[특허]Telephone network speech signal enhancement

Telephone network speech signal enhancement 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04M-001/76
출원번호	US-0620997 (1990-12-03)
발명자 / 주소	Bowker Duane O. (Neptune City) Ganley John T. (Milford) James J. H. (Farmingdale NJ)
출원인 / 주소	AT&T Bell Laboratories (Murray Hill NJ 02)
인용정보	피인용 횟수 : 34 인용 특허 : 0

초록 ▼

The quality of voice signals transmitted by a telephone station set, or similar device, are enhanced in accordance with the steps of the instant method before such signals are delivered to a receiving telephone station set by restoring the level of speech energy attenuated by the transmitting set, in which such restoration is performed at a point along a telephone connection between the transmitting and receiving telephone stations, for example, at a point within a telecommunications system which establishes the connection.

대표청구항 ▼

A method of enhancing the quality of speech signals exchanged between first and second telephone station sets, said method comprising the steps of responding to receipt of a request originated by either one of said first or second telephone station sets, wherein at least one of said first and second telephone station sets is arranged to attenuate by a predetermined attenuation rate those of said speech signals having frequencies below a predetermined frequency and to transmit said speech signals over said communications path, and responding to receipt of said speech signals transmitted by said one of said first and second telephone station sets by selectively increasing the amplitude level of said attenuated speech signals and then supplying to the other one of said first and second telephone sets via said communication path the resulting speech signals.

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Lee Begeja ; Carroll W. Creswell ; Daniel Selig Furman ; Michael Joseph Haller ; John A. McMaster ; John C. Songrady ; Thomas Wasilewski ; Donald Joseph Youtkus, Flash-cut of speech processing features in a telephone call.
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Begeja Lee ; Creswell Carroll W. ; Furman Daniel Selig ; Haller Michael Joseph ; McMaster John A. ; Songrady John C. ; Wasilewski Thomas ; Youtkus Donald Joseph, Method and apparatus for applying multiple speech processing features to a telephone call.
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Sih Gilbert C. (San Diego CA), Method and apparatus for canceling echo accounting for delay variations.
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Ash Gerald Richard ; Chen Jiayu ; Deora Sanjeev K. ; Lee Young, Method for selectively routing enhanced calls.
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Rabipour Rafi (Cote St. Luc CAX) Iyengar Vasu (Whitehall PA), Methods and apparatus for estimating and adjusting the frequency response of telecommunications channels.
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Goluch John C. ; Simanonis Christopher F. ; Wagner George G. ; Ziermann Mark S., Signal processing unit for network interface unit.
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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

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Telephone network speech signal enhancement 원문보기

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Telephone network speech signal enhancement 원문보기

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이 특허를 인용한 특허 (34)

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