[특허]Noise cancellation headset

Noise cancellation headset 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-011/06 H04R-001/10 H04R-025/00 H04M-001/00
출원번호	US-0555990 (1990-07-20)
발명자 / 주소	Bourk Terrance R. (San Diego CA)
출원인 / 주소	Telex Communications, Inc. (Minneapolis MN 02)
인용정보	피인용 횟수 : 94 인용 특허 : 0

초록 ▼

A headset for acoustic reproduction of an electronic signal which electronic signal is representative of the summation of a desired audio signal and an anti-noise signal. The headset includes a headband, an earcup mounted to the headband, a driver mounted within the earcup which receives and acoustically reproduces the electronic signal, a directional microphone which detects and transduces the acoustical pressure within the earcup cavity, means for generating the anti-noise signal from the microphone signal, and a positioning member for mounting the microphone to the earcup in a position so that the microphone is acoustically coupled to the driver. The microphone is oriented so that its vented or open face is pointing towards the driver. If the driver is provided with an inner dome portion and an outer annulus portion the microphone is positioned by its attachment to a grille plate extending across the driver, the microphone being mounted to the grille plate on a side opposite the driver. The grille plate includes a plurality of apertures, at least one of which is positioned proximate the center of the driver with the microphone mounted across that aperture so that the microphone is acoustically coupled to the dome portion and acoustically isolated from the outer annulus portion.

대표청구항 ▼

A headset for acoustic reproduction of an electronic anti-noise signal, the headset comprising: a headband; a cup, mounted to the headband; a driver mounted within the cup, which receives and acoustically reproduces the electronic signal; a microphone, having a directional sensing surface which detects and transduces acoustic pressure within the cup to a corresponding microphone electrical signal; means for generating the anti-noise signal from the microphone signal; and portioning means for mounting the microphone to the cup and for centering the microphone over the driver with the directional sensing surface oriented substantially directly toward the driver the positioning means comprising a grille plate mounted to the cup across the driver, the microphone being mounted to the grille plate.

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Wurtz, Michael J., System and method for adaptive active noise reduction.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Noise cancellation headset 원문보기

초록 ▼

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연구과제 타임라인

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Noise cancellation headset 원문보기

초록 ▼

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연구과제 타임라인

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이 특허를 인용한 특허 (94)

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