Walkie-talkie device
AssigneeMarvin Glass & Associates
InventorsHoward J. Morrison, Albert G. Keller
Life of this patent
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Abstract
A walkie-talkie unit having a speaker connected to a radio transceiver for normal transmitting and receiving functions, plus a selectively actuatable audio signal generator. The generator generates one of a plurality of distinct signals of different frequency in response to a hand manipulatable actuator. When the walkie-talkie is in a transmitting mode the signal is transmitted to another walkie-talkie. When the walkie-talkie is in a receiving mode the signal is amplified by the generating walkie-talkie.
Claims14
In a walkie-talkie unit including a microphone/speaker connected to a radio transceiver including an RF source, a power supply, a modulator, an audio amplifier, an antenna, a detector for transmitting and receiving audio signals and switch means for selectively operating in either a transmit or receive mode, the improvement comprising:
- a selectively actuatable audio signal generator connected to said transceiver for generating an audio signal of at least one frequency for transmission to another walkie-talkie when in a transmitting mode as well as generating sound from its speaker when in a receiving mode;
- and
- a hand manipulatable actuator to selectively actuate said signal generator in either of said modes.
The walkie-talkie unit of claim 11 wherein said oscillator includes at least one unijunction transistor.
In a walkie-talkie unit including a microphone/speaker connected to a radio transceiver including an RF source, a power supply, a modulator, an audio amplifier, an antenna, a detector for transmitting and receiving audio signals and switch means for selectively operating in either a transmit or receive mode, the improvement comprising:
- a selectively actuatable signal generator connected to said transceiver for generating one of a plurality of distinct signals of different frequency for transmitting a signal of one frequency to another walkie-talkie when in a transmitting mode and generating a signal of another frequency from the speaker when in a receiving mode;
- and
- a hand manipulatable actuator to selectively actuate said signal generator for generating one of the frequencies.
Dependencies are inferred from the claim text.