公开(公告)号：EP4005230A1

公开(公告)日：2022-06-01

申请号：EP19748499.1

申请日：2019-07-25

申请人： Unify Patente GmbH & Co. KG

发明人： LOPEZ MOREIRA, Alexandre

IPC分类号： H04R3/02 ,  G10K11/16 ,  G10L21/02 ,  H04B3/20 ,  H04M9/08 ,  H04M3/56 ,  G10L25/48

公开(公告)号：EP2456232B1

公开(公告)日：2019-04-24

申请号：EP10799870.0

申请日：2010-07-14

申请人： YAMAHA Corporation

发明人： TANAKA, Ryo

IPC分类号： H04R3/02 ,  H04B3/20

公开(公告)号：EP3170267A4

公开(公告)日：2017-12-27

申请号：EP15821978

申请日：2015-06-19

申请人： INTEL IP CORP

发明人： TETZLAFF THOMAS A ,  PERAHIA ELDAD ,  STACEY ROBERT J

IPC分类号： H04L5/14 ,  H04B3/20 ,  H04B7/015 ,  H04L1/00 ,  H04L1/16 ,  H04M9/08

CPC分类号： H04L5/1461 ,  H04B3/20 ,  H04B7/015 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1635 ,  H04M9/082

摘要： Disclosed in some examples are methods, systems, and machine readable mediums which allow for wireless devices with limited echo cancellation capabilities to participate in full-duplex communications. In some examples, by carefully controlling transmission powers and the modulation and coding schemes (MCS) used in the transmissions, both devices can engage in full-duplex communication.

公开(公告)号：EP2858338B1

公开(公告)日：2017-08-23

申请号：EP13864322.6

申请日：2013-12-12

申请人： Goertek Inc.

发明人： LIU, Song ,  LOU, Shasha ,  LI, Bo

IPC分类号： H04M9/08 ,  H04B3/20

CPC分类号： H04M9/082 ,  H04B3/20

公开(公告)号：EP3164944A1

公开(公告)日：2017-05-10

申请号：EP14741431.2

申请日：2014-07-01

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： TROJER, Elmar ,  ERIKSSON, Per-Erik ,  LU, Chenguang ,  SANDSTRÖM, Lukas ,  BERG, Miguel

IPC分类号： H04B3/28 ,  H04B3/20 ,  H03H7/48 ,  H04B1/58 ,  H04B3/30

CPC分类号： H01Q7/00 ,  H01Q1/48 ,  H01Q5/335 ,  H04B1/58 ,  H04B3/20 ,  H04B3/28 ,  H04B3/30 ,  H04M3/005

摘要： It is presented a hybrid coil circuit comprising: a transformer; a common mode choke, wherein all choke windings are magnetically coupled; an impedance matching device connected on a middle choke winding, the impedance matching device being connected to ground; a first port being provided between a first choke winding and the impedance matching device; a second port being provided between a third choke winding and the impedance matching device; a third port being provided between either end of a second transformer winding; a first inductor arranged between the impedance matching device and the first port; and a second inductor arranged between the impedance matching device and the second port, wherein the first inductor and the second inductor are magnetically coupled.

摘要翻译： 提出了一种混合线圈电路，其包括：变压器; 共模扼流圈，其中所有扼流圈均磁耦合; 阻抗匹配装置，连接在中间扼流圈上，所述阻抗匹配装置接地;第一端口，设置在第一扼流圈和所述阻抗匹配装置之间; 在第三扼流线圈和阻抗匹配装置之间提供第二端口; 第三端口设置在第二变压器绕组的任一端之间; 布置在阻抗匹配装置和第一端口之间的第一电感器; 以及布置在阻抗匹配装置和第二端口之间的第二电感器，其中第一电感器和第二电感器磁耦合。

公开(公告)号：EP2592761A4

公开(公告)日：2017-03-22

申请号：EP11803088

申请日：2011-04-18

申请人： ZTE CORP

发明人： ZHENG YUXIN

IPC分类号： H04B3/20 ,  H04M9/08

CPC分类号： H04B3/238

摘要： Disclosed in the present invention are a method and an apparatus for controlling echo canceller in a network. The method of the present invention comprises: a called side gateway detecting a characteristic tone used for indicating data transmission (S11); and the called side gateway and a calling side gateway executing a corresponding operation of switching on or off their own echo canceller according to the characteristic tone (S12). In the present invention, the calling side gateway or the called side gateway executes the operation of controlling echo canceller according to the characteristic tone, which can effectively control echo canceller. Regardless of the characteristic tone in the manner of loss coding or lossless coding, which is transmitted between the calling side gateway and the called side gateway, the calling side gateway can always control echo canceller.

