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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0567165 (1983-12-30) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 6 인용 특허 : 2 |
A transducer rendered operative by a battery voltage source is mounted on and closely spaced from a sonic radiating surface by a sonic coupling body to which a housing is secured in enclosing relation to both the transducer and the battery source. Openings in the housing expose a volume control knob
In combination with an electrically powered condenser microphone, a power source rendering the microphone operative to generate an output signal in response to detection of sonic vibration of a radiating surface, and an elastomeric body removably mounted in contact with said surface holding the micr
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