DK152636C - Fremgangsmaade og apparat til detektering og tolkning af et noedsignal - Google Patents

Fremgangsmaade og apparat til detektering og tolkning af et noedsignal

Info

Publication number
DK152636C
DK152636C DK421780A DK421780A DK152636C DK 152636 C DK152636 C DK 152636C DK 421780 A DK421780 A DK 421780A DK 421780 A DK421780 A DK 421780A DK 152636 C DK152636 C DK 152636C
Authority
DK
Denmark
Prior art keywords
interpreting
detecting
emergency signal
emergency
signal
Prior art date
Application number
DK421780A
Other languages
Danish (da)
English (en)
Other versions
DK152636B (da
DK421780A (da
Inventor
Roger Rogard
Original Assignee
Org Europeene De Rech
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 Org Europeene De Rech filed Critical Org Europeene De Rech
Publication of DK421780A publication Critical patent/DK421780A/da
Publication of DK152636B publication Critical patent/DK152636B/da
Application granted granted Critical
Publication of DK152636C publication Critical patent/DK152636C/da

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)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Alarm Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Relay Systems (AREA)
DK421780A 1979-02-06 1980-10-06 Fremgangsmaade og apparat til detektering og tolkning af et noedsignal DK152636C (da)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
BE193301A BE873970A (fr) 1979-02-06 1979-02-06 Systeme de telecommunications de detresse par satellite
BE193301 1979-02-06
PCT/EP1980/000003 WO1980001631A1 (fr) 1979-02-06 1980-01-25 Procede et dispositif pour detecter et interpreter un signal de detresse
EP8000003 1980-01-25

Publications (3)

Publication Number Publication Date
DK421780A DK421780A (da) 1980-10-06
DK152636B DK152636B (da) 1988-03-28
DK152636C true DK152636C (da) 1988-08-15

Family

ID=3843181

Family Applications (1)

Application Number Title Priority Date Filing Date
DK421780A DK152636C (da) 1979-02-06 1980-10-06 Fremgangsmaade og apparat til detektering og tolkning af et noedsignal

Country Status (8)

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

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 (member.php) * 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 (member.php) * 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
DE3070138D1 (en) 1985-03-28
NO800306L (no) 1980-08-07
EP0023511B1 (fr) 1985-02-13
NO153200C (no) 1986-01-29
NO153200B (no) 1985-10-21
DK152636B (da) 1988-03-28
JPS56500276A (member.php) 1981-03-05
EP0023511A1 (fr) 1981-02-11
US4352199A (en) 1982-09-28
CA1131317A (fr) 1982-09-07
DK421780A (da) 1980-10-06
WO1980001631A1 (fr) 1980-08-07

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Legal Events

Date Code Title Description
PBP Patent lapsed