|
DE4328139A1
(de)
*
|
1993-08-21 |
1995-02-23 |
Philips Patentverwaltung |
Schaltungsanordnung zur Echoauslöschung
|
|
US5473686A
(en)
*
|
1994-02-01 |
1995-12-05 |
Tandy Corporation |
Echo cancellation apparatus
|
|
SE511073C2
(sv)
|
1997-09-10 |
1999-08-02 |
Ericsson Telefon Ab L M |
Sätt och anordning för ekoestimering och undertryckning i telefonsystem
|
|
US6256383B1
(en)
|
1997-11-07 |
2001-07-03 |
Legerity, Inc. |
IIR filter of adaptive balance circuit for long tail echo cancellation
|
|
US6570985B1
(en)
|
1998-01-09 |
2003-05-27 |
Ericsson Inc. |
Echo canceler adaptive filter optimization
|
|
US7423983B1
(en)
*
|
1999-09-20 |
2008-09-09 |
Broadcom Corporation |
Voice and data exchange over a packet based network
|
|
US6549587B1
(en)
|
1999-09-20 |
2003-04-15 |
Broadcom Corporation |
Voice and data exchange over a packet based network with timing recovery
|
|
JP3566158B2
(ja)
|
1999-12-07 |
2004-09-15 |
三菱電機株式会社 |
エコーキャンセラ装置
|
|
US7672447B1
(en)
|
2000-06-01 |
2010-03-02 |
Telefonaktiebolaget Lm Ericsson (Publ) |
Frequency domain echo canceller
|
|
US7046658B1
(en)
|
2000-06-23 |
2006-05-16 |
At & T Corp. |
Method and system for customer selected direct dialed voice-over-internet protocol (VOIP)
|
|
US7068780B1
(en)
|
2000-08-30 |
2006-06-27 |
Conexant, Inc. |
Hybrid echo canceller
|
|
JP4568439B2
(ja)
|
2001-01-22 |
2010-10-27 |
パナソニック株式会社 |
エコー抑圧装置
|
|
US6785382B2
(en)
*
|
2001-02-12 |
2004-08-31 |
Signalworks, Inc. |
System and method for controlling a filter to enhance speakerphone performance
|
|
EP1393461B1
(en)
*
|
2001-05-17 |
2006-07-19 |
STMicroelectronics Asia Pacific Pte Ltd. |
Echo canceller and a method of cancelling echo
|
|
US6950842B2
(en)
*
|
2002-01-23 |
2005-09-27 |
Analog Devices, Inc. |
Echo canceller having an adaptive filter with a dynamically adjustable step size
|
|
US6914978B2
(en)
|
2002-08-16 |
2005-07-05 |
Ambit Microsystems Corp. |
Pulse dialing system for VoIP modem
|
|
US7082123B2
(en)
|
2002-08-21 |
2006-07-25 |
Ambit Microsystems Corp. |
Silent redial system for VoIP modem
|
|
US7062040B2
(en)
|
2002-09-20 |
2006-06-13 |
Agere Systems Inc. |
Suppression of echo signals and the like
|
|
US7027591B2
(en)
|
2002-10-16 |
2006-04-11 |
Ericsson Inc. |
Integrated noise cancellation and residual echo suppression
|
|
US7162420B2
(en)
*
|
2002-12-10 |
2007-01-09 |
Liberato Technologies, Llc |
System and method for noise reduction having first and second adaptive filters
|
|
JP4376793B2
(ja)
*
|
2003-01-08 |
2009-12-02 |
エヌエックスピー ビー ヴィ |
特に電話におけるエコーを抑制するための装置および方法
|
|
US6947549B2
(en)
|
2003-02-19 |
2005-09-20 |
The Hong Kong Polytechnic University |
Echo canceller
|
|
US7099458B2
(en)
*
|
2003-12-12 |
2006-08-29 |
Motorola, Inc. |
Downlink activity and double talk probability detector and method for an echo canceler circuit
|
|
WO2006040734A1
(en)
|
2004-10-13 |
2006-04-20 |
Koninklijke Philips Electronics N.V. |
Echo cancellation
|
|
US7894598B2
(en)
*
|
2004-12-14 |
2011-02-22 |
Nuance Communications, Inc. |
System for limiting receive audio
|
|
JP2007235874A
(ja)
*
|
2006-03-03 |
2007-09-13 |
Sanyo Electric Co Ltd |
エコー抑制装置及びエコー抑制方法
|
|
ATE445966T1
(de)
|
2006-05-08 |
2009-10-15 |
Harman Becker Automotive Sys |
Echoverringerung für zeitvariante systeme
|
|
EP1879293B1
(en)
|
2006-07-10 |
2019-02-20 |
Harman Becker Automotive Systems GmbH |
Partitioned fast convolution in the time and frequency domain
|
|
US7983373B2
(en)
*
|
2007-02-07 |
2011-07-19 |
Vintomie Networks B.V., Llc |
Clock distribution for 10GBase-T analog front end
|
|
JP4978352B2
(ja)
*
|
2007-07-11 |
2012-07-18 |
ヤマハ株式会社 |
エコーキャンセラ
|
|
US8374851B2
(en)
|
2007-07-30 |
2013-02-12 |
Texas Instruments Incorporated |
Voice activity detector and method
|
|
EP2048659B1
(en)
|
2007-10-08 |
2011-08-17 |
Harman Becker Automotive Systems GmbH |
Gain and spectral shape adjustment in audio signal processing
|
|
US8275139B2
(en)
*
|
2008-03-26 |
2012-09-25 |
Ittiam Systems (P) Ltd. |
Linear full duplex system and method for acoustic echo cancellation
|
|
JP5125690B2
(ja)
*
|
2008-03-31 |
2013-01-23 |
ヤマハ株式会社 |
音響エコー除去装置
|
|
US8634569B2
(en)
|
2010-01-08 |
2014-01-21 |
Conexant Systems, Inc. |
Systems and methods for echo cancellation and echo suppression
|
|
NO332437B1
(no)
*
|
2010-01-18 |
2012-09-17 |
Cisco Systems Int Sarl |
Apparat og fremgangsmate for a supprimere et akustisk ekko
|
|
US9185233B2
(en)
|
2010-05-25 |
2015-11-10 |
Intel Deutschland Gmbh |
Audio communication device and method using fixed echo cancellation filter coefficients
|
|
CN103339671B
(zh)
|
2011-02-03 |
2016-05-04 |
瑞典爱立信有限公司 |
谐波扬声器非线性的估计和抑制
|
|
US8804977B2
(en)
|
2011-03-18 |
2014-08-12 |
Dolby Laboratories Licensing Corporation |
Nonlinear reference signal processing for echo suppression
|
|
CN202340252U
(zh)
*
|
2011-11-18 |
2012-07-18 |
镁思锑科技（杭州）有限公司 |
具有回声和噪声消除功能的矿用通信手机
|
|
US9065895B2
(en)
|
2012-02-22 |
2015-06-23 |
Broadcom Corporation |
Non-linear echo cancellation
|
|
GB2509493A
(en)
|
2012-12-21 |
2014-07-09 |
Microsoft Corp |
Suppressing Echo in a received audio signal by estimating the echo power in the received audio signal based on an FIR filter estimate
|
|
GB2510331A
(en)
|
2012-12-21 |
2014-08-06 |
Microsoft Corp |
Echo suppression in an audio signal
|