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. 18, 2010
Filed:
Apr. 12, 2005
Kenji Kondo, Kadoma, JP;
Katsuya Watanabe, Nara, JP;
Shin-ichi Yamada, Katano, JP;
Kenji Fujiune, Hirakata, JP;
Kenji Kondo, Kadoma, JP;
Katsuya Watanabe, Nara, JP;
Shin-ichi Yamada, Katano, JP;
Kenji Fujiune, Hirakata, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An optical disk device is disclosed that includes loop gain adjustment means for finding the first tracking loop gain of a first region, and loop gain estimation means for estimating the second loop gain of a second region on the basis of the loop gain of the first region. Accordingly, it is possible to set the optimal tracking control loop gain for all regions. As a side benefit, good tracking control stability can be ensured regardless of the region, which improves the reliability of reproduction and recording.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile