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. 28, 2017
Filed:
Apr. 30, 2015
Applicant:
Sandisk Technologies Inc., Plano, TX (US);
Inventors:
Dinesh Agarwal, Bangalore, IN;
Vijay Sivasankaran, Bangalore, IN;
Assignee:
SanDisk Technologies LLC, Plano, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G06F 11/10 (2006.01); G11C 29/52 (2006.01); G06F 3/06 (2006.01); G11C 7/20 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1068 (2013.01); G06F 3/064 (2013.01); G06F 3/0619 (2013.01); G06F 3/0679 (2013.01); G11C 7/20 (2013.01); G11C 29/52 (2013.01);
Abstract
A memory system or flash memory device may include mechanism for handling power loss with a dual programming architecture. The state of primary and secondary blocks may be reconstructed to a state immediately preceding a power loss. The reconstruction may include comparing error correction code (ECC) headers of blocks to recreate a block exchange with fewer control updates. The comparison can be used to identify a primary and secondary block. The header may identify a particular stream, identify a free block, identify a release block, and other information.