GB1502666A - Satelite telephone systems - Google Patents

Satelite telephone systems

Info

Publication number
GB1502666A
GB1502666A GB16239/75A GB1623975A GB1502666A GB 1502666 A GB1502666 A GB 1502666A GB 16239/75 A GB16239/75 A GB 16239/75A GB 1623975 A GB1623975 A GB 1623975A GB 1502666 A GB1502666 A GB 1502666A
Authority
GB
United Kingdom
Prior art keywords
control
signals
signalling
station
earth
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
GB16239/75A
Other languages
English (en)
Inventor
N H Edstrom
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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
Priority claimed from SE7405276A external-priority patent/SE373997B/xx
Priority claimed from SE7405277A external-priority patent/SE373998B/xx
Priority claimed from SE7405280A external-priority patent/SE373999B/xx
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB1502666A publication Critical patent/GB1502666A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing
    • 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
    • H04B7/18528—Satellite systems for providing two-way communications service to a network of fixed stations, i.e. fixed satellite service or very small aperture terminal [VSAT] system

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
GB16239/75A 1974-04-19 1975-04-18 Satelite telephone systems Expired GB1502666A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE7405276A SE373997B (enExample) 1974-04-19 1974-04-19
SE7405277A SE373998B (enExample) 1974-04-19 1974-04-19
SE7405280A SE373999B (enExample) 1974-04-19 1974-04-19

Publications (1)

Publication Number Publication Date
GB1502666A true GB1502666A (en) 1978-03-01

Family

ID=27355073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16239/75A Expired GB1502666A (en) 1974-04-19 1975-04-18 Satelite telephone systems

Country Status (7)

Country Link
US (1) US4018993A (enExample)
BR (1) BR7502285A (enExample)
CA (1) CA1040329A (enExample)
FR (1) FR2268407B1 (enExample)
GB (1) GB1502666A (enExample)
PH (1) PH11692A (enExample)
SU (1) SU1138059A3 (enExample)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488469A1 (fr) 1980-08-06 1982-02-12 Thomson Csf Mat Tel Procede d'etablissement de conversations radio-telephoniques dama simple bond par l'intermediaire d'un satellite
IL91529A0 (en) * 1988-10-28 1990-04-29 Motorola Inc Satellite cellular telephone and data communication system
US5239670A (en) * 1989-11-30 1993-08-24 Motorola, Inc. Satellite based global paging system
ATE160068T1 (de) * 1989-12-14 1997-11-15 Motorola Inc Satellitengebundenes personenrufmeldesystem mit rückquittierung
US6847611B1 (en) * 1990-12-10 2005-01-25 At&T Corp. Traffic management for frame relay switched data service
US5439190A (en) * 1991-04-22 1995-08-08 Trw Inc. Medium-earth-altitude satellite-based cellular telecommunications
US5433726A (en) * 1991-04-22 1995-07-18 Trw Inc. Medium-earth-altitude satellite-based cellular telecommunications system
US5434850A (en) 1993-06-17 1995-07-18 Skydata Corporation Frame relay protocol-based multiplex switching scheme for satellite
US6771617B1 (en) * 1993-06-17 2004-08-03 Gilat Satellite Networks, Ltd. Frame relay protocol-based multiplex switching scheme for satellite mesh network
US6473793B1 (en) * 1994-06-08 2002-10-29 Hughes Electronics Corporation Method and apparatus for selectively allocating and enforcing bandwidth usage requirements on network users
US6701370B1 (en) * 1994-06-08 2004-03-02 Hughes Electronics Corporation Network system with TCP/IP protocol spoofing
AU706160B2 (en) * 1994-06-08 1999-06-10 Hughes Electronics Corporation Apparatus and method for hybrid network access
JPH09509549A (ja) * 1994-09-14 1997-09-22 エリクソン インコーポレイテッド セルラ・ハンドセット衛星通信アダプタ
JPH10504158A (ja) * 1995-03-24 1998-04-14 ヨーロピアン ブロードキャスティング ユニオン カンファレンス・システム
US5815506A (en) * 1996-06-24 1998-09-29 Comsat Corporation Method for providing an overlay short messaging service in a mobile satellite communication system
US6101180A (en) 1996-11-12 2000-08-08 Starguide Digital Networks, Inc. High bandwidth broadcast system having localized multicast access to broadcast content
US6097929A (en) * 1997-03-03 2000-08-01 Telogy Networks, Inc. Method and system for monitoring and controlling a single channel per carrier satellite link between two remote earth stations
US6081524A (en) 1997-07-03 2000-06-27 At&T Corp. Frame relay switched data service
US6560461B1 (en) 1997-08-04 2003-05-06 Mundi Fomukong Authorized location reporting paging system
US6934255B1 (en) * 1999-02-02 2005-08-23 Packeteer, Inc. Internet over satellite apparatus
US20010025377A1 (en) * 1999-12-30 2001-09-27 Hinderks Larry W. High bandwidth transmission system and method having local insertion, delay play and demand play
US7343398B1 (en) 2002-09-04 2008-03-11 Packeteer, Inc. Methods, apparatuses and systems for transparently intermediating network traffic over connection-based authentication protocols

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1112589A (en) * 1965-02-27 1968-05-08 Nippon Electric Co A wireless communication system utilizing a stationary satellite
DE1591305B1 (de) * 1966-02-23 1971-03-11 Nippon Electric Co Satelliten uebertragungssystem mit beliebugem zugriff fuer mehrere bodenstationen
US3564147A (en) * 1968-04-05 1971-02-16 Communications Satellite Corp Local routing channel sharing system and method for communications via a satellite relay

Also Published As

Publication number Publication date
PH11692A (en) 1978-05-24
BR7502285A (pt) 1976-03-09
FR2268407B1 (enExample) 1979-10-05
CA1040329A (en) 1978-10-10
US4018993A (en) 1977-04-19
SU1138059A3 (ru) 1985-01-30
FR2268407A1 (enExample) 1975-11-14
AU8015275A (en) 1976-10-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee