Patents by Inventor Jerome A. Gerner

Jerome A. Gerner 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 testing a cache tag memory array
    Patent number: 5729677
    Abstract: Content testing (302-306) and comparator testing (312-326) of a tag section (24, 26) of a cache tag memory array is performed to confirm that the tag section (24, 26) is functional. For content testing (302-306), each tag location is tested once. Comparator testing (312-326) is performed to determine the functionality of the comparator (240, 260) of the cache tag memory array. The number of tests performed for the comparator testing is 2.times.M+2, where M is the number of bit positions in the tag location. Two of the tests are for testing the comparator's ability to identify correctly hits within the tag section (312-316). The other tests are for testing the comparator's ability to identify correctly misses within the tag section at each bit position of the tag locations (322-326).
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: March 17, 1998
    Assignee: Motorola Inc.
    Inventors: Robert Han Wu, Jerome A. Gerner, Richard A. Wheelus