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:
Apr. 19, 2005
Filed:
Mar. 04, 2002
Shuangquan Min, Singapore, SG;
Kiankeong Ooi, Singapore, SG;
Weisung Lee, Singapore, SG;
Wingkong Chiang, Singapore, SG;
ShuangQuan Min, Singapore, SG;
KianKeong Ooi, Singapore, SG;
WeiSung Lee, Singapore, SG;
WingKong Chiang, Singapore, SG;
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
Track closure errors written into servo sectors of an information track of a disc of a disc drive are resolved from a position control signal generated by a servo control circuit of a data storage device by steps comprising: determining a value for the track closure error from a position error signal, establishing a track closure profile based on the value of the track closure error, and injecting the track profile into the servo control circuit as a feed forward compensation input for the position error signal to resolve the track closure error from the position control signal.