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:
Dec. 31, 2002
Filed:
Nov. 24, 1999
Applicant:
Inventors:
Koji Takano, Ogaki, JP;
Yuji Kajitani, Saitama-ken, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
A circuit for controlling the moving of a pickup (track jump) between tracks of a recording medium, such as a CD-ROM. The circuit includes a first circuit which generate a pulse signal corresponding to changing points of a track jump signal and an off track signal. A second circuit generates a signal for controlling the moving speed or deceleration of the pickup, as it approaches a target track, in accordance with the pulse signal.