DE3070138D1 - Process and device for detecting and interpreting a distress signal - Google Patents

Process and device for detecting and interpreting a distress signal

Info

Publication number
DE3070138D1
DE3070138D1 DE8080900365T DE3070138T DE3070138D1 DE 3070138 D1 DE3070138 D1 DE 3070138D1 DE 8080900365 T DE8080900365 T DE 8080900365T DE 3070138 T DE3070138 T DE 3070138T DE 3070138 D1 DE3070138 D1 DE 3070138D1
Authority
DE
Germany
Prior art keywords
interpreting
detecting
distress signal
distress
signal
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
DE8080900365T
Other languages
English (en)
Inventor
Roger Rogard
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.)
Agence Spatiale Europeenne
Original Assignee
Agence Spatiale Europeenne
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 BE193301A external-priority patent/BE873970A/xx
Application filed by Agence Spatiale Europeenne filed Critical Agence Spatiale Europeenne
Application granted granted Critical
Publication of DE3070138D1 publication Critical patent/DE3070138D1/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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

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)
  • Mobile Radio Communication Systems (AREA)
  • Alarm Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
DE8080900365T 1979-02-06 1980-01-25 Process and device for detecting and interpreting a distress signal Expired DE3070138D1 (en)

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
PCT/EP1980/000003 WO1980001631A1 (en) 1979-02-06 1980-01-25 Process and device for detecting and interpreting a distress signal

Publications (1)

Publication Number Publication Date
DE3070138D1 true DE3070138D1 (en) 1985-03-28

Family

ID=3843181

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080900365T Expired DE3070138D1 (en) 1979-02-06 1980-01-25 Process and device for detecting and interpreting a distress signal

Country Status (8)

Country Link
US (1) US4352199A (de)
EP (1) EP0023511B1 (de)
JP (1) JPS56500276A (de)
CA (1) CA1131317A (de)
DE (1) DE3070138D1 (de)
DK (1) DK152636C (de)
NO (1) NO153200C (de)
WO (1) WO1980001631A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547778A (en) * 1981-06-09 1985-10-15 Texas Instruments Incorporated Method and apparatus for automatic distress call signal transmission

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3430143A (en) * 1965-03-15 1969-02-25 Gen Dynamics Corp Communications system wherein information is represented by the phase difference between adjacent tones
US3432755A (en) * 1966-10-03 1969-03-11 Joe Moreno Distress signalling device for submarine and aircraft
US3581208A (en) * 1968-12-16 1971-05-25 William Buehrle Jr Emergency warning and identification apparatus for two-way radio communication system
US3668526A (en) * 1969-09-12 1972-06-06 Jerome S Raskin Communication system having means for causing a distress signal
FR2113907B1 (de) * 1970-11-12 1974-07-19 Int Standard Electric Corp
US3723876A (en) * 1971-06-21 1973-03-27 G Seaborn Emergency distress signaling system
JPS4948663B2 (de) * 1972-06-07 1974-12-23
US3914692A (en) * 1973-08-29 1975-10-21 Jr George C Seaborn Emergency communication system
BE873970A (fr) * 1979-02-06 1979-05-29 Organisation Europ De Rech S S Systeme de telecommunications de detresse par satellite

Also Published As

Publication number Publication date
DK152636C (da) 1988-08-15
NO153200B (no) 1985-10-21
NO153200C (no) 1986-01-29
NO800306L (no) 1980-08-07
CA1131317A (fr) 1982-09-07
DK152636B (da) 1988-03-28
DK421780A (da) 1980-10-06
US4352199A (en) 1982-09-28
EP0023511B1 (de) 1985-02-13
EP0023511A1 (de) 1981-02-11
JPS56500276A (de) 1981-03-05
WO1980001631A1 (en) 1980-08-07

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee