KR20050021472A - 모델 부정합 보상을 하는 에코 상쇄장치 - Google Patents
모델 부정합 보상을 하는 에코 상쇄장치 Download PDFInfo
- Publication number
- KR20050021472A KR20050021472A KR10-2005-7000659A KR20057000659A KR20050021472A KR 20050021472 A KR20050021472 A KR 20050021472A KR 20057000659 A KR20057000659 A KR 20057000659A KR 20050021472 A KR20050021472 A KR 20050021472A
- Authority
- KR
- South Korea
- Prior art keywords
- interference
- canceller
- adaptive filter
- signal
- spectral
- 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.)
- Withdrawn
Links
- 230000003044 adaptive effect Effects 0.000 claims abstract description 36
- 230000003595 spectral effect Effects 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims abstract description 25
- 238000001228 spectrum Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000002592 echocardiography Methods 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02077868 | 2002-07-16 | ||
| EP02077868.4 | 2002-07-16 | ||
| PCT/IB2003/002863 WO2004008731A1 (en) | 2002-07-16 | 2003-06-23 | Echo canceller with model mismatch compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20050021472A true KR20050021472A (ko) | 2005-03-07 |
Family
ID=30011203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2005-7000659A Withdrawn KR20050021472A (ko) | 2002-07-16 | 2003-06-23 | 모델 부정합 보상을 하는 에코 상쇄장치 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20050175129A1 (enExample) |
| EP (1) | EP1523846A1 (enExample) |
| JP (1) | JP2005533427A (enExample) |
| KR (1) | KR20050021472A (enExample) |
| CN (1) | CN1669294A (enExample) |
| AU (1) | AU2003244935A1 (enExample) |
| WO (1) | WO2004008731A1 (enExample) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006040734A1 (en) | 2004-10-13 | 2006-04-20 | Koninklijke Philips Electronics N.V. | Echo cancellation |
| EP2078301A1 (fr) * | 2006-09-28 | 2009-07-15 | France Telecom | Reduction de bruit et de distorsion dans une structure de type forward |
| GB2479776B (en) | 2010-04-22 | 2012-08-29 | Eads Uk Ltd | Testing joints between composite and metal parts |
| US10056092B2 (en) | 2014-09-12 | 2018-08-21 | Nuance Communications, Inc. | Residual interference suppression |
| US10347273B2 (en) * | 2014-12-10 | 2019-07-09 | Nec Corporation | Speech processing apparatus, speech processing method, and recording medium |
| CN107872235B (zh) * | 2017-02-24 | 2019-08-20 | 珠海市杰理科技股份有限公司 | 降低无线通信集成电路中信号干扰的方法和装置 |
| US10594869B2 (en) * | 2017-08-03 | 2020-03-17 | Bose Corporation | Mitigating impact of double talk for residual echo suppressors |
| US10542153B2 (en) * | 2017-08-03 | 2020-01-21 | Bose Corporation | Multi-channel residual echo suppression |
| EP3692704B1 (en) | 2017-10-03 | 2023-09-06 | Bose Corporation | Spatial double-talk detector |
| CN108488036B (zh) * | 2018-05-04 | 2019-10-25 | 曲阜师范大学 | 基于模型失配补偿器的风电磁悬浮偏航系统悬浮控制方法 |
| US10964305B2 (en) | 2019-05-20 | 2021-03-30 | Bose Corporation | Mitigating impact of double talk for residual echo suppressors |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2947093B2 (ja) * | 1994-11-02 | 1999-09-13 | 日本電気株式会社 | 適応フィルタによるシステム同定の方法および装置 |
| WO1997045995A1 (en) * | 1996-05-31 | 1997-12-04 | Philips Electronics N.V. | Arrangement for suppressing an interfering component of an input signal |
| US6185300B1 (en) * | 1996-12-31 | 2001-02-06 | Ericsson Inc. | Echo canceler for use in communications system |
| US6510224B1 (en) * | 1999-05-20 | 2003-01-21 | Telefonaktiebolaget L M Ericsson | Enhancement of near-end voice signals in an echo suppression system |
| US7062039B1 (en) * | 1999-05-27 | 2006-06-13 | Telefonaktiebolaget Lm Ericsson | Methods and apparatus for improving adaptive filter performance by inclusion of inaudible information |
| US6526140B1 (en) * | 1999-11-03 | 2003-02-25 | Tellabs Operations, Inc. | Consolidated voice activity detection and noise estimation |
| US7054419B2 (en) * | 2001-01-02 | 2006-05-30 | Soundbite Communications, Inc. | Answering machine detection for voice message delivery method and system |
| US6950842B2 (en) * | 2002-01-23 | 2005-09-27 | Analog Devices, Inc. | Echo canceller having an adaptive filter with a dynamically adjustable step size |
-
2003
- 2003-06-23 KR KR10-2005-7000659A patent/KR20050021472A/ko not_active Withdrawn
- 2003-06-23 CN CNA038167573A patent/CN1669294A/zh active Pending
- 2003-06-23 US US10/520,870 patent/US20050175129A1/en not_active Abandoned
- 2003-06-23 WO PCT/IB2003/002863 patent/WO2004008731A1/en not_active Ceased
- 2003-06-23 AU AU2003244935A patent/AU2003244935A1/en not_active Abandoned
- 2003-06-23 JP JP2004520975A patent/JP2005533427A/ja active Pending
- 2003-06-23 EP EP03738409A patent/EP1523846A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004008731A1 (en) | 2004-01-22 |
| CN1669294A (zh) | 2005-09-14 |
| EP1523846A1 (en) | 2005-04-20 |
| JP2005533427A (ja) | 2005-11-04 |
| AU2003244935A1 (en) | 2004-02-02 |
| US20050175129A1 (en) | 2005-08-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0105 | International application |
Patent event date: 20050113 Patent event code: PA01051R01D Comment text: International Patent Application |
|
| PG1501 | Laying open of application | ||
| PC1203 | Withdrawal of no request for examination | ||
| WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |