Patents by Inventor Manratha Rajasekharaiah Jaisimha

Manratha Rajasekharaiah Jaisimha 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).

  • Patent number: 6108753
    Abstract: A method and apparatus is provided for enhanced error correction processing through a retry mechanism. When an L1 cache instruction line error is detected, either by a parity error detection process or by an ECC (error correcting code) or other process, the disclosed methodology will schedule an automatic retry of the event that caused the line error without re-booting the entire system. Thereafter, if the error remains present after a predetermined number of retries to load the requested data from L1 cache, then a second level of corrective action is undertaken. The second level corrective action includes accessing an alternate memory location, such as the L2 cache for example. If the state of the requested cache line is exclusive or shared, then an artificial L1 miss is generated for use in enabling an L2 access for the requested cache line.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: August 22, 2000
    Assignee: International Business Machines Corporation
    Inventors: Douglas Craig Bossen, Manratha Rajasekharaiah Jaisimha, Avijit Saha, Shih-Hsiung Stephen Tung