Patents by Inventor Lawrence J. Trimnell

Lawrence J. Trimnell 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).

  • Control communication in a switching system having clustered remote switching modules
    Patent number: 4583218
    Abstract: An arrangement comprising a host switching system and a number of remote switching modules which are directly interconnected such that voice and data traffic as well as control information can be conveyed between modules without being routed through the host system network. The arrangement allows the integrated stand-alone operation of the remote switching modules and advantageously reduces traffic through the host system network during normal operation.
    Type: Grant
    Filed: May 11, 1983
    Date of Patent: April 15, 1986
    Assignee: AT&T Bell Laboratories
    Inventors: Menachem T. Ardon, James C. Kennedy, Douglas S. Sand, Lawrence J. Trimnell, Meyer J. Zola
  • Channel selection in a switching system having clustered remote switching modules
    Patent number: 4566094
    Abstract: An arrangement comprising a host switching system and a number of remote switching modules which are directly interconnected such that voice and data traffic as well as control information can be conveyed between modules without being routed through the host system network. The arrangement allows the integrated stand-alone operation of the remote switching modules and advantageously reduces traffic through the host system network during normal operation. For each pair of remote switching modules, one of the modules selects the channels of the direct interconnection which are used for conveying information between the modules.
    Type: Grant
    Filed: May 11, 1983
    Date of Patent: January 21, 1986
    Assignee: AT&T Bell Laboratories
    Inventors: Menachem T. Ardon, James C. Kennedy, Douglas S. Sand, Lawrence J. Trimnell, Meyer J. Zola
  • Switching system having selectively interconnected remote switching modules
    Patent number: 4558444
    Abstract: An arrangement comprising a host switching system and a number of remote switching modules which are selectively interconnected by a time-multiplexed switch such that voice and data traffic as well as control information is conveyed between modules without being routed through the host system network. The arrangement allows the integrated stand-alone operation of the remote switching modules and advantageously reduces traffic through the host system during normal operation.
    Type: Grant
    Filed: May 11, 1983
    Date of Patent: December 10, 1985
    Assignee: AT&T Laboratories
    Inventors: James C. Kennedy, Lawrence J. Trimnell, Meyer J. Zola