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. 14, 2012
Filed:
Jun. 04, 2009
Michael Hicken, Rochester, MN (US);
Martin Dell, Bethlehem, PA (US);
Michael Hicken, Rochester, MN (US);
Martin Dell, Bethlehem, PA (US);
LSI Corporation, Milpitas, CA (US);
Abstract
A flash-memory system is organized into a plurality of blocks and a plurality of pages in each block, each page having 2data locations and K spare locations. At least one page in the memory has 2−1 user data sectors and each sector has 2+L locations therein. Error-correction code (ECC) data related to the user data is calculated and stored in at least the 2user data locations unused by the 2−1 user data sectors. Because L is at least 1 but less than 2(N>M), at least a portion of one user data sector is stored in the spare memory locations. Additional locations in each page are available to allow for the ECC data to have additional redundancy bits added per sector, thereby making the flash memory system more robust and reliable.