CN1734837A - 用于减少电视信号中的多径失真的方法和设备 - Google Patents

用于减少电视信号中的多径失真的方法和设备 Download PDF

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Publication number
CN1734837A
CN1734837A CN 200510097624 CN200510097624A CN1734837A CN 1734837 A CN1734837 A CN 1734837A CN 200510097624 CN200510097624 CN 200510097624 CN 200510097624 A CN200510097624 A CN 200510097624A CN 1734837 A CN1734837 A CN 1734837A
Authority
CN
China
Prior art keywords
signal
antenna
multipath
accompanying
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 200510097624
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English (en)
Chinese (zh)
Inventor
T·H·B·克拉诺
E·A·哈尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomson Licensing SAS
RCA Licensing Corp
Original Assignee
RCA Licensing Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RCA Licensing Corp filed Critical RCA Licensing Corp
Publication of CN1734837A publication Critical patent/CN1734837A/zh
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/265—Open ring dipoles; Circular dipoles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
    • H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Noise Elimination (AREA)
  • Picture Signal Circuits (AREA)
  • Radio Relay Systems (AREA)
CN 200510097624 1999-09-08 2000-09-08 用于减少电视信号中的多径失真的方法和设备 Pending CN1734837A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15285999P 1999-09-08 1999-09-08
US60/152859 1999-09-08

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN 00812511 Division CN1249989C (zh) 1999-09-08 2000-09-08 用于减少电视信号中的多径失真的方法和设备

Publications (1)

Publication Number Publication Date
CN1734837A true CN1734837A (zh) 2006-02-15

Family

ID=22544757

Family Applications (2)

Application Number Title Priority Date Filing Date
CN 200510097624 Pending CN1734837A (zh) 1999-09-08 2000-09-08 用于减少电视信号中的多径失真的方法和设备
CN 00812511 Expired - Lifetime CN1249989C (zh) 1999-09-08 2000-09-08 用于减少电视信号中的多径失真的方法和设备

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN 00812511 Expired - Lifetime CN1249989C (zh) 1999-09-08 2000-09-08 用于减少电视信号中的多径失真的方法和设备

Country Status (8)

Country Link
EP (1) EP1219109A2 (et)
JP (1) JP2003513486A (et)
KR (2) KR100742172B1 (et)
CN (2) CN1734837A (et)
AU (1) AU7361600A (et)
DE (1) DE60043312D1 (et)
MX (1) MXPA02002405A (et)
WO (1) WO2001019075A2 (et)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7034893B2 (en) * 2001-03-30 2006-04-25 Broadcom Corporation Method and apparatus for reception of terrestrial digital television signals
DE10224536B4 (de) * 2002-05-31 2009-04-23 Harman Becker Automotive Systems (Xsys Division) Gmbh Verfahren und Schaltungsanordnung zum Mehrwegeempfang
KR100482286B1 (ko) 2002-09-27 2005-04-13 한국전자통신연구원 선택형 빔형성을 통해 수신성능을 개선하는 디지털 방송수신 장치
KR100500661B1 (ko) 2003-06-14 2005-07-12 한국전자통신연구원 디지털 ｔｖ 수신기의 최적 빔 선택 장치 및 그 방법
US7026989B1 (en) * 2004-01-23 2006-04-11 Itt Manufacturing Enterprises, Inc. Methods and apparatus for shaping antenna beam patterns of phased array antennas
KR100583240B1 (ko) * 2004-11-26 2006-05-25 한국전자통신연구원 디지털 방송 수신 성능 개선을 위한 최적의 빔 선택 방법및 그를 이용한 디지털 방송 수신 장치
US7714780B2 (en) * 2006-03-10 2010-05-11 Broadcom Corporation Beamforming RF circuit and applications thereof
CN104900990B (zh) * 2015-06-09 2019-04-23 联想(北京)有限公司 天线和包括该天线的电子设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5931241B2 (ja) * 1975-11-12 1984-08-01 松下電器産業株式会社 ゴ−ストジヨキヨソウチ
US4121219A (en) * 1976-04-12 1978-10-17 Connor Gerald O Dipole resonent loop antenna
JPS5585106A (en) * 1978-12-21 1980-06-26 Sony Corp Antenna unit
AU532289B2 (en) * 1978-12-21 1983-09-22 Sony Corporation Segmented loop antenna system
GB2089578B (en) * 1980-03-03 1984-10-10 Pioneer Electronic Corp Complex antenna system
JPS5913442A (ja) * 1982-07-14 1984-01-24 Nec Corp 信号分散最小型スペ−ス・ダイバ−シテイ−装置
JPS5913441A (ja) * 1982-07-14 1984-01-24 Nec Corp 干渉波消去型スペ−スダイバ−シテイ−装置
DE3427629A1 (de) * 1984-07-26 1986-01-30 Siemens AG, 1000 Berlin und 8000 München Ringantenne in gedruckter schaltungstechnik
JPH069342B2 (ja) * 1985-09-24 1994-02-02 日産自動車株式会社 アンテナ装置
JPS62100034A (ja) * 1985-10-26 1987-05-09 Toshiba Corp 妨害波除去装置の妨害周波数検出回路
GB2257605A (en) * 1991-07-12 1993-01-13 Paul Victor Brennan Diversity antenna system
JPH0879570A (ja) * 1994-09-09 1996-03-22 Hitachi Ltd テレビジョン受像機
WO1997020400A1 (fr) * 1995-11-29 1997-06-05 Ntt Mobile Communications Network Inc. Appareil de reception en diversite et procede de commande

Also Published As

Publication number Publication date
KR20020033788A (ko) 2002-05-07
KR100742172B1 (ko) 2007-07-25
WO2001019075A2 (en) 2001-03-15
JP2003513486A (ja) 2003-04-08
EP1219109A2 (en) 2002-07-03
DE60043312D1 (de) 2009-12-24
CN1249989C (zh) 2006-04-05
KR20050095903A (ko) 2005-10-04
WO2001019075A3 (en) 2001-09-20
AU7361600A (en) 2001-04-10
CN1399843A (zh) 2003-02-26
MXPA02002405A (es) 2002-08-28

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SE01 Entry into force of request for substantive examination
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Open date: 20060215