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:
May. 22, 2012
Filed:
Aug. 04, 2009
Applicant:
Tatsuya Murata, Tokorozawa, JP;
Inventor:
Tatsuya Murata, Tokorozawa, JP;
Assignee:
TEAC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 17/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical disk device which highly precisely positions a disk tray in an ejection position is provided. A controller of an optical disk device drives the disk tray from a storage position toward an exposed position. When a position immediately before the ejection position is detected by a detecting switch, the velocity is reduced, to allow the disk tray to contact a mechanical stopper, for positioning. The controller measures a movement time to the position immediately before the ejection position, and adjusts the drive voltage to increase or decrease the drive voltage for contact with the mechanical stopper according to the measured time.