发明名称 Mobile microphone-transmitter assembly
摘要 A mobile microphone-transmitter assembly is disclosed which comprises a microphone, a plurality of infrared light emitting devices, electrical apparatus connected between the microphone and the devices to energize the devices in response to inputs to the microphone and a mechanical structure for supporting the devices to produce a substantially omnidirectional, horizontal radiation pattern when the structure is worn by a user and the devices are energized.
申请公布号 US4224482(A) 申请公布日期 1980.09.23
申请号 US19780965076 申请日期 1978.11.30
申请人 BELL TELEPHONE LABORATORIES, INCORPORATED 发明人 LESE, GREGORY;LIEBLER, CHARLES F.;PATEL, DILIPKUMAR B.
分类号 H04M1/05;H04M1/737;(IPC1-7):H04M1/05 主分类号 H04M1/05
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