Multiplex communications – Communication over free space – Message addressed to multiple destinations
Patent
1994-09-29
1997-05-27
Marcelo, Melvin
Multiplex communications
Communication over free space
Message addressed to multiple destinations
370324, 370331, 455 332, 455 511, H04B 7185
Patent
active
056338724
ABSTRACT:
A network hub switching center routes communications from and to a plurality of RTUs. CTSs transmit data to the RTUs dispersed over a predetermined CTS geographic area and the RTUs present multiplexed digital data which is synchronously related to the CTS broadcast signal for communication with identified individual RTUs within designated geographic areas. A number of intermediate receivers are provided with each CTS for receiving messages from low-powered local RTUs. The intermediate receivers are located at a set of cell subdivision sites, which are partitioned from the CTS geographic area and are dispersed over the CTS geographic area. The CTS data processing and transmission facilities provides for synchronizing the transmission facilities with a precision clock signal derived from an independent precision clock source. The clock source is independent of the radio broadcast signals when the interactive radio network operates in conjunction with a source of radio broadcast signals. In one embodiment, the precision clock signal is obtained, for example, from a Global Positioning System (GPS) network. The CTSs and RTUs operate in a band of carrier frequencies between 218-219 MHz. The RTUs transmit on a plurality of frequencies, and the receive-only intermediate receivers at different subdivision sites operate on different ones of said frequencies within the 218-219 MHz band.
REFERENCES:
patent: 4591906 (1986-05-01), Morales-Garza et al.
patent: 4755871 (1988-07-01), Morales-Garza et al.
patent: 5101267 (1992-03-01), Morales-Garza
patent: 5159593 (1992-10-01), D'Amico et al.
patent: 5245634 (1993-09-01), Averbuch
patent: 5367524 (1994-11-01), Rideout, Jr. et al.
patent: 5388101 (1995-02-01), Dinkins
patent: 5392353 (1995-02-01), Morales
Eon Corporation
Marcelo Melvin
LandOfFree
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