Television – Receiver circuitry – Television receiver adapted to receive radio broadcast or in...
Patent
1994-04-08
1996-07-02
Kostak, Victor R.
Television
Receiver circuitry
Television receiver adapted to receive radio broadcast or in...
455 32, H04N 546, H04H 100
Patent
active
055327605
ABSTRACT:
A satellite broadcast receiver capable of receiving audio SCPC signals is disclosed in which the receiver comprises an RF reception unit for receiving television signals and audio SCPC signals broadcast from a satellite, frequency converter for converting an RF output from said RF reception unit into an IF signal, separator for separating the output of said frequency converter into a television signal and an audio SCPC signal, a TV signal processing unit for receiving and processing a first output from the separator, an SCPC signal processing unit for receiving and processing a second output from the separator, and a selector for selecting any one of the outputs from the TV signal processing unit and said SCPC signal processing unit, thereby enabling selective reception of TV signals and audio SCPC signals broadcast from a satellite. The RF reception unit comprises an RF amplifier, and the frequency converter comprises a feedback circuit for selectively feeding the first and the second outputs of the separator back to the RF amplifier, thereby controlling a gain of the RF amplifier. The TV signal processing unit includes a video detector for receiving and detecting a television signal from the separator, an audio circuit for receiving an audio signal from the video detector, and a video circuit for receiving a video signal from the video detector. The selector comprises a switch for selecting any one of the outputs of the SCPC signal processing unit and the audio circuit.
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Kostak Victor R.
Miller John W.
Uniden Corporation
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