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. 01, 2004
Filed:
Apr. 20, 2001
Applicant:
Inventor:
Hsiang-Yi Fu, Taipei, TW;
Assignee:
Lite-On It Corporation, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
An identification method for level and upright assembling of optical disk driver is proposed. The laser lens of optical disk driver has different displacement for different arrangement of the optical disk driver. The added signal Sub-beam add takes different time to reach peak value for different arrangement of the optical disk driver. The assembling orientation of the optical disk driver can be discriminated and the auto balance system will have better performance. The speed profile can be correctly designed; and the vibration and the noise of the optical disk driver due to imbalance in high-speed rotation can be prevented.