System for transmitting two-way radio communications via computer networks
First Claim
Patent Images
1. A circuit for connecting a radio frequency transceiver to a computer, comprisinga first interface for connection to transmit, receive and control terminals of a radio frequency transceiver;
- a second interface connected to said first interface for connecting a transmit terminal of the radio frequency transceiver to an audio output terminal of a computer, and connecting a receive terminal of the radio frequency transceiver to an audio input terminal of the computer;
a third interface connected to said first interface for connecting a control terminal of the radio frequency transceiver to a serial port of the computer; and
a switching circuit for selectively providing a voltage signal to said control terminal of said radio frequency transceiver to, when said third interface receives a control signal from said serial port of the computer, activate and control said transmit terminal of said radio frequency transceiver to transmit an audio signal received from said computer to at least one other radio frequency transceiver.
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Accused Products
Abstract
A circuit for connecting radio frequency transceivers and cellular radio systems to a computer for improving the efficiency and distance of two-way radio communications devices. A device for connecting radio frequency transceivers and cellular radio systems to a computer for improving the efficiency and distance of two-way radio communications devices. A method for connecting radio frequency transceivers and cellular radio systems to a computer for improving the efficiency and distance of two-way radio communications devices.
15 Citations
9 Claims
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1. A circuit for connecting a radio frequency transceiver to a computer, comprising
a first interface for connection to transmit, receive and control terminals of a radio frequency transceiver; -
a second interface connected to said first interface for connecting a transmit terminal of the radio frequency transceiver to an audio output terminal of a computer, and connecting a receive terminal of the radio frequency transceiver to an audio input terminal of the computer; a third interface connected to said first interface for connecting a control terminal of the radio frequency transceiver to a serial port of the computer; and a switching circuit for selectively providing a voltage signal to said control terminal of said radio frequency transceiver to, when said third interface receives a control signal from said serial port of the computer, activate and control said transmit terminal of said radio frequency transceiver to transmit an audio signal received from said computer to at least one other radio frequency transceiver. - View Dependent Claims (2, 3, 4)
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5. A two-way radio communication system, comprising:
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a radio frequency transceiver capable of two-way radio frequency communications with other radio frequency transceivers, said radio frequency transceiver having a control terminal, a receive terminal and a transmit terminal; a computer connected to a computer network for communication with other computers on said network; and an interface circuit connecting said radio frequency transceiver to said computer to exchange audio signals between said radio frequency transceiver and said computer, and to selectively provide a voltage signal to said control terminal of said radio frequency transceiver to, when said interface circuit receives an audio signal from said computer, activate and control said transmit terminal of said radio frequency transceiver to transmit the audio signal received from said computer to at least one of the other radio frequency transceivers. - View Dependent Claims (6, 7, 8, 9)
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Specification