Radio and public address accessory system with wireless interface
First Claim
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1. A communications system for a vehicle user, comprising:
- a portable transceiver which the vehicle user can easily carry on his or her person and a vehicle-mounted transceiver, wherein the portable transceiver is capable of communicating with the vehicle-mounted transceiver and wherein audio information contained in a transmission from the portable transceiver may be retransmitted by the vehicle-mounted transceiver either to a public address system or to a second vehicle-mounted transceiver.
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Abstract
A communications system for a vehicle user is provided. The system comprises a portable transceiver which the vehicle user can easily carry on his or her person and a vehicle-mounted transceiver. The portable transceiver is capable of communicating with the vehicle-mounted transceiver. Audio information contained in a transmission from the portable transceiver may be retransmitted by the vehicle-mounted transceiver either to a public address system or a second vehicle-mounted transceiver.
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Citations
22 Claims
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1. A communications system for a vehicle user, comprising:
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a portable transceiver which the vehicle user can easily carry on his or her person and a vehicle-mounted transceiver, wherein the portable transceiver is capable of communicating with the vehicle-mounted transceiver and wherein audio information contained in a transmission from the portable transceiver may be retransmitted by the vehicle-mounted transceiver either to a public address system or to a second vehicle-mounted transceiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of communicating with a vehicle user, comprising (a) by means of a first transceiver mounted on a vehicle used by the user, receiving a first radio signal containing audio information, (b) transforming the first radio signal to produce a second radio signal containing substantially the same audio information, (c) by means of a portable transceiver mounted on the user'"'"'s person, receiving the second radio signal and demodulating it to produce an audio signal, (d) energizing with the audio signal at least one speaker so that the user perceives audio information contained in the first radio signal, (e) capturing by means of a microphone additional audio information resulting from words said by the user, (f) by means of the portable transceiver, generating a third radio signal containing the audio information resulting from words said by the user, and (g) in response to the third radio signal, either playing the audio information in the third radio signal on a public address system, or transmitting that audio information in a fourth radio signal.
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21. A vehicle-mounted communications system, comprising:
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a first transceiver capable of exchanging information via radio signals with a portable transceiver which can be easily carried on a vehicle user'"'"'s person and capable of driving a public address system mounted on the vehicle, a second transceiver capable of exchanging information with the first transceiver and via radio signals with a central two-way radio communications system, wherein audio information in signals received by the second transceiver from the central two-way radio communications system can be relayed by the second transceiver via radio to the portable transceiver. - View Dependent Claims (22)
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Specification