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Optical information recording medium and optical information recording medium reproducing apparatus

A technology of recording medium and reproducing device, applied in optical record carrier, recording signal processing, recording/reproducing by optical method, etc., can solve problems such as difficulty in swinging

Inactive Publication Date: 2013-12-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the wobble is information of different groove tracks, and in a state where the wobble is out of phase, it is difficult to reproduce the wobble

Method used

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  • Optical information recording medium and optical information recording medium reproducing apparatus
  • Optical information recording medium and optical information recording medium reproducing apparatus
  • Optical information recording medium and optical information recording medium reproducing apparatus

Examples

Experimental program
Comparison scheme
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Embodiment approach

[0026] 3. Modification example

[0027] 1. BD format

[0028] In the present disclosure, the format of address information and the like follows the BD (Blu-ray Disc) (registered trademark) format. According to this, a larger part of the technology of BD, which is a high-density optical disc and is practically applied, can be used. Therefore, before entering the description of the present disclosure, a description will be given about address information in the BD format.

[0029] Such as figure 1 As shown in , the main data to be written is a series of RUBs (Recording Unit Blocks) (RUB n+0 , RUB n+1 , RUB n+2 , RUB n+3 ,...). The RUB is a unit for recording main data (recording and reproduction data), and the predetermined length is set to 64 kbytes, for example. 3 ADIP (address of pregroove) words ADIP0, ADIP1, and ADIP2 are assigned to each 1 RUB. ADIP0, ADIP1, and ADIP2 mutually have the same address information.

[0030] In addition, 83 (unit numbers, 0 to 82) ADI...

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Abstract

An optical information recording medium of a CAV or a zone CAV, in which a groove wobbling continuously is formed in advance so as to record information to a groove and a land abutting the groove, the groove alternately has a first wobble position in which a wobble fundamental wave form has been modulated by groove address information, and a second wobble position of the wobble fundamental wave form, and in grooves of both sides by which the land is interposed, the first wobble position and the second wobble position are different from each other in position.

Description

technical field [0001] For example, the present disclosure relates to an optical information recording medium, and an optical information recording medium reproducing apparatus applicable to a recordable optical disc. Background technique [0002] In the past, optical discs in which information is recorded or reproduced by using laser beams have been practically used. As for the types of optical disks, there are read-only type, write-once type, and rewritable type. In the write-once type and the write-once type, it is necessary to record address information indicating the position of the optical disc in advance in order to record the information. [0003] There are two methods for recording address information. One of them is a method of recording address information using pre-format pits. Another method is a method of modulating a signal forming a groove called wobble-to-groove by address information. Recording the pre-format pits has the problems of a reduction in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/007
CPCG11B7/00718G11B7/24082G11B20/1217G11B27/3027G11B2007/00754G11B27/24
Inventor 齐藤公博堀笼俊宏
Owner SONY CORP
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