HIGH NOISE IMMUNITY EMERGENCY RESONDER COMMUNICATION SYSTEM
First Claim
Patent Images
1. A high noise immunity communications system for emergency responder voice communications, comprising:
- a first spread spectrum emergency responder communications device (SSERCD) mounted in or on a mask or helmet worn by an emergency responder, the first SSERCD comprising;
a microphone to receive an audible input from the emergency responder and to provide an outgoing analog audio signal,an analog to digital (A/D) converter receiving the outgoing analog audio signal and providing outgoing digital audio data,a processor system packetizing the outgoing digital audio data and assembling incoming digital audio data packets,a near field spread spectrum data modem modulating and transmitting outgoing digital audio data packets and receiving and demodulating incoming digital audio data packets according to a spreading code from the processor system,a conversion circuit for converting incoming digital audio data to provide an incoming analog audio signal, anda speaker to receive the incoming analog audio signal and provide an audible output to the emergency responder; and
a second SSERCD mounted in or on clothing or a uniform worn by the emergency responder, the second SSERCD comprising;
a first push-to-talk (PTT) button providing a first talk signal when activated by the emergency responder,a second near field spread spectrum data modem operative according to at least one spreading code to modulate and transmit digital audio data packets to the first SSERCD and to receive and demodulate digital audio data packets received from the first SSERDC, anda second processor system operatively coupled with the first PTT button to receive the first talk signal and with the second data modem to packetize the digital audio data for transmission by the second data modem and to assemble digital audio data packets received by the second data modem, the second processor system operative to packetize and transmit assembled digital audio data packets to a near field spread spectrum data modem not associated with the emergency responder via the second data modem when the first PTT button is activated.
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Abstract
High noise immunity communication systems are provided for voice communications among emergency responders, in which first and second wireless devices employ near field spread spectrum data modems to transfer digital audio data between a responder mask or helmet and a secondary device affixed to the responder'"'"'s clothing or uniform to allow the responder to broadcast messages to other responders and to hear broadcasts from other responders.
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Citations
20 Claims
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1. A high noise immunity communications system for emergency responder voice communications, comprising:
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a first spread spectrum emergency responder communications device (SSERCD) mounted in or on a mask or helmet worn by an emergency responder, the first SSERCD comprising; a microphone to receive an audible input from the emergency responder and to provide an outgoing analog audio signal, an analog to digital (A/D) converter receiving the outgoing analog audio signal and providing outgoing digital audio data, a processor system packetizing the outgoing digital audio data and assembling incoming digital audio data packets, a near field spread spectrum data modem modulating and transmitting outgoing digital audio data packets and receiving and demodulating incoming digital audio data packets according to a spreading code from the processor system, a conversion circuit for converting incoming digital audio data to provide an incoming analog audio signal, and a speaker to receive the incoming analog audio signal and provide an audible output to the emergency responder; and a second SSERCD mounted in or on clothing or a uniform worn by the emergency responder, the second SSERCD comprising; a first push-to-talk (PTT) button providing a first talk signal when activated by the emergency responder, a second near field spread spectrum data modem operative according to at least one spreading code to modulate and transmit digital audio data packets to the first SSERCD and to receive and demodulate digital audio data packets received from the first SSERDC, and a second processor system operatively coupled with the first PTT button to receive the first talk signal and with the second data modem to packetize the digital audio data for transmission by the second data modem and to assemble digital audio data packets received by the second data modem, the second processor system operative to packetize and transmit assembled digital audio data packets to a near field spread spectrum data modem not associated with the emergency responder via the second data modem when the first PTT button is activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mask or helmet mounted spread spectrum emergency responder communications device (SSERCD) for emergency responder voice communications, comprising:
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a microphone to receive an audible input from the emergency responder and to provide an outgoing analog audio signal; an analog to digital (A/D) converter receiving the outgoing analog audio signal and providing outgoing digital audio data; a processor system packetizing the outgoing digital audio data and assembling incoming digital audio data packets; a near field spread spectrum data modem modulating and transmitting outgoing digital audio data packets and receiving and demodulating incoming digital audio data packets according to a spreading code from the processor system; a conversion circuit for converting incoming digital audio data to provide an incoming analog audio signal; and a speaker to receive the incoming analog audio signal and provide an audible output to the emergency responder. - View Dependent Claims (12, 13, 14)
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15. A clothing or uniform mounted spread spectrum emergency responder communications device (SSERCD) for emergency responder voice communications, comprising:
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an audio interface operative to send and receive analog audio signals to a separate communications device via a cable; a first push-to-talk (PTT) button providing a first talk signal when activated by the emergency responder; a second PTT button providing a second talk signal to the processor system when activated by the emergency responder, a near field spread spectrum data modem operative according to at least one spreading code to modulate and transmit digital audio data packets and to receive and demodulate digital audio data packets; a processor system operatively coupled with the first PTT button to receive the first talk signal and with the data modem to packetize the digital audio data for transmission by the data modem and to assemble digital audio data packets received by the data modem, the processor system operative to packetize and transmit assembled digital audio data packets to a near field spread spectrum data modem not associated with the emergency responder via the data modem when the first PTT button is activated. an A/D converter converting an analog audio signal received at the audio interface to digital audio data, wherein the processor system is operative to packetize the digital audio data from the A/D converter for transmission via the data modem when neither of the PTT buttons are activated; and a conversion circuit converting assembled digital audio data from the processor system providing an analog audio signal to the audio interface when the second PTT button is activated. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification