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:
Nov. 06, 2012
Filed:
Sep. 29, 2006
Shoei Kobayashi, Kanagawa, JP;
Tamotsu Yamagami, Kanagawa, JP;
Yuji Takagi, Osaka, JP;
Makoto Usui, Osaka, JP;
Paulus Gijsbertus Petrus Weijenbergh, Eindhoven, NL;
Bart Van Rompaey, Eindhoven, NL;
Shoei Kobayashi, Kanagawa, JP;
Tamotsu Yamagami, Kanagawa, JP;
Yuji Takagi, Osaka, JP;
Makoto Usui, Osaka, JP;
Paulus Gijsbertus Petrus Weijenbergh, Eindhoven, NL;
Bart Van Rompaey, Eindhoven, NL;
Sony Corporation, Tokyo, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Koninklijke Philips Electronics N.V., Ba Eindhoven, NL;
Abstract
To record specific information to a disk-shaped record medium and reproduce the recorded specific information without any influence on the error correction capability. Copy protection information (CPID) having an error correction code appended thereto, shuffled and otherwise treated is sent as a CPID bit block to an EDC rewrite circuit (). The EDC rewrite circuit () rewrites an error detection code appended to user data in each sector in accordance with bit information in the CPID bit block. Thereafter, the data in each sector is scrambled, and an ECC block including a plurality of sectors is modulated with an error correction code and sync signal appended thereto. The modulated signal is recorded in a reserve area of a lead-in area of the disk-shaped record medium. During reproduction, CPID is restored based on the result of error detection of each sector.