CA2273362A1 - Systeme de communication terrestre - Google Patents

Systeme de communication terrestre Download PDF

Info

Publication number
CA2273362A1
CA2273362A1 CA002273362A CA2273362A CA2273362A1 CA 2273362 A1 CA2273362 A1 CA 2273362A1 CA 002273362 A CA002273362 A CA 002273362A CA 2273362 A CA2273362 A CA 2273362A CA 2273362 A1 CA2273362 A1 CA 2273362A1
Authority
CA
Canada
Prior art keywords
lts
terrestrial
communication
satellites
local
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.)
Abandoned
Application number
CA002273362A
Other languages
English (en)
Inventor
Edvard Bjurfjell
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.)
Wellton Persson Claes Lorentz Uno
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2273362A1 publication Critical patent/CA2273362A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

L'invention concerne un système de communication terrestre facilitant la transmission audio, vidéo, de données et tout type de communication à l'intérieur d'une zone géographique locale et avec un très grand nombre de canaux de communication rendus disponibles simultanément à un très faible coût. Ce système comprend au moins un satellite terrestre local (LST), de préférence implanté dans un mât ou une autre structure de support quelle qu'elle soit. Chaque LTS possède un équipement de communication haute fréquence correspondant sensiblement à un satellite géostationnaire conventionnel pour la transmission numérique audio, vidéo ou de données, agencé de manière à transmettre dans la bande L (1 à 2 GHz), la bande S (2 à 4 GHz) ou une bande de fréquence plus haute avec une puissance de sortie relativement faible. Chaque LTS possède également un dispositif d'antenne de préférence omnidirectionnelle pour la transmission dans un plan sensiblement horizontal. Les signaux peuvent être numérisés selon MPEG-2 ou selon n'importe quel algorithme connu ou futur pour la formation d'un signal.
CA002273362A 1996-06-11 1997-12-01 Systeme de communication terrestre Abandoned CA2273362A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9602302A SE9602302L (sv) 1996-06-11 1996-06-11 System för markbaserad satellit för markbaserad lokal sändning av TV, text-TV och data
SE9602302-3 1996-12-01
PCT/SE1997/002012 WO1998025411A1 (fr) 1996-06-11 1997-12-01 Systeme de communication terrestre

Publications (1)

Publication Number Publication Date
CA2273362A1 true CA2273362A1 (fr) 1998-06-11

Family

ID=20402959

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002273362A Abandoned CA2273362A1 (fr) 1996-06-11 1997-12-01 Systeme de communication terrestre

Country Status (16)

Country Link
EP (1) EP0943208A1 (fr)
JP (1) JP2001508960A (fr)
CN (1) CN1238887A (fr)
AU (1) AU729822B2 (fr)
BR (1) BR9713817A (fr)
CA (1) CA2273362A1 (fr)
CU (1) CU22647A3 (fr)
CZ (1) CZ186999A3 (fr)
EE (1) EE03721B1 (fr)
HU (1) HUP0000579A3 (fr)
IL (1) IL130147A0 (fr)
NZ (1) NZ336101A (fr)
SE (1) SE9602302L (fr)
TR (1) TR199901182T2 (fr)
TW (1) TW358279B (fr)
WO (1) WO1998025411A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040172832A1 (en) * 2003-03-04 2004-09-09 Colin Clipstone Razor blade
KR101796199B1 (ko) 2016-12-20 2017-11-10 해성디에스 주식회사 온도 센서 패치 및 이를 포함하는 접착식 온도계

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08512449A (ja) * 1994-05-06 1996-12-24 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 一点多点間細胞内テレビジョン送信方式

Also Published As

Publication number Publication date
CN1238887A (zh) 1999-12-15
HUP0000579A3 (en) 2000-09-28
WO1998025411A1 (fr) 1998-06-11
EP0943208A1 (fr) 1999-09-22
CU22647A3 (es) 2000-12-22
AU5236898A (en) 1998-06-29
SE9602302L (sv) 1998-06-02
TW358279B (en) 1999-05-11
SE9602302D0 (sv) 1996-06-11
EE9900216A (et) 1999-12-15
IL130147A0 (en) 2000-06-01
BR9713817A (pt) 2000-03-14
EE03721B1 (et) 2002-04-15
NZ336101A (en) 2000-11-24
JP2001508960A (ja) 2001-07-03
WO1998025411A8 (fr) 1999-10-21
AU729822B2 (en) 2001-02-08
CZ186999A3 (cs) 1999-12-15
TR199901182T2 (xx) 1999-07-21
HUP0000579A2 (hu) 2000-06-28

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued