System for transmitting two-way radio communications via computer networks

• US 20070287499A1
• Filed: 05/08/2007
• Published: 12/13/2007
• Est. Priority Date: 05/08/2006
• Status: Active Grant

• Current Assignee: Critical RF Incorporated, Stephen Calabrese
• Original Assignee: Critical RF Incorporated
• Inventors: Calabrese, Stephen
• Granted Patent: US 7,929,992 B2
• Time in Patent Office: Days
• US Class Current: 455/557
• CPC Class Codes: H04W 84/02 Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
• CPC Class Codes: H04W 88/02 Terminal devices

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.

Claims

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; and

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.

2. The circuit of claim 1 further including a switching circuit for selectively providing a voltage signal to the control terminal of the radio frequency transceiver in response to a signal received at said third interface via the serial port of the computer.

3. The circuit of claim 2, wherein said third interface includes a filter circuit for regulating the voltage of said signal.

4. The circuit of claim 1, wherein said third circuit includes an indicator that is connected to a communications reception terminal of the radio frequency transceiver via said first interface.

5. A two-way radio communication system, comprising:

a radio frequency transceiver capable of two-way radio frequency communications with other radio frequency transceivers;

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.

6. The communication system of claim 5, wherein said computer converts said audio signals into audio data packets for communication over said network.

7. The communications system of claim 6, wherein said computer communicates over said network by means of an IP protocol.

8. The communications system of claim 6, wherein said interface circuit comprises:

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; and

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.