CN1780165B - 一种回声消除装置和方法 - Google Patents
一种回声消除装置和方法 Download PDFInfo
- Publication number
- CN1780165B CN1780165B CN 200410091603 CN200410091603A CN1780165B CN 1780165 B CN1780165 B CN 1780165B CN 200410091603 CN200410091603 CN 200410091603 CN 200410091603 A CN200410091603 A CN 200410091603A CN 1780165 B CN1780165 B CN 1780165B
- Authority
- CN
- China
- Prior art keywords
- input signal
- end input
- module
- near end
- noise
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008030 elimination Effects 0.000 title description 5
- 238000003379 elimination reaction Methods 0.000 title description 5
- 230000011664 signaling Effects 0.000 claims description 63
- 230000008859 change Effects 0.000 claims description 23
- 230000011218 segmentation Effects 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
Claims (21)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200410091603 CN1780165B (zh) | 2004-11-23 | 2004-11-23 | 一种回声消除装置和方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200410091603 CN1780165B (zh) | 2004-11-23 | 2004-11-23 | 一种回声消除装置和方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1780165A CN1780165A (zh) | 2006-05-31 |
CN1780165B true CN1780165B (zh) | 2011-07-27 |
Family
ID=36770305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200410091603 Expired - Fee Related CN1780165B (zh) | 2004-11-23 | 2004-11-23 | 一种回声消除装置和方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1780165B (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100524467C (zh) * | 2006-07-17 | 2009-08-05 | 深圳市迪威新软件技术有限公司 | 会议电视***的回声处理方法 |
JP5076783B2 (ja) * | 2007-09-28 | 2012-11-21 | ヤマハ株式会社 | エコー除去装置 |
CN101820302B (zh) * | 2009-02-27 | 2013-10-30 | 比亚迪股份有限公司 | 一种回声消除装置 |
CN102223157B (zh) * | 2010-04-16 | 2013-12-18 | 联芯科技有限公司 | 残留回声消除器和残留回声消除方法 |
CN103533193B (zh) * | 2012-07-04 | 2016-07-06 | 中兴通讯股份有限公司 | 残留回波消除方法及装置 |
US10594358B2 (en) | 2017-04-21 | 2020-03-17 | Futurewei Technologies, Inc. | Leakage signal cancellation |
CN109286730A (zh) * | 2017-07-20 | 2019-01-29 | 阿里巴巴集团控股有限公司 | 一种回声检测的方法、装置及*** |
CN111246034B (zh) * | 2020-01-13 | 2022-02-18 | 深圳震有科技股份有限公司 | 一种智能话机信号处理方法、信号处理器及存储介质 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1223036A (zh) * | 1996-06-19 | 1999-07-14 | 诺基亚电信公司 | 回波消除器中的回波抑制器和非线性处理器 |
-
2004
- 2004-11-23 CN CN 200410091603 patent/CN1780165B/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1223036A (zh) * | 1996-06-19 | 1999-07-14 | 诺基亚电信公司 | 回波消除器中的回波抑制器和非线性处理器 |
Also Published As
Publication number | Publication date |
---|---|
CN1780165A (zh) | 2006-05-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101017766B1 (ko) | 핸드 프리 장치에서의 스펙트럼 도메인 비선형 반향 제거방법 | |
US6574336B1 (en) | Echo suppressor and non-linear processor of echo canceller | |
US6928160B2 (en) | Estimating bulk delay in a telephone system | |
US8861713B2 (en) | Clipping based on cepstral distance for acoustic echo canceller | |
US6792107B2 (en) | Double-talk detector suitable for a telephone-enabled PC | |
US8098812B2 (en) | Method of controlling an adaptation of a filter | |
CN103077726B (zh) | 用于线性声学回声消除***的预处理和后处理 | |
JP2006191650A (ja) | エコー打消装置においてエコーの位置を決定する方法 | |
EP2059014B1 (en) | Echo canceller and echo cancelling program | |
JPS62107533A (ja) | 伝送回路網 | |
JPH03113923A (ja) | エコー補償装置 | |
EP0853844B1 (en) | Echo cancelling system for digital telephony applications | |
AU5291893A (en) | Network echo canceller | |
US8199907B2 (en) | Echo canceller and echo cancelling method and program | |
WO2005043772A1 (ja) | エコーキャンセラ | |
WO1995031051A1 (fr) | Compensateur d'echo et son procede d'apprentissage | |
US6757384B1 (en) | Robust double-talk detection and recovery in a system for echo cancelation | |
CN1780165B (zh) | 一种回声消除装置和方法 | |
JP2001521705A (ja) | 接続の両側のエコーを制御する方法と装置 | |
US20070058798A1 (en) | Echo canceller | |
CN111355855A (zh) | 回声处理方法、装置、设备及存储介质 | |
KR100272131B1 (ko) | 계층적 구조의 적응반향 제거장치 | |
Puder et al. | Implementation of a hands-free car phone with echo cancellation and noise-dependent loss control | |
JP3303524B2 (ja) | エコーキャンセラ学習方法 | |
EP2223522B1 (en) | Non linear acoustic feedback suppression in a telephone device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200427 Address after: 310000 Room 606, building 1, No. 51, Jiusheng Road, Jianggan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou sound energy technology Co.,Ltd. Address before: 518000 Baoan District Xin'an street, Shenzhen, Guangdong, No. 625, No. 625, Nuo platinum Plaza, Patentee before: SHENZHEN SHANGGE INTELLECTUAL PROPERTY SERVICE Co.,Ltd. Effective date of registration: 20200427 Address after: 518000 Baoan District Xin'an street, Shenzhen, Guangdong, No. 625, No. 625, Nuo platinum Plaza, Patentee after: SHENZHEN SHANGGE INTELLECTUAL PROPERTY SERVICE Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 |
|
CF01 | Termination of patent right due to non-payment of annual fee |