Patents by Inventor James W. Stone

James W. Stone 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 for simulating and testing an integrated circuit chip
    Patent number: 4488354
    Abstract: A method and apparatus for simulating custom chips to be used in a data processing system. Each chip is simulated by a chip simulator that includes a mother board and a plurality of baby boards mounted and interconnected on the mother board. Each baby board has circuit components mounted thereon for performing the circuit function of one cell of the chip. Chip simulators are interconnected in an interconnecting apparatus that supports the mother boards in parallel and spaced apart relation. Chip simulators that represent all of the chips found on a single printed circuit board in the system are interconnected at the interconnecting apparatus so that design errors which are only evident when the chips are interconnected can be tested for and detected prior to fabrication of the chips.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: December 18, 1984
    Assignee: NCR Corporation
    Inventors: Kasun K. Chan, Gerald J. Erickson, David B. Schuck, James W. Stone