Patents by Inventor Charles S. Patton

Charles S. Patton 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).

  • Memory device and method implementing wordline redundancy without an access time penalty
    Patent number: 4885720
    Abstract: A redundant word decoder compares an incoming address signal with a list of defective addresses and, in response to the comparison, produces at least one comparison signal to control the propagation of a redundany driver signal along at least one redundant wordline. A main trigger receives the comparison signal and, in response thereto, controls a triggering of a main wordline driver to produce a main driver signal. The main wordline driver and the redundant word decoder are responsive to opposite states of the comparison signal, such that, for a given comparison signal, only one of the main driver signal and redundant driver signal is applied to a memory array.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: December 5, 1989
    Assignee: International Business Machines Corporation
    Inventors: Christopher P. Miller, Charles S. Patton