Patents by Inventor Luis C. Alves

Luis C. Alves has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110320918
    Abstract: Error correction and detection in a redundant memory system including a a computer implemented method that includes receiving data including error correction code (ECC) bits, the receiving from a plurality of channels, each channel comprising a plurality of memory devices at memory device locations. The method also includes computing syndromes of the data; receiving a channel identifier of one of the channels; and removing a contribution of data received on the channel from the computed syndromes, the removing resulting in channel adjusted syndromes. The channel adjusted syndromes are decoded resulting in channel adjusted memory device locations of failing memory devices, the channel adjusted memory device locations corresponding to memory device locations.
    Type: Application
    Filed: June 24, 2010
    Publication date: December 29, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Luis C. Alves, Luis A. Lastras-Montano, Patrick J. Meaney, Eldee Stephens, Barry M. Trager
  • Patent number: 8041990
    Abstract: A system and method for error correction and detection in a memory system. The system includes a memory controller, a plurality of memory modules and a mechanism. The memory modules are in communication with the memory controller and with a plurality of memory devices. The mechanism detects that one of the memory modules has failed possibly coincident with a memory device failure on an other of the memory modules. The mechanism allows the memory system to continue to run unimpaired in the presence of the memory module failure and the memory device failure.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: October 18, 2011
    Assignee: International Business Machines Corporation
    Inventors: James A. O'Connor, Luis A. Lastras-Montano, Luis C. Alves, William J. Clarke, Timothy J. Dell, Thomas J. Dewkett, Kevin C. Gower
  • Publication number: 20090006886
    Abstract: A system and method for error correction and detection in a memory system. The system includes a memory controller, a plurality of memory modules and a mechanism. The memory modules are in communication with the memory controller and with a plurality of memory devices. The mechanism detects that one of the memory modules has failed possibly coincident with a memory device failure on an other of the memory modules. The mechanism allows the memory system to continue to run unimpaired in the presence of the memory module failure and the memory device failure.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 1, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: James A. O'Connor, Luis A. Lastras-Montano, Luis C. Alves, William J. Clarke, Timothy J. Dell, Thomas J. Dewkett, Kevin C. Gower