BR9815768A - Sistema de difusão digital usando satélite diretode difusão e repetidora terrestre - Google Patents

Sistema de difusão digital usando satélite diretode difusão e repetidora terrestre

Info

Publication number
BR9815768A
BR9815768A BR9815768-0A BR9815768A BR9815768A BR 9815768 A BR9815768 A BR 9815768A BR 9815768 A BR9815768 A BR 9815768A BR 9815768 A BR9815768 A BR 9815768A
Authority
BR
Brazil
Prior art keywords
terrestrial
areas
satellite
broadcasting system
terrestrial repeater
Prior art date
Application number
BR9815768-0A
Other languages
English (en)
Inventor
S Joseph Campanella
Original Assignee
Worldspace Man 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 Worldspace Man Corp filed Critical Worldspace Man Corp
Priority claimed from PCT/US1998/014280 external-priority patent/WO1999049602A1/en
Publication of BR9815768A publication Critical patent/BR9815768A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
    • 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
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/71—Wireless systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/19—Aspects of broadcast communication characterised by the type of broadcast system digital satellite radio [DSR]

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radio Relay Systems (AREA)

Abstract

SISTEMA DE DIFUSãO DIGITAL USANDO SATéLITE DIRETO DE DIFUSãO E REPETIDORA TERRESTRE. é provido um sistema de difusão digital que usa um sistema de difusão de rádio direta por satélite tendo opções diferentes de modulação de ligação descendente em combinação com uma rede de repetidoras terrestres empregando opções diferentes de modulação de re-difusão para obter recepção de elevada disponibilidade pelos rádios móveis (14), rádios estáticos e rádios portáteis (14) em áreas urbanas, áreas metropolitanas suburbanas, e áreas rurais, incluindo áreas geograficamente abertas e áreas geográficas caracterizadas por grandes elevações de terreno. Receptores de dois braços e de três braços são providos cada um dos quais compreende uma arquitetura combinadas para receber sinais de satélite e sinais terrestres, e para combinação de probabilidade máxima de sinais recebidos para diversos fins. Uma repetidora terrestre é provida para reformatar um sinal de satélite TDM como um sinal terrestre modulado de multiportadora. Também são providas configurações para repetidoras terrestres internas e externas.
BR9815768-0A 1998-03-27 1998-07-10 Sistema de difusão digital usando satélite diretode difusão e repetidora terrestre BR9815768A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US7959198P 1998-03-27 1998-03-27
US5866398A 1998-04-10 1998-04-10
PCT/US1998/014280 WO1999049602A1 (en) 1998-03-27 1998-07-10 Digital broadcast system using satellite direct broadcast and terrestrial repeater

Publications (1)

Publication Number Publication Date
BR9815768A true BR9815768A (pt) 2001-11-20

Family

ID=26737885

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9815768-0A BR9815768A (pt) 1998-03-27 1998-07-10 Sistema de difusão digital usando satélite diretode difusão e repetidora terrestre

Country Status (15)

