Patents by Inventor Joseph H. Heinrich

Joseph H. Heinrich 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).

  • Circuit for multiple match hit CAM readout
    Patent number: 6804132
    Abstract: An apparatus for reading out multiple match hits from a content addressable memory (CAM), comprising a priority encoder for receiving a plurality of matchlines from a CAM and for encoding addresses of the CAM that are associated with the matchlines that indicate a match, and a matchline mask system for selectively masking off a matchline that indicates a match from the priority encoder after the address associated with that matchline is encoded by the priority encoder.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: October 12, 2004
    Assignee: International Business Machines Corporation
    Inventors: William R. Andersen, Joseph H. Heinrich
  • Circuit for multiple match hit CAM readout
    Publication number: 20040100809
    Abstract: An apparatus for reading out multiple match hits from a content addressable memory (CAM), comprising a priority encoder for receiving a plurality of matchlines from a CAM and for encoding addresses of the CAM that are associated with the matchlines that indicate a match, and a matchline mask system for selectively masking off a matchline that indicates a match from the priority encoder after the address associated with that matchline is encoded by the priority encoder.
    Type: Application
    Filed: November 25, 2002
    Publication date: May 27, 2004
    Applicant: International Business Machines Corporation
    Inventors: William R. Andersen, Joseph H. Heinrich