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:
May. 31, 2011
Filed:
Jul. 23, 2007
Sang-hoon Chu, Yongin-si, KR;
Cheol-hoon Park, Yongin-si, KR;
Sang-hoon Chu, Yongin-si, KR;
Cheol-hoon Park, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
Provided is an apparatus and method of adjusting reference clock frequency in a disk drive. The reference clock frequency adjustment method includes; measuring each servo sector detection time interval, generating an error signal by subtracting initially set reference time interval information between servo sectors from the measured servo sector detection time interval information, and adjusting the reference clock frequency using the error signal such that a constant number of reference clock pulses are generated in each servo sector detection time interval regardless of variation in each servo sector detection time interval.