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:
Sep. 23, 2014
Filed:
Sep. 12, 2012
Chin Phan Kuan, Seri Kembangan, MY;
Noppol Vangnayunut, Bangkok, TH;
Nikki Poh Ling Khew, Klang, MY;
Peng Lee Liang, Subang Jaya, MY;
Chin Phan Kuan, Seri Kembangan, MY;
Noppol Vangnayunut, Bangkok, TH;
Nikki Poh Ling Khew, Klang, MY;
Peng Lee Liang, Subang Jaya, MY;
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A disk drive including a disk surface including a first backup location, and a second backup location, a head actuated radially over the disk surface to write data to the disk surface, a memory configured to store a signature, and control circuitry coupled to the head. The control circuitry can be configured to receive a command to write data to the disk surface, insert the signature into the data, write the data to the disk surface, and alternately writing a spare copy of the data to the first backup location and to the second backup location based on a value of the signature.