AU1674799A - An apparatus for interfacing a multi-channel digital link and a plurality of analog lines - Google Patents

An apparatus for interfacing a multi-channel digital link and a plurality of analog lines

Info

Publication number
AU1674799A
AU1674799A AU16747/99A AU1674799A AU1674799A AU 1674799 A AU1674799 A AU 1674799A AU 16747/99 A AU16747/99 A AU 16747/99A AU 1674799 A AU1674799 A AU 1674799A AU 1674799 A AU1674799 A AU 1674799A
Authority
AU
Australia
Prior art keywords
interfacing
channel digital
digital link
analog lines
analog
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.)
Abandoned
Application number
AU16747/99A
Other languages
English (en)
Inventor
Luca Vicini
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.)
Nokia Oyj
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of AU1674799A publication Critical patent/AU1674799A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/002—Applications of echo suppressors or cancellers in telephonic connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13031—Pulse code modulation, PCM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1305—Software aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13107—Control equipment for a part of the connection, distributed control, co-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1319—Amplifier, attenuation circuit, echo suppressor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13292—Time division multiplexing, TDM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13396—Signaling in general, in-band signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13405—Dual frequency signaling, DTMF

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
AU16747/99A 1997-12-19 1998-12-18 An apparatus for interfacing a multi-channel digital link and a plurality of analog lines Abandoned AU1674799A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI974579A FI105642B (fi) 1997-12-19 1997-12-19 Laite monikanavaisen digitaalisen yhteyden ja useiden analogisten linjojen liittämiseksi toisiinsa
FI974579 1997-12-19
PCT/FI1998/000998 WO1999033311A1 (en) 1997-12-19 1998-12-18 An apparatus for interfacing a multi-channel digital link and a plurality of analog lines

Publications (1)

Publication Number Publication Date
AU1674799A true AU1674799A (en) 1999-07-12

Family

ID=8550179

Family Applications (1)

Application Number Title Priority Date Filing Date
AU16747/99A Abandoned AU1674799A (en) 1997-12-19 1998-12-18 An apparatus for interfacing a multi-channel digital link and a plurality of analog lines

Country Status (3)

Country Link
AU (1) AU1674799A (fi)
FI (1) FI105642B (fi)
WO (1) WO1999033311A1 (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1353527A1 (de) * 2002-04-09 2003-10-15 Siemens AG Signalverarbeitungseinheit mit seriellen Zeitmultiplexverbindungen zwischen Signalverarbeitungs- und Steuermitteln
CN111025968B (zh) * 2019-12-05 2022-09-27 深圳震有科技股份有限公司 Dsp收号故障检测处理方法及装置、计算机设备、介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178479A (en) * 1978-02-06 1979-12-11 Trw, Inc. Communication processor apparatus for use in a TDM switching system
FR2443781A1 (fr) * 1978-12-08 1980-07-04 Cochennec Jean Yves Systeme de raccordement de lignes d'abonnes a un autocommutateur telephonique temporel
GB2185657B (en) * 1986-01-22 1989-11-01 Stc Plc Automatic telecommunication system
GB2213024B (en) * 1987-11-24 1991-07-31 Stc Plc Data transmission system
FR2641093B1 (fi) * 1988-12-23 1994-04-29 Alcatel Business Systems

Also Published As

Publication number Publication date
WO1999033311A1 (en) 1999-07-01
FI105642B (fi) 2000-09-15
FI974579A0 (fi) 1997-12-19
FI974579A (fi) 1999-06-20

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase