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:
Oct. 18, 2011
Filed:
Mar. 06, 2009
William B. Boyle, Lake Forest, CA (US);
Srinivas Neppalli, Lake Forest, CA (US);
William B. Boyle, Lake Forest, CA (US);
Srinivas Neppalli, Lake Forest, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A disk drive to condense a defect scan log for a disk is disclosed. The disk drive comprises: a disk including a plurality of tracks having a plurality of wedges; a head to perform read operations from the disk including reading defects on the disk; and a processor. The processor controls operations in the disk drive including: determining a plurality of defect zones, wherein each defect zone includes a plurality of physical locations on the disk; detecting defects on the disk; recording the defects into the defect scan log as log entries, wherein the log entries comprise a location parameter related to the defect location on the disk; determining that the number of defects detected in a first defect zone exceed a first threshold; and combining the log entries of the first defect zone into a coalesced log entry.