[특허]Diversity reception having a plurality of antennas for use with moving vehicles

Diversity reception having a plurality of antennas for use with moving vehicles 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-017/02
출원번호	US-0710811 (1991-06-05)
우선권정보	JP-0152792 (1990-06-13)
발명자 / 주소	Ooyagi Kazuhiro (Yokohama JPX) Hotta Nobutaka (Fujisawa JPX) Shinkawa Keiro (Hiratsuka JPX)
출원인 / 주소	Hitachi, Ltd. (Tokyo JPX 03) Hitachi Video & Information Systems, Inc. (Yokohama JPX 03) Hitachi Automotive Engineering Co., Ltd. (Ibaraki JPX 03)
인용정보	피인용 횟수 : 22 인용 특허 : 0

초록 ▼

A diversity reception apparatus which has a plurality of antennas and in which one of the antennas having the best receiving condition is automatically selected and connected to a broadcasting signal receiver. The diversity reception apparatus has a feature in that after demodulated signals, obtained by the receiver respectively corresponding to the plurality of antennas, are converted into digital signals by an A/D converter, the best demodulated signal and the antenna corresponding thereto are selected by comparing the digital signals with each other, and that the width of a switch driving pulse from a switch driving pulse generator is made not more than 3 m

대표청구항 ▼

A method of removing audio distortion from a diversity reception apparatus having a plurality of receiving antennas, said method comprising the steps of: receiving an analog demodulated broadcasting signal from said receiving antennas into receiving means; converting said analog demodulated signal into a digital signal; selecting one of said plurality of receiving antennas; connecting said selected receiving antenna to said receiving means; generating a switch driving pulse; sequentially selecting each of said plurality of receiving antennas according to said generated switch driving pulse; comparing the digital signals with one another to thereby detect a receiving antenna corresponding to a demodulated signal of the highest level; and controlling said selection of a receiving of antenna of said plurality of receiving antennas such that a receiving antenna corresponding to said demodulated signal of the highest level is selected for a period of time during which said switch driving impulse is absent, while a receiving antenna corresponding to said switch drive impulse is selected for a period of time during said switch driving pulse is received by said control means, wherein a period of time for which one of said receiving antenna is selected in response to a corresponding switch drive impulse is no longer than three (3) microseconds.

이 특허를 인용한 특허 (22)

Waters, Deric Wayne; Pande, Tarkesh, Antenna selection for GNSS receivers.
상세보기
Joji Kane JP; Takasi Yosida JP; Noboru Nomura JP; Toyokazu Ikeda JP; Tosiro Sugiyama JP; Hideto Majima JP, Antenna unit and digital television receiver.
상세보기
Link,Hermann; Schradi,Stefan, Apparatus for selecting a receiver among a plurality of receivers in a diversity receiver system based upon automatic gain correction.
상세보기
Wilson, III,Robert E., Automatic antenna-switching apparatus and system.
상세보기
Masahiro Narita JP; Yasunori Akatsuka JP; Yasukazu Kamei JP, Base station for mobile communication system.
상세보기
Lee Rowland N., Diversity receiver for television.
상세보기
Kishigami Takaaki,JPX ; Mimura Masahiro,JPX ; Hasegawa Makoto,JPX ; Ushiyama Tadaaki,JPX ; Nakamura Masahiko,JPX ; Takagi Yoshinori,JPX, Diversity receiving apparatus for a mobile unit.
상세보기
Iwakuni,Kaoru, Diversity reception apparatus.
상세보기
Rudolph Georg,DEX ; Daginnus Michael,DEX ; Bosche Ralf,DEX, Frequency diversity system.
상세보기
Teichner,Detlef; Link,Hermann; W��hrle,Philipp, Multipath video reception system.
상세보기
Granata Gary ; Thompson James H., Multiple antenna detecting and selecting.
상세보기
Rezvani, Behrooz; Farrokhi, Farrokh; Goldsmith, Andrea, Multiple antenna receiver system and method.
상세보기
Goerke Thomas,GBX, Multiple service user terminal.
상세보기
Welles, II, Kenneth Brakeley; Grabb, Mark Lewis; Hershey, John Erik, Optimization of television reception by selecting among or combining multiple antenna inputs.
상세보기
Yunoki,Kazuyuki, Portable cellular phone having capability of receiving TV broadcast, and TV broadcast record setting system and method for same.
상세보기
Tada Ken-ichi,JPX, Quaternary FSK receiver and method of judging signals in quaternary FSK receiver.
상세보기
Kimoto, Seiichiro; Shigemori, Toshiaki; Nagase, Ayako; Fujita, Manabu; Matsui, Akira; Nakatsuchi, Kazutaka, Receiving apparatus, transmitting apparatus and transmitting/receiving system.
상세보기
Lindenmeier, Heinz; Lindenmeier, Stefan; Hopf, Jochen; Reiter, Leopold, Reception system having a switching arrangement for suppressing change-over interference in the case of antenna diversity.
상세보기
Li, Qinghua; Lin, Xintian E., Switching schemes for multiple antennas.
상세보기
Mantha, Ramesh; Castura, Jeffrey P., System and method for mitigating fading of a signal at a radio receiver.
상세보기
Mantha, Ramesh; Castura, Jeffrey P., System and method for mitigating fading of a signal at a radio receiver.
상세보기
Akira Nohara JP; Joji Kane JP; Noboru Nomura JP, Television receiver that detects electric field information from a received television signal and stabilizes a detected synchronizing signal according to the electric field information.
상세보기

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
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
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

Diversity reception having a plurality of antennas for use with moving vehicles 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (22)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Diversity reception having a plurality of antennas for use with moving vehicles 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (22)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트