Electronic switch for selecting satellite polarization signals

Details Electronic switch for selecting satellite polarization signals Electronic switch for selecting satellite polarization signals

1992-06-16

1994-04-12

Heyman, John S.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455 32, 307234, 307271, H04B 116

Patent

active

053034031

ABSTRACT:
An electronic switch used in a low-noise block down converter for receiving satellite horizontal or vertical polarization signals. The electronic switch only needs one single wire to receive a pulse width signal of a TV receiver. The electronic switch output a HIGH voltage level and a LOW voltage level according to the pulse Width of the signal from the TV receiver to control the selection of the vertical or horizontal polarization signals.

REFERENCES:
patent: 4027301 (1977-05-01), Mayer
patent: 4127818 (1978-11-01), Mogi
patent: 4290055 (1981-09-01), Furney et al.
patent: 4429415 (1984-01-01), Chin et al.
patent: 4608710 (1986-08-01), Sugiura
patent: 4672687 (1987-06-01), Horton et al.
patent: 4736458 (1988-04-01), Lommers
patent: 4941050 (1990-07-01), Bird

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