JPS6366096B2 - - Google Patents

Info

Publication number
JPS6366096B2
JPS6366096B2 JP59271040A JP27104084A JPS6366096B2 JP S6366096 B2 JPS6366096 B2 JP S6366096B2 JP 59271040 A JP59271040 A JP 59271040A JP 27104084 A JP27104084 A JP 27104084A JP S6366096 B2 JPS6366096 B2 JP S6366096B2
Authority
JP
Japan
Prior art keywords
channel
narrowband
channels
bandwidth
beams
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.)
Expired
Application number
JP59271040A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61148926A (ja
Inventor
Yasuhiko Ito
Hideyuki Shinonaga
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP59271040A priority Critical patent/JPS61148926A/ja
Priority to US06/810,144 priority patent/US4706239A/en
Priority to GB08531315A priority patent/GB2169474B/en
Publication of JPS61148926A publication Critical patent/JPS61148926A/ja
Publication of JPS6366096B2 publication Critical patent/JPS6366096B2/ja
Granted legal-status Critical Current

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
    • H04B7/204—Multiple access
    • H04B7/2041—Spot beam multiple access

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
JP59271040A 1984-12-24 1984-12-24 通信衛星中継器 Granted JPS61148926A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP59271040A JPS61148926A (ja) 1984-12-24 1984-12-24 通信衛星中継器
US06/810,144 US4706239A (en) 1984-12-24 1985-12-18 Communications satellite repeater
GB08531315A GB2169474B (en) 1984-12-24 1985-12-19 Communications satellite repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59271040A JPS61148926A (ja) 1984-12-24 1984-12-24 通信衛星中継器

Publications (2)

Publication Number Publication Date
JPS61148926A JPS61148926A (ja) 1986-07-07
JPS6366096B2 true JPS6366096B2 (enExample) 1988-12-19

Family

ID=17494560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59271040A Granted JPS61148926A (ja) 1984-12-24 1984-12-24 通信衛星中継器

Country Status (3)

Country Link
US (1) US4706239A (enExample)
JP (1) JPS61148926A (enExample)
GB (1) GB2169474B (enExample)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858229A (en) * 1986-08-14 1989-08-15 Hughes Aircraft Company Filter interconnection matrix
US4879711A (en) * 1986-08-14 1989-11-07 Hughes Aircraft Company Satellite communications system employing frequency reuse
US4905239A (en) * 1987-03-26 1990-02-27 British Aerospace Public Limited Company R. F. signal distribution
DE8706928U1 (de) * 1987-05-14 1987-08-06 ANT Nachrichtentechnik GmbH, 7150 Backnang Filterbank
US4858225A (en) * 1987-11-05 1989-08-15 International Telecommunications Satellite Variable bandwidth variable center-frequency multibeam satellite-switched router
GB8819501D0 (en) * 1988-08-17 1988-09-21 British Aerospace Spacecraft payload
US5068813A (en) * 1989-11-07 1991-11-26 Mts Systems Corporation Phased digital filtering in multichannel environment
US5233609A (en) * 1990-08-27 1993-08-03 Gte Government Systems Multichannel multiplexer with frequency discrimination characteristics
US5274839A (en) * 1992-02-12 1993-12-28 General Electric Co. Satellite communications system with the zero-db coupler
FR2694855B1 (fr) * 1992-08-14 1994-09-30 Alcatel Espace Dispositif de commutation transparente, notamment pour le domaine spatial, architectures de charge utile utilisant un tel dispositif, et procédés de mise en Óoeuvre du dispositif et des architectures.
FR2714200B1 (fr) * 1993-11-25 1996-12-27 Fujitsu Ltd Dispositif à onde acoustique de surface et son procédé de fabrication.
CA2157209C (en) * 1995-08-30 2001-04-10 Robert Peach Repeaters for multibeam satellites
DE69626905T2 (de) * 1995-08-30 2004-03-11 Com Dev Ltd., Cambridge Satelliten-Zwischenverstärker zur Funkkeulen-Umschaltung von Kanälen und Teilkanälen
CA2165875C (en) * 1995-12-21 2001-03-13 Gary Beauchamp Intersatellite communications systems
DE69627284T2 (de) * 1995-12-21 2004-04-01 Com Dev Ltd., Cambridge Intersatellitenkommunikationsanordnung mit Unterkanalschaltung und Bent-Pipe-Architektur
DE19612108A1 (de) * 1996-03-27 1997-10-02 Bosch Gmbh Robert Punkt-zu-Mehrpunkt Funkübertragungssystem
GB2314725B (en) * 1996-06-28 2000-03-08 Matra Marconi Space Uk Ltd Switching means for use on-board a spacecraft
US6560461B1 (en) 1997-08-04 2003-05-06 Mundi Fomukong Authorized location reporting paging system
US6047162A (en) * 1997-09-25 2000-04-04 Com Dev Limited Regional programming in a direct broadcast satellite
JP3476120B2 (ja) * 1998-07-13 2003-12-10 日本ビクター株式会社 無線通信システム
US6301465B1 (en) * 1998-10-12 2001-10-09 Trw Inc. Adaptive transceiver architecture for real time allocation of communications resources in a satellite based telecommunication system
US6229986B1 (en) * 1998-11-18 2001-05-08 Hughes Electronics Corporation Reconfigurable analog channel processor for multibeam satellites
US6275479B1 (en) * 1999-03-19 2001-08-14 Spacecode Llc Multiplexed power amplifiers for satellite communication system
US6317420B1 (en) * 1999-06-25 2001-11-13 Qualcomm Inc. Feeder link spatial multiplexing in a satellite communication system
US6704543B1 (en) * 1999-09-27 2004-03-09 Ems Technologies, Inc. Multi-beam satellite communications system
US6836658B1 (en) 2000-03-03 2004-12-28 Ems Technologies, Inc. High data rate satellite communications system and method
US7272375B2 (en) 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method
GB0423394D0 (en) * 2004-10-21 2004-11-24 Eads Astrium Ltd Improvements in the flexibility of communications satellite payloads
US9525978B2 (en) 2005-07-29 2016-12-20 The Directv Group, Inc. Method and apparatus for transmitting high bandwidth signals with low bandwidth transponders
US8200149B1 (en) * 2005-07-29 2012-06-12 The Directv Group, Inc. Combining transponder bandwidths for source and forward error correction encoding efficiency
EP1999865B1 (en) * 2006-03-30 2010-08-25 Finmeccanica - Società per azioni System for extending bi-directional satellite radio communications in tunnels
KR20090115982A (ko) * 2007-03-02 2009-11-10 퀄컴 인코포레이티드 신호 품질을 개선하기 위해 온-채널 중계기와 결합된 적응형 안테나 어레이의 이용
CN102804635A (zh) * 2009-06-12 2012-11-28 株式会社Ntt都科摩 中继放大装置
JP6328388B2 (ja) 2013-07-29 2018-05-23 Ntn株式会社 クラッチレリーズ軸受装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1943735A1 (de) * 1969-08-28 1971-03-11 Licentia Gmbh Richtfunkanlage
US4381562A (en) * 1980-05-01 1983-04-26 Bell Telephone Laboratories, Incorporated Broadcast type satellite communication systems
US4456988A (en) * 1981-01-29 1984-06-26 Kokusai Denshin Denwa Kabushiki Kaisha Satellite repeater

Also Published As

Publication number Publication date
US4706239A (en) 1987-11-10
GB2169474A (en) 1986-07-09
JPS61148926A (ja) 1986-07-07
GB2169474B (en) 1988-12-07
GB8531315D0 (en) 1986-01-29

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees