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:
Oct. 21, 2008
Filed:
Jul. 07, 2005
Jen-kuei Hsieh, Hsinchu, TW;
Yi-chuan Pan, Hsinchu, TW;
Jen-Kuei Hsieh, Hsinchu, TW;
Yi-Chuan Pan, Hsinchu, TW;
Lite-On it Corp., Taipei, TW;
Abstract
An open-loop test procedure under high rotating speed is entered to compute a first TE crossing track number. The first TE crossing track number greater than a first threshold indicates an unbalanced disc and results in a low-speed reading procedure. On the other hand, the first TE crossing track number less than a second threshold value that is less than the first threshold value indicates a normal disc and results in a high-speed reading procedure. When the first TE crossing track number lies between the first and second threshold values, another open-loop test procedure under low rotating speed is entered to compute a second TE crossing track number. A low-speed reading procedure is performed when the second TE crossing track number is greater than a third threshold value, and a high-speed reading procedure is performed when the second TE crossing track number is less than the third threshold value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile