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. 16, 2000
Filed:
Apr. 07, 1998
Applicant:
Inventor:
James M Graba, Longmont, CO (US);
Assignee:
Cirrus Logic, Inc., Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 4428 ; 369 54 ;
Abstract
A track count estimator is provided for an optical storage device operating in either a CD-ROM mode or a DVD mode during a track seek. The track count estimator includes a state estimator to determine current and predicted estimates of the position and velocity of an optical pickup in the optical storage device according to the following equations: