Patents by Inventor Tim Funderburk

Tim Funderburk 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).

  • Multiport conference circuit with multi-frame summing and voice level coding
    Patent number: 4274155
    Abstract: An improved conference circuit for use in a Pulse Code Modulation telephone switching system wherein a number of channels are combined so that a number of subscribers may participate in a common telephone conversation. The conference circuit is provided with a voice level coding arrangement whereby the voice level comparisons used in the speaker selection process are facilitated, and with a multi-frame coded voice level summing arrangement whereby channel switching caused by spurious noise peaks is effectively eliminated.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: June 16, 1981
    Assignee: GTE Automatic Electric Laboratories Inc.
    Inventors: Tim Funderburk, Donald W. McLaughlin
  • Multiport conference circuit with multi-frame summing
    Patent number: 4257120
    Abstract: An improved conference circuit for use in a Pulse Code Modulation telephone switching system wherein a number of channels are combined so that a number of subscribers may participate in a common telephone conversation. The conference circuit is provided with a multi-frame voice level summing arrangement whereby spurious channel switching caused by noise peaks is effectively eliminated.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: March 17, 1981
    Assignee: GTE Automatic Electric Laboratories Incorporated
    Inventors: Tim Funderburk, Donald W. McLaughlin
  • Multiport conference circuit with voice level coding
    Patent number: 4254497
    Abstract: An improved conference circuit for use in a Pulse Code Modulation telephone switching system wherein a number of channels are combined so that a number of subscribers may participate in a common telephone conversation. The conference circuit is provided with a voice level coding arrangement whereby the voice level comparisons used in the speaker selection process are facilitated.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: March 3, 1981
    Assignee: GTE Automatic Electric Laboratories, Inc.
    Inventors: Tim Funderburk, Donald W. McLaughlin