Title:
光ディスク及び光ディスク装置
Document Type and Number:
Japanese Patent JP4069216
Kind Code:
B2
Abstract:
An optical disk apparatus for suppressing a DSV and performing R-OPC. An encoding/decoding circuit inserts a synchronization information item to a head of a synchronous frame once when data are recorded on an optical disk. First, the encoding/decoding circuit inserts synchronization information as a mark or a space on the basis of a DSV. When the polarity of the first synchronization information item is a mark, the polarity of a next synchronization information item is also set on the basis of the DSV. When the polarity of the first synchronization information is a space, the polarity of the next synchronization information is set to a mark. R-OPC is performed at a timing when the polarity of the synchronization information is a mark.
Inventors:
Makoto Mashita
Application Number:
JP2003380232A
Publication Date:
April 02, 2008
Filing Date:
November 10, 2003
Export Citation:
Assignee:
TEAC Corporation
International Classes:
G11B20/14; G11B5/09; G11B7/00; G11B7/004; G11B7/0045; G11B7/007; G11B7/013; G11B7/125; G11B7/1263; G11B20/10; G11B27/30; H03M5/14
Domestic Patent References:
| JP9246979A | ||||
| JP2003091819A | ||||
| JP2001266348A |
Attorney, Agent or Firm:
Kenji Yoshida
Jun Ishida
Jun Ishida