Telecommunications – Transmitter – Plural separate transmitters or channels
Patent
1994-11-16
1995-09-05
Urban, Edward F.
Telecommunications
Transmitter
Plural separate transmitters or channels
455 334, 455 561, 379 59, H04B 102
Patent
active
054487676
ABSTRACT:
Improved transmitter network with a single transmitter frequency.
A transmitter network comprising a plurality of transmitters having a like transmitter frequency may cause disturbance to occur in an adjacent similar transmitter network. This disturbance is not of an echo signal type, so that cancellation thereof is difficult. For eliminating this disturbance as much as possible, a transmitter network is used wherein a main transmitter is associated with auxiliary transmitters having an aerial height which becomes smaller for auxiliary transmitters located more closely to the boundary of the desired coverage area of the system.
REFERENCES:
patent: 4670899 (1987-06-01), Brody et al.
patent: 4726266 (1988-02-01), Perry
patent: 5038403 (1991-08-01), Leitch
patent: 5260988 (1993-11-01), Schellinger et al.
patent: 5295180 (1994-03-01), Vendetti et al.
Eason Leroy
Lin Mary M.
U.S. Philips Corporation
Urban Edward F.
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