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1. 发明授权

US08942382B2 Dynamic beamformer processing for acoustic echo cancellation in systems with high acoustic coupling 有权
标题翻译：用于具有高声耦合的系统中的声学回波消除的动态波束形成器处理
公开(公告)号：US08942382B2
公开(公告)日：2015-01-27
申请号：US13426761
申请日：2012-03-22
申请人： Gary W. Elko , Tomas F. Gaensler , Eric J. Diethorn , Jens M. Meyer
发明人： Gary W. Elko , Tomas F. Gaensler , Eric J. Diethorn , Jens M. Meyer
IPC分类号： H04B3/20 , H04M9/08
CPC分类号： H04M9/082
摘要： Near-end equipment for a communication channel with far-end equipment. The near-end equipment includes at least one loudspeaker, at least two microphones, a beamformer, and an echo canceller. The communication channel may be in one of a number of communication states including Near-End Only state, Far-End Only state, and Double-Talk state. In one embodiment, when the echo canceller determines that the communication channel is in either the Far-End Only state or the Double-Talk state, the beamformer is configured to generate a nearfield beampattern signal that directs a null towards a loudspeaker. When the echo canceller detects the Near-End Only state, the beamformer is configured to generate a farfield beampattern signal that optimizes reception of acoustic signals from the near-end audio source. Using different beamformer processing for different communication states allows echo cancellation processing to be more successful at reducing echo in the signal transmitted to the far-end equipment.
摘要翻译：近端设备用于具有远端设备的通信通道。近端设备包括至少一个扬声器，至少两个麦克风，波束形成器和回波消除器。通信信道可以处于包括近端仅状态，远端仅状态和双向通信状态的多个通信状态之一。在一个实施例中，当回声消除器确定通信信道处于远端唯一状态或双向通信状态时，波束形成器被配置为生成将空值指向扬声器的近场波形图信号。当回波消除器检测到仅近端状态时，波束形成器被配置为生成远场波形图信号，其优化来自近端音频源的声信号的接收。对于不同的通信状态使用不同的波束形成器处理允许回波消除处理在减少发送到远端设备的信号中的回波方面更成功。

2. 发明申请

US20120243698A1 Dynamic Beamformer Processing for Acoustic Echo Cancellation in Systems with High Acoustic Coupling 有权
标题翻译：在具有高声耦合的系统中的声学回波消除的动态波束形成处理
公开(公告)号：US20120243698A1
公开(公告)日：2012-09-27
申请号：US13426761
申请日：2012-03-22
申请人： Gary W. Elko , Tomas F. Gaensler , Eric J. Diethorn , Jens M. Meyer
发明人： Gary W. Elko , Tomas F. Gaensler , Eric J. Diethorn , Jens M. Meyer
IPC分类号： H04B3/20
CPC分类号： H04M9/082
摘要： Near-end equipment for a communication channel with far-end equipment. The near-end equipment includes at least one loudspeaker, at least two microphones, a beamformer, and an echo canceller. The communication channel may be in one of a number of communication states including Near-End Only state, Far-End Only state, and Double-Talk state. In one embodiment, when the echo canceller determines that the communication channel is in either the Far-End Only state or the Double-Talk state, the beamformer is configured to generate a nearfield beampattern signal that directs a null towards a loudspeaker. When the echo canceller detects the Near-End Only state, the beamformer is configured to generate a farfield beampattern signal that optimizes reception of acoustic signals from the near-end audio source. Using different beamformer processing for different communication states allows echo cancellation processing to be more successful at reducing echo in the signal transmitted to the far-end equipment.
摘要翻译：近端设备用于具有远端设备的通信通道。近端设备包括至少一个扬声器，至少两个麦克风，波束形成器和回波消除器。通信信道可以处于包括近端仅状态，远端仅状态和双向通信状态的多个通信状态之一。在一个实施例中，当回声消除器确定通信信道处于远端唯一状态或双向通信状态时，波束形成器被配置为生成将空值指向扬声器的近场波形图信号。当回波消除器检测到仅近端状态时，波束形成器被配置为生成远场波形图信号，其优化来自近端音频源的声信号的接收。对于不同的通信状态使用不同的波束形成器处理允许回波消除处理在减少发送到远端设备的信号中的回波方面更成功。

3. 发明申请

US20100245111A1 END USER CONTROL OF MUSIC ON HOLD 审中-公开
标题翻译：最终用户控制音乐保持
公开(公告)号：US20100245111A1
公开(公告)日：2010-09-30
申请号：US12303824
申请日：2007-12-07
申请人： Tomas F. Gaensler , James A. Johanson , Peter Kroon , Ashish Parajuli , Richard Verney
发明人： Tomas F. Gaensler , James A. Johanson , Peter Kroon , Ashish Parajuli , Richard Verney
IPC分类号： G08C19/00
CPC分类号： H04M3/4285 , H04M1/72513 , H04M1/72558 , H04M2203/2011 , H04W4/16
摘要： In an exemplary embodiment, a wireless handset allows a user having a connection in an “on-hold” state to select one or more sources for play-out of media at a handset receiver while in the on-hold state, and then be signaled when the on-hold state is terminated. Such on-hold state might be indirectly detected, such as by detection of music-on-hold, or directly detected through on-hold notification. User selected media for play-out might be locally generated at the user's handset, or provided through a separate connection established between the wireless handset and the network.
摘要翻译：在示例性实施例中，无线手机允许具有处于“保持”状态的连接的用户在处于保持状态的同时，在手持机接收机处选择一个或多个源以播放媒体，然后被发信号通知当保持状态被终止时。可以间接地检测这种保持状态，例如通过检测保持音乐，或通过保持通知直接检测。用户播放的用户选择的媒体可以在用户的手机本地生成，或者通过在无线手机和网络之间建立的单独的连接提供。

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