Compact Disc: Compact Disc) and DVD (Digital Versatile Disc: Digital Video Disc) has been developed. ) (Blu-ray Disc) (registered trademark of Sony Corporation), which also includes rewritable BD-RE and recordable BD-R (for example, refer to patent application 2006-024287) . [0004] In addition, in recent years, in video recording devices such as stationary video recorders and video handy cameras, it has become common to recor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/12G11B7/0045G11B20/18
CPCG11B20/18G11B2020/1873G11B27/11G11B2220/2537G11B2020/10972G11B20/1883G11B2220/218G11B2220/20G11B2020/1896G11B2220/2541G11B7/0045G11B7/007G11B20/10
Inventor 赖本贤治加里本誉司四方英人古川睦伊藤直也大石力竹村真一伊藤智行久野启山本正晃
Owner SONY CORP
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