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:
Jul. 15, 2003
Filed:
Dec. 29, 1999
Rod Brittner, Longmont, CO (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A method and apparatus for optimizing seeks for a head on an actuator arm of a disc drive is disclosed. The method involves obtaining a distance to the target track and an optimum time to seek over the obtained distance for each velocity sampling point. The target velocity is then computed from the obtained distance and the optimum time and the actual velocity is subtracted to yield an error. The error is then utilized to provide a current to correct the acceleration of the servomechanism attached to the actuator arm. The apparatus includes a memory for storing acceleration and motor time constants; a microprocessor for calculating the obtained distance, the optimum time, the target velocity, the error, and the current value; a servomechanism that swings the actuator arm; a transducer that produces a position signal; and a power amplifier for receiving the current value and driving the servomechanism.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile