Patents by Inventor Lewis J. Marggraff

Lewis J. Marggraff 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).

  • Patent number: 4903261
    Abstract: A packet communications network and apparatus for communicating information in voice and data packets transmits and receives voice and data in accordance with standardized frames of a standardized communications format such as a standard DS-1 type trunk. An apparatus is coupled to multiplex standardized channels into a single channel wherein voice or data signals are packetized into independently addressable packets synchronized on, for example, the DS-1 frame. The network includes voice and packet data concentration apparatus operable in a multiple node trunk environment to concentrate signals into independently addressable synchronously switchable packets, thereby to provide an efficient (high density capacity) interface between trunk terminations. Up to four times as much information can be transferred between nodes with the ability to switch between nodes as compared to conventional TDM and PCM communication without compression without the ability to switch between nodes.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: February 20, 1990
    Assignee: Stratacom, Inc.
    Inventors: Paul Baran, Charles M. Corbalis, Brian D. Holden, Jon K. Masatsugu, Lewis J. Marggraff, David P. Owen, Peter W. J. Stonebridge
  • Patent number: 4819228
    Abstract: A packet communications network and apparatus for communicating information in voice and data packets transmits and receives voice and data in accordance with standardized frames of a standardized communications format such as a standard DS-1 type trunk. An apparatus is coupled to multiplex standardized channels into a single channel wherein voice or data signals are packetized into independently addressable packets synchronized on, for example, the DS-1 frame. The network includes voice and packet data concentration apparatus operable in a multiple node trunk environment to concentrate signals into independently addressable synchronously switchable packets, thereby to provide an efficient (high data capacity) interface between trunk terminations. Up to four times as much information can be transferred between nodes with the ability to switch between nodes as compared to conventional TDM and PCM communication without compression without the ability to switch between nodes.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: April 4, 1989
    Assignee: Stratacom Inc.
    Inventors: Paul Baran, Charles M. Corbalis, Brian D. Holden, Jon K. Masatsugu, Lewis J. Marggraff, David P. Owen, Peter W. J. Stonebridge
  • Patent number: 4771425
    Abstract: A packet communications network and apparatus for communicating information in voice and data packets transmits and receives voice and data in accordance with standardized frames of a standardized communications format such as a standard DS-1 type trunk. An apparatus is coupled to multiplex standardized channels into a single channel wherein voice or data signals are packetized into independently addressable packets synchronized on, for example, the DS-1 frame. The network includes voice and packet data concentration apparatus operable in a multiple node trunk environment to concentrate signals into independently addressable synchronously switchable packets, thereby to provide an efficient (high data capacity) interface between trunk terminations. Up to four times as much information can be transferred between nodes with the ability to switch between nodes as compared to conventional TDM and PCM communication without compression without the ability to switch between nodes.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: September 13, 1988
    Assignee: StrataCom, Inc.
    Inventors: Paul Baran, Charles M. Corbalis, Brian D. Holden, Jon K. Masatsugu, Lewis J. Marggraff, David P. Owen, Peter W. J. Stonebridge