KR100742172B1 - 텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치 - Google Patents

텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치 Download PDF

Info

Publication number
KR100742172B1
KR100742172B1 KR1020057016774A KR20057016774A KR100742172B1 KR 100742172 B1 KR100742172 B1 KR 100742172B1 KR 1020057016774 A KR1020057016774 A KR 1020057016774A KR 20057016774 A KR20057016774 A KR 20057016774A KR 100742172 B1 KR100742172 B1 KR 100742172B1
Authority
KR
South Korea
Prior art keywords
signal
antenna
television
loop
multipath
Prior art date
Application number
KR1020057016774A
Other languages
English (en)
Korean (ko)
Other versions
KR20050095903A (ko
Inventor
토마스 하워드 브루스 크라노
애드워드 알렌 홀
Original Assignee
톰슨 라이센싱
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 톰슨 라이센싱 filed Critical 톰슨 라이센싱
Publication of KR20050095903A publication Critical patent/KR20050095903A/ko
Application granted granted Critical
Publication of KR100742172B1 publication Critical patent/KR100742172B1/ko

Links

Images

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)
KR1020057016774A 1999-09-08 2000-09-08 텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치 KR100742172B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15285999P 1999-09-08 1999-09-08
US60/152,859 1999-09-08

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
KR1020027003094A Division KR20020033788A (ko) 1999-09-08 2000-09-08 텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치

Publications (2)

Publication Number Publication Date
KR20050095903A KR20050095903A (ko) 2005-10-04
KR100742172B1 true KR100742172B1 (ko) 2007-07-25

Family

ID=22544757

Family Applications (2)

Application Number Title Priority Date Filing Date
KR1020027003094A KR20020033788A (ko) 1999-09-08 2000-09-08 텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치
KR1020057016774A KR100742172B1 (ko) 1999-09-08 2000-09-08 텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치

Family Applications Before (1)

Application Number Title Priority Date Filing Date
KR1020027003094A KR20020033788A (ko) 1999-09-08 2000-09-08 텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치

Country Status (8)

Country Link
EP (1) EP1219109A2 (de)
JP (1) JP2003513486A (de)
KR (2) KR20020033788A (de)
CN (2) CN1249989C (de)
AU (1) AU7361600A (de)
DE (1) DE60043312D1 (de)
MX (1) MXPA02002405A (de)
WO (1) WO2001019075A2 (de)

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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100496A (en) * 1975-11-12 1978-07-11 Matsushita Electric Industrial Co., Ltd. Ghost cancellation device
US4338606A (en) * 1978-12-21 1982-07-06 Sony Corporation Antenna system with variable directivity
KR19980701743A (ko) * 1995-11-29 1998-06-25 구라모토 미노루 다이버시티 수신기 및 그 제어 방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4397041A (en) * 1980-03-03 1983-08-02 Pioneer Electronic Corporation Complex antenna system and FM/AM receiver
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100496A (en) * 1975-11-12 1978-07-11 Matsushita Electric Industrial Co., Ltd. Ghost cancellation device
US4338606A (en) * 1978-12-21 1982-07-06 Sony Corporation Antenna system with variable directivity
KR19980701743A (ko) * 1995-11-29 1998-06-25 구라모토 미노루 다이버시티 수신기 및 그 제어 방법

Also Published As

Publication number Publication date
AU7361600A (en) 2001-04-10
EP1219109A2 (de) 2002-07-03
CN1399843A (zh) 2003-02-26
WO2001019075A2 (en) 2001-03-15
MXPA02002405A (es) 2002-08-28
CN1249989C (zh) 2006-04-05
CN1734837A (zh) 2006-02-15
JP2003513486A (ja) 2003-04-08
KR20050095903A (ko) 2005-10-04
DE60043312D1 (de) 2009-12-24
WO2001019075A3 (en) 2001-09-20
KR20020033788A (ko) 2002-05-07

Similar Documents

Publication Publication Date Title
US6933907B2 (en) Variable directivity antenna and variable directivity antenna system using such antennas
US6911947B1 (en) Method and apparatus for reducing multipath distortion in a television signal
US7486249B2 (en) Antenna
KR100478061B1 (ko) 폴디드보우타이안테나
AU713294B2 (en) Multi-function interactive communications system with circularly/elliptically polarized signal transmission and reception
US8200302B2 (en) Mobile wireless communication apparatus having a plurality of antenna elements
US7439918B2 (en) Adaptive antenna apparatus including adaptive controller for adaptive controlling at least two antenna elements
US20060166719A1 (en) Mobile device multi-antenna system
CA2255516A1 (en) Multiport antenna and method of processing multipath signals received by a multiport antenna
US6466178B1 (en) Small-size unidirectional antenna
JPH09321526A (ja) アダプティブアレーアンテナ
KR100742172B1 (ko) 텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치
EP1345419B1 (de) Mehrelemente-Schleifenantenne
US6914558B1 (en) Variable directivity antenna apparatus and receiver system using such antenna apparatus
US4380011A (en) Loop antenna arrangement for inclusion in a television receiver
US5894287A (en) Polarization diversity device for reducing fading effect
KR20000062803A (ko) 무선주파수 수신 안테나 시스템
JP4221256B2 (ja) 信号合成器
JP2008060907A (ja) アダプティブアンテナ装置及び無線通信装置
US6281857B1 (en) Dipole UHF antenna
US7808431B2 (en) Antenna apparatus capable of directivity control
JP2005160061A (ja) アダプティブアンテナ装置
JP4167532B2 (ja) アンテナ装置
WO2005041566A2 (en) A diversity controller for a video receiver
JPH11317609A (ja) 垂直偏波用受信アンテナおよびこのアンテナを有する受信機

Legal Events

Date Code Title Description
A107 Divisional application of patent
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
G170 Publication of correction
FPAY Annual fee payment

Payment date: 20130618

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20140630

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20150619

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20160616

Year of fee payment: 10

FPAY Annual fee payment

Payment date: 20170616

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20190716

Year of fee payment: 13