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:
Nov. 22, 2011
Filed:
Sep. 17, 2007
Tatsuya Tamaki, Tokyo, JP;
Tatsuya Tamaki, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A recording/playback apparatus includes an optical head unit, a laser drive pulse generator, a power setting unit, an evaluation value calculator, and an adjustment controller. The adjustment controller performs control such that recording operations for adjusting laser drive pulses are performed on an optical recording medium by changing the adjustment setting for the laser drive pulses to different adjustment setting conditions under a condition that each of two or more levels of power of the laser light is set to obtain a quality evaluation value for each adjustment setting condition, and determines the adjustment setting for the laser drive pulses on the basis of the obtained quality evaluation value, and sets the determined adjustment setting in the laser drive pulse generator.