Patents by Inventor Kelly Clifford

Kelly Clifford 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).

  • Modem with integrated control processor and digital signal processor sessions
    Patent number: 6047308
    Abstract: A modem for processing telephone calls includes a line interface for coupling the modem to a telephone line and a computer interface for coupling the modem to a host computer. A processor in the modem between the line interface and the computer interface receives signals running between the telephone line and the host computer. Both the signal processing session and the control processing session required to process the signals are implemented on the single processor.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: April 4, 2000
    Assignee: Cisco Technology, Inc.
    Inventors: Grant Grummer, Bruce Osler, Frank O. Voellmann, Kelly Clifford, Douglas E. Green, Kenneth D. Jones