Voice actuated mobile radio

Claim 1

An interface apparatus for controlling the operation of a communications transmitter/receiver type radio, said interface apparatus comprising in combination; a capacitance type contact vibration transducer responsive to vibrations in the frequency range of at least 500 to 2,000 Hz, coupled to the throat area of the communicator for generating a transmit audio signal being coupled to a modulator section of said communications transmitter/receiver for modulating the transmitter output; voice operated switching means for switching the transmitter/receiver into and out of the transmit mode responsive to receiving said transmit audio signal from said contact vibration transducer, whereby the operation of and the transmit signal from the transmitter/receiver type radio will be relatively impervious to the high ambient noise level; remote disabling means for generating a disable signal coupled to said voice operated switching means for disabling said voice operated switching means from switching said transmitter/receiver into said transmit mode; means, coupled to said contact vibration transducer, for generating a keying signal responsive to receiving said transmit audio signal therefrom with said keying signal generating means continuing to generate said keying signal for a predetermined period of time after the loss of said transmit audio signal; and keying means coupled to said keying signal generating means for switching the transmitter/receiver into the transmit mode responsive to receiving said keying signal, and for switching the transmitter/receiver into the receive mode responsive to one of the loss of said keying signal and receiving said disable signal from said disabling means.