BE873970A - Systeme de telecommunications de detresse par satellite - Google Patents

Systeme de telecommunications de detresse par satellite

Info

Publication number
BE873970A
BE873970A BE193301A BE193301A BE873970A BE 873970 A BE873970 A BE 873970A BE 193301 A BE193301 A BE 193301A BE 193301 A BE193301 A BE 193301A BE 873970 A BE873970 A BE 873970A
Authority
BE
Belgium
Prior art keywords
distress
telecommunications system
satellite telecommunications
satellite
telecommunications
Prior art date
Application number
BE193301A
Other languages
English (en)
Inventor
R Rogard
Original Assignee
Organisation Europ De Rech S S
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 Organisation Europ De Rech S S filed Critical Organisation Europ De Rech S S
Priority to BE193301A priority Critical patent/BE873970A/fr
Publication of BE873970A publication Critical patent/BE873970A/fr
Priority to DE8080900365T priority patent/DE3070138D1/de
Priority to PCT/EP1980/000003 priority patent/WO1980001631A1/fr
Priority to JP50046780A priority patent/JPS56500276A/ja
Priority to US06/205,447 priority patent/US4352199A/en
Priority to NO800306A priority patent/NO153200C/no
Priority to CA345,102A priority patent/CA1131317A/fr
Priority to EP80900365A priority patent/EP0023511B1/fr
Priority to DK421780A priority patent/DK152636C/da

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/016—Personal emergency signalling and security systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/03—Constructional details, e.g. casings, housings
    • H04B1/034—Portable transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
BE193301A 1979-02-06 1979-02-06 Systeme de telecommunications de detresse par satellite BE873970A (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BE193301A BE873970A (fr) 1979-02-06 1979-02-06 Systeme de telecommunications de detresse par satellite
DE8080900365T DE3070138D1 (en) 1979-02-06 1980-01-25 Process and device for detecting and interpreting a distress signal
PCT/EP1980/000003 WO1980001631A1 (fr) 1979-02-06 1980-01-25 Procede et dispositif pour detecter et interpreter un signal de detresse
JP50046780A JPS56500276A (fr) 1979-02-06 1980-01-25
US06/205,447 US4352199A (en) 1979-02-06 1980-01-25 Method and device for detecting and interpreting a distress signal
NO800306A NO153200C (no) 1979-02-06 1980-02-05 Fremgangsmaate og anordning for deteksjon og fortolkning av et noedsignal.
CA345,102A CA1131317A (fr) 1979-02-06 1980-02-05 Procede et dispositif pour detecter et interpreter un signal de detresse
EP80900365A EP0023511B1 (fr) 1979-02-06 1980-08-15 Procede et dispositif pour detecter et interpreter un signal de detresse
DK421780A DK152636C (da) 1979-02-06 1980-10-06 Fremgangsmaade og apparat til detektering og tolkning af et noedsignal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE193301A BE873970A (fr) 1979-02-06 1979-02-06 Systeme de telecommunications de detresse par satellite
BE873970 1979-02-06

Publications (1)

Publication Number Publication Date
BE873970A true BE873970A (fr) 1979-05-29

Family

ID=25651254

Family Applications (1)

Application Number Title Priority Date Filing Date
BE193301A BE873970A (fr) 1979-02-06 1979-02-06 Systeme de telecommunications de detresse par satellite

Country Status (1)

Country Link
BE (1) BE873970A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001631A1 (fr) * 1979-02-06 1980-08-07 Org Europeene De Rech Procede et dispositif pour detecter et interpreter un signal de detresse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001631A1 (fr) * 1979-02-06 1980-08-07 Org Europeene De Rech Procede et dispositif pour detecter et interpreter un signal de detresse

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: ORGANISATION EUROPEENNE DE RECHERCHES SPATIALES

Effective date: 19930228