[특허]Active noise control rack enclosures

Active noise control rack enclosures 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G10K-011/16
출원번호	US-0432754 (2006-05-10)
발명자 / 주소	Ong, Brett Cheong-Wei Gross, Kenneth Clayton Osborn, Jay Kevin
출원인 / 주소	Oracle America, Inc.
대리인 / 주소	Martine Penilla & Gencarella, LLP
인용정보	피인용 횟수 : 28 인용 특허 : 0

초록 ▼

Provided is an apparatus and method to control fan noise in a computer server room. An exemplary apparatus includes one or more transducers coupled to one or more walls of a plurality of system racks and one or more active noise control units, wherein the one or more active noise control units send control signals to the one or more transducers to emit a transducer acoustic wave. It also includes a microphone installed near a location in the computer server room where cooling fan noise needs to be controlled, wherein the microphone collects fan noise signals emitted from running fans on the plurality of system racks in the computer server room and sends the collected fan noise signals to the one or more active noise control units to allow the frequency and intensity of the transducer acoustic wave to be substantially equal to a frequency and an intensity of the fan noise and at about 180 degrees out of phase with the fan noise to reduce or to eliminate the fan noise.

대표청구항 ▼

What is claimed is: 1. A computer server room with a controlled cooling fan noise, comprising:one or more system racks, wherein the one or more system racks have a plurality of systems and a plurality of cooling fans to cool the plurality of systems, the cooling fans emit fan noise while running; andone or more transducers coupled to one or more walls of the one or more system racks, the coupling configured to enable the one or more walls to function as diaphragms for the one or more transducers;at least one microphone installed near a location where fan noise needs to be controlled; andone or more active noise control units, wherein the at least one microphone collects fan noise signals and then sends the collected signals to the one or more active noise control units, the one or more active noise control units send control signals to at least one of the one or more transducers to emit transducer acoustic waves to reduce or to eliminate the fan noise;wherein the one or more active noise control units send control signals to the at least one transducer to emit transducer acoustic waves at about 180 degrees out of phase with the fan noise and at an intensity and a frequency substantially equal to the fan noise;wherein each of the one or more transducers comprises a fan identification and speed detector that determines which fan is running and at what speed, a room sound detector to detect the sound signals received by the microphone, and a transducer controller to issue control signals to the one or more transducers;wherein the transducer controller comprises a component location sensor, a transducer location identifier, an intensity setting unit, and a phase and frequency setting unit, wherein the component location sensor communicates the locations and status of components on the system racks to the transducer location identifier, the transducer location identifier selects which transducers need to be activated based on the locations and status of components and communicates which transducers have been selected to the intensity setting unit and the phase and frequency setting unit, the intensity setting unit, and the phase and frequency setting unit receive fan noise signals from the microphone and which transducers have been selected from the transducer location identifier, send controlling signals to the selected transducers to emit acoustic waves to reduce or to eliminate fan noise.

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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

Active noise control rack enclosures 원문보기

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Active noise control rack enclosures 원문보기

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이 특허를 인용한 특허 (28)

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