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:
Apr. 24, 2018
Filed:
May. 18, 2016
Applicant:
Marvell International Ltd., Hamilton, BM;
Inventors:
Konstantin Kudryavtsev, Sunnyvale, CA (US);
Gregory Burd, San Jose, CA (US);
Mats Oberg, San Jose, CA (US);
Assignee:
Marvell International Ltd., Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 20/18 (2006.01); G11B 20/12 (2006.01); G11B 20/10 (2006.01); G11B 5/012 (2006.01);
U.S. Cl.
CPC ...
G11B 20/1833 (2013.01); G11B 20/10305 (2013.01); G11B 20/10472 (2013.01); G11B 20/1217 (2013.01); G11B 20/18 (2013.01); G11B 5/012 (2013.01); G11B 2020/1232 (2013.01); G11B 2020/1863 (2013.01);
Abstract
Various embodiments provide a Gray code detector that is not designed to look for a specific defect signature, but rather looks for wedges that are in error or close to being in error, as determined through a probabilistic analysis that considers the mean and sigma of a minimum Viterbi Metric Margin (minVMM) distribution of a servo wedge relative to a defined threshold for a Wedge Error Rate (WER).