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:
May. 26, 2009
Filed:
Sep. 26, 2005
Youichi Ogura, Osaka, JP;
Toshihiko Takahashi, Osaka, JP;
Teruhiko Izumi, Osaka, JP;
Shinichi Konishi, Nara, JP;
Hironori Deguchi, Osaka, JP;
Takamasa Sakai, Osaka, JP;
Youichi Ogura, Osaka, JP;
Toshihiko Takahashi, Osaka, JP;
Teruhiko Izumi, Osaka, JP;
Shinichi Konishi, Nara, JP;
Hironori Deguchi, Osaka, JP;
Takamasa Sakai, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An optical disk device is provided with a first analog-to-digital converter for converting a push-pull signal detected from an optical disc medium into a digital sampling signal according to a sampling clock in the vicinity of a channel frequency. The optical disk device also includes an address polarity information detection circuit for detecting address polarity information from the digital sampling signal, and an address position information detection circuit for detecting address position information from the digital sampling signal while maintaining continuity.