NO980457L - D°rÕpner-samtaleanlegg - Google Patents

D°rÕpner-samtaleanlegg

Info

Publication number
NO980457L
NO980457L NO980457A NO980457A NO980457L NO 980457 L NO980457 L NO 980457L NO 980457 A NO980457 A NO 980457A NO 980457 A NO980457 A NO 980457A NO 980457 L NO980457 L NO 980457L
Authority
NO
Norway
Prior art keywords
positions
current source
door
rõpner
intercoms
Prior art date
Application number
NO980457A
Other languages
English (en)
Other versions
NO980457D0 (no
Inventor
Klaus Dieter Dihlmann
Original Assignee
Deutsche Telekom Ag
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 Deutsche Telekom Ag filed Critical Deutsche Telekom Ag
Publication of NO980457D0 publication Critical patent/NO980457D0/no
Publication of NO980457L publication Critical patent/NO980457L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
    • H04M11/025—Door telephones

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Rehabilitation Tools (AREA)
  • Passenger Equipment (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Lock And Its Accessories (AREA)

Abstract

Doråpner-samtaleanlegg, som muliggjør toveis samtale via en totråds forbindelse og mellom etter hverandre passerende døråpner-samtalesteder og et derfra valgt telefonapparat til en abonnent. For løsning av opptredende problemer ved forskjellige spenninger og strømmer, er anordnet en kaskadekoblbar forbindelsesmodul 40 med en omkobler 50, som ved reaksjon på et fra døråpner-samtalestedet 30 kommende velgertegn tilkobler kun dette døråpner-samtalestedet til totråds TK-anlegget l O og forbinder det andre henholdsvis de andre døråpner-samtalestedene med en strømkilde 60, som mater inn en hvilestrøm.
NO980457A 1997-02-04 1998-02-03 D°rÕpner-samtaleanlegg NO980457L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19704026A DE19704026B4 (de) 1997-02-04 1997-02-04 Türfreisprechanlage

Publications (2)

Publication Number Publication Date
NO980457D0 NO980457D0 (no) 1998-02-03
NO980457L true NO980457L (no) 1998-08-05

Family

ID=7819184

Family Applications (1)

Application Number Title Priority Date Filing Date
NO980457A NO980457L (no) 1997-02-04 1998-02-03 D°rÕpner-samtaleanlegg

Country Status (4)

Country Link
EP (1) EP0856982B1 (no)
AT (1) ATE459197T1 (no)
DE (2) DE19704026B4 (no)
NO (1) NO980457L (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102117831B (zh) * 2009-12-31 2013-03-13 中国科学院微电子研究所 晶体管及其制造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1165924B (it) * 1979-12-19 1987-04-29 Lt Terraneo Spa Sistema a due soli fili per il collegamento fra posto esterno ed i derivati negli impianti citofonici
DE3710091A1 (de) * 1987-03-27 1988-10-13 Siedle & Soehne S Sprech-, laeut- und oeffneranlage
SE467810B (sv) * 1991-01-29 1992-09-14 Anders Edvard Trell Saett att signalera/kommunicera inom ett porttelefonsystem samt porttelefonsystem foer kommunikation enligt saettet
DE59308556D1 (de) 1992-02-26 1998-06-25 Siemens Ag Telekommunikationssystem mit einem als Türfreisprechstelle ausgebildeten Endgerät
DE4236565C2 (de) * 1992-10-29 1997-01-30 Deutsche Telekom Ag Türfreisprechanlage
DE19548744C5 (de) * 1995-02-28 2004-02-05 TCS TürControlSysteme AG Signal- und Gegensprechanlage für die Haustechnik
DE19524204A1 (de) * 1995-07-03 1997-01-16 Deutsche Telekom Ag Telekommunikationsanlage, kombiniert mit einer Torstelle mit Türfreisprecheinrichtung

Also Published As

Publication number Publication date
EP0856982A2 (de) 1998-08-05
EP0856982B1 (de) 2010-02-24
DE19704026B4 (de) 2007-12-27
NO980457D0 (no) 1998-02-03
DE59713028D1 (de) 2010-04-08
ATE459197T1 (de) 2010-03-15
DE19704026A1 (de) 1998-08-06
EP0856982A3 (de) 2004-01-21

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