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:
Jun. 01, 2010
Filed:
Feb. 06, 2009
Chang-ik Kang, Santa Clara, CA (US);
Chang-Ik Kang, Santa Clara, CA (US);
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A hard disk drive with a circuit that provides a control signal to a voice coil motor to move a head across a disk of the drive. The drive includes a flex circuit that applies a bias force onto an actuator arm coupled to the head. The circuit includes a state estimator that provides a plurality of estimation errors and a bias estimator that creates a bias estimate. The bias estimate includes an average of the estimation errors and is a function of the flex circuit bias force. The bias estimate is used to create the control signal provided to the voice coil motor. The bias estimate reduces seek time during a seek routine.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile