Patents by Inventor Richard W. Ezell

Richard W. Ezell 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).

  • Potentiometer
    Patent number: 5594408
    Abstract: A digital potentiometer adapted for and connected to and interacting directly with a plurality of external switches. Specifically, the various wiper points of a semiconductor resistor array are selected, for each channel of an audio amplification device according to various switch selections. The method and apparatus disclosed also makes priority determinations if more than one external switch is selected at the same time according to which switch was selected first.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: January 14, 1997
    Assignee: Dallas Semiconductor
    Inventor: Richard W. Ezell