CN101425824A - 回波消除 - Google Patents
回波消除 Download PDFInfo
- Publication number
- CN101425824A CN101425824A CNA200810168005XA CN200810168005A CN101425824A CN 101425824 A CN101425824 A CN 101425824A CN A200810168005X A CNA200810168005X A CN A200810168005XA CN 200810168005 A CN200810168005 A CN 200810168005A CN 101425824 A CN101425824 A CN 101425824A
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- signal
- digital
- circuit
- echo
- path
- Prior art date
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 10
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Images
Classifications
-
- 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
- H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Analogue/Digital Conversion (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (21)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/856071 | 2007-09-17 | ||
US11/856,071 US8027279B2 (en) | 2007-09-17 | 2007-09-17 | Echo cancellation |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101425824A true CN101425824A (zh) | 2009-05-06 |
CN101425824B CN101425824B (zh) | 2016-10-05 |
Family
ID=40348801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200810168005.XA Active CN101425824B (zh) | 2007-09-17 | 2008-09-17 | 回波消除电路、用于回波消除的方法以及收发器电路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8027279B2 (zh) |
CN (1) | CN101425824B (zh) |
DE (1) | DE102008046308B4 (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101888252A (zh) * | 2010-04-20 | 2010-11-17 | 宁波成电泰克电子信息技术发展有限公司 | 一种提高rf系统中动态范围的方法及系统 |
CN103347138A (zh) * | 2013-06-21 | 2013-10-09 | 苏州鼎富软件科技有限公司 | 网络对话回音消除方法 |
WO2021027316A1 (zh) * | 2019-08-15 | 2021-02-18 | 华为技术有限公司 | 一种噪声信号处理装置和处理方法 |
CN112671351A (zh) * | 2020-12-17 | 2021-04-16 | 深圳市国微电子有限公司 | 一种应用于千兆以太网接收器系统的模拟前端电路 |
CN113206679A (zh) * | 2020-01-16 | 2021-08-03 | 瑞昱半导体股份有限公司 | 收发器及操作收发器的方法 |
CN114499813A (zh) * | 2020-11-12 | 2022-05-13 | 安华高科技股份有限公司 | 在全双工收发器中消除发射信号回波的系统及方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8027279B2 (en) * | 2007-09-17 | 2011-09-27 | Lantiq Deutschland Gmbh | Echo cancellation |
US8295214B2 (en) * | 2010-04-22 | 2012-10-23 | Plx Technology, Inc. | Reducing transmit signal components of a receive signal of a transceiver |
US8254490B2 (en) * | 2010-07-19 | 2012-08-28 | Plx Technology, Inc. | Reducing transmit signal components of a receive signal of a transceiver using a shared DAC architecture |
CN113328766B (zh) * | 2021-08-02 | 2021-11-09 | 北京国科天迅科技有限公司 | 回波消除电路 |
Family Cites Families (34)
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JPH0616592B2 (ja) | 1985-12-23 | 1994-03-02 | 富士通株式会社 | Fdmモデム |
DE58907787D1 (de) * | 1989-06-16 | 1994-07-07 | Siemens Ag | Verfahren und Anordnung zur Verbesserung des Dynamikbereichs eines adaptiven rekursiven Netzwerks zur Verarbeitung zeitdiskreter Signale. |
JP3158414B2 (ja) * | 1990-06-25 | 2001-04-23 | 日本電気株式会社 | エコーキャンセラ |
US5521949A (en) * | 1992-05-29 | 1996-05-28 | At&T Corp. | Synchronization scheme for digital communications systems transporting data at a customer-controlled rate |
US6618480B1 (en) | 1997-04-30 | 2003-09-09 | Texas Instruments Incorporated | DAC architecture for analog echo cancellation |
US6201796B1 (en) * | 1998-05-14 | 2001-03-13 | Broadcom Corporation | Startup protocol for high throughput communications systems |
US6300892B2 (en) * | 1998-07-07 | 2001-10-09 | Infineon Technologies Ag | Linearized multibit digital/analog converter and its use in a multibit delta-sigma analog/digital converter |
US6373908B2 (en) * | 1998-11-11 | 2002-04-16 | Broadcom Corporation | Adaptive electronic transmission signal cancellation apparatus for full duplex communication |
KR100561390B1 (ko) * | 1999-08-27 | 2006-03-16 | 삼성전자주식회사 | 디지털 에코 제거장치 |
JP2001126306A (ja) | 1999-10-29 | 2001-05-11 | Olympus Optical Co Ltd | 光磁気ピックアップ |
US6754187B1 (en) * | 2000-04-06 | 2004-06-22 | Inter-Tel, Inc. | Performance enhancement system for digital PBX |
US6795494B1 (en) * | 2000-05-12 | 2004-09-21 | National Semiconductor Corporation | Receiver architecture using mixed analog and digital signal processing and method of operation |
US6983047B1 (en) * | 2000-08-29 | 2006-01-03 | Lucent Technologies Inc. | Echo canceling system for a bit pump and method of operating the same |
DE10050336C1 (de) * | 2000-10-11 | 2002-07-25 | Infineon Technologies Ag | Programmierbares Echokompensationsfilter und Transceiver für xDSL-Signale |
US6611594B1 (en) * | 2000-10-25 | 2003-08-26 | Agere Systems, Inc. | Robust signed regressor PNLMS method and apparatus for network echo cancellation |
US6987782B2 (en) * | 2001-04-06 | 2006-01-17 | Agere Systems, Inc. | Method and apparatus for detecting robbed bit location in PCM modems and the like |
US7180869B2 (en) * | 2001-08-30 | 2007-02-20 | Avaya Technology Corp. | Comprehensive echo control system |
US7039362B2 (en) * | 2001-09-27 | 2006-05-02 | General Electric Company | Wireless transceiver and method for remote ultrasonic measurements |
EP1318641A3 (en) * | 2001-12-10 | 2006-10-04 | Alps Electric Co., Ltd. | Carrier recovery with antenna diversity |
US6978012B2 (en) * | 2002-01-02 | 2005-12-20 | Intel Corporation | Echo cancellation using a variable offset comparator |
US7027593B2 (en) * | 2002-05-22 | 2006-04-11 | Avaya Technology Corp. | Apparatus and method for echo control |
KR100502414B1 (ko) * | 2002-11-22 | 2005-07-19 | 삼성전자주식회사 | 에이디에스엘 시스템의 에코 제거기 및 그것의 트레이닝방법 |
US7082157B2 (en) * | 2002-12-24 | 2006-07-25 | Realtek Semiconductor Corp. | Residual echo reduction for a full duplex transceiver |
US7065207B2 (en) * | 2003-09-11 | 2006-06-20 | Freescale Semiconductor, Inc. | Controlling attenuation during echo suppression |
TWI271975B (en) * | 2003-10-23 | 2007-01-21 | Realtek Semiconductor Corp | Echo cancellation device for gigabit full duplex communication systems |
JP4455015B2 (ja) * | 2003-11-07 | 2010-04-21 | Necエレクトロニクス株式会社 | キャンセラ回路及び制御方法 |
DE602004012266D1 (de) * | 2004-09-29 | 2008-04-17 | St Microelectronics Srl | Gerät zur Digital/Analogwandlung eines Signals |
EP1643649A1 (en) * | 2004-09-29 | 2006-04-05 | STMicroelectronics S.r.l. | Phase locked loop |
US20090041258A1 (en) * | 2004-11-12 | 2009-02-12 | Tatsumi Nakajima | Noise reduction apparatus |
US7536007B2 (en) * | 2004-12-30 | 2009-05-19 | Alcatel Lucent | Echo cancellation using adaptive IIR and FIR filters |
US8045702B2 (en) * | 2005-04-05 | 2011-10-25 | Realtek Semiconductor Corp. | Multi-path active hybrid circuit |
DE102005034506B4 (de) * | 2005-07-20 | 2007-11-22 | Infineon Technologies Ag | Verfahren und System zur Fehlerbeseitigung |
US7129871B1 (en) | 2005-08-09 | 2006-10-31 | Broadcom Corporation | Digital-to-analog converter with programmable current control |
US8027279B2 (en) * | 2007-09-17 | 2011-09-27 | Lantiq Deutschland Gmbh | Echo cancellation |
-
2007
- 2007-09-17 US US11/856,071 patent/US8027279B2/en active Active
-
2008
- 2008-09-09 DE DE102008046308.6A patent/DE102008046308B4/de active Active
- 2008-09-17 CN CN200810168005.XA patent/CN101425824B/zh active Active
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101888252A (zh) * | 2010-04-20 | 2010-11-17 | 宁波成电泰克电子信息技术发展有限公司 | 一种提高rf系统中动态范围的方法及系统 |
CN101888252B (zh) * | 2010-04-20 | 2013-04-10 | 宁波成电泰克电子信息技术发展有限公司 | 一种提高rf系统中动态范围的方法及系统 |
CN103347138A (zh) * | 2013-06-21 | 2013-10-09 | 苏州鼎富软件科技有限公司 | 网络对话回音消除方法 |
WO2021027316A1 (zh) * | 2019-08-15 | 2021-02-18 | 华为技术有限公司 | 一种噪声信号处理装置和处理方法 |
CN113206679A (zh) * | 2020-01-16 | 2021-08-03 | 瑞昱半导体股份有限公司 | 收发器及操作收发器的方法 |
CN113206679B (zh) * | 2020-01-16 | 2022-06-24 | 瑞昱半导体股份有限公司 | 收发器及操作收发器的方法 |
CN114499813A (zh) * | 2020-11-12 | 2022-05-13 | 安华高科技股份有限公司 | 在全双工收发器中消除发射信号回波的系统及方法 |
CN112671351A (zh) * | 2020-12-17 | 2021-04-16 | 深圳市国微电子有限公司 | 一种应用于千兆以太网接收器系统的模拟前端电路 |
CN112671351B (zh) * | 2020-12-17 | 2023-12-15 | 深圳市国微电子有限公司 | 一种应用于千兆以太网接收器系统的模拟前端电路 |
Also Published As
Publication number | Publication date |
---|---|
US8027279B2 (en) | 2011-09-27 |
CN101425824B (zh) | 2016-10-05 |
US20090073903A1 (en) | 2009-03-19 |
DE102008046308B4 (de) | 2014-07-17 |
DE102008046308A1 (de) | 2009-03-19 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: LINGTE GERMANY CO., LTD. Free format text: FORMER OWNER: INFINEON TECHNOLOGY WIRELESS TECHNOLOGY CO., LTD. Effective date: 20130522 Owner name: INFINEON TECHNOLOGY WIRELESS TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: INFINEON TECHNOLOGIES AG Effective date: 20130522 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20130522 Address after: German Berg, Laura Ibiza Applicant after: Lantiq Deutschland GmbH Address before: German Neubiberg Applicant before: Infineon Technologies wireless Ltd. Effective date of registration: 20130522 Address after: German Neubiberg Applicant after: Infineon Technologies wireless Ltd. Address before: German Neubiberg Applicant before: Infineon Technologies AG |
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C14 | Grant of patent or utility model | ||
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TR01 | Transfer of patent right |
Effective date of registration: 20180504 Address after: German Neubiberg Patentee after: LANTIQ BETEILIGUNGS GmbH & Co.KG Address before: German Berg, Laura Ibiza Patentee before: Lantiq Deutschland GmbH |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200806 Address after: California, USA Patentee after: INTEL Corp. Address before: German Neubiberg Patentee before: LANTIQ BETEILIGUNGS GmbH & Co.KG |