Patents by Inventor Charles H. Higgins

Charles H. Higgins 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).

  • Data acquisition channel apparatus
    Patent number: 4546343
    Abstract: A hybrid integrated circuit data acquisition channel apparatus employing an operational amplifier fed by a low current differential bipolar transistor preamplifier having separate feedback gain and signal gain determining elements and providing an amplified signal output to a sample and hold and analog-to-digital converter circuits. The disclosed apparatus operates with low energy and small space requirements and is capable of operation without the sample and hold circuit where the nature of the applied input signal permits.
    Type: Grant
    Filed: July 3, 1984
    Date of Patent: October 8, 1985
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Charles H. Higgins, John D. Skipper