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:
Apr. 14, 2009
Filed:
Jan. 25, 2006
Applicants:
Yoshiho Gotoh, Osaka, JP;
Mitsuaki Oshima, Kyoto, JP;
Shinichi Tanaka, Kyoto, JP;
Kenji Koishi, Sanda, JP;
Mitsuro Moriya, Ikoma, JP;
Inventors:
Yoshiho Gotoh, Osaka, JP;
Mitsuaki Oshima, Kyoto, JP;
Shinichi Tanaka, Kyoto, JP;
Kenji Koishi, Sanda, JP;
Mitsuro Moriya, Ikoma, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is an optical disk barcode forming method wherein, as information to be barcoded, position information for piracy prevention, which is a form of ID, is coded as a barcode and is recorded by laser trimming on a reflective film in a PCA area of an optical disk. When playing back the thus manufactured optical disk on a reproduction apparatus, the barcode data can be played back using the same optical pickup.