[특허]Information transmission system and method of operation

Information transmission system and method of operation 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04L-001/02
출원번호	US-0112256 (1993-08-26)
발명자 / 주소	Campana Jr. Thomas J. (Chicago IL)
출원인 / 주소	NTP Incorporated (Annandale VA 02)
인용정보	피인용 횟수 : 70 인용 특허 : 0

초록 ▼

A system and method for transmission of information subject to fading by using a RF carrier modulated with a subcarrier modulated with the information. The system has a processor for providing first and second encoded information streams each comprising the information to be transmitted with the second stream being delayed by a time delay interval with respect to the first stream which is equal to or greater than the fading interval. The first and second information streams are modulated on cycles of the subcarrier to produce first and second parallel information streams. At least one receiver having a detector receives and detects the transmitted first and second parallel information streams. At least one processor determines if faded information is present in the detected first and second parallel information streams. The at least one processor places an error marker within the detected first and second parallel information streams to mark each faded information unit and controls replacement of each error marker within at least one of the first and second parallel information streams with replacement bits within one of the first and second parallel information streams which were time offset at transmission by the time delay interval to produce error free transmitted information.

대표청구항 ▼

A transceiver for transmitting and receiving atmospherically transmitted information with the atmospherically received information being subject to atmospheric fading for a time interval and being modulated with a carrier modulated with a subcarrier with the subcarrier being modulated with identical first and second encoded information streams to produce first and second parallel information streams modulated on cycles of the subcarrier with the first parallel information stream containing the first encoded information stream and with the second parallel information stream containing the second encoded information stream with the parallel information streams being atmospherically transmitted with a time delay interval between the parallel information streams as modulated on the subcarrier which is equal to or greater than the time interval, the transceiver comprising: a detector for detecting the transmitted first and second parallel information streams; and at least one processor, responsive to the detected parallel streams, for determining if faded information is present in at least one of the detected first and second parallel information streams received by the transceiver, in response to determined faded information replacing the faded information caused by an atmospheric fade with replacement information from at least one of the first and second parallel information streams which is time offset at transmission from the faded information by the time delay interval and outputting error free atmospherically transmitted information including the replacement information; and wherein the at least one processor places an error marker within the detected first and second parallel information streams to mark each faded information unit within the faded information requiring replacement and controls replacement of each error marker within at least one of the first and second parallel information streams with replacement bits within one of the first and second parallel information streams which were time offset at transmission by the time delay interval to produce the error free atmospherically transmitted information.

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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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Information transmission system and method of operation 원문보기

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Information transmission system and method of operation 원문보기

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