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:
Mar. 16, 2010
Filed:
Oct. 29, 2008
Aswartha Narayana, Foothill Ranch, CA (US);
John Yin Kwong LI, Laguna Niguel, CA (US);
Gary Gaoxiang Zhu, Irvine, CA (US);
Jonathan V. Nguyen, Laguna Niguel, CA (US);
Duc T. Phan, Saratoga, CA (US);
Aswartha Narayana, Foothill Ranch, CA (US);
John Yin Kwong Li, Laguna Niguel, CA (US);
Gary Gaoxiang Zhu, Irvine, CA (US);
Jonathan V. Nguyen, Laguna Niguel, CA (US);
Duc T. Phan, Saratoga, CA (US);
Western Digital Technologies, Inc., Lake Forest, CA (US);
Abstract
A disk drive for implementing a head switch operation is disclosed. The disk drive comprises: an actuator; a first head and a second head attached to the actuator; a disk having a plurality of tracks; and a processor. The processor controls operations in the disk drive including: executing a head switch command from the first head to the second head; determining that a sync-up operation is not successful for the second head at a first track; applying a torque to the actuator to move the second head to a second track; and determining that the sync-up operation is successful.