Patents by Inventor Alan J. Melia

Alan J. Melia 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 testing integrated circuits using AC test input and comparison of resulting frequency spectrum outputs
    Patent number: 4506212
    Abstract: An integrated circuit is tested by applying to it the output of a clocked word generator. The resulting output from the circuit is analyzed by a phase sensitive detector comprising a series of sampling switches and integrators which are synchronized with the generator frequency. The output spectrum is compared with that of a reference to evaluate the quality of the circuit.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: March 19, 1985
    Assignee: The Post Office
    Inventor: Alan J. Melia