CA2017694A1 - Dispositif d'interface - Google Patents

Dispositif d'interface

Info

Publication number
CA2017694A1
CA2017694A1 CA2017694A CA2017694A CA2017694A1 CA 2017694 A1 CA2017694 A1 CA 2017694A1 CA 2017694 A CA2017694 A CA 2017694A CA 2017694 A CA2017694 A CA 2017694A CA 2017694 A1 CA2017694 A1 CA 2017694A1
Authority
CA
Canada
Prior art keywords
interface device
technology
signaling voltages
range
detecfor
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.)
Granted
Application number
CA2017694A
Other languages
English (en)
Other versions
CA2017694C (fr
Inventor
Ulrich Riedle
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of CA2017694A1 publication Critical patent/CA2017694A1/fr
Application granted granted Critical
Publication of CA2017694C publication Critical patent/CA2017694C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0096—Trunk circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Telephone Function (AREA)
  • Dc Digital Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Surgical Instruments (AREA)
  • Glass Compositions (AREA)
CA002017694A 1989-05-31 1990-05-29 Dispositif d'interface Expired - Fee Related CA2017694C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3917713.0 1989-05-31
DE3917713 1989-05-31

Publications (2)

Publication Number Publication Date
CA2017694A1 true CA2017694A1 (fr) 1990-11-30
CA2017694C CA2017694C (fr) 1999-12-14

Family

ID=6381765

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002017694A Expired - Fee Related CA2017694C (fr) 1989-05-31 1990-05-29 Dispositif d'interface

Country Status (5)

Country Link
US (1) US5151936A (fr)
EP (1) EP0400394B1 (fr)
AT (1) ATE141458T1 (fr)
CA (1) CA2017694C (fr)
DE (1) DE59010447D1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008450A1 (de) * 1990-03-16 1991-09-19 Telefonbau & Normalzeit Gmbh Schaltungsanordnung zur signal- und informationsumsetzung zwischen analog betriebenen verbindungsleitungen und digital betriebenen anschlussorganen in kommunikations-vermittlungsanlagen
DE4308783C1 (de) * 1993-03-19 1994-03-17 Kommunikations Elektronik Schaltungsanordnung zur Übertragung nachrichtentechnischer Signale
US5347544A (en) * 1993-05-03 1994-09-13 Teltrend Inc. Gain or loss compensation circuit for telephone lines
US5422950A (en) * 1993-05-03 1995-06-06 Teltrend Inc. Remote terminal channel unit for telephone transmission lines
US5357569A (en) * 1993-05-03 1994-10-18 Teltrend Inc. Trans-hybrid loss compensator for on hook transmission
FI96257C (fi) * 1994-04-13 1996-05-27 Nokia Telecommunications Oy Menetelmä radiotaajuisen signaalin vaihevirheen määrittämiseksi, sekä vastaanotin
US5912964A (en) * 1996-03-27 1999-06-15 Hello Direct, Inc. Adaptive telephone handset interface
US5892823A (en) * 1996-03-27 1999-04-06 Hello Direct, Inc. Smart interface technology
US6343126B1 (en) 1996-03-27 2002-01-29 Hello Direct, Inc. Method and apparatus for interfacing analog telephone apparatus to a digital, analog or hybrid telephone switching system
US7031454B1 (en) 1997-11-06 2006-04-18 Hello Direct, Inc. Method and apparatus for interfacing telephone apparatus to a digital, analog or hybrid telephone switching system
WO2008009575A2 (fr) * 2006-07-17 2008-01-24 Ciba Holding Inc. Bases photolatentes pour adhésifs
GB201620317D0 (en) * 2016-11-30 2017-01-11 Microsoft Technology Licensing Llc Audio signal processing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110565A (en) * 1977-07-27 1978-08-29 Harvey Hubbell, Incorporated Duplex telephone signalling system
US4126765A (en) * 1977-12-12 1978-11-21 Gte Automatic Electric Laboratories Incorporated Detector circuit for sensing battery polarity and loop closure
JPS5938776Y2 (ja) * 1977-12-23 1984-10-29 日本電気株式会社 ディジタル形ト−ン信号検出器
US4310725A (en) * 1980-01-17 1982-01-12 Solid State Systems, Inc. Interface for private branch exchange
US4563547A (en) * 1983-03-07 1986-01-07 At&T Bell Laboratories Loop-start/ground-start line interface circuit
DE3624862A1 (de) * 1986-07-23 1988-01-28 Siemens Ag Schaltungsanordnung fuer einen amtssatz in einer fernsprechnebenstellenanlage
US4930153A (en) * 1988-03-18 1990-05-29 Nicollet Technologies, Inc. PBX voice mail interface
US4914690A (en) * 1988-03-31 1990-04-03 Nicollet Technologies, Inc. Universal PBX interface
JPH02220054A (ja) * 1989-02-22 1990-09-03 Konica Corp 感光性平版印刷版の現像処理方法及び装置
US4907261A (en) * 1989-02-28 1990-03-06 International Business Machines Corporation Universal DC signalling detector

Also Published As

Publication number Publication date
CA2017694C (fr) 1999-12-14
EP0400394A2 (fr) 1990-12-05
US5151936A (en) 1992-09-29
EP0400394A3 (fr) 1992-04-29
EP0400394B1 (fr) 1996-08-14
ATE141458T1 (de) 1996-08-15
DE59010447D1 (de) 1996-09-19

Similar Documents

Publication Publication Date Title
EP0139405A3 (fr) Système de transmission de données
CA2017694A1 (fr) Dispositif d'interface
EP0242030A3 (fr) Système téléphonique distribué
WO1997020396A3 (fr) Ensemble diviseur de telephonie traditionnelle a perte par reflexion amelioree, destinee a une boucle numerique d'abonne
IL89461A0 (en) Telecommunication compression system
HUT56672A (en) Digital telecommunication transmission system with coding of digital signal per subband
MY107138A (en) Adaptive video signal noise reduction system.
TW223203B (fr)
CA2006140A1 (fr) Dispositif de communication connecte a une ligne telephonique avec un poste telephonique
CA2055794A1 (fr) Attenuateur auxiliaire pour telephone a haut-parleur a commutation vocale et methode d'introduction selective d'affaiblissements de signal dans les circuits d'un telephone a haut-parleur
JPS5462706A (en) Procedure and device for transmitting telephone signal and video signal commonly via digital telephone channel
CA2091067A1 (fr) Systeme d'alarme et de verification pour ligne telephonique principale numerique
JPS5528606A (en) Transmission system of subscriber line
AU535624B2 (en) Digital telephone station
EP0100169A3 (fr) Système de transmission numérique à l'alternat
JPS55109043A (en) Call piling system for optical data transmission
EP0443189A3 (en) Data transmission system with a subscriber equipment for forwarding call signals or data to a radio receiver
JPS55135407A (en) Sound volume adjustor for speaker
DE3171172D1 (en) Transmitting and receiving device for the transmission of digital signals
GB2194710B (en) Audio band modulator/demodulator device for reception and transmission of digital data with recognition of standard communication systems by calling device
CA2279538A1 (fr) Filtre analogique passif pour interface de reseau
CA2350281A1 (fr) Systeme d'alarme et de verification pour ligne telephonique principale numerique
JPS5781758A (en) Signal transmitting system of switchboard
JPS55143479A (en) Automatic calling/answering unit for rainfall alarm
IT1221185B (it) Sistema centralizzato di controllo a distanza di stati processi o avarie su ascensori montacarichi scale mobili e affini

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed