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:
Apr. 22, 2008
Filed:
Aug. 12, 2002
Yoichiro Sako, Tokyo, JP;
Takashi Kihara, Chiba, JP;
Toyokazu Noda, Tokyo, JP;
Mamoru Akita, Kanagawa, JP;
Takamasa Yamagishi, Kanagawa, JP;
Yoichiro Sako, Tokyo, JP;
Takashi Kihara, Chiba, JP;
Toyokazu Noda, Tokyo, JP;
Mamoru Akita, Kanagawa, JP;
Takamasa Yamagishi, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
A data recording and/or playing method for recording or playing data to or from an optical disc having a first recording area, where a frame sync signal and the data are recorded, and a second recording area, where a predetermined pattern is preformed, and having address data recorded therein, while rotating the optical disc by a rotation drive unit. The optical disc rotated by the rotation drive unit is scanned by a head unit, and when the head unit is scanning the first recording area, the rotation drive unit is controlled in a first rotation control mode. When the head unit is scanning the second recording area, the rotation drive unit is controlled in a second rotation control mode.