Patents by Inventor William Lee Richardson

William Lee Richardson 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).

  • Method of validating memory structures in data processing systems
    Patent number: 5815656
    Abstract: A data processing system executes a plurality of processes in parallel. The processes access shared user records stored in memory serially. One or more data structures are used to track access by processes to the data structures and to the user records. Responsive to a fault occurring in a first parallel process, a signal is given the remaining parallel processes indicating the failure. Responsive to the failure, it is determined if the faulting parallel process had access to one of the data structures. Depending upon the circumstances of access, integrity of the user records may be assumed and the record validated. The data structures themselves can be examined to determine if the contents of memory is reliable. Typically the data structures support use of the memory as a cache.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: September 29, 1998
    Assignee: International Business Machines Corporation
    Inventors: Susan Kay Candelaria, Michael Howard Hartung, Dennis Albert Kukula, Kenneth Wayne Lane, Vernon John Legvold, Guy Eugene Martin, John Norbert McCauley, Jr., Carol Santich Michod, Mark Albert Reid, William Lee Richardson