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:
Feb. 07, 2017
Filed:
May. 05, 2010
Kroum S. Stoev, Pleasanton, CA (US);
Davide Guarisco, San Jose, CA (US);
Eric J. Champion, San Jose, CA (US);
William C. Cain, Foothill Ranch, CA (US);
Kroum S. Stoev, Pleasanton, CA (US);
Davide Guarisco, San Jose, CA (US);
Eric J. Champion, San Jose, CA (US);
William C. Cain, Foothill Ranch, CA (US);
WESTERN DIGITAL TECHNOLOGIES, INC., Lake Forest, CA (US);
Abstract
A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of tracks, each track comprising a plurality of data sectors. A circular buffer is defined comprising a plurality of the tracks. During a garbage collection operation, write data is read from previously written valid data sectors corresponding to a tail of the circular buffer and stored in a non-volatile cache. During a flush operation, the write data is flushed from the non-volatile cache to the disk.