Patents by Inventor Heinz Bernhard Maeder

Heinz Bernhard Maeder 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).

  • MOS input buffer with hysteresis
    Patent number: 4071784
    Abstract: An MOS input buffer circuit includes an input connected to the gate electrode of an enhancement mode input MOSFET. The drain of the input MOSFET is connected to the output of the input buffer circuit. The source of the input MOSFET is connected to the drain of a second depletion mode MOSFET having its source connected to ground and its gate connected to a V.sub.DD voltage conductor. A load circuit is coupled between the V.sub.DD voltage conductor and the output, and consists of an enhancement mode MOSFET and a depletion load MOSFET coupled in series between output and V.sub.DD voltage conductor. A third depletion mode MOSFET has its drain connected to the V.sub.DD voltage conductor, its source connected to the source of the input MOSFET, and its gate connected to the output. The positive gain (or negative slope) portion of the switching characteristic of the input buffer circuit extends substantially all the way between the high and low output levels.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: January 31, 1978
    Assignee: Motorola, Inc.
    Inventors: Heinz Bernhard Maeder, Gene Arnold Schriber