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:
Feb. 24, 2015
Filed:
Aug. 21, 2012
Mei-man L. Syu, Fremont, CA (US);
Jui-yao Yang, San Jose, CA (US);
Dengtao Zhao, Santa Clara, CA (US);
Mei-Man L. Syu, Fremont, CA (US);
Jui-Yao Yang, San Jose, CA (US);
Dengtao Zhao, Santa Clara, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A solid-state storage retention monitor determines whether user data in a solid-state device is in need of a scrubbing operation. One or more reference blocks may be programmed with a known data pattern, wherein the reference block(s) experiences substantially similar P/E cycling, storage temperature, storage time, and other conditions as the user blocks. The reference blocks may therefore effectively represent data retention properties of the user blocks and provide information regarding whether/when a data refreshing operation is needed.