H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/94
H04N 5/50 (2006.01) H03J 1/00 (2006.01) H04B 1/16 (2006.01) H04N 7/20 (2006.01)
Patent
CA 1324655
ABSTRACT OF THE DISCLOSURE A circuit for indicating the existence or non-existence of a satellite signal at a satellite-broadcast receiver. The circuit includes an antenna adjusting part aimed toward the satellite after the satellite signal is tuned using a channel tuning stage driven by the output of a microcomputer. The level of the intermediate frequency (IF) signal is detected by the IF signal automatic gain control (AGC) amplifier and the IF signal level detector. A video signal detecting stage detects the frequency modulation (FM) signal of the IF signal AGC amplifier output and the existence or non-existence of the video signal is determined after audio/video signal processing, and a channel displaying part, wherein the state of said video detecting part and the antenna position where video signal exists are displayed by on-screen operations.
604644
R. William Wray & Associates
Samsung Electronics Co. Ltd.
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