Patents by Inventor Richard Lee Hammon

Richard Lee Hammon 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: 6101421
    Abstract: A method for recovering from a reset in a microprocessor includes steps of evaluating a predetermined pattern in a volatile memory (102), determining the type of reset which occurred depending upon whether the predetermined pattern is intact (103); and initializing the memory depending upon the type of reset. In particular, all locations in the memory will be initialized if a "power on" reset occurs (107) and initializing only selected portions of the memory if a "static" or "cradled" reset has occurred (104). If a static or cradled reset has occurred, all locations of the memory are initialized except those locations including state information to allow normal operation of the microprocessor. That is, the operation of the microprocessor based device can be restored without interruption after the reset.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: August 8, 2000
    Assignee: Motorola, Inc.
    Inventors: James Francis Goedken, Richard Lee Hammon