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.
Patent No.:
Date of Patent:
Jun. 23, 2009
Filed:
Feb. 01, 2006
Yutaka Kashihara, Chigasaki, JP;
Atsushi Ishihara, Yokohama, JP;
Yuji Nagai, Sagamihara, JP;
Taku Kato, Kamakura, JP;
Yutaka Yamanaka, Tokyo, JP;
Tatsunori Ide, Tokyo, JP;
Yutaka Kashihara, Chigasaki, JP;
Atsushi Ishihara, Yokohama, JP;
Yuji Nagai, Sagamihara, JP;
Taku Kato, Kamakura, JP;
Yutaka Yamanaka, Tokyo, JP;
Tatsunori Ide, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An optical disk that has a BCA, from which data can be reproduced even if the BCA has defects. The data format of the BCA comprises a plurality of sub-data units and coupling codes, each coupling two adjacent sub-data units. The sub-data units contain the same data. To reproduce the data, the sub-data units are checked for errors. The data recorded in any sub-data unit that has no errors is reproduced and output to a next stage circuit connected to the optical disk drive.