Patents by Inventor Sunil Kakkar

Sunil Kakkar 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).

  • Identification of faults in data paths and functional units of a central processing unit by a systematic execution of test instructions
    Patent number: 5712972
    Abstract: A systematically structured diagnostic for detecting, isolating, analyzing and reporting problems or faults in a central processing unit. The diagnostic causes the central processing unit to execute instructions, the instructions being selected such that the central processing unit, in executing the instructions, must use every data path and functional unit therein. Errors caused by particular instructions are correlated with the functional units or datapaths used by those instructions, to produce a list of possibly faulty datapaths and functional units. Test procedures, specifically designed to the possibly faulty datapaths and functional units, are then applied to the central processing unit to isolate which of the possibly faulty data paths or functional units are in fact faulty, which are then reported.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 27, 1998
    Assignees: Sony Corporation, Sony Electronics, Inc.
    Inventor: Sunil Kakkar