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:
Mar. 08, 2011
Filed:
Jul. 31, 2006
Kazuhiko Aoki, Tokyo, JP;
Takeharu Shibatoko, Tokyo, JP;
Kazuhiko Aoki, Tokyo, JP;
Takeharu Shibatoko, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
[PROBLEMS] To provide an optical information reproducing device capable of performing excellent super resolution reproduction at all times without complicating the hardware structure. [MEANS FOR SOLVING PROBLEMS] An optical information reproducing device () irradiates a laser beam to an optical information recording medium () in which effective spot size of the irradiated laser beam changes in accordance with intensity of the laser beam and reproduces information. The optical information reproducing device () includes: an asymmetry detection unit () as asymmetry detection device for obtaining asymmetry from a reproduction signal obtained by reproducing the information; and a laser power adjusting unit () as laser power adjusting device for controlling the laser beam intensity according to the asymmetry obtained by the asymmetry detection unit ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile