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:
May. 01, 2012
Filed:
Jan. 31, 2008
Timothy J. Dell, Colchester, VT (US);
Luis A. Lastras-montano, Cortlandt Manor, NY (US);
Barry M. Trager, Yorktown Heights, NY (US);
Shmuel Winograd, Scarsdale, NY (US);
Timothy J. Dell, Colchester, VT (US);
Luis A. Lastras-Montano, Cortlandt Manor, NY (US);
Barry M. Trager, Yorktown Heights, NY (US);
Shmuel Winograd, Scarsdale, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system to improve memory reliability in computer systems that may include memory chips, and may rely on a error control encoder to send codeword symbols for storage in each of the memory chips. At least two symbols from a codeword are assigned to each memory chip and therefore failure of any of the memory chips could affect two symbols or more. The system may also include a table to record failures and partial failures of the codeword symbols for each of the memory chips so the error control encoder can correct subsequent partial failures based upon the previous partial failures. The error control coder is capable of correcting and/or detecting more errors if only a fraction of a chip is noted in the table as having a failure as opposed to a full chip noted as having a failure.