NL7709333A - Communicatieselsel voor het via een smalbandig transmissiekanaal bewaken van te kiezen posten. - Google Patents

Communicatieselsel voor het via een smalbandig transmissiekanaal bewaken van te kiezen posten.

Info

Publication number
NL7709333A
NL7709333A NL7709333A NL7709333A NL7709333A NL 7709333 A NL7709333 A NL 7709333A NL 7709333 A NL7709333 A NL 7709333A NL 7709333 A NL7709333 A NL 7709333A NL 7709333 A NL7709333 A NL 7709333A
Authority
NL
Netherlands
Prior art keywords
station
incoming signals
sub
auxiliary
main
Prior art date
Application number
NL7709333A
Other languages
English (en)
Other versions
NL182189C (nl
NL182189B (nl
Original Assignee
Siemens Nederland
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 Siemens Nederland filed Critical Siemens Nederland
Priority to NL7709333A priority Critical patent/NL182189C/nl
Publication of NL7709333A publication Critical patent/NL7709333A/nl
Publication of NL182189B publication Critical patent/NL182189B/nl
Application granted granted Critical
Publication of NL182189C publication Critical patent/NL182189C/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
NL7709333A 1977-08-24 1977-08-24 Stelsel voor het vanuit een hoofdpost via een smalbandig transmissiekanaal bewaken van subposten. NL182189C (nl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7709333A NL182189C (nl) 1977-08-24 1977-08-24 Stelsel voor het vanuit een hoofdpost via een smalbandig transmissiekanaal bewaken van subposten.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7709333A NL182189C (nl) 1977-08-24 1977-08-24 Stelsel voor het vanuit een hoofdpost via een smalbandig transmissiekanaal bewaken van subposten.

Publications (3)

Publication Number Publication Date
NL7709333A true NL7709333A (nl) 1979-02-27
NL182189B NL182189B (nl) 1987-08-17
NL182189C NL182189C (nl) 1988-01-18

Family

ID=19829065

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7709333A NL182189C (nl) 1977-08-24 1977-08-24 Stelsel voor het vanuit een hoofdpost via een smalbandig transmissiekanaal bewaken van subposten.

Country Status (1)

Country Link
NL (1) NL182189C (nl)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021425A1 (de) * 1979-06-27 1981-01-07 Siemens Aktiengesellschaft Verfahren und Vorrichtungen zur Meldung von Notrufen und Einleitung von Nothilfemassnahmen
EP0070993A1 (de) * 1981-07-23 1983-02-09 ANT Nachrichtentechnik GmbH Verfahren zur Übermittlung von Notrufen von hilfebedürftigen Personen
US4467142A (en) * 1981-09-18 1984-08-21 Licentia Patent-Verwaltungs-Gmbh System for transmitting emergency calls from persons requiring assistance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021425A1 (de) * 1979-06-27 1981-01-07 Siemens Aktiengesellschaft Verfahren und Vorrichtungen zur Meldung von Notrufen und Einleitung von Nothilfemassnahmen
EP0070993A1 (de) * 1981-07-23 1983-02-09 ANT Nachrichtentechnik GmbH Verfahren zur Übermittlung von Notrufen von hilfebedürftigen Personen
US4467142A (en) * 1981-09-18 1984-08-21 Licentia Patent-Verwaltungs-Gmbh System for transmitting emergency calls from persons requiring assistance

Also Published As

Publication number Publication date
NL182189C (nl) 1988-01-18
NL182189B (nl) 1987-08-17

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
V4 Lapsed because of reaching the maxim lifetime of a patent

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