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:
Jan. 20, 2009
Filed:
Feb. 17, 2003
Tatsuya Inokuchi, Tokyo, JP;
Yoriaki Kanada, Kanagawa, JP;
Takao Ihashi, Chiba, JP;
Shunsuke Furukawa, Tokyo, JP;
Takashi Yamanishi, Tokyo, JP;
Yoichiro Sako, Tokyo, JP;
Tatsuya Inokuchi, Tokyo, JP;
Yoriaki Kanada, Kanagawa, JP;
Takao Ihashi, Chiba, JP;
Shunsuke Furukawa, Tokyo, JP;
Takashi Yamanishi, Tokyo, JP;
Yoichiro Sako, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A method for controlling access to data of a disc, comprising the steps of determining whether or not information intrinsic to a writable disc has been detected from data that had been read from the disc; when the determined result represents that information intrinsic to a writable disc has been detected, determining that the disc is a writable disc and at least restricting a regular operation of the disc; and when the determined result represents that information intrinsic to a writable disc has not been detected, determining that the disc is not a writable disc and executing a regular operation of the disc.