Patents by Inventor David A. Neiss

David A. Neiss 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: 5491836
    Abstract: A communication system (200) for providing analog signals comprises a terminal (220) for generating tone and voice signals on tone and voice lines (230, 235), respectively, and a signal processor (205) coupled to the terminal (220) for processing the tone and voice signals. The tone signals are coupled to an analog output (215) when the tone signals are determined to be present on the tone lines (230), and the voice signals are coupled to the analog output (215) when the tone signals are determined to not be present on the tone lines (230).
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: February 13, 1996
    Assignee: Motorola, Inc.
    Inventor: David A. Neiss