KR20050095903A - 텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치 - Google Patents
텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치 Download PDFInfo
- Publication number
- KR20050095903A KR20050095903A KR1020057016774A KR20057016774A KR20050095903A KR 20050095903 A KR20050095903 A KR 20050095903A KR 1020057016774 A KR1020057016774 A KR 1020057016774A KR 20057016774 A KR20057016774 A KR 20057016774A KR 20050095903 A KR20050095903 A KR 20050095903A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- antenna
- television
- loop
- multipath
- Prior art date
Links
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)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Noise Elimination (AREA)
- Picture Signal Circuits (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
Claims (5)
- 원형 패턴으로 배열된 복수의 도전성 스트립들로서, 각각의 스트립은 적어도 하나의 좁은 부분을 포함하는 것인, 상기 복수의 도전성 스트립들과;상기 각각의 스트립의 적어도 하나의 좁은 부분들에 의해 규정된 간극을 포함하는 급전점(feed point)과;상기 급전점에 근접하여 상기 복수의 도전성 스트립들로부터의 신호들을 연결하기(coupling) 위한 신호 연결기(coupler)를 포함하는 루프 안테나.
- 제1항에 있어서, 상기 신호 연결기는 제1 도전성 스트립에 연결된 차폐선(shield)과, 상기 간극에 가설되고 제2 도전성 스트립 상에 형성된 더미 동축 케이블에 연결된 중심 도전체를 구비한 동축 케이블을 포함하는 것인 루프 안테나.
- 제1항에 있어서, 상기 신호 연결기는 임피던스 정합 변압기를 포함하는 것인 루프 안테나.
- 제1항에 있어서, 상기 복수의 도전성 스트립들은 원형 기판 상에 형성되는 것인 루프 안테나.
- 제1항에 있어서, 상기 복수의 도전성 스트립들 내의 상기 도전성 스트립들 각각은 비발디 안테나 소자(Vivaldi antenna element)를 형성하는 것인 루프 안테나.
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 true KR20050095903A (ko) | 2005-10-04 |
KR100742172B1 KR100742172B1 (ko) | 2007-07-25 |
Family
ID=22544757
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020057016774A KR100742172B1 (ko) | 1999-09-08 | 2000-09-08 | 텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치 |
KR1020027003094A KR20020033788A (ko) | 1999-09-08 | 2000-09-08 | 텔레비전 신호에서 다중 경로 왜곡을 저감하기 위한 방법및 장치 |
Family Applications After (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 (ko) |
JP (1) | JP2003513486A (ko) |
KR (2) | KR100742172B1 (ko) |
CN (2) | CN1734837A (ko) |
AU (1) | AU7361600A (ko) |
DE (1) | DE60043312D1 (ko) |
MX (1) | MXPA02002405A (ko) |
WO (1) | WO2001019075A2 (ko) |
Families Citing this family (8)
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)
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 |
US4338606A (en) * | 1978-12-21 | 1982-07-06 | Sony Corporation | Antenna system with variable directivity |
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 |
CA2211619C (en) * | 1995-11-29 | 2002-01-29 | Ntt Mobile Communications Network Inc. | Diversity receiver and its control method |
-
2000
- 2000-09-08 KR KR1020057016774A patent/KR100742172B1/ko active IP Right Grant
- 2000-09-08 DE DE60043312T patent/DE60043312D1/de not_active Expired - Lifetime
- 2000-09-08 CN CN 200510097624 patent/CN1734837A/zh active Pending
- 2000-09-08 MX MXPA02002405A patent/MXPA02002405A/es active IP Right Grant
- 2000-09-08 WO PCT/US2000/024708 patent/WO2001019075A2/en not_active Application Discontinuation
- 2000-09-08 CN CN 00812511 patent/CN1249989C/zh not_active Expired - Lifetime
- 2000-09-08 AU AU73616/00A patent/AU7361600A/en not_active Abandoned
- 2000-09-08 KR KR1020027003094A patent/KR20020033788A/ko not_active Application Discontinuation
- 2000-09-08 JP JP2001522761A patent/JP2003513486A/ja active Pending
- 2000-09-08 EP EP00961698A patent/EP1219109A2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
JP2003513486A (ja) | 2003-04-08 |
EP1219109A2 (en) | 2002-07-03 |
CN1249989C (zh) | 2006-04-05 |
KR20020033788A (ko) | 2002-05-07 |
CN1399843A (zh) | 2003-02-26 |
AU7361600A (en) | 2001-04-10 |
WO2001019075A2 (en) | 2001-03-15 |
DE60043312D1 (de) | 2009-12-24 |
MXPA02002405A (es) | 2002-08-28 |
WO2001019075A3 (en) | 2001-09-20 |
CN1734837A (zh) | 2006-02-15 |
KR100742172B1 (ko) | 2007-07-25 |
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 | |
KR100478061B1 (ko) | 폴디드보우타이안테나 | |
US7439918B2 (en) | Adaptive antenna apparatus including adaptive controller for adaptive controlling at least two antenna elements | |
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 | |
US20070063909A1 (en) | Antenna | |
US20060166719A1 (en) | Mobile device multi-antenna system | |
CA2255516A1 (en) | Multiport antenna and method of processing multipath signals received by a multiport 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 (en) | Multi-element loop antenna | |
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 | |
CN101673879A (zh) | 一种基于分集技术的电视接收天线系统 | |
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 | |
KR20000062803A (ko) | 무선주파수 수신 안테나 시스템 | |
JP4221256B2 (ja) | 信号合成器 | |
KR100527077B1 (ko) | 광대역 송수신 안테나 및 접힌 테이퍼드 슬롯 안테나 | |
JP2005160061A (ja) | アダプティブアンテナ装置 | |
JP4167532B2 (ja) | アンテナ装置 | |
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 | |
WO2005041566A2 (en) | A diversity controller for a video receiver |
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 |