AURAL ANNUNCIATOR CIRCUIT FOR A RECEIVER

An aural annunciator circuit for a radio receiver and a radio transceiver incorporating such. The annunciator circuit is operative to generate an aural signal when a signal is transmitted to the receiver in a manner analogous to telephonic ringer circuitry of conventional telephonic apparatus. The a...

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Bibliographische Detailangaben
Hauptverfasser: TRANDAI, TONY ANHTUAN, ALBERTH, WILLIAM PAUL, JR, DEMURO, DAVID MARK
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:An aural annunciator circuit for a radio receiver and a radio transceiver incorporating such. The annunciator circuit is operative to generate an aural signal when a signal is transmitted to the receiver in a manner analogous to telephonic ringer circuitry of conventional telephonic apparatus. The aural signal is of a signal level of a relatively high magnitude when the receiver in which the aural annunciator circuit is embodied is configured in a closed configuration and the aural signal is of a relatively low magnitude when the receiver is configured in an open configuration.