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1. 发明申请

US20130039497A1 SYSTEM AND METHOD FOR USING ENDPOINTS TO PROVIDE SOUND MONITORING 有权
标题翻译：使用终点提供声音监测的系统和方法
公开(公告)号：US20130039497A1
公开(公告)日：2013-02-14
申请号：US13205368
申请日：2011-08-08
申请人： Michael A. Ramalho , James C. Frauenthal , Brian A. Apgar
发明人： Michael A. Ramalho , James C. Frauenthal , Brian A. Apgar
IPC分类号： H04R29/00
CPC分类号： G08B13/1672 , G08B13/19684 , G08B13/19697 , H04R1/02 , H04R1/2834 , H04R5/02 , H04R17/00 , H04R27/00 , H04R2205/022 , H04R2217/01 , H04R2227/003 , H04S5/00
摘要： A method is provided in one example embodiment that includes monitoring a sound pressure level with an endpoint (e.g., an Internet Protocol (IP) phone), which is configured for communications involving end users; analyzing the sound pressure level to detect a sound anomaly; and communicating the sound anomaly to a sound classification module. The endpoint can be configured to operate in a low-power mode during the monitoring of the sound pressure level. In certain instances, the sound classification module is hosted by the endpoint. In other implementations, the sound classification module is hosted in a cloud network.
摘要翻译：在一个示例性实施例中提供了一种方法，该方法包括用端点（例如，因特网协议（IP）电话）来监测声压级，其被配置用于涉及终端用户的通信; 分析声压级检测声音异常; 并将声音异常传送到声音分类模块。端点可以配置为在监听声压级时以低功耗模式运行。在某些情况下，声音分类模块由端点托管。在其他实现中，声音分类模块托管在云网络中。

2. 发明授权

US09025779B2 System and method for using endpoints to provide sound monitoring 有权
标题翻译：使用端点提供声音监控的系统和方法
公开(公告)号：US09025779B2
公开(公告)日：2015-05-05
申请号：US13205368
申请日：2011-08-08
申请人： Michael A. Ramalho , James C. Frauenthal , Brian A. Apgar
发明人： Michael A. Ramalho , James C. Frauenthal , Brian A. Apgar
IPC分类号： H04R29/00 , G08B13/16 , H04R1/28 , H04R5/02 , H04R1/02 , H04R17/00 , H04R27/00 , H04S5/00 , G08B13/196
CPC分类号： G08B13/1672 , G08B13/19684 , G08B13/19697 , H04R1/02 , H04R1/2834 , H04R5/02 , H04R17/00 , H04R27/00 , H04R2205/022 , H04R2217/01 , H04R2227/003 , H04S5/00
摘要： A method is provided in one example embodiment that includes monitoring a sound pressure level with an endpoint (e.g., an Internet Protocol (IP) phone), which is configured for communications involving end users; analyzing the sound pressure level to detect a sound anomaly; and communicating the sound anomaly to a sound classification module. The endpoint can be configured to operate in a low-power mode during the monitoring of the sound pressure level. In certain instances, the sound classification module is hosted by the endpoint. In other implementations, the sound classification module is hosted in a cloud network.
摘要翻译：在一个示例性实施例中提供了一种方法，该方法包括用端点（例如，因特网协议（IP）电话）来监测声压级，其被配置用于涉及终端用户的通信; 分析声压级检测声音异常; 并将声音异常传送到声音分类模块。端点可以配置为在监听声压级时以低功耗模式运行。在某些情况下，声音分类模块由端点托管。在其他实现中，声音分类模块托管在云网络中。

3. 发明授权

US08238548B2 Controlling echo during double-talk in a voice conference 有权
标题翻译：在语音会议中双向通话期间控制回声
公开(公告)号：US08238548B2
公开(公告)日：2012-08-07
申请号：US12028594
申请日：2008-02-08
申请人： James C. Frauenthal , Michael A. Ramalho , Gary Skrabutenas , Herbert Wildfeuer
发明人： James C. Frauenthal , Michael A. Ramalho , Gary Skrabutenas , Herbert Wildfeuer
IPC分类号： H04M9/08 , H04M1/00 , H04M3/42 , H04M9/00
CPC分类号： H04M9/08
摘要： An echo canceller apparatus comprises a receive side attenuator coupled in a receive side signal path that is configured to couple from a conference call bridge to a caller; a convolution processor coupled to the receive side signal path at a convolution processor pick-off point; a double-talk detector coupled to the receive side signal path and to a sending side signal path that is configured to couple from the caller to the conference call bridge; and logic coupled to the receive side attenuator which when executed is responsive to a double-talk condition detected by the double-talk detector and operable to determine a level of echo canceled by the convolution processor, to determine an additional amount of attenuation to introduce, and to activate the receive side attenuator to introduce the additional attenuation.
摘要翻译：一种回声消除装置包括耦合在接收侧信号路径中的接收侧衰减器，接收侧衰减器被配置为从会议呼叫桥耦合到呼叫者; 在卷积处理器拾取点处耦合到接收侧信号路径的卷积处理器; 耦合到接收侧信号路径的双向通话检测器和被配置为从呼叫者耦合到电话会议桥的发送侧信号路径; 以及耦合到所述接收侧衰减器的逻辑，其在执行时响应于所述双方通话检测器检测到的双方通话条件，并且可操作以确定由所述卷积处理器消除的回波电平，以确定要引入的附加的衰减量，并激活接收侧衰减器以引入额外的衰减。

4. 发明授权

US08428247B2 Echo mitigation in a conference call 有权
公开(公告)号：US08428247B2
公开(公告)日：2013-04-23
申请号：US12326756
申请日：2008-12-02
申请人： James C. Frauenthal , Michael P. O'Brien , Michael A. Ramalho , Gary A. Skrabutenas , Shmuel Shaffer , Steven L. Christenson
发明人： James C. Frauenthal , Michael P. O'Brien , Michael A. Ramalho , Gary A. Skrabutenas , Shmuel Shaffer , Steven L. Christenson
IPC分类号： H04M9/08
CPC分类号： H04M3/002 , H04B3/23 , H04M9/082
摘要： In an example embodiment, an example method is provided for echo mitigation in a conference call. In this method, a test audio signal is transmitted to a conference endpoint and as a result, an echo associated with the transmittal of the test audio signal is received. One or more parameters of the echo are then identified and an echo mitigation process is selected from multiple echo mitigation processes based on the identified parameters. The selected echo mitigation process is then applied.

5. 发明授权

US08462675B2 Echo mitigation in the presence of variable delays due to adaptive jitter buffers 有权
公开(公告)号：US08462675B2
公开(公告)日：2013-06-11
申请号：US12712648
申请日：2010-02-25
申请人： Gary Alan Skrabutenas , Michael A. Ramalho , James C. Frauenthal
发明人： Gary Alan Skrabutenas , Michael A. Ramalho , James C. Frauenthal
IPC分类号： H04B3/20 , H04B3/23
CPC分类号： H04M3/002 , H04B3/23 , H04M9/082
摘要： In an example embodiment, a control connection is introduced between an adaptive jitter buffer (AJB) and an adaptive bulk delay (ABD) buffer of an echo canceller (ECAN) in an Internet Protocol (IP) conference bridge. The control connection allows the AJB to control the amount of delay inserted by the ABD in the ECAN convolution processor (CP) signal path. The adjustment in ABD delay restores the time alignment of the ECAN internal echo estimate and offsets variations in echo tail delay introduced by network induced AJB delay changes. Time-invariance is preserved in the echo tail path.

