Patents by Inventor Roger Grass

Roger Grass 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).

  • Apparatus and method for observing the mode of a memory device
    Patent number: 5892777
    Abstract: A method and apparatus observes a mode register (102) in a synchronous memory device. A multiplexer (306) selects the value of the mode register (102) or the conventional data path of the memory array (302) through the output buffer. The invention outputs the stored value of the control register (102) on output pins, such as address pins when no signal is expected. The multiplexer (306) maybe responsive to a variety of control signals.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: April 6, 1999
    Assignee: Motorola, Inc.
    Inventors: Michael Nesheiwat, Roger Grass, Arthur O'Donnell