| 摘要 |
The present invention relates to a transceiver device for short-distance voice communication in a disturbed sound medium, the transmission path being devoid of any obstruction, this device comprising a microphone 3, a transmitter circuit 4, 5, 6, a receiver circuit 8, 9, 11, 12 and one or more loudspeakers 10. According to the invention, the transmitter and receiver circuits respectively comprise means of transmission 6 and of reception 8 of a modulated signal corresponding to speech, with a carrier frequency lying between the infrared and ultraviolet frequencies. <IMAGE>
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