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:
Mar. 17, 2009
Filed:
Jun. 15, 2005
Shih-chang Cheu, Taipei, TW;
Chih-ming Lai, Taipei, TW;
Po-chen Huang, Taipei, TW;
Chih-chung Chiao, Taipei, TW;
Shih-Chang Cheu, Taipei, TW;
Chih-Ming Lai, Taipei, TW;
Po-Chen Huang, Taipei, TW;
Chih-Chung Chiao, Taipei, TW;
Lite-On It Corporation, Taipei, TW;
Abstract
An intelligent layer jump method applied when an optical disc drive accesses a disc. The disc has a central reference point, at least a first recoding layer and a second recoding layer. The first recoding layer has a plurality of first tracks, while the second recoding layer has a plurality of second tracks. Firstly, a laser beam of the optical disc drive is focused on the first recoding layer to form a focal point and obtain an original position. Then, the relative position between an original position and a target position positioned on the second recoding layer are compared to determine a layer jump and track seeking path of the focal point. Lastly, the focal point is shifted from the original position to the target position according to the predetermined layer jump and track seeking path.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile