BR0318326A - aparelho e método de repetição de mesmo canal para serviço de difusão digital terrestre por televisão - Google Patents

aparelho e método de repetição de mesmo canal para serviço de difusão digital terrestre por televisão

Info

Publication number
BR0318326A
BR0318326A BRPI0318326-2A BR0318326A BR0318326A BR 0318326 A BR0318326 A BR 0318326A BR 0318326 A BR0318326 A BR 0318326A BR 0318326 A BR0318326 A BR 0318326A
Authority
BR
Brazil
Prior art keywords
signal
unit
frequency
converting
broadcast signal
Prior art date
Application number
BRPI0318326-2A
Other languages
English (en)
Inventor
Sung-Ik Park
Yong-Tae Lee
Seung-Won Kim
Soon-In Lee
Ho-Min Eum
Jae-Hyun Seo
Original Assignee
Eletronics And Telecomm Res In
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 Eletronics And Telecomm Res In filed Critical Eletronics And Telecomm Res In
Publication of BR0318326A publication Critical patent/BR0318326A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6112—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving terrestrial transmission, e.g. DVB-T
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/02—Arrangements for relaying broadcast information
    • H04H20/06—Arrangements for relaying broadcast information among broadcast stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • H04N5/40—Modulation circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Radio Relay Systems (AREA)
  • Details Of Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

"APARELHO E MéTODO DE REPETIçãO DE MESMO CANAL PARA SERVIçO DE DIFUSãO DIGITAL TERRESTRE POR TELEVISãO". Trata-se de um método e repetidor para um serviço de difusão digital terrestre por TV ATSC que são revelados. O repetidor de mesmo canal inclui: uma unidade de recepção para receber um sinal de difusão por Radiofreqüência (RF) a partir de um transmissor principal; uma unidade de conversão de freqüência de enlace descendente para converter o sinal de difusão RF recebido em um sinal de freqüência intermediária (IF) ; uma unidade de demodulação para converter o sinal IF convertido em um sinal de banda base; uma unidade de equalização para remover os sinais de ruído e com múltiplos caminhos gerados a partir do sinal de banda base convertido; uma unidade de modulação para converter o sinal de banda base em um sinal IF; uma unidade de conversão de freqüência de enlace ascendente para converter o sinal IF em um sinal de difusão RF; uma unidade de amplificação de alta potência para amplificar e repetir o sinal de difusão RF convertido; uma unidade de transmissão para transmitir o sinal de difusão RF emitido a partir da unidade de amplificação de alta potência; e uma unidade de sincronização de sinal para gerar a primeira freqüência de referência e gerar a segunda freqüência de referência baseado na primeira freqüência de referência de modo que os sinais de transmissão / recepção sejam sincronizados por freqüência e por fase.
BRPI0318326-2A 2003-05-20 2003-12-27 aparelho e método de repetição de mesmo canal para serviço de difusão digital terrestre por televisão BR0318326A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020030032007A KR100540171B1 (ko) 2003-05-20 2003-05-20 지상파 디지털 텔레비젼 방송신호를 위한 동일채널중계장치 및 그 방법
PCT/KR2003/002858 WO2004105391A1 (en) 2003-05-20 2003-12-27 On-channel repeating apparatus and method for terrestrial digital television broadcasting service

Publications (1)

Publication Number Publication Date
BR0318326A true BR0318326A (pt) 2006-07-11

Family

ID=36654914

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0318326-2A BR0318326A (pt) 2003-05-20 2003-12-27 aparelho e método de repetição de mesmo canal para serviço de difusão digital terrestre por televisão

Country Status (8)

Country Link
US (1) US7809048B2 (pt)
KR (1) KR100540171B1 (pt)
CN (1) CN100546370C (pt)
AU (1) AU2003285812A1 (pt)
BR (1) BR0318326A (pt)
CA (1) CA2454295C (pt)
MX (1) MXPA05012578A (pt)
WO (1) WO2004105391A1 (pt)

