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:
Aug. 05, 2008
Filed:
Dec. 28, 2004
Applicants:
Chau-yuan KE, Hsinchu, TW;
Chi-lone Chang, Hsinchu, TW;
Inventors:
Chau-Yuan Ke, Hsinchu, TW;
Chi-Lone Chang, Hsinchu, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An objective lens actuator which mainly using an objective lens holder with a flat form facilitates manufacture and fabrication. Also the objective lens actuator controls the focusing direction, tracking direction and radial tilt direction of the optical pickup head. And, the objective lens actuator not only controls but also drives the optical pickup head.