Patents by Inventor Charles Shelley Meyer

Charles Shelley Meyer 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).

  • Patent number: 4065678
    Abstract: A clamped push-pull driver circuit suitable for driving high capacitive loads includes a bootstrap MOS inverter circuit driving an MOS push-pull driver circuit. A regulator circuit including a plurality of diode-connected MOSFETs is coupled between the output of the MOS bootstrap inverter and a ground conductor. A MOSFET (the feedback device) having its gate electrode coupled to the output of the MOS push-pull circuit is connected in series with the diode-connected MOSFETs. Rapid rise time and short delay are achieved at the output of the clamped push-pull driver circuit, since the regulator circuit does not begin to conduct current (i.e., does not start the clamping action) until the output voltage of the push-pull driver circuit has exceeded two thresholds. Thus a large drive capability is provided to initiate the rising action of the output signal and clamping only begins to occur after the output is already rising towards a higher virtual final level than that which clamping will allow.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: December 27, 1977
    Assignee: Motorola, Inc.
    Inventors: Edmund Arthur Reese, Charles Shelley Meyer, George S. Leach, Jr.