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. 12, 2016
Filed:
Mar. 30, 2015
Seagate Technology Llc, Cupertino, CA (US);
Hongjian Fan, Shakopee, MN (US);
Oai Le, Brooklyn Park, MN (US);
Wenzhong Zhu, Apple Valley, MN (US);
Richard Cox, Bloomington, MN (US);
Seagate Technology LLC, Cupertino, CA (US);
Abstract
Apparatus and method for optimizing read channel parameters in a storage device. In some embodiments, a method includes obtaining raw error rate data for different read channel parameter values in each of a plurality of zones of a memory. The raw error rate data for each of the different reach channel parameter values are filtered to provide a sequence of second order polynomial curves with smoothed data points in each of the zones. A second order regression is applied to the smoothed data points in each of the zones to provide a sequence of regression curves. An optimal read channel parameter value for each of the zones is selected using the sequence of regression curves, and the optimal read channel parameter values are used during subsequent read operations to retrieve data stored in the zones.
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