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:
Jan. 02, 2007
Filed:
Oct. 07, 2005
Tung Nguyen, San Jose, CA (US);
Sang Hoon Chu, Santa Clara, CA (US);
Jun Seok Shim, Cupertino, CA (US);
Kang Seok Lee, Cupertino, CA (US);
Soo IL Choi, Santa Clara, CA (US);
Seong Hwan Yu, San Jose, CA (US);
Tung Nguyen, San Jose, CA (US);
Sang Hoon Chu, Santa Clara, CA (US);
Jun Seok Shim, Cupertino, CA (US);
Kang Seok Lee, Cupertino, CA (US);
Soo Il Choi, Santa Clara, CA (US);
Seong Hwan Yu, San Jose, CA (US);
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
The present invention is a method and apparatus for positioning a read/write head in a hard disk drive. The method comprises providing a disk having a at least one side with a plurality of tracks, where each of the tracks has a servo field with servo bits. The servo bits are read to provide a position signal for positioning a read/write head. The method determines a difference in position between an initial and a subsequent position of the read/write head on a track, where the subsequent location occurs after the read/write head has moved one revolution from the initial position on the track. The initial and subsequent positions are offset laterally. The method generates a compensation signal based on the initial position, the subsequent position and the difference. The position signal and the compensation signal are combined to provide a compensated position signal for positioning the read/write head. Various embodiments are described.