CN101065907B - 回波消除系统及方法 - Google Patents
回波消除系统及方法 Download PDFInfo
- Publication number
- CN101065907B CN101065907B CN2005800408490A CN200580040849A CN101065907B CN 101065907 B CN101065907 B CN 101065907B CN 2005800408490 A CN2005800408490 A CN 2005800408490A CN 200580040849 A CN200580040849 A CN 200580040849A CN 101065907 B CN101065907 B CN 101065907B
- Authority
- CN
- China
- Prior art keywords
- signal
- frequency band
- echo
- receive
- sampled
- 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
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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)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
Claims (28)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US63114004P | 2004-11-29 | 2004-11-29 | |
US60/631,140 | 2004-11-29 | ||
US11/197,524 US7400693B2 (en) | 2004-11-29 | 2005-08-05 | System and method of echo cancellation |
US11/197,524 | 2005-08-05 | ||
PCT/US2005/030754 WO2006057683A2 (en) | 2004-11-29 | 2005-08-30 | System and method of echo cancellation |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101065907A CN101065907A (zh) | 2007-10-31 |
CN101065907B true CN101065907B (zh) | 2010-12-15 |
Family
ID=36498387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005800408490A Expired - Fee Related CN101065907B (zh) | 2004-11-29 | 2005-08-30 | 回波消除系统及方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7400693B2 (zh) |
EP (1) | EP1817847B8 (zh) |
CN (1) | CN101065907B (zh) |
WO (1) | WO2006057683A2 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7881403B2 (en) * | 2006-10-10 | 2011-02-01 | Futurewei Technologies, Inc. | System for realizing emergency rate adjustment |
US7928392B1 (en) * | 2009-10-07 | 2011-04-19 | T-Ray Science Inc. | Systems and methods for blind echo cancellation |
DE112013007077T5 (de) | 2013-05-14 | 2016-02-11 | Mitsubishi Electric Corporation | Echoauslöschungsvorrichtung |
US9473204B2 (en) * | 2015-03-09 | 2016-10-18 | Realtek Semiconductor Corporation | Full-duplex transceiver circuit and method thereof |
KR102369812B1 (ko) * | 2017-12-21 | 2022-03-04 | 한국전자통신연구원 | 대역내 전이중 송수신 방법 및 장치 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1142302A (zh) * | 1994-12-30 | 1997-02-05 | 马特端通讯法国公司 | 一种用子带滤波的声音回声消除器 |
US6421377B1 (en) * | 1998-05-13 | 2002-07-16 | Globespanvirata, Inc. | System and method for echo cancellation over asymmetric spectra |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7088818B2 (en) * | 1999-12-23 | 2006-08-08 | Analog Devices, Inc. | Configurable analog front end for communication systems |
US7113491B2 (en) | 2001-07-31 | 2006-09-26 | Conexant, Inc. | Method and system for varying an echo canceller filter length based on data rate |
US7274736B2 (en) * | 2001-10-24 | 2007-09-25 | Texas Instruments Incorporated | Multiple path equalization for multicarrier systems |
US20030112966A1 (en) | 2001-12-18 | 2003-06-19 | Bijit Halder | Method and system for implementing a reduced complexity dual rate echo canceller |
US20030118177A1 (en) * | 2001-12-18 | 2003-06-26 | Ahmet Karakas | Method and system for implementing a reduced complexity dual rate echo canceller |
US20030112887A1 (en) * | 2001-12-18 | 2003-06-19 | Sang Tzu Hsien | Method and system for implementing weighted vector error echo cancellers |
US7274732B2 (en) * | 2003-03-21 | 2007-09-25 | Texas Instruments Incorporated | Echo cancellation in communication systems with asymmetric data rates |
IL156018A0 (en) * | 2003-05-20 | 2003-12-23 | Surf Comm Solutions Ltd | Long range broadband modem |
-
2005
- 2005-08-05 US US11/197,524 patent/US7400693B2/en not_active Expired - Fee Related
- 2005-08-30 WO PCT/US2005/030754 patent/WO2006057683A2/en active Application Filing
- 2005-08-30 EP EP20050792707 patent/EP1817847B8/en not_active Not-in-force
- 2005-08-30 CN CN2005800408490A patent/CN101065907B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1142302A (zh) * | 1994-12-30 | 1997-02-05 | 马特端通讯法国公司 | 一种用子带滤波的声音回声消除器 |
US6421377B1 (en) * | 1998-05-13 | 2002-07-16 | Globespanvirata, Inc. | System and method for echo cancellation over asymmetric spectra |
Also Published As
Publication number | Publication date |
---|---|
EP1817847B8 (en) | 2015-04-22 |
WO2006057683A3 (en) | 2006-08-17 |
EP1817847B1 (en) | 2015-02-25 |
EP1817847A4 (en) | 2010-10-20 |
CN101065907A (zh) | 2007-10-31 |
WO2006057683A2 (en) | 2006-06-01 |
US7400693B2 (en) | 2008-07-15 |
US20060114976A1 (en) | 2006-06-01 |
EP1817847A2 (en) | 2007-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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: LCANO TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CONEXANT SYSTEMS INC. Effective date: 20100805 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: NEW JERSEY, USA TO: HUTCHINS AVENUE, GRAND CAYMAN ISLANDS, CAYMAN ISLANDS |
|
TA01 | Transfer of patent application right |
Effective date of registration: 20100805 Address after: Cayman Islands Grand Cayman Hutchins Avenue Applicant after: Ikanos Communications Inc Address before: American New Jersey Applicant before: Conexant Systems Inc. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: IKANOS COMMUNICATIONS INC. Free format text: FORMER OWNER: IKANOS COMMUNICATIONS INC Effective date: 20150427 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150427 Address after: Delaware Corporation Patentee after: Yi Kanuosi communication common carrier Address before: Cayman Islands Grand Cayman Hutchins Avenue Patentee before: Ikanos Communications Inc |
|
C56 | Change in the name or address of the patentee | ||
CP02 | Change in the address of a patent holder |
Address after: Delaware Patentee after: Yi Kanuosi communication common carrier Address before: Delaware Corporation Patentee before: Yi Kanuosi communication common carrier |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20180830 |