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:
Aug. 10, 2010
Filed:
Nov. 30, 2007
Brady L. Keays, Half Moon Bay, CA (US);
Shuba Swaminathan, Los Gatos, CA (US);
William H. Radke, San Francisco, CA (US);
Brady L. Keays, Half Moon Bay, CA (US);
Shuba Swaminathan, Los Gatos, CA (US);
William H. Radke, San Francisco, CA (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
Improved memory devices, circuitry, and data methods are described that facilitate the detection and correction of data in memory systems or devices in combination with a stored record of known flaws, errors, or questionable data bits of a read memory row or block to allow for more efficient processing and correction of these errors. An embodiment of the present invention utilizes an erasure pointer that can store the location of N bad or questionable bits in the memory segment that is currently being read, where for each bit stored by the erasure pointer the embodiment also contains 2ECC generators to allow the read data to be quickly checked with the known bad bits in each possible state. This allows the read data to then be easily corrected on the fly before it is transferred by selecting the bad bit state indicated by the ECC generator detecting an uncorrupted read.