[go: up one dir, main page]

ATE73974T1 - Tuertelefonsystem unter ausnutzung des oeffentlichen telefonteilnehmernetzes. - Google Patents

Tuertelefonsystem unter ausnutzung des oeffentlichen telefonteilnehmernetzes.

Info

Publication number
ATE73974T1
ATE73974T1 AT86904438T AT86904438T ATE73974T1 AT E73974 T1 ATE73974 T1 AT E73974T1 AT 86904438 T AT86904438 T AT 86904438T AT 86904438 T AT86904438 T AT 86904438T AT E73974 T1 ATE73974 T1 AT E73974T1
Authority
AT
Austria
Prior art keywords
time period
reply
during
telephone network
entrance
Prior art date
Application number
AT86904438T
Other languages
English (en)
Inventor
Anders Edvard Trell
Original Assignee
Anders Edvard Trell
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20360724&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE73974(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Anders Edvard Trell filed Critical Anders Edvard Trell
Application granted granted Critical
Publication of ATE73974T1 publication Critical patent/ATE73974T1/de

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)
  • Alarm Systems (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Telephonic Communication Services (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Telephone Set Structure (AREA)
  • Prepayment Telephone Systems (AREA)
  • Telephone Function (AREA)
AT86904438T 1985-06-27 1986-06-26 Tuertelefonsystem unter ausnutzung des oeffentlichen telefonteilnehmernetzes. ATE73974T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE8503209A SE451422B (sv) 1985-06-27 1985-06-27 Forfarande for signalbehandling vid en porttelefonanleggning avsedd att anslutas till ett allment telefonnet
EP86904438A EP0266355B1 (de) 1985-06-27 1986-06-26 Türtelefonsystem unter ausnutzung des öffentlichen telefonteilnehmernetzes
PCT/SE1986/000313 WO1987000378A1 (en) 1985-06-27 1986-06-26 Entrance telephone system utilizing the public subscriber telephone network

Publications (1)

Publication Number Publication Date
ATE73974T1 true ATE73974T1 (de) 1992-04-15

Family

ID=20360724

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86904438T ATE73974T1 (de) 1985-06-27 1986-06-26 Tuertelefonsystem unter ausnutzung des oeffentlichen telefonteilnehmernetzes.

Country Status (9)

Country Link
US (1) US4987589A (de)
EP (1) EP0266355B1 (de)
JP (1) JPS62503209A (de)
AT (1) ATE73974T1 (de)
AU (1) AU604644B2 (de)
CA (1) CA1261491A (de)
DE (1) DE3684477D1 (de)
SE (1) SE451422B (de)
WO (1) WO1987000378A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4937855A (en) * 1988-02-09 1990-06-26 Viscount Industries Limited Building security system
CA2000961C (en) * 1989-10-18 1995-05-23 Anders Edvard Trell Entrance communication system
US5363434A (en) * 1991-01-09 1994-11-08 Square D Company Audio distribution system
SE467810B (sv) * 1991-01-29 1992-09-14 Anders Edvard Trell Saett att signalera/kommunicera inom ett porttelefonsystem samt porttelefonsystem foer kommunikation enligt saettet
US5321742A (en) * 1992-07-06 1994-06-14 Stevens Clarke J Entry door answering telephone system
CA2132181A1 (en) * 1993-09-20 1995-03-21 John Rounds Call forwarding system for doorbell/intercom box
GB2285365A (en) * 1993-12-14 1995-07-05 Cosmic Commercial Services Lim High security entry system for a building or car park
FR2726113B1 (fr) * 1994-10-10 1997-01-10 Bensamoun Thierry Dispositif pour l'ouverture automatique d'une porte
US5612994A (en) * 1995-02-22 1997-03-18 Chen; Jhy-Ping Interphone system
US5905787A (en) * 1997-03-05 1999-05-18 Stuart; John C. Method and apparatus for installing telephone intercom--voice messaging apparatus at doorbell for dwelling
US6185294B1 (en) * 1996-11-01 2001-02-06 O. Joseph Chornenky Method and apparatus for installing telephone intercom-voice messaging apparatus at doorbell for dwelling
US5784446A (en) * 1996-11-01 1998-07-21 Cms Investors Method and apparatus for installing telephone intercom-voice messaging apparatus at doorbell for dwelling
US6350771B1 (en) * 1996-12-24 2002-02-26 Rhone-Poulenc, Inc. Pesticidal 1-arylpyrazoles
CA2288047A1 (en) * 1998-02-24 1999-09-02 Anders Trell Trust Method for entrance telephone communication utilizing public subscriber telephone networks
GB2389002A (en) * 2002-05-23 2003-11-26 Thomas Edmund Coster Door answering service
US6971480B2 (en) * 2003-08-29 2005-12-06 Electronic Micro Systems Inc. Elevator communication devices, systems and methods

