发明名称 MODULAR MICROPHONE ASSEMBLY
摘要 A modular microphone assembly housed in a handsfree telephone apparatus provides an environment that is isolated from a loudspeaker installed within the apparatus and through which environment the directional and frequency response characteristics of a directional microphone capsule contained within a closable cavity of a microphone mounting receptacle in the assembly are altered via a predetermined internal surface configuration of the receptacle to improve the performance of the apparatus.
申请公布号 CA1297578(C) 申请公布日期 1992.03.17
申请号 CA19880559950 申请日期 1988.02.26
申请人 BELL-NORTHERN RESEARCH LTD. 发明人 POCOCK, MARK W.;BASNETT, BRADLEY P.;ELDERSHAW, MICHAEL K.;FATOVIC, PETER;GAGNON, JACQUES;GOLDMANN, NAHUM;LAFRANCE, CONRAD D.;LANGENBERG, ANTHONY J.;MCKEEN, WILBERT J.
分类号 H04R1/02;H04M1/02;H04M1/20;H04R1/08 主分类号 H04R1/02
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