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:
Oct. 20, 2015
Filed:
Nov. 14, 2013
Sandisk Technologies Inc., Plano, TX (US);
SANDISK TECHNOLOGIES INC., Plano, TX (US);
Abstract
A data storage device includes a non-volatile memory and a controller. A method includes writing an indication of a first error rate of a first set of bits to the non-volatile memory. The first set of bits is sensed from a word line of the non-volatile memory. The word line is sensed to generate a second set of bits in response to a first power-on event being initiated at the data storage device after writing the indication of the first error rate to the non-volatile memory. The method further includes setting a data retention flag in response to a difference between the first error rate and a second error rate associated with the second set of bits satisfying a threshold.