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MXPA06013059A (es) * 2004-05-12 2007-02-14 Korea Electronics Telecomm Aparato y metodo para sincronizacion de frecuencia correspondiente en un repetidor de canal activo.
KR100749678B1 (ko) * 2005-04-22 2007-08-16 주식회사 사라콤 지상파 ｄｍｂ의 동일채널 중계에 따른 송수신 채널간의간섭 제거 장치 및 방법, 이를 이용한 갭필러
US7844219B2 (en) 2005-04-25 2010-11-30 Electronics And Telecommunications Research Institute Apparatus and method of on-channel repeater
KR100878750B1 (ko) * 2005-09-23 2009-01-14 삼성전자주식회사 직교주파수 다중분할방식 네트워크에서 협력적중계를 위한혼종 포워딩 장치 및 방법
US7746815B2 (en) 2005-09-23 2010-06-29 Samsung Electronics Co., Ltd Hybrid forwarding apparatus and method for cooperative relaying in an OFDM network
WO2007043776A1 (en) * 2005-10-07 2007-04-19 Electronics And Telecommunications Research Institute Pre-equalization apparatus and method for reducing time delay in on-channel repeater
KR100778336B1 (ko) * 2005-10-07 2007-11-22 한국전자통신연구원 동일채널 중계기의 시간 지연을 줄이기 위한 전치등화 장치및 그 방법
US7877026B2 (en) * 2006-08-31 2011-01-25 Broadcom Corporation Radio frequency transmitter with on-chip photodiode array
US7697899B2 (en) * 2006-08-31 2010-04-13 Broadcom Corporation RFIC with on-chip acoustic transducer circuit
KR100973671B1 (ko) * 2006-11-29 2010-08-04 삼성전자주식회사 광대역 무선통신시스템에서 중계 장치 및 방법
KR100839579B1 (ko) 2006-12-05 2008-06-19 한국전자통신연구원 분산 중계 장치 및 그 방법
KR100805815B1 (ko) * 2006-12-08 2008-02-21 한국전자통신연구원 분산중계기의 주파수 일치 장치 및 그 방법
KR100873486B1 (ko) 2007-05-09 2008-12-15 한국전자통신연구원 동일채널 중계장치 및 그 방법
KR100896795B1 (ko) * 2007-11-21 2009-05-11 한국전자통신연구원 중계기 및 그의 신호 처리 방법과 그의 주파수 동기 변환방법
CN101188538B (zh) * 2007-12-25 2010-04-14 北京科技大学 一种车辆自组网干扰信号发生装置
US20110007784A1 (en) * 2008-02-18 2011-01-13 Osamu Nakamura Relay device, communication system, and communication method
KR101196258B1 (ko) * 2008-11-19 2012-11-05 한국전자통신연구원 방송 서비스 제공 장치와 그 방법 및 이를 위한 시스템
US8364076B2 (en) 2009-09-18 2013-01-29 Electronics And Telecommunications Research Institute Apparatus and method of feedback cancellation for radio signal
WO2011043544A2 (ko) * 2009-10-05 2011-04-14 한국전자통신연구원 지상파 디지털 텔레비전 방송의 부가 데이터 전송을 위한 중계 장치 및 그 방법
CN102523027A (zh) * 2011-12-27 2012-06-27 耿直 数字对讲中继传输方法及数字对讲中继设备
CN106877958A (zh) * 2017-01-09 2017-06-20 厦门神州鹰软件科技有限公司 一种射频无线广播系统
JP6971834B2 (ja) * 2017-12-26 2021-11-24 三菱マテリアル電子化成株式会社 黒色遮光膜形成用粉末及びその製造方法
CN108802695B (zh) * 2018-06-13 2020-09-01 中国电子科技集团公司第十三研究所 毫米波3d雷达系统及信号处理流程
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KR100471592B1 (ko) * 2002-07-09 2005-03-10 한국전자통신연구원 전치 등화 장치, 이를 이용한 ｖｓｂ 전송 시스템 및 그전송 방법
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Also Published As

Publication number Publication date
CA2454295A1 (en) 2004-11-20
KR100540171B1 (ko) 2006-01-10
CA2454295C (en) 2007-05-15
AU2003285812A1 (en) 2004-12-13
US20040237117A1 (en) 2004-11-25
WO2004105391A1 (en) 2004-12-02
MXPA05012578A (es) 2007-03-08
KR20040099878A (ko) 2004-12-02
US7809048B2 (en) 2010-10-05
CN100546370C (zh) 2009-09-30
CN1849822A (zh) 2006-10-18

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08G Application fees: restoration [chapter 8.7 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2343 DE 01-12-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.