Optical disk recording apparatus and optical disk recording...

Details Optical disk recording apparatus and optical disk recording... Optical disk recording apparatus and optical disk recording...

Filed on

2008-03-25

Date issued

2008-03-25

Examiner

Dinh, Tan (Department: 2627)

Patent Class

Dynamic information storage or retrieval

SubClass

Control of storage or retrieval operation by a control...

SubSubClass

Control of information signal processing channel

Other Related Categories

C369S030250, C369S059190

Type

Reexamination Certificate

Status

active

Patent number

10641904

Description

ABSTRACT:
For protecting the recording from shifting in the position, by conducting sync detection, correctly, from land pre pits, in an optical type recording disc, even if sync pattern errors, in more detail, synchronization is conducted on a recording circuit, with certainty, even if an even sync pattern erroneously changes into an odd sync pattern. When the even sync pattern is detected from an odd sync pattern detection window, a sync lock flag is turned into a condition of unlock. When the sync lock flag continues a lock condition for 16 sectors, the synchronization is carried out on a detection cycle counter and a recording cycle counter.

REFERENCES:
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patent: 6879771 (2005-04-01), Yoshida et al.
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patent: 6963521 (2005-11-01), Hayashi
patent: 7050373 (2006-05-01), Tonami et al.
patent: 7110333 (2006-09-01), Oh
patent: 10-340536 (1998-12-01), None
patent: 2000-195177 (2000-07-01), None
patent: 2000-293855 (2000-10-01), None
patent: 2002-298365 (2002-10-01), None

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