ATE75089T1 - Anrufeinrichtungen. - Google Patents

Anrufeinrichtungen.

Info

Publication number
ATE75089T1
ATE75089T1 AT87307946T AT87307946T ATE75089T1 AT E75089 T1 ATE75089 T1 AT E75089T1 AT 87307946 T AT87307946 T AT 87307946T AT 87307946 T AT87307946 T AT 87307946T AT E75089 T1 ATE75089 T1 AT E75089T1
Authority
AT
Austria
Prior art keywords
channel
send
receive
signal
signals
Prior art date
Application number
AT87307946T
Other languages
English (en)
Inventor
Hagop Atamian
Original Assignee
Cass Group Plc
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 Cass Group Plc filed Critical Cass Group Plc
Application granted granted Critical
Publication of ATE75089T1 publication Critical patent/ATE75089T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • 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)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephone Function (AREA)
  • Rehabilitation Tools (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
AT87307946T 1986-09-10 1987-09-09 Anrufeinrichtungen. ATE75089T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868621758A GB8621758D0 (en) 1986-09-10 1986-09-10 Call devices
EP87307946A EP0264188B1 (de) 1986-09-10 1987-09-09 Anrufeinrichtungen

Publications (1)

Publication Number Publication Date
ATE75089T1 true ATE75089T1 (de) 1992-05-15

Family

ID=10603937

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87307946T ATE75089T1 (de) 1986-09-10 1987-09-09 Anrufeinrichtungen.

Country Status (6)

Country Link
EP (1) EP0264188B1 (de)
AT (1) ATE75089T1 (de)
AU (1) AU606613B2 (de)
CA (1) CA1274330A (de)
DE (1) DE3778283D1 (de)
GB (1) GB8621758D0 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU622524B2 (en) * 1989-03-16 1992-04-09 Alcatel Australia Limited Receiver mute circuit
US5210784A (en) * 1991-06-28 1993-05-11 Lifeline Systems, Inc. Adaptive speakerphone system
GB2375688B (en) * 2001-05-14 2004-09-29 Motorola Ltd Telephone apparatus and a communication method using such apparatus
DE102008017231A1 (de) * 2008-04-04 2009-11-19 S. Siedle & Söhne Telefon- und Telegrafenwerke OHG Verfahren zum Betreiben einer Sende- und Empfangsvorrichtung und entsprechend ausgelegte Vorrichtung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1588395A (de) * 1968-10-16 1970-04-10
US4012603A (en) * 1974-08-27 1977-03-15 Nippon Electric Company, Ltd. Echo suppressor having self-adaptive means
JPS6050092B2 (ja) * 1977-11-08 1985-11-06 ケイディディ株式会社 適応制御型反響阻止装置
FR2461412A1 (fr) * 1979-07-06 1981-01-30 Connan Jean Louis Poste telephonique a ecoute amplifiee sur haut-parleur
CA1186826A (en) * 1981-03-18 1985-05-07 Jin H. Yun Loudspeaker telephone system
DE3137147C1 (de) * 1981-09-18 1983-05-19 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur UEbermittlung von Notrufen von hilfebeduerftigen Personen
CA1181541A (en) * 1982-05-21 1985-01-22 Mitel Corporation Loudspeaking telephone

Also Published As

Publication number Publication date
EP0264188A1 (de) 1988-04-20
DE3778283D1 (de) 1992-05-21
GB8621758D0 (en) 1986-10-15
CA1274330A (en) 1990-09-18
EP0264188B1 (de) 1992-04-15
AU606613B2 (en) 1991-02-14
AU7819587A (en) 1988-03-17

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties