Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Patent
1995-11-09
1998-12-22
Nguyen, Chau
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
375200, 348 21, H04N 521
Patent
active
058526129
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. The maximum delay processing window of the delay processor is at least as long as the difference in propagation time to the receiver from two of the transmitters and preferably exceeds that time by some amount chosen to permit processing of multipath delay signals from the more distant transmitter.
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Campbell W. Tim
Kostreski Bruce
Schneider Allan
Sistanizadeh Kamran
Bell Atlantic Network Services Inc.
Nguyen Chau
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