Country Link
EP (1) EP1072111A4 (pt)
JP (1) JP2002508623A (pt)
KR (1) KR20010042231A (pt)
CN (1) CN1178412C (pt)
AP (1) AP2000001925A0 (pt)
AU (1) AU8297998A (pt)
BR (1) BR9815768A (pt)
CA (1) CA2325026A1 (pt)
EA (1) EA002604B1 (pt)
ID (1) ID27313A (pt)
IL (1) IL138309A0 (pt)
OA (1) OA11532A (pt)
PL (1) PL343075A1 (pt)
TR (1) TR200002768T2 (pt)
TW (1) TW390066B (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100396651B1 (ko) * 1999-12-20 2003-09-02 엘지전자 주식회사 디지털 티브이 중계기를 이용한 지역 방송 서비스 방법
ES2311054T3 (es) * 2002-02-01 2009-02-01 Alcatel Lucent Sistema y metodo para el uso eficiente de frecuencias en un sistema hibrida multihaz de radiodifusion por satelite.
KR100608538B1 (ko) * 2004-06-29 2006-08-03 주식회사 케이티프리텔 위성 디엠비 서비스를 위한 분산 시스템, 마스터 장치, 광중계 장치 및 슬레이브 장치
KR101011537B1 (ko) * 2004-09-24 2011-01-27 주식회사 케이티 Ｏｆｄｍ-ｔｄｍ/ｔｄｍ-ｏｆｄｍ 변환 장치/방법과 그를이용한 지상국/갭필러의 신호 전송 장치/방법 및 위성디지털 멀티미디어 방송 서비스 방법
KR100718010B1 (ko) * 2005-07-14 2007-05-14 에스케이 텔레콤주식회사 디지털 멀티미디어 방송 시스템을 위한 갭필러
KR101623046B1 (ko) 2009-12-28 2016-05-20 삼성전자주식회사 방송 재전송 방법과 이를 이용한 방송 재전송 장치, 방송 출력 장치 및 방송 재전송 시스템
CN102122987B (zh) * 2011-03-15 2014-05-07 南京迈鼎信息技术有限公司 便携式卫星通信系统
DE102013004673A1 (de) * 2013-03-19 2014-09-25 Tesat-Spacecom Gmbh & Co.Kg Verfahren zum Betreiben eines Verstärkermoduls eines Satelliten
CN106559103B (zh) * 2016-12-08 2019-03-29 西安烽火电子科技有限责任公司 一种基于北斗授时的大规模跳频组网系统
CN106680840A (zh) * 2017-03-13 2017-05-17 北京中科众为技术有限公司 一种北斗定位模块抗电磁干扰方法及装置
US10700797B2 (en) 2017-07-07 2020-06-30 Nxp B.V. Signal processing using multiple sources
WO2019012638A1 (ja) * 2017-07-13 2019-01-17 三菱電機株式会社 送信局、受信局、制御局、データ伝送システムおよびデータ伝送システムの制御方法
CN111327353B (zh) * 2020-03-10 2022-04-08 航天恒星科技有限公司 支持超长距离传输的射频链路、设计方法及装置、存储介质

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506383A (en) * 1980-01-04 1985-03-19 Harris Corporation Method and apparatus for relaying signals between a ground station and a satellite using a ground relay station
US5483663A (en) * 1994-04-05 1996-01-09 Diversified Communication Engineering, Inc. System for providing local originating signals with direct broadcast satellite television signals
US5835487A (en) * 1995-12-08 1998-11-10 Worldspace International Network, Inc. Satellite direct radio broadcast system
US5864579A (en) * 1996-07-25 1999-01-26 Cd Radio Inc. Digital radio satellite and terrestrial ubiquitous broadcasting system using spread spectrum modulation

Also Published As

Publication number Publication date
ID27313A (id) 2001-03-22
EA002604B1 (ru) 2002-06-27
PL343075A1 (en) 2001-07-30
JP2002508623A (ja) 2002-03-19
AP2000001925A0 (en) 2000-09-30
TW390066B (en) 2000-05-11
EP1072111A1 (en) 2001-01-31
CA2325026A1 (en) 1999-09-30
OA11532A (en) 2004-05-07
EP1072111A4 (en) 2006-09-27
IL138309A0 (en) 2001-10-31
AU8297998A (en) 1999-10-18
CN1291385A (zh) 2001-04-11
EA200001005A1 (ru) 2001-04-23
KR20010042231A (ko) 2001-05-25
CN1178412C (zh) 2004-12-01
TR200002768T2 (tr) 2000-12-21

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Legal Events

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

Free format text: REFERENTE A 6,7 E 8A ANUIDADES

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: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1910 DE 14/08/2007.

B15K Others concerning applications: alteration of classification

Ipc: H04B 7/185 (2006.01), H04H 20/06 (2008.0