The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 21, 2008

Filed:

Jul. 15, 2004
Applicant:

Takashi Miyamoto, Tokorozawa, JP;

Inventor:

Takashi Miyamoto, Tokorozawa, JP;

Assignee:

TEAC Corporation, Tama-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical disk drive for driving an out-of-specification disk such as a CCCD. When the out-of-specification disk, such as a CCCD (Copy-Controlled CD), is loaded in the optical disk drive, a system controller of the optical disk drive reads TOC data in a first session and TOC data in a second session. When a contradiction exists between the TOC data in the second session and the TOC data in the first session, the system controller deems the disk to be not a within-specification disk but an out-of-specification disk, thereby diminishing the number of retry operations for reading data or a retry time, and reading data by means of generating a synchronization bit SYNC through use of an internal counter.


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