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. 23, 2004
Filed:
Feb. 06, 2002
Akira Mashimo, Saitama-ken, JP;
Yasuhide Ishimori, Saitama-ken, JP;
TEAC Corporation, Tokyo, JP;
Abstract
An optical recording apparatus comprises a means for calculating an optimum recording power, capable of varying a recording power to perform a recording process on a test recording area of the erasable optical disc, and calculating an optimum recording power according to signals obtained by reproducing the test recording area; and an a means for calculating an optimum erasing power from the optimum recording power and a coefficient corresponding to the optimum recording power. The optimum recording power and the optimum erasing power are used for recording the erasable optical disc. Thereby, even though the dispersion of the recording power becomes large, the erasing power is not greater than a certain range; therefore, the total of the recording power and the erasing power can be restrained and the degradation of the durability, that the optical disc can be repeatedly recorded, can be suppressed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile