Patents by Inventor Jim Girardeau

Jim Girardeau 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).

  • Apparatus for modulating/demodulating signals
    Patent number: 5963588
    Abstract: An apparatus connects a data processing system (10) with an analog telephone line and/or an ISDN line. The apparatus modulates and demodulates data from the data processing system (10) to either of the two different telephone protocols without adding unnecessary expense or noise to the system.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: October 5, 1999
    Assignee: Motorola, Inc.
    Inventors: David Yatim, Jim Girardeau