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:
Jun. 06, 2006
Filed:
Aug. 04, 2003
Optical pickup actuator, optical disc drive using the same, and method to increase drive sensitivity
Applicants:
Jeen-gie Kim, Kyungki-do, KR;
Dae-jong Jang, Kyungki-do, KR;
Inventors:
Jeen-gie Kim, Kyungki-do, KR;
Dae-jong Jang, Kyungki-do, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical pickup actuator including a coil, a first magnet, and a second magnet. The coil is installed in a blade holding an objective lens. The first magnet is positioned inside a cavity formed in the center of the coil. The second magnet is installed outside the cavity to face the first magnet. The outer surface of the first magnet facing the coil is polarized into a first pole and inner surface of the first magnet is polarized into a second pole.