发明名称 Boundary microphone
摘要 An object of the present invention is to provide an on-surface sound pickup microphone that is made wireless by eliminating the need for a cable for connection to a receiver. An on-surface sound pickup microphone 1 includes a flat microphone case 10 including a base portion 20 that has a flat bottom surface and a porous sound pickup cover 23 that covers a top surface of the base portion 20. The microphone case contains a microphone unit and a sound signal output circuit for the microphone. In the on-surface sound pickup microphone 1 has a battery housing portion 220 in which a battery as a power source is housed, and a light emitting portion 230 serving as transmission means for the sound signal output circuit to radiate infrared rays emitted by the infrared light emitting element, to the outside of the microphone; the light emitting portion 230 consists of, for example, a diffusion lens.
申请公布号 US2007009118(A1) 申请公布日期 2007.01.11
申请号 US20060480484 申请日期 2006.07.05
申请人 KABUSHIKI KAISHA AUDIO-TECHNICA 发明人 KIMURA MITSUO;HIGASHIJIMA SHINJI;ISHIDA HIROYUKI
分类号 H04R25/00 主分类号 H04R25/00
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