6. 发明授权

US08126160B2 Use of non-audible band to relay information for echo cancellation in a distributed media system 有权
标题翻译：在分布式媒体系统中使用非可听频段中继信息进行回波消除
公开(公告)号：US08126160B2
公开(公告)日：2012-02-28
申请号：US12235179
申请日：2008-09-22
申请人： James C. Frauenthal , Ramanathan Jagadeesan , Michael A. Ramalho
发明人： James C. Frauenthal , Ramanathan Jagadeesan , Michael A. Ramalho
IPC分类号： H04B15/00
CPC分类号： H04M9/082
摘要： Particular embodiments provide for attenuating one or more microphone signals in a teleconferencing system upon detecting a non-audible signal. A far end voice signal is received from a sound source. A non-audible signal is added to the far end voice signal to create a composite signal, which is provided to one or more speakers. The speakers output the composite signal and the non-audible signal are detected in the composite signal after the composite signal is received at one or more microphones. The non-audible signal allows an attenuator to attenuate a microphone signal including the composite signal from a particular microphone in response to the detected non-audible signal to reduce far end echo.
摘要翻译：具体实施例提供了在检测到非可听信号时衰减电话会议系统中的一个或多个麦克风信号。从声源接收远端语音信号。将不可听信号添加到远端语音信号以产生提供给一个或多个扬声器的复合信号。在一个或多个麦克风接收到复合信号之后，扬声器输出复合信号并且在复合信号中检测非听觉信号。不可听信号允许衰减器响应于检测到的不可听信号而衰减包括来自特定麦克风的复合信号的麦克风信号以减少远端回波。

7. 发明申请

US20090103712A1 CONTROLLING ECHO IN A WIDEBAND VOICE CONFERENCE 有权
标题翻译：在宽频电话会议中控制ECHO
公开(公告)号：US20090103712A1
公开(公告)日：2009-04-23
申请号：US11877259
申请日：2007-10-23
申请人： James C. Frauenthal , Michael A. Ramalho
发明人： James C. Frauenthal , Michael A. Ramalho
IPC分类号： H04M9/08
CPC分类号： H04M3/002 , H04M3/568 , H04M9/082
摘要： In one embodiment, an echo canceller configured to cancel echo in a wideband voice conference is provided. A double-talk condition may be when a plurality of users are speaking substantially simultaneously. When a double-talk condition is detected in the wideband conference, a high-frequency process is enabled and used to process signals in the high band to reduce echo. Accordingly, echo in the high band may not be produced by end devices being used by the users' speaking. Also, the users speaking have the echo cancelled in the low band and substantial echo does not result. This results in the users speaking experiencing the conference in the narrowband. The other users that are not speaking, however, continue to receive wideband signals. The users not speaking also continue to have echo cancellation performed for the high band and low band because these users are not speaking and thus attenuation of their voices is not a consideration.
摘要翻译：在一个实施例中，提供了被配置为在宽带语音会议中消除回波的回声消除器。当多个用户基本上同时进行说话时，双方通话状况可能是这样。当在宽带会议中检测到双向通话条件时，可以使用高频处理并用于处理高频段中的信号以减少回声。因此，高频段的回波可能不会被用户所说的终端设备所产生。另外，说话的用户在低频带中取消了回声，并且不会产生显着的回波。这导致用户在窄带中体验会议。然而，不说话的其他用户继续收到宽带信号。不说话的用户还会对高频带和低频带继续进行回波消除，因为这些用户不会说话，因此声音的衰减不是考虑因素。

8. 发明申请

US20070286351A1 Method and System for Adaptive Media Quality Monitoring 审中-公开
标题翻译：自适应媒体质量监测方法与系统
公开(公告)号：US20070286351A1
公开(公告)日：2007-12-13
申请号：US11419913
申请日：2006-05-23
申请人： Randall P.J. Ethier , Rajesh Kumar , Robert J. Biskner , Chelliah Sivachelvan , Mohamed S. Mostafa , Scott S. Firestone , Michael A. Ramalho , Kevin J. Connor , James C. Frauenthal , Michael P. Hammer
发明人： Randall P.J. Ethier , Rajesh Kumar , Robert J. Biskner , Chelliah Sivachelvan , Mohamed S. Mostafa , Scott S. Firestone , Michael A. Ramalho , Kevin J. Connor , James C. Frauenthal , Michael P. Hammer
IPC分类号： H04M3/08 , H04M3/22 , H04M1/24
CPC分类号： H04M3/2236 , H04L65/80 , H04M2201/18
摘要： A method for adaptive media quality monitoring includes monitoring at least one metric of a call between at least two endpoints and detecting a threshold crossing event via the monitoring of the at least one metric. The method also includes executing a threshold crossing action based on detecting the threshold crossing event. The threshold crossing action comprises monitoring at least one additional metric of the call.
摘要翻译：用于自适应媒体质量监测的方法包括：监视至少两个端点之间的呼叫的至少一个度量，并且通过监视所述至少一个度量来检测阈值交叉事件。该方法还包括基于检测阈值交叉事件来执行阈值交叉动作。阈值交叉动作包括监视呼叫的至少一个附加度量。

9. 发明申请

US20090202063A1 Controlling Echo During Double-Talk in a Voice Conference 有权
标题翻译：在语音会议双重对话中控制回声
公开(公告)号：US20090202063A1
公开(公告)日：2009-08-13
申请号：US12028594
申请日：2008-02-08
申请人： James C. Frauenthal , Michael A. Ramalho , Gary Skrabutenas , Herbert Wildfeuer
发明人： James C. Frauenthal , Michael A. Ramalho , Gary Skrabutenas , Herbert Wildfeuer
IPC分类号： H04M9/08
CPC分类号： H04M9/08
摘要： An echo canceller apparatus comprises a receive side attenuator coupled in a receive side signal path that is configured to couple from a conference call bridge to a caller; a convolution processor coupled to the receive side signal path at a convolution processor pick-off point; a double-talk detector coupled to the receive side signal path and to a sending side signal path that is configured to couple from the caller to the conference call bridge; and logic coupled to the receive side attenuator which when executed is responsive to a double-talk condition detected by the double-talk detector and operable to determine a level of echo canceled by the convolution processor, to determine an additional amount of attenuation to introduce, and to activate the receive side attenuator to introduce the additional attenuation.
摘要翻译：一种回声消除装置包括耦合在接收侧信号路径中的接收侧衰减器，接收侧衰减器被配置为从会议呼叫桥耦合到呼叫者; 在卷积处理器拾取点处耦合到接收侧信号路径的卷积处理器; 耦合到接收侧信号路径的双向通话检测器和被配置为从呼叫者耦合到电话会议桥的发送侧信号路径; 以及耦合到所述接收侧衰减器的逻辑，其在执行时响应于所述双方通话检测器检测到的双方通话条件，并且可操作以确定由所述卷积处理器消除的回波电平，以确定要引入的附加的衰减量，并激活接收侧衰减器以引入额外的衰减。

10. 发明授权

US08923509B2 Controlling echo in a wideband voice conference 有权
标题翻译：在宽带语音会议中控制回声
公开(公告)号：US08923509B2
公开(公告)日：2014-12-30
申请号：US11877259
申请日：2007-10-23
申请人： James C. Frauenthal , Michael A. Ramalho
发明人： James C. Frauenthal , Michael A. Ramalho
IPC分类号： H04M9/08
CPC分类号： H04M3/002 , H04M3/568 , H04M9/082
摘要： In one embodiment, an echo canceller configured to cancel echo in a wideband voice conference is provided. A double-talk condition may be when a plurality of users are speaking substantially simultaneously. When a double-talk condition is detected in the wideband conference, a high-frequency process is enabled and used to process signals in the high band to reduce echo. Accordingly, echo in the high band may not be produced by end devices being used by the users' speaking. Also, the users speaking have the echo cancelled in the low band and substantial echo does not result. This results in the users speaking experiencing the conference in the narrowband. The other users that are not speaking, however, continue to receive wideband signals. The users not speaking also continue to have echo cancellation performed for the high band and low band because these users are not speaking and thus attenuation of their voices is not a consideration.
摘要翻译：在一个实施例中，提供了被配置为在宽带语音会议中消除回波的回声消除器。当多个用户基本上同时进行说话时，双方通话状况可能是这样。当在宽带会议中检测到双向通话条件时，可以使用高频处理并用于处理高频段中的信号以减少回声。因此，高频段的回波可能不会被用户所说的终端设备所产生。另外，说话的用户在低频带中取消了回声，并且不会产生显着的回波。这导致用户在窄带中体验会议。然而，不说话的其他用户继续收到宽带信号。不说话的用户还会继续对高频带和低频带进行回波消除，因为这些用户不会说话，因此声音的衰减不是一个考虑因素。

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