Patents by Inventor W. Tim Campbell

W. Tim Campbell 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: 5852612
    Abstract: An arrangement (apparatus and method) for obtaining a single copy of a received signal from a simulcast broadcast area. Within a desired service area, multiple transmitters at separately located sites simultaneously broadcast the same multi-channel, multi-program signal. Broadcast waves from the transmitters propagate throughout substantially overlapping portions of the service area. Each such channel carries a multiplexed digital data stream containing packets of information for a plurality of programs, e.g. television programs. A receiver system comprises an antenna adapted to receive direct transmissions from two or more of the transmitters as well as multipath signals from two or more of the transmitters. To compensate for the potentially interfering signal receptions, the terminal device includes a delay processor, such as an adaptive delay equalizer or a rake receiver.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: December 22, 1998
    Assignee: Bell Atlantic Network Services, Inc.
    Inventors: Bruce Kostreski, Allan Schneider, Kamran Sistanizadeh, W. Tim Campbell
  • Patent number: 5646942
    Abstract: Within a desired service area, multiple transmitters at separately located sites simultaneously broadcast the same multi-channel, multi-program signal. Broadcast waves from the transmitters propagate throughout substantially overlapping portions of the service area. Obstructions in the service area, e.g. mountains, buildings, trees, etc., may block reception from one or more of the transmitters at certain sites. However, at most receiving sites, the receiving antenna can receive a clear line-of-sight transmission from at least one and often two or more of the transmitters. Each broadcast channel carries a multiplexed digital data stream containing packets of information for a plurality of programs, e.g. television programs. A shared antenna system, typically including multiple receiving antennae aimed at a plurality of the transmitters, supplies received signals to terminals in a plurality of living units.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: July 8, 1997
    Assignee: Bell Atlantic Network Services, Inc.
    Inventors: Brian D. Oliver, Bruce Kostreski, W. Tim Campbell, Kamran Sistanizadeh