JP5321372B2 - エコーキャンセラ - Google Patents

エコーキャンセラ Download PDF

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Publication number
JP5321372B2
JP5321372B2 JP2009208337A JP2009208337A JP5321372B2 JP 5321372 B2 JP5321372 B2 JP 5321372B2 JP 2009208337 A JP2009208337 A JP 2009208337A JP 2009208337 A JP2009208337 A JP 2009208337A JP 5321372 B2 JP5321372 B2 JP 5321372B2
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Japan
Prior art keywords
echo
signal
frequency
unit
adaptive filter
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Expired - Fee Related
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JP2009208337A
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Japanese (ja)
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JP2011061449A (ja
JP2011061449A5 (enExample
Inventor
真資 高田
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Oki Electric Industry Co Ltd
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Oki Electric Industry Co Ltd
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Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP2009208337A priority Critical patent/JP5321372B2/ja
Priority to CN2010102088907A priority patent/CN102025395A/zh
Priority to US12/877,990 priority patent/US8280037B2/en
Publication of JP2011061449A publication Critical patent/JP2011061449A/ja
Publication of JP2011061449A5 publication Critical patent/JP2011061449A5/ja
Application granted granted Critical
Publication of JP5321372B2 publication Critical patent/JP5321372B2/ja
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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Filters That Use Time-Delay Elements (AREA)
JP2009208337A 2009-09-09 2009-09-09 エコーキャンセラ Expired - Fee Related JP5321372B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009208337A JP5321372B2 (ja) 2009-09-09 2009-09-09 エコーキャンセラ
CN2010102088907A CN102025395A (zh) 2009-09-09 2010-06-18 回波抵消器
US12/877,990 US8280037B2 (en) 2009-09-09 2010-09-08 Echo canceller having its effective filter taps adaptively controlled with echo cancellation amount monitored

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009208337A JP5321372B2 (ja) 2009-09-09 2009-09-09 エコーキャンセラ

Publications (3)

Publication Number Publication Date
JP2011061449A JP2011061449A (ja) 2011-03-24
JP2011061449A5 JP2011061449A5 (enExample) 2012-06-21
JP5321372B2 true JP5321372B2 (ja) 2013-10-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009208337A Expired - Fee Related JP5321372B2 (ja) 2009-09-09 2009-09-09 エコーキャンセラ

Country Status (3)

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US (1) US8280037B2 (enExample)
JP (1) JP5321372B2 (enExample)
CN (1) CN102025395A (enExample)

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US10206032B2 (en) 2013-04-10 2019-02-12 Cirrus Logic, Inc. Systems and methods for multi-mode adaptive noise cancellation for audio headsets
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CN111201712B (zh) * 2017-09-25 2023-04-21 全球硅片有限公司 自适应滤波器
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CN113067955B (zh) * 2019-12-13 2024-03-08 瑞昱半导体股份有限公司 通信装置及回音消除方法
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Publication number Publication date
US20110058667A1 (en) 2011-03-10
JP2011061449A (ja) 2011-03-24
CN102025395A (zh) 2011-04-20
US8280037B2 (en) 2012-10-02

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