Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1989-01-24
1993-11-16
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455 32, 455209, 455258, H04B 116
Patent
active
052631826
ABSTRACT:
A system for receiving the satellite broadcasting signal which amplifies all signals within 10.95-12.5 GHz by use of a single low-noise wide-band amplifier, selects one of two local oscillators having frequencies of 10 GHz and 10.75 GHz according to a FSS/BSS Fixed Satellite Service/Broadcasting Satellite Service (FSS/BSS) selection control signal by use of the two local oscillators, and amplifies the signals of 0.95-1.75 GHz band in an IF amplifier, whereby all the satellite broadcasting signals of the FSS/BSS bands can be received by using a single low-noise block converter instead of using double low-noise block converters. The system includes a low-noise block converter 102 for selecting one of two local oscillators according to a FSS/BSS selection control signal, so that either one of the satellite broadcasting signals of FSS/BSS bands can be received through the antenna; and a satellite broadcasting receiver 30 coupled between the block converter and the television receiver, for generating the FSS/BSS selection control signal selected by an user, receiving a corresponding intermediate-frequency (IF) signal outputted from the block converter, and then converting the IF signal of the satellite into a radio-frequency (RF) signal for television through the detection of the IF signal received, so that the converted signal is thereby outputted to the television receiver.
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Bushnell Robert E.
Eisenzopf Reinhard J.
Samsung Electronics Co,. Ltd.
Urban Edward
LandOfFree
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