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:
Dec. 27, 2011

Filed:

Apr. 30, 2008
Applicants:

Masaru Kaida, Osaka, JP;

Motoshi Ito, Osaka, JP;

Inventors:

Masaru Kaida, Osaka, JP;

Motoshi Ito, Osaka, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B 20/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical discincludes a defect management area (DMA). A plurality of defective area lists (TDFLs) and structure information (TDDS) are recorded in a temporary defect management area (TDMS) of the defect management area (DMA). The defective area lists (TDFLs) indicate at least one defective area which was detected during an access to the optical disc. The structure information (TDDS) includes a plurality of pieces of position information that indicate positions of the defective area lists (TDFLs). The plurality of pieces of position information, corresponding one-to-one to the defective area lists, are arranged in the structure information (TDDS) in an order in which the defective area lists (TDFLs) corresponding thereto are read out.


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Kaida, Masaru. (2011). Optical disc, recording apparatus, reading apparatus, recording method and reading method (U.S. Patent No. 8085635). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8085635

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