DE60023515D1 - Akustisches echounterdrückungsgerät - Google Patents

Akustisches echounterdrückungsgerät

Info

Publication number
DE60023515D1
DE60023515D1 DE60023515T DE60023515T DE60023515D1 DE 60023515 D1 DE60023515 D1 DE 60023515D1 DE 60023515 T DE60023515 T DE 60023515T DE 60023515 T DE60023515 T DE 60023515T DE 60023515 D1 DE60023515 D1 DE 60023515D1
Authority
DE
Germany
Prior art keywords
filter
tne
signal
subtractor
output
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 - Lifetime
Application number
DE60023515T
Other languages
English (en)
Inventor
Ulf Lindgren
Mohan Misra
John Philipsson
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7916580&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE60023515(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to DE60023515T priority Critical patent/DE60023515D1/de
Application granted granted Critical
Publication of DE60023515D1 publication Critical patent/DE60023515D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • 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
    • H04B3/21—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a set of bandfilters
DE60023515T 1999-07-29 2000-07-28 Akustisches echounterdrückungsgerät Expired - Lifetime DE60023515D1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE60023515T DE60023515D1 (de) 1999-07-29 2000-07-28 Akustisches echounterdrückungsgerät

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19935808A DE19935808A1 (de) 1999-07-29 1999-07-29 Echounterdrückungseinrichtung zum Unterdrücken von Echos in einer Sender/Empfänger-Einheit
PCT/EP2000/007321 WO2001010102A2 (en) 1999-07-29 2000-07-28 Acoustical echo cancellation device
DE60023515T DE60023515D1 (de) 1999-07-29 2000-07-28 Akustisches echounterdrückungsgerät

Publications (1)

Publication Number Publication Date
DE60023515D1 true DE60023515D1 (de) 2005-12-01

Family

ID=7916580

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19935808A Ceased DE19935808A1 (de) 1999-07-29 1999-07-29 Echounterdrückungseinrichtung zum Unterdrücken von Echos in einer Sender/Empfänger-Einheit
DE60023515T Expired - Lifetime DE60023515D1 (de) 1999-07-29 2000-07-28 Akustisches echounterdrückungsgerät

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19935808A Ceased DE19935808A1 (de) 1999-07-29 1999-07-29 Echounterdrückungseinrichtung zum Unterdrücken von Echos in einer Sender/Empfänger-Einheit

Country Status (9)

Country Link
US (1) US6597787B1 (de)
EP (1) EP1208689B1 (de)
JP (1) JP2003506924A (de)
CN (1) CN1451225A (de)
AT (1) ATE308201T1 (de)
AU (1) AU6160800A (de)
DE (2) DE19935808A1 (de)
MY (1) MY133285A (de)
WO (1) WO2001010102A2 (de)

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CN109618380A (zh) * 2019-01-03 2019-04-12 中国联合网络通信集团有限公司 一种物联网网络重选方法、装置及系统
CN111863000A (zh) * 2019-04-30 2020-10-30 北京嘀嘀无限科技发展有限公司 音频处理方法、装置、电子设备及可读存储介质
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CN112946608A (zh) * 2021-01-29 2021-06-11 中国科学院半导体研究所 带背景光模拟的激光目标模拟器
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Also Published As

Publication number Publication date
AU6160800A (en) 2001-02-19
EP1208689A2 (de) 2002-05-29
CN1451225A (zh) 2003-10-22
WO2001010102A2 (en) 2001-02-08
WO2001010102A3 (en) 2002-03-14
ATE308201T1 (de) 2005-11-15
DE19935808A1 (de) 2001-02-08
MY133285A (en) 2007-10-31
US6597787B1 (en) 2003-07-22
EP1208689B1 (de) 2005-10-26
JP2003506924A (ja) 2003-02-18

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