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264519B (de) * 1965-09-10 1968-03-28 Standard Elektrik Lorenz Ag Datenuebermittlung in einer Fernsprechvermittlungsanlage, an die fuer tonfrequente Tastwahl eingerichtete Teilnehmerapparate und Teilnehmerapparate mit Nummernschalter angeschlossen sind
US3917911A (en) * 1972-12-27 1975-11-04 James M Lesher Security entry systems
SE373474B (de) * 1973-06-07 1975-02-03 A E Trell
US3990075A (en) * 1975-05-29 1976-11-02 Westinghouse Electric Corporation Solid state security system
US4113986A (en) * 1977-10-21 1978-09-12 Bell Telephone Laboratories, Incorporated Telephone controlled lock release arrangement
US4355207A (en) * 1980-05-30 1982-10-19 Amtel Communications, Inc. Telephone answering system
US4436958A (en) * 1982-06-30 1984-03-13 Western Electric Company, Inc. System using the telephone network to control locks at a number of remote locations
JPS5925064A (ja) * 1982-07-31 1984-02-08 Keihin Seiki Mfg Co Ltd 多連気化器における始動装置
JPS60160766A (ja) * 1984-01-31 1985-08-22 Nec Corp 受付電話表示方式
US4644104A (en) * 1986-04-07 1987-02-17 William Middlemiss Security system including a plurality of centrally programmable locking assemblies

Also Published As

Publication number Publication date
CA1261491A (en) 1989-09-26
AU604644B2 (en) 1991-01-03
EP0266355B1 (de) 1992-03-18
WO1987000378A1 (en) 1987-01-15
SE8503209L (sv) 1986-12-28
SE451422B (sv) 1987-10-05
SE8503209D0 (sv) 1985-06-27
AU6129986A (en) 1987-01-30
JPS62503209A (ja) 1987-12-17
EP0266355A1 (de) 1988-05-11
US4987589A (en) 1991-01-22
DE3684477D1 (de) 1992-04-23

Similar Documents

Publication Publication Date Title
ATE73974T1 (de) Tuertelefonsystem unter ausnutzung des oeffentlichen telefonteilnehmernetzes.
US4086438A (en) Automatic interconnection system
US3935396A (en) Key telephone system using time division and space division control
US4001513A (en) Method and apparatus for the detection of fraudulent toll telephone calls
US4490583A (en) Plural line telephone controller
US4097690A (en) Intercommunication and alarm telephone system
US4113986A (en) Telephone controlled lock release arrangement
ES359405A1 (es) Sistema de telecomunicacion.
US4369339A (en) Method for completing the connection between a telephone exchange and the phone subscriber's line in response to the reception, at the exchange, of a pre-established code
US3864519A (en) Speech-gap-responsive control apparatus
US4611098A (en) Coded telephone access system
US3978293A (en) Ringing control circuitry with shared ringing loop current detector
US4313038A (en) DTMF Signal receiver
GB1474737A (en) Telephone systems
US4219699A (en) Telephone supervision system using DTMF signals
US4059732A (en) Centralized telephone answering apparatus with remote accessing
US3673339A (en) Artificial line busy circuit
CA1082826A (en) Called party fraud detection in an automated coin system
US4626628A (en) Telephone line circuit having time-shared DTMF receivers
GB1371909A (en) Apparatus for blocking cialling by a telephone subscriber
GB1192758A (en) Telephoning System
GB1272723A (en) Key telephone systems using pushbutton or rotary dials
US3536839A (en) Answer tone detection circuit
US4535201A (en) Ground start detection in telephone loop signalling circuit
GB2015850A (en) Remote control and monitoring by telephone system