FI71028C - Larmsystem innefattande ett antal abonnentapparater och en abonnentapparaterna betjaenande larmcentral - Google Patents

Larmsystem innefattande ett antal abonnentapparater och en abonnentapparaterna betjaenande larmcentral Download PDF

Info

Publication number
FI71028C
FI71028C FI790337A FI790337A FI71028C FI 71028 C FI71028 C FI 71028C FI 790337 A FI790337 A FI 790337A FI 790337 A FI790337 A FI 790337A FI 71028 C FI71028 C FI 71028C
Authority
FI
Finland
Prior art keywords
alarm
subscriber
switching device
transmitter
center
Prior art date
Application number
FI790337A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI790337A (fi
FI71028B (fi
Inventor
Karl Magnus Andersson
Karl-Magnus Andersson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of FI790337A publication Critical patent/FI790337A/fi
Publication of FI71028B publication Critical patent/FI71028B/sv
Application granted granted Critical
Publication of FI71028C publication Critical patent/FI71028C/sv

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)
  • Alarm Systems (AREA)
  • Telephonic Communication Services (AREA)
FI790337A 1978-02-10 1979-02-01 Larmsystem innefattande ett antal abonnentapparater och en abonnentapparaterna betjaenande larmcentral FI71028C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7801578 1978-02-10
SE7801578A SE416593B (sv) 1978-02-10 1978-02-10 Larmsystem innefattande ett antal abonnentapparater

Publications (3)

Publication Number Publication Date
FI790337A FI790337A (fi) 1979-08-11
FI71028B FI71028B (fi) 1986-07-18
FI71028C true FI71028C (fi) 1986-10-27

Family

ID=20333955

Family Applications (1)

Application Number Title Priority Date Filing Date
FI790337A FI71028C (fi) 1978-02-10 1979-02-01 Larmsystem innefattande ett antal abonnentapparater och en abonnentapparaterna betjaenande larmcentral

Country Status (6)

Country Link
DE (1) DE2903459A1 (xx)
DK (1) DK147748C (xx)
FI (1) FI71028C (xx)
NL (1) NL7901020A (xx)
NO (1) NO150098C (xx)
SE (1) SE416593B (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033758B1 (de) * 1980-02-04 1984-12-12 ANT Nachrichtentechnik GmbH Notrufsystem
DE3129080C2 (de) * 1981-07-23 1984-02-16 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur Übermittlung von Notrufen von hilfebedürftigen Personen
DE3137147C1 (de) * 1981-09-18 1983-05-19 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur UEbermittlung von Notrufen von hilfebeduerftigen Personen
US4763349A (en) * 1981-12-31 1988-08-09 Howard Siegel Monitoring apparatus using telephone link
SE444880B (sv) * 1984-09-17 1986-05-12 Ericsson Telefon Ab L M Sett for att i ett telekommunikationssystem vid anrop till nattkopplad jourcentral eller jourcentral ur drift astadkomma automatisk omkoppling till en annan jourcentral och anordning for genomforande av settet

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2712690C2 (de) * 1977-03-23 1986-06-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung zur drahtlosen Übermittlung eines kodierten Notrufes

Also Published As

Publication number Publication date
DK147748B (da) 1984-11-26
DK54479A (da) 1979-08-11
NO150098C (no) 1984-08-15
SE7801578L (sv) 1979-08-11
DE2903459C2 (xx) 1988-01-14
FI790337A (fi) 1979-08-11
FI71028B (fi) 1986-07-18
SE416593B (sv) 1981-01-19
NO150098B (no) 1984-05-07
DE2903459A1 (de) 1979-08-16
NL7901020A (nl) 1979-08-14
NO790433L (no) 1979-08-13
DK147748C (da) 1985-06-24

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: OY L M ERICSSON AB