摘要翻译： 在本发明中公开了一种用于控制网络中的回波消除器的方法和装置。 本发明的方法包括：被叫侧网关检测用于指示数据传输的特征音（S11）; 被叫侧网关和主叫侧网关根据特征音执行对自己的回声消除器进行切换的对应动作（S12）。 在本发明中，主叫侧网关或被叫侧网关根据能够有效地控制回波消除器的特征音执行控制回波消除器的动作。 无论主叫侧网关和被叫侧网关之间传输的丢失编码或无损编码方式的特征音如何，主叫侧网关始终可以控制回声消除器。

公开(公告)号：EP2202892B1

公开(公告)日：2012-07-25

申请号：EP08832817.4

申请日：2008-09-24

申请人： Yamaha Corporation

发明人： TADA, Yukio c/o Yamaha Corporation

IPC分类号： H04B3/20 ,  H04B3/23 ,  H04M1/60

CPC分类号： H04M9/082 ,  H01L2924/14 ,  H01L2924/00

摘要： Provided is an echo removal device which has a simple configuration and can appropriately remove an echo even if an emitted sound volume becomes large. A control unit (17) performs switching between operations of an echo suppresser (14) and an echo canceller (15) according to a volume value inputted from a sound volume operation unit (18). When the volume value is large, the echo suppresser (14) is operated so as to surely suppress the echo. When the volume value is small, the echo canceller (15) is operated to enable double talk.

公开(公告)号：EP1542374B1

公开(公告)日：2012-07-25

申请号：EP04257707.2

申请日：2004-12-10

申请人： MOTOROLA, INC.

发明人： Owens, Keith L. ,  Piket, James B. ,  Springfield, Christopher W.

IPC分类号： H04B3/20 ,  H04B3/23 ,  H04M9/08

CPC分类号： H04M9/082

公开(公告)号：EP1062737B1

公开(公告)日：2008-12-03

申请号：EP99900005.2

申请日：1999-01-06

申请人： Siemens Schweiz AG

发明人： GOLDSTEIN, Peter

IPC分类号： H04B3/20

CPC分类号： H04B3/20 ,  H04M3/002

摘要： The method concerns echo suppression in connections from a terminal (EG) to an automatic machine (AS) in a communications network. The communications network comprises echo control devices (ECD) that can be requested if required and that can be inserted on the basis of predetermined criteria during the established connections in order to suppress the echo signals arising therein. In the corresponding switching nodes (DVK; NK/DVK) to which the automatic machines (AS) are connected, a comparison is made between the signal propagation time vlz of the connection from the terminal (EG) to the automatic machine (AS) and the value of the echo propagation time compensation elk of an echo control device optionally available in the automatic machine (AS) or an echo control device assigned to the automatic machine (AS) after a connection has been established between the terminal (EG) and the automatic machine (AS). When vlz > 1/2 elk, an echo control logic provided in the switching nodes (DVK; NK/DVK) enables the transmission of a signal (ECRB) to the communications network in order to request an echo control device (ECD) available in the network which is then inserted in the connection between the terminal (EG) and the automatic machine (AS).

公开(公告)号：EP1976139A1

公开(公告)日：2008-10-01

申请号：EP06711810.9

申请日：2006-01-17

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： YANO, Atsuyoshi, c/o Mitsubishi Electric Corporation ,  KAJIYAMA, Ikuo, c/o Mitsubishi Electric Corporation

IPC分类号： H04B3/20 ,  H04B3/23 ,  H04M1/60

CPC分类号： H04B3/234

摘要： A state deciding unit 2 makes a decision of double talk when both received signal and transmission signal are in a speech burst, and when the amount of reduction in an echo removal level per prescribed time period exceeds a predetermined threshold, the echo removal level being represented as a level difference between the transmission signal and a residual signal passing through the echo elimination by an adaptive filter 1, and when the amount of changes of the signal level of the received signal is less than a prescribed reference value.

摘要翻译： 当接收信号和发送信号都处于语音突发中时，状态判定单元2做出双重通话的判定，并且当每规定时间段的回声消除水平的降低量超过预定阈值时，表示回声消除水平 作为通过自适应滤波器1的通过回波消除的传输信号与残差信号之间的电平差，并且当接收信号的信号电平的变化量小于规定的参考值时。