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. 05, 2016
Filed:
Oct. 26, 2012
Western Digital Technologies, Inc., Irvine, CA (US);
James N. Malina, Irvine, CA (US);
Joo Peng Teh, Kuala Lumpur, MY;
Sang Huynh, Yorba Linda, CA (US);
Carl E. Barlow, Lake Forest, CA (US);
Robert M. Fallone, Newport Beach, CA (US);
William B. Boyle, Lake Forest, CA (US);
Glenn Cheng, Kuala Lumpur, MY;
Kuang Hwa Teo, Puchong, MY;
Peng Lee Liang, Subang Jaya, MY;
Daniel D. Reno, Morgan Hill, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
Write pointer management for a disk drive including a disk having a plurality of sectors and a non-volatile memory (NVM) for storing data. Data is sequentially written sector by sector on the disk. The data written in a sector includes a write status indicator indicating that data has been written in the sector. A write pointer is stored on the disk or the NVM as a check-pointed write pointer. The write pointer corresponds to a current sector for writing data on the disk. During a write pointer recovery process, the check-pointed write pointer is retrieved, and at least one write status indicator is scanned in a range of sectors from the sector corresponding to the retrieved check-pointed write pointer and a last sector to identify the current sector for writing data. The write pointer is set to correspond to the identified current sector.