Patents by Inventor Chang Y. Wu

Chang Y. Wu 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 and apparatus for electrostatic discharge testing of machines which repetitively execute a stored program with a plurality of program steps
    Patent number: 4961157
    Abstract: The present invention employs random electrostatic discharges to stress test electrical machinery, particularly digital computer systems running repetitive diagnostic programs. There is provided an interactive capability which allows the user to determine test duration either in terms of a fixed time or in terms of a specified confidence level, the latter case being one in which the system provides the user with an indication of the run time required. Significant improvements over deterministic "zapping" devices result.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: October 2, 1990
    Assignee: International Business Machines
    Inventors: Howard H. Nick, Brock E. Osborn, Chang Y. Wu