INPUT SWITCHING CIRCUIT OF TELEVISION TUNER

INPUT SWITCHING CIRCUIT OF TELEVISION TUNER

PROBLEM TO BE SOLVED: To lessen leakage of an FM broadcasting signal at the time of receiving a television signal and remove a cross fire due to the FM broadcasting signal. SOLUTION: An input switching circuit comprises a first switch circuit 5 which is interposed between a first input end 1 and an...

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Hauptverfasser: YAMAMOTO MASAKI, FURUTA TOSHIRO
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
SELECTING RESONANT CIRCUITS
TRANSMISSION
TUNING RESONANT CIRCUITS
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creator YAMAMOTO MASAKI
FURUTA TOSHIRO
description PROBLEM TO BE SOLVED: To lessen leakage of an FM broadcasting signal at the time of receiving a television signal and remove a cross fire due to the FM broadcasting signal. SOLUTION: An input switching circuit comprises a first switch circuit 5 which is interposed between a first input end 1 and an output end 2, and an interval between the first input end 1 and the first output end 2 inputting a television signal is set to a passing state of the signal when receiving the television signal, and set to a non-passing state of the signal when receiving an FM broadcasting signal, and a second switch circuit 13 which is interposed between a second input end 11 and the second output end 2 inputting an FM signal, and an interval between the second input end 11 and the output end 2 is set to the passing state of the signal when receiving the FM broadcasting signal, and set to the non-passing state of the signal when receiving the television signal.
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subjects BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
SELECTING RESONANT CIRCUITS
TRANSMISSION
TUNING RESONANT CIRCUITS
title INPUT SWITCHING CIRCUIT OF TELEVISION TUNER
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