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Recording method on rewritable optical disc and optical disc driving apparatus

A technology for rewritable optical discs and recording methods, applied to rewritable optical discs, optical recording/reproduction/erasing methods, optical record carriers, etc., capable of solving problems such as loss of access time and inability to rewrite user data

Inactive Publication Date: 2007-09-26
NEC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is a limitation that the control data recording area must be set as a part on the inner circumference side away from the user data recording area, even within the inner circumference control data recording area.
Therefore, when user data recording and control data recording are performed frequently and alternately, this method has the disadvantage that the loss of access time caused by the longer distance occurs many times
However, there is a disadvantage that user data cannot be freely rewritten to the original rewritable disc

Method used

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  • Recording method on rewritable optical disc and optical disc driving apparatus
  • Recording method on rewritable optical disc and optical disc driving apparatus
  • Recording method on rewritable optical disc and optical disc driving apparatus

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Embodiment Construction

[0041] The method for recording a rewritable optical disc performed by the drive device according to the present invention will be described in detail below with reference to the accompanying drawings.

[0042] FIG. 1 shows the structure of a drive device according to the invention. The driving device includes a spindle 30 , an optical head 31 , a signal detection circuit 34 , an address determination circuit 35 and a control data recording circuit 36 ​​. Here, a part of the rewritable optical disc on which control data is recorded is described, and description of other parts is omitted.

[0043] The spindle 30 rotates and drives the optical disc 1 . The optical head 31 reproduces reproduced data corresponding to data recorded in the optical disc 1 based on reflected light of the emitted laser beam reflected by the rotating optical disc 1 . In addition, the optical head 31 emits a strong laser beam to record data in the optical disc 1 or to erase data.

[0044] The reproduc...

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Abstract

In a recording method on a rewritable optical disc a control data recording zone in which a control data is recorded, is set to a portion of the optical disc which is close to a user data recording area in an inner circumference control data record area. A spiral recordable track of the optical disc is divided into the inner circumference control data record area, the user data recording area, an outer control data record area from an inner circumference side. The control data indicates record states of the inner circumference control data record area, the user data recording area, and the outer control data record area in the optical disc. A new control data is recorded on one of a plurality of record divisions contained in the control data recording zone. A planned record division is set for the control data to be next recorded after the control data is recorded in the one record division.

Description

technical field [0001] The present invention relates to a recording method of a rewritable optical disc, which performs recording and reproduction of data operations by using a fine spot. The invention also relates to an optical disk drive device. Background technique [0002] In the field of optical discs that record and reproduce data using precise light spots, CD-R (Compact Disc Recordable) and DVD-R (Digital Disc Recordable) are widely used as media capable of A data-recording optical disc has a sequence of data pits in a concave-convex shape formed in advance. In addition, there are optical discs called CD-RW (CD Rewritable) and DVD-RW (DVD Rewritable), to which recorded data can be rewritten. In addition, a standard called HD DVD in which a blue light source is used has also been established as a next-generation DVD. [0003] In a rewritable optical disc, a spiral groove track for tracking is formed on an optical disc substrate, and multiple recording layers formed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10G11B20/12G11B20/18G11B27/10G11B7/007
CPCG11B27/24G11B7/1267G11B7/00736G11B7/006G11B20/10G11B20/1803G11B2020/1267G11B2020/1277G11B2220/216G11B2020/122G11B27/329G11B2020/10861G11B20/1217G11B2020/1222G11B2020/1275G11B7/007G11B7/0045G11B20/12G11B20/18
Inventor 山中丰
Owner NEC CORP
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