Patents by Inventor Robert Derrick Gourdine

Robert Derrick Gourdine 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).

  • Telephone terminal apparatus and method
    Patent number: 6940968
    Abstract: A telephone apparatus comprises a first audio input device, a second audio input device, a first audio output device, and a second audio output device. The telephone apparatus is operative to couple the first audio input device and the first audio output device to a first telephone line. In response to a first signal, the coupling between the first audio input device and the first telephone line is modified, and the second audio input device and the second audio output device are coupled to a second telephone line.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: September 6, 2005
    Assignee: SBC Properties, L.P.
    Inventors: Marc Ira Lipton, Robert Derrick Gourdine
  • Telephone terminal apparatus and method
    Patent number: 5991398
    Abstract: A telephone apparatus comprises a first audio input device, a second audio input device, a first audio output device, and a second audio output device. The telephone apparatus is operative to couple the first audio input device and the first audio output device to a first telephone line. In response to a first signal, the coupling between the first audio input device and the first telephone line is modified, and the second audio input device and the second audio output device are coupled to a second telephone line.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: November 23, 1999
    Assignee: Ameritech Corporation
    Inventors: Marc Ira Lipton, Robert Derrick Gourdine