发明授权
- 专利标题： Adjustable microphone boom with acoustic valve
- 专利标题（中）： 可调麦克风扬声器带声阀
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申请号： US09999049申请日： 2001-11-15
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公开(公告)号： US06768804B1公开(公告)日： 2004-07-27
- 发明人: Osman K. Isvan
- 申请人： Osman K. Isvan
- 主分类号： H04R2500
- IPC分类号： H04R2500
摘要：
A sound sensing apparatus such as a communication headset uses a microphone and an acoustic valve controlled by a movable boom to operate in at least a compact and an extended-boom mode, with the valve variously coupling the microphone to different openings on the boom or the main body functioning as the acoustic sensing point.
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