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:
Aug. 19, 2008
Filed:
Feb. 17, 2006
Shuichi Tasaka, Takarazuka, JP;
Mamoru Shoji, Sakai, JP;
Shuichi Tasaka, Takarazuka, JP;
Mamoru Shoji, Sakai, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A DVD-R recorder according to the invention detects an item of recording speed information (d) from a DVD-R () on which histories of recording speed information, write strategy, and recording power condition are stored. When the decoded item of recording speed information (d) agrees with a set item of recording speed information (d), the recorder detects the write strategy (d) and the recording power condition (d) corresponding to the decoded item of recording speed information (d). A recording-pulse-determination section () converts a recording pattern (d) into a recording pulse (d) according to the write strategy (d). A recording-power-determination section () performs an OPC based on the recording power condition (d). The recording power condition (d) may include information specifying that a recording pulse corresponding to the front edge of a recorded mark has a larger recording power than other recording pulses.