DE3684477D1 - Tuertelefonsystem unter ausnutzung des oeffentlichen telefonteilnehmernetzes. - Google Patents

Tuertelefonsystem unter ausnutzung des oeffentlichen telefonteilnehmernetzes.

Info

Publication number
DE3684477D1
DE3684477D1 DE8686904438T DE3684477T DE3684477D1 DE 3684477 D1 DE3684477 D1 DE 3684477D1 DE 8686904438 T DE8686904438 T DE 8686904438T DE 3684477 T DE3684477 T DE 3684477T DE 3684477 D1 DE3684477 D1 DE 3684477D1
Authority
DE
Germany
Prior art keywords
time period
reply
during
entrance
telephone network
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE8686904438T
Other languages
English (en)
Inventor
Anders Edvard Trell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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=DE3684477(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE3684477D1 publication Critical patent/DE3684477D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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 Function (AREA)
  • Telephone Set Structure (AREA)
  • Prepayment Telephone Systems (AREA)
DE8686904438T 1985-06-27 1986-06-26 Tuertelefonsystem unter ausnutzung des oeffentlichen telefonteilnehmernetzes. Expired - Lifetime DE3684477D1 (de)

Applications Claiming Priority (2)

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
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
DE3684477D1 true DE3684477D1 (de) 1992-04-23

Family

ID=20360724

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686904438T Expired - Lifetime DE3684477D1 (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
US5784446A (en) * 1996-11-01 1998-07-21 Cms Investors 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
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
US6350771B1 (en) * 1996-12-24 2002-02-26 Rhone-Poulenc, Inc. Pesticidal 1-arylpyrazoles
WO1999044353A1 (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
SE451422B (sv) 1987-10-05
US4987589A (en) 1991-01-22
EP0266355A1 (de) 1988-05-11
SE8503209L (sv) 1986-12-28
JPS62503209A (ja) 1987-12-17
WO1987000378A1 (en) 1987-01-15
AU604644B2 (en) 1991-01-03
SE8503209D0 (sv) 1985-06-27
EP0266355B1 (de) 1992-03-18
AU6129986A (en) 1987-01-30
ATE73974T1 (de) 1992-04-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee