DE3778283D1 - Anrufeinrichtungen. - Google Patents

Anrufeinrichtungen.

Info

Publication number
DE3778283D1
DE3778283D1 DE8787307946T DE3778283T DE3778283D1 DE 3778283 D1 DE3778283 D1 DE 3778283D1 DE 8787307946 T DE8787307946 T DE 8787307946T DE 3778283 T DE3778283 T DE 3778283T DE 3778283 D1 DE3778283 D1 DE 3778283D1
Authority
DE
Germany
Prior art keywords
channel
send
receive
signal
signals
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 - Fee Related
Application number
DE8787307946T
Other languages
English (en)
Inventor
Hagop Atamian
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.)
CASS GROUP PLC
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 DE3778283D1 publication Critical patent/DE3778283D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
DE8787307946T 1986-09-10 1987-09-09 Anrufeinrichtungen. Expired - Fee Related DE3778283D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868621758A GB8621758D0 (en) 1986-09-10 1986-09-10 Call devices

Publications (1)

Publication Number Publication Date
DE3778283D1 true DE3778283D1 (de) 1992-05-21

Family

ID=10603937

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787307946T Expired - Fee Related DE3778283D1 (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
EP0264188B1 (de) 1992-04-15
GB8621758D0 (en) 1986-10-15
CA1274330A (en) 1990-09-18
AU7819587A (en) 1988-03-17
ATE75089T1 (de) 1992-05-15
AU606613B2 (en) 1991-02-14

Similar Documents

Publication Publication Date Title
IT1261738B (it) Apparecchio per radio comunicazioni con dispositivo avvisatore di chiamata, generatore di segnali di avvertimento udibili e non udibili.
ATE196219T1 (de) Sprachnachrichtensystem mit sprachaktivierter ansageunterbrechung
CA2138698A1 (en) Telephone Set with Background Noise Suppression Function
DK344182A (da) Radiotelefon med haandfri drift
US4160122A (en) Telephone earphone amplifier
DE3778283D1 (de) Anrufeinrichtungen.
ES2127235T3 (es) Procedimiento para mejorar la atenuacion del retorno acustico de sistemas electroacusticos.
EP0090314A3 (de) An das A-Gesetz anpassbarer PCM-Koder
KR920006207Y1 (ko) 전화기의 자동수신 상태 전환회로
JPS6442966A (en) Telephone set
ATE37107T1 (de) Suchgeraet fuer lawinenverschuettete.
JPS543408A (en) Telephone set with automatic adjusting function for ringing tone volume
GB2021902A (en) Voice controlled communication systems
JPS56111360A (en) Telephone automatic calling system
KR860001749B1 (ko) 도어폰
SE8000586L (sv) Anordning for kontroll av till en abonnentapparat kommande telefonanrop
KR960009513A (ko) 자동 착신 스피커폰 전환기
JPS56158565A (en) Automatic answering telephone set capable for formation of waiting state by means of remote control
JPS63121328A (ja) コ−ドレス電話機の送信電力制御装置
GB2021355A (en) Hands-free facility
KR930024481U (ko) 카폰동작시 카오디오 자동 뮤팅 장치
JPS61195055A (ja) 拡声電話機の音声スイツチ回路
IT1154316B (it) Perfezionemento nei sistemi telefonici con altoparlanti
EP0762639A3 (de) Vorrichtung zum Einstellen der Lautstärke in einem Empfänger für blockkodierte Sprachsignale
KR970050925A (ko) 텔레 브이씨알의 통화중 자동 음성 소거 장치

Legal Events

Date Code Title Description
8328 Change in the person/name/address of the agent

Free format text: MEINKE, J., DIPL.-ING. DABRINGHAUS, W., DIPL.-ING. MEINKE, J., DIPL.-ING., PAT.-ANWAELTE, 4600 DORTMUND

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee