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:
Jan. 13, 2015
Sandisk Enterprise Ip Llc, Milpitas, CA (US);
James Fitzpatrick, Sudbury, MA (US);
Li Li, Wellesley, MA (US);
Mark Dancho, Chandler, AZ (US);
James R. Tylock, Shrewsbury, MS (US);
SANDISK ENTERPRISE IP LLC, Milpitas, CA (US);
Abstract
Systems, methods and/or devices are used to adapt a target charge to equalize bit errors across page types for a storage medium, such as flash memory, in a storage system. In one aspect, the method includes performing a sequence of operations, including: (1) determining a first target charge, a second target charge, and a third target charge, the first, second, and third target charges used for controlling first, second, and third charge distributions, respectively, in cells of the storage medium when data is written to the cells, wherein the second charge distribution is between the first charge distribution and the third charge distribution, (2) determining a first error indicator for lower/fast pages of the storage medium, (3) determining a second error indicator for upper/slow pages of the storage medium, and (4) adjusting the second target charge in accordance with the first error indicator and the second error indicator.