Telecommunications – Interference signal transmission
Patent
1982-09-22
1985-04-02
Bookbinder, Marc E.
Telecommunications
Interference signal transmission
358 86, 455 6, 455131, 455189, 455190, H04N 716, H04B 344
Patent
active
045091986
ABSTRACT:
A satellite broadcast signal receiving system for receiving a plurality of signals of individual transmission bands, which are mutually different in frequency and/or polarization angle, transmitted through an artificial satellite, wherein the signals picked up by an antenna or antennas are first applied to a plurality of outdoor units each corresponding to one transmission band and comprising a convertor for converting the incoming signal into an IF signal, and the converted IF signals are then applied through a change-over switch to a common indoor unit including a demodulator to be demodulated for application to a conventional television set or the like.
REFERENCES:
patent: 2815440 (1957-12-01), Fletcher
patent: 3242433 (1966-03-01), Carlson et al.
patent: 3839676 (1974-10-01), Linnecar
patent: 4205269 (1980-05-01), Watanabe
Bookbinder Marc E.
DX Antenna Company Limited
Geoffrey, Jr. Eugene E.
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