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:
Aug. 02, 2011
Filed:
Dec. 09, 2009
Applicant:
Alvin J. Wang, Fremont, CA (US);
Inventor:
Alvin J. Wang, Fremont, CA (US);
Assignee:
Western Digital Technologies, Inc., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/035 (2006.01);
U.S. Cl.
CPC ...
Abstract
A disk drive is disclosed comprising a head actuated over a disk having a plurality of tracks. A pattern is read from the disk to generate a read signal, and the read signal is sampled to generate read samples. Predictable disturbing samples are generated as a function of the pattern. The predictable disturbing samples are added to the read samples to generate disturbed samples, and a data sequence is detected from the disturbed samples.
Wang, Alvin. (2011). Disk drive margining read channel using predictable disturbance samples generated as a function of a written pattern (U.S. Patent No. 7990648). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7990648
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