Patents by Inventor J. Darryl Lieux

J. Darryl Lieux 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).

  • Means for reducing current-gain modulation due to differences in collector-base voltages on a transistor pair
    Patent number: 4283673
    Abstract: In a circuit including a transistor pair feeding separate loads at different load voltages, current gain modulation or Early effect is avoided by employing an operational amplifier to maintain the collector-base voltages of the transistors equal and thereby maintain their alpha current gains equal.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: August 11, 1981
    Assignee: Signetics Corporation
    Inventor: J. Darryl Lieux