초록 ▼

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 tra

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.

대표청구항 ▼

[ We claim:] [1.] In a reception area having overlapping radio frequency propagation areas generated by corresponding transmitting sites each simulcast transmitting a signal including multiplexed channels of compressed digital broadband data, a method comprising the steps of:(a) receiving a signal c

[ We claim:] [1.] In a reception area having overlapping radio frequency propagation areas generated by corresponding transmitting sites each simulcast transmitting a signal including multiplexed channels of compressed digital broadband data, a method comprising the steps of:(a) receiving a signal containing a plurality of time offset counterparts of said transmitted simulcast signal at a receiving site within said reception area;(b) processing said time offset counterparts of the received signal to acquire a single copy of a signal corresponding to a selected one of the multiplexed channels; and(c) presenting a selected portion of the compressed digital broadband data contained in the acquired single copy;wherein the transmitted signal is a spread spectrum signal, the processing step comprising the step of spread spectrum processing the received signal in accordance with a selected spread spectrum code to develop a composite signal as said single copy.