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:
Mar. 08, 2011

Filed:

Sep. 14, 2010
Applicants:

Kohei Nakata, Nara, JP;

Naohiro Kimura, Kyoto, JP;

Harumitsu Miyashita, Nara, JP;

Hiroshi Ueda, Nara, JP;

Yoshikazu Yamamoto, Osaka, JP;

Inventors:

Kohei Nakata, Nara, JP;

Naohiro Kimura, Kyoto, JP;

Harumitsu Miyashita, Nara, JP;

Hiroshi Ueda, Nara, JP;

Yoshikazu Yamamoto, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/085 (2006.01); G11B 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

An address format for appropriately controlling the recording linear density and the number of information recording layers is provided in order to increase the recording capacity of an information recording medium such as an optical disc or the like in a range in which a necessary S/N ratio can be guaranteed. An optical disc includes an information recording layer having a concentric or spiral track, and has a format for describing a track address, which is pre-recorded on the track or is to be added to data that is to be recorded on the information recording layer. The format includes layer information regarding the information recording layer and address information regarding the track address.


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