Mounting arrangement for a noise cancelling microphone

Details Mounting arrangement for a noise cancelling microphone Mounting arrangement for a noise cancelling microphone

H - Electricity

04

R

H04R 1/38 (2006.01) H04M 1/03 (2006.01) H04M 1/19 (2006.01) H04Q 7/32 (2006.01)

Patent

CA 2228657

A mounting arrangement for a handset, neckset and the like having a transmit and a receive end. A regular-shaped cavity is provided at the transmit end for receiving a higher order microphone capsule, having two or more poles. The capsule is symmetrically fixed with the geometrical center substantially corresponding with the geometrical center of the cavity. The transversal size of the capsule is less or equal to the depth of the cavity. In this way, the capsule is embedded into the cavity, and the cavity is covered with an acoustically transparent screen. There is space left between the poles of the microphone and the facing walls of the cavity for fooling the microphone that it is in free space.

L'invention concerne une configuration de montage pour microphone de combiné classique ou suspendu autour du cou et autre, ayant une extrémité d'émission et une extrémité de réception. L'extrémité d'émission comporte une cavité de forme régulière prévue pour une capsule de microphone à vitesse de rang supérieur, avec deux ou plus de deux pôles. La capsule est fixée symétrique de sorte que son centre géométrique corresponde sensiblement au centre géométrique de la cavité. La taille de la section transversale de la capsule est inférieure ou égale à la profondeur de la cavité. Ainsi, la capsule est encastrée dans la cavité, elle-même recouverte d'un écran transparent du point de vue acoustique. Un espace est ménagé entre les pôles du microphone et les faces de la cavité pour donner l'impression que le microphone est en espace libre.

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