Receiving satellite switching apparatus

Details Receiving satellite switching apparatus Receiving satellite switching apparatus

1992-06-30

1994-09-06

Eisenzopf, Reinhard J.

Telecommunications

Wireless distribution system

455131, 4551881, 342362, H04B 106

Patent

active

053455916

ABSTRACT:
When a satellite among a plurality thereof is designated as well as a polarized signal to be received from this satellite in a receiving satellite switching apparatus, a voltage changeover unit applies a DC feed voltage, which is inputted from a receiver, to whichever low-noise block converter corresponds to the satellite and polarized signal designated. The signal is applied via a coaxial cable. The low-noise block converter to which the DC feed voltage has been applied converts the designated polarized signal from the designated satellite into an intermediate-frequency signal and inputs this signal to the receiver via a mixer by means of a coaxial cable. At this time the DC voltage applied to the coaxial cable is blocked by a DC voltage blocking unit so that it will not enter circuitry which does not require this voltage.

REFERENCES:
patent: 4509198 (1985-04-01), Nagatomi
patent: 4592093 (1986-05-01), Ouchi et al.
patent: 4796032 (1989-01-01), Sakurai et al.
patent: 5206954 (1993-04-01), Inoue et al.

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