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:
Aug. 18, 2009
Filed:
Jan. 10, 2006
Dong Jun Lee, Sunnyvale, CA (US);
Young-hoon Kim, Cupertino, CA (US);
Vinod Sharma, Los Gatos, CA (US);
Hyung Jai Lee, Cupertino, CA (US);
Dong Jun Lee, Sunnyvale, CA (US);
Young-Hoon Kim, Cupertino, CA (US);
Vinod Sharma, Los Gatos, CA (US);
Hyung Jai Lee, Cupertino, CA (US);
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
Method of estimating the stroke sensitivity of micro-actuator coupled with slider and its read-write head. Micro-actuator stimulus signal used to drive micro-actuator, inducing noise into lateral positioning of read-write head near track by voice coil motor to create PES. Lateral position noise derived from Position Error Signal. Stroke sensitivity estimated from lateral position noise and micro-actuator stimulus signal. Apparatus supporting method estimating stroke sensitivity: servo controller, embedded circuit including servo-controller, and hard disk drive may include servo-controller and/or embedded circuit. Method making servo-controller, embedded circuit, and/or hard disk drive. Servo-controller, embedded circuit, and hard disk drive are products of these processes.