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:
Sep. 10, 2002
Filed:
Aug. 13, 1999
Applicant:
Inventor:
Amir Alon, Sunnyvale, CA (US);
Assignee:
Zen Research (Ireland), Ltd., Dublin, IE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
A multi-track optical disk reader is provided having an optical pickup including multiple reading beams arranged in a pattern, such that each beam is directed towards a track to be read. The optical pickup is at least partly mounted on a swing-arm mechanism that orients the reading beam pattern with respect to the tracks being read. Methods and apparatus are provided for maintaining a desired position of the reading beams with respect to the tracks on an optical disk.