ATE345642T1 - Verbessertes verfahren und vorrichtung zur implementierung eines echounterdrückers - Google Patents

Verbessertes verfahren und vorrichtung zur implementierung eines echounterdrückers

Info

Publication number
ATE345642T1
ATE345642T1 AT01906733T AT01906733T ATE345642T1 AT E345642 T1 ATE345642 T1 AT E345642T1 AT 01906733 T AT01906733 T AT 01906733T AT 01906733 T AT01906733 T AT 01906733T AT E345642 T1 ATE345642 T1 AT E345642T1
Authority
AT
Austria
Prior art keywords
attenuation
acoustic
attenuation value
waveform
signal
Prior art date
Application number
AT01906733T
Other languages
English (en)
Inventor
Samir K Gupta
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE345642T1 publication Critical patent/ATE345642T1/de

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Paper (AREA)
AT01906733T 2000-01-27 2001-01-26 Verbessertes verfahren und vorrichtung zur implementierung eines echounterdrückers ATE345642T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/491,933 US6606382B2 (en) 2000-01-27 2000-01-27 System and method for implementation of an echo canceller

Publications (1)

Publication Number Publication Date
ATE345642T1 true ATE345642T1 (de) 2006-12-15

Family

ID=23954269

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01906733T ATE345642T1 (de) 2000-01-27 2001-01-26 Verbessertes verfahren und vorrichtung zur implementierung eines echounterdrückers

Country Status (18)

Country Link
US (1) US6606382B2 (de)
EP (2) EP1750425A3 (de)
JP (1) JP2003521170A (de)
KR (1) KR100711869B1 (de)
CN (1) CN1254074C (de)
AT (1) ATE345642T1 (de)
AU (1) AU3460601A (de)
BR (1) BR0107830A (de)
CA (1) CA2399016C (de)
DE (1) DE60124501T2 (de)
ES (1) ES2274867T3 (de)
HK (1) HK1052602B (de)
IL (2) IL150823A0 (de)
MX (1) MXPA02007215A (de)
NO (1) NO20023569L (de)
RU (1) RU2277301C2 (de)
TW (1) TW494669B (de)
WO (1) WO2001056263A1 (de)

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US9318090B2 (en) 2012-05-10 2016-04-19 Cirrus Logic, Inc. Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system
US9319781B2 (en) 2012-05-10 2016-04-19 Cirrus Logic, Inc. Frequency and direction-dependent ambient sound handling in personal audio devices having adaptive noise cancellation (ANC)
US9532139B1 (en) 2012-09-14 2016-12-27 Cirrus Logic, Inc. Dual-microphone frequency amplitude response self-calibration
CN102904538B (zh) * 2012-10-10 2015-02-04 华平信息技术股份有限公司 音频模拟信号的agc增益参数调整方法
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US9369798B1 (en) 2013-03-12 2016-06-14 Cirrus Logic, Inc. Internal dynamic range control in an adaptive noise cancellation (ANC) system
US9414150B2 (en) 2013-03-14 2016-08-09 Cirrus Logic, Inc. Low-latency multi-driver adaptive noise canceling (ANC) system for a personal audio device
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US9674368B2 (en) * 2013-03-19 2017-06-06 Koninklijke Philips N.V. Method and apparatus for audio processing
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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US9478210B2 (en) 2013-04-17 2016-10-25 Cirrus Logic, Inc. Systems and methods for hybrid adaptive noise cancellation
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US10219071B2 (en) 2013-12-10 2019-02-26 Cirrus Logic, Inc. Systems and methods for bandlimiting anti-noise in personal audio devices having adaptive noise cancellation
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Also Published As

Publication number Publication date
WO2001056263A1 (en) 2001-08-02
HK1052602A1 (en) 2003-09-19
HK1052602B (zh) 2006-12-08
EP1250797B1 (de) 2006-11-15
EP1250797A1 (de) 2002-10-23
CN1416639A (zh) 2003-05-07
NO20023569L (no) 2002-09-24
JP2003521170A (ja) 2003-07-08
CA2399016A1 (en) 2001-08-02
DE60124501D1 (de) 2006-12-28
RU2002122984A (ru) 2004-02-27
TW494669B (en) 2002-07-11
RU2277301C2 (ru) 2006-05-27
EP1750425A2 (de) 2007-02-07
ES2274867T3 (es) 2007-06-01
KR100711869B1 (ko) 2007-04-25
US20030072439A1 (en) 2003-04-17
CA2399016C (en) 2009-09-22
MXPA02007215A (es) 2003-02-12
CN1254074C (zh) 2006-04-26
IL150823A0 (en) 2003-02-12
US6606382B2 (en) 2003-08-12
DE60124501T2 (de) 2007-09-06
EP1750425A3 (de) 2008-08-13
AU3460601A (en) 2001-08-07
NO20023569D0 (no) 2002-07-26
BR0107830A (pt) 2003-03-18
KR20020071967A (ko) 2002-09-13
IL150823A (en) 2007-12-03

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