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. 19, 2010
Filed:
Sep. 24, 2009
Holloway H. Frost, Houston, TX (US);
Charles J. Camp, Sugar Land, TX (US);
Timothy J. Fisher, Cypress, TX (US);
James A. Fuxa, Houston, TX (US);
Lance W. Shelton, Houston, TX (US);
Holloway H. Frost, Houston, TX (US);
Charles J. Camp, Sugar Land, TX (US);
Timothy J. Fisher, Cypress, TX (US);
James A. Fuxa, Houston, TX (US);
Lance W. Shelton, Houston, TX (US);
Texas Memory Systems, Inc., Houston, TX (US);
Abstract
Methods and apparatuses for reduction of Read Disturb errors in a NAND FLASH memory system comprise a controller configured to organize FLASH memory devices into blocks, each block having a plurality of pages, and each page defining an individually addressable physical memory location. The controller is further configured to accumulate a Block READ Count corresponding to the number of times any pages in a first block of pages have been read since the first block was last erased. Once the READ count reaches a predetermined number, the controller responds to subsequent READ requests for pages within the first block by moving data associated with a requested page to a page in a second, different block without moving data associated with other pages in the first block, and modifying a logical-to-physical translation table to associate the moved data with the physical address of the page in the second block.