ATE419683T1 - Regelung von echoentzerrern in einem telekommunikationssystem - Google Patents

Regelung von echoentzerrern in einem telekommunikationssystem

Info

Publication number
ATE419683T1
ATE419683T1 AT00960743T AT00960743T ATE419683T1 AT E419683 T1 ATE419683 T1 AT E419683T1 AT 00960743 T AT00960743 T AT 00960743T AT 00960743 T AT00960743 T AT 00960743T AT E419683 T1 ATE419683 T1 AT E419683T1
Authority
AT
Austria
Prior art keywords
echo
call
echo canceling
equalizers
control
Prior art date
Application number
AT00960743T
Other languages
English (en)
Inventor
Jari Eikkula
Original Assignee
Nokia Corp
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 Corp filed Critical Nokia Corp
Application granted granted Critical
Publication of ATE419683T1 publication Critical patent/ATE419683T1/de

Links

Classifications

    • 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
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13098—Mobile subscriber
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13109—Initializing, personal profile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13141—Hunting for free outlet, circuit or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13176—Common channel signaling, CCS7
    • 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
    • H04Q2213/13209—ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13345—Intelligent networks, SCP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13377—Recorded announcement

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Prostheses (AREA)
AT00960743T 1999-09-24 2000-09-22 Regelung von echoentzerrern in einem telekommunikationssystem ATE419683T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI992054A FI19992054A (fi) 1999-09-24 1999-09-24 Kaiunpoistajien ohjaus tietoliikennejärjestelmässä

Publications (1)

Publication Number Publication Date
ATE419683T1 true ATE419683T1 (de) 2009-01-15

Family

ID=8555347

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00960743T ATE419683T1 (de) 1999-09-24 2000-09-22 Regelung von echoentzerrern in einem telekommunikationssystem

Country Status (9)

Country Link
US (1) US7068779B1 (de)
EP (1) EP1214799B1 (de)
JP (1) JP3928926B2 (de)
CN (1) CN100379167C (de)
AT (1) ATE419683T1 (de)
AU (1) AU7294100A (de)
DE (1) DE60041268D1 (de)
FI (1) FI19992054A (de)
WO (1) WO2001022612A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1301018A1 (de) * 2001-10-02 2003-04-09 Alcatel Verfahren und Vorrichtung zum Ändern eines digitalen Signals im Kodebereich
CN100557994C (zh) * 2005-09-14 2009-11-04 华为技术有限公司 交换机中实现回声抵消的装置和方法
CN101453453B (zh) * 2007-12-04 2011-08-03 华为技术有限公司 实现呼叫保持的方法及设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0775140A (ja) 1993-08-31 1995-03-17 Nippon Telegr & Teleph Corp <Ntt> エコー除去回路の挿入接続制御方法
JPH0955964A (ja) * 1995-08-10 1997-02-25 Fujitsu Ltd 交換システム
US5953658A (en) * 1997-01-08 1999-09-14 Paradyne Corporation System and method for eliminating offset echo in a data connection over a cellular cordless telephone service
JPH10257173A (ja) 1997-03-12 1998-09-25 Hitachi Ltd インテリジェントネットワークにおける情報提供方法
ATE257633T1 (de) * 1997-11-28 2004-01-15 Cit Alcatel Verfahren zur steuerung eines echokompensators in einem datenkanal

Also Published As

Publication number Publication date
CN100379167C (zh) 2008-04-02
EP1214799B1 (de) 2008-12-31
JP2003510886A (ja) 2003-03-18
AU7294100A (en) 2001-04-24
DE60041268D1 (de) 2009-02-12
CN1376340A (zh) 2002-10-23
US7068779B1 (en) 2006-06-27
WO2001022612A1 (en) 2001-03-29
JP3928926B2 (ja) 2007-06-13
EP1214799A1 (de) 2002-06-19
FI19992054A (fi) 2001-03-24

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Legal Events

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