公开(公告)号：US07486665B2

公开(公告)日：2009-02-03

申请号：US10994559

申请日：2004-11-22

申请人： Anantha R. Mekala ,  Subrahmanyam V. Kunapuli ,  Jason A. Kuhne ,  Salman Haider

发明人： Anantha R. Mekala ,  Subrahmanyam V. Kunapuli ,  Jason A. Kuhne ,  Salman Haider

IPC分类号： H04L12/66 ,  H04J3/12

CPC分类号： H04Q11/04 ,  H04L12/66 ,  H04L65/1026 ,  H04L65/103 ,  H04M7/1295 ,  H04Q2213/13034 ,  H04Q2213/13196 ,  H04Q2213/13214 ,  H04Q2213/13216 ,  H04Q2213/1329 ,  H04Q2213/13296 ,  H04Q2213/13389 ,  H04Q2213/13405

摘要： A communication device, such as a Voice over Internet Protocol (VoIP) gateway, determines a duration for Dual Tone Multi-Frequency (DTMF) tone portions of telephony signal. If the duration is less than a pre-determined amount, a minimum duration is enforced during DTMF playback at a remote end of a network connection connected to a destination gateway. Minimum playback duration can be enforced at the terminating gateway—however, the originatinggateway can also encode a DTMF packet with a minimum duration value. At the terminating receiver it is not always possible to playback exactly what happened at the originating point in the same time frame. One solution to is to, at the terminating gateway, drop the first portion of voice packets that overlap with the end portion of played back DTMF tones.

摘要翻译： 通信设备，例如因特网协议语音（VoIP）网关，确定电话信号的双音多频（DTMF）音部分的持续时间。 如果持续时间小于预定的量，则在连接到目的地网关的网络连接的远程端的DTMF回放期间执行最小持续时间。 最终重放持续时间可以在终端网关上实施 - 然而，发起端口也可以对具有最小持续时间值的DTMF分组进行编码。 在终端接收机处，并不总是可以在同一时间帧内准确地回放起始点发生的事件。 一种解决方案是在终端网关处丢弃与回放DTMF音调的末端部分重叠的语音分组的第一部分。

公开(公告)号：US09288331B2

公开(公告)日：2016-03-15

申请号：US13136990

申请日：2011-08-16

申请人： J. William Mauchly ,  Subrahmanyam V. Kunapuli ,  Fei Yang

发明人： J. William Mauchly ,  Subrahmanyam V. Kunapuli ,  Fei Yang

IPC分类号： H04R3/00 ,  H04M3/56 ,  H04N7/15

CPC分类号： H04M3/568 ,  H04M3/564 ,  H04M2203/5072 ,  H04M2203/509 ,  H04N7/15

摘要： In one embodiment, a method includes receiving audio at a plurality of microphones, identifying a sound source to be muted, processing the audio to remove sound received from the sound source at each of the microphones, and transmitting the processed audio. An apparatus is also disclosed.

公开(公告)号：US20130044893A1

公开(公告)日：2013-02-21

申请号：US13136990

申请日：2011-08-16

申请人： J. William Mauchly ,  Subrahmanyam V. Kunapuli ,  Fei Yang

发明人： J. William Mauchly ,  Subrahmanyam V. Kunapuli ,  Fei Yang

IPC分类号： H04R3/00

CPC分类号： H04M3/568 ,  H04M3/564 ,  H04M2203/5072 ,  H04M2203/509 ,  H04N7/15

摘要： In one embodiment, a method includes receiving audio at a plurality of microphones, identifying a sound source to be muted, processing the audio to remove sound received from the sound source at each of the microphones, and transmitting the processed audio. An apparatus is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括在多个麦克风处接收音频，识别要被静音的声源，处理音频以移除在每个麦克风处从声源接收的声音，以及发送经处理的音频。 还公开了一种装置。