G - Physics – 10 – K
Patent
G - Physics
10
K
G10K 11/178 (2006.01) H04R 3/00 (2006.01) H04R 3/02 (2006.01)
Patent
CA 2290486
The present invention teaches a system for improving the clarity of a voice spoken within an enclosed space. The system comprises a first microphone, positioned at a first location, for receiving the audible communication and for converting the audible communication at the first location into a first audio signal. The system also comprises a loudspeaker for receiving the first audio signal, and for converting the first audio signal into a first reproduced audible communication, the reproduced audible communication also being fed back and received by the first microphone and converted with the audible communication into the first audio signal. Moreover, the system comprises an acoustic echo cancellation system for determining the relationship between the received audible communication by the first microphone and the first audio signal comprising both the audible communication and the reproduced audible communication fed back to the first microphone, and for removing the first reproduced audible communication fed back to the first microphone from the first audio signal received by the loudspeaker.
La présente invention concerne un système destiné à améliorer la clarté d'une communication parlée à l'intérieur d'un espace fermé. Le système comprend un premier microphone installé à un premier emplacement pour recevoir la communication sonore et la convertir, audit premier emplacement, en un premier signal acoustique. Le système comprend également un haut-parleur pour recevoir le premier signal acoustique et le convertir en une première communication sonore reproduite, laquelle est également retournée au premier microphone qui la convertit avec la communication sonore dans le premier signal acoustique. Le système comprend en outre un compensateur d'écho acoustique qui détermine la relation entre la communication sonore reçue par le premier microphone et le premier signal acoustique incluant à la fois la communication sonore et la communication sonore reproduite retournée au premier microphone; d'autre part, le compensateur d'écho acoustique élimine du premier signal acoustique reçu par le haut-parleur la première communication sonore reproduite retournée au premier microphone.
Finn Alan M.
Rey Gonzalo J.
Finlayson & Singlehurst
Lear Automotive Dearborn Inc.
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