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:
Sep. 12, 2006
Filed:
Oct. 09, 2002
Naoto Takeda, Toshima-ku, JP;
Naoto Takeda, Toshima-ku, JP;
TEAC Corporation, Musashino, JP;
Abstract
An optical disk recording apparatus capable of recording data in an optical disk using an optimized recording power is provided. Data formed beforehand in an embossed part of the optical disk are reproduced with a predetermined reproducing power, using an optical pick up unit, and an evaluation index is determined by an evaluation index determining part of a control unit from an envelope of the signal which is produced with the reproducing power. Test data are recorded in a test area of the optical disk by varying the recording power and the test data thus recorded are reproduced with the reproducing power to determine the evaluation index. A control unit sets the evaluation index obtained from the embossed part as a target evaluation index. Desired data are recorded with the recording power corresponding to the target evaluation index.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile