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. 12, 2017
Filed:
Mar. 11, 2016
Applicant:
Hgst Netherlands B.v., Amsterdam, NL;
Inventor:
Aldo G. Cometti, San Diego, CA (US);
Assignee:
Western Digital Technologies, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G11C 11/56 (2006.01); G11C 16/26 (2006.01); G06F 11/07 (2006.01);
U.S. Cl.
CPC ...
G11C 11/5642 (2013.01); G06F 11/076 (2013.01); G06F 11/079 (2013.01); G06F 11/0727 (2013.01); G06F 11/0793 (2013.01); G11C 16/26 (2013.01);
Abstract
Reading requested data from flash memory using a first read level voltage. A number of first bit-value errors and a number of second bit-value errors is determined from the read requested data. An error ratio of the number of first bit-value errors and the number of second bit-value errors is compared to an error-ratio range. The first level voltage is adjusted based on the comparison of the error ratio to the error-ratio range.