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1. 发明授权

US07039197B1 User interface for communication system 失效
标题翻译：用于通信系统的用户界面
公开(公告)号：US07039197B1
公开(公告)日：2006-05-02
申请号：US09692268
申请日：2000-10-19
申请人： Saligrama R. Venkatesh , Alan M. Finn , Philip LeMay , Ronald Reich , Mark W. Davis , James J. Dattolo , Michael N. Maass , Stephen J. Learman
发明人： Saligrama R. Venkatesh , Alan M. Finn , Philip LeMay , Ronald Reich , Mark W. Davis , James J. Dattolo , Michael N. Maass , Stephen J. Learman
IPC分类号： H04B1/00
CPC分类号： H04R3/005 , H04R2499/13
摘要： An improved user interface is installed in the cabin of a vehicle incorporating a cabin communication system using acoustic echo cancellation for improving the ease and flexibility of the cabin communication. Separate controls at each seat location enable the person occupying that seat to selectively converse with other occupants in the vehicle, create a recorded message and/or place a telephone call.
摘要翻译：改进的用户界面被安装在车辆的舱室中，其中包括使用声学回声消除的舱室通信系统，以改善舱室通信的容易性和灵活性。在每个座椅位置处的单独控制使得占据该座位的人能够选择性地与车辆中的其他乘客交谈，创建记录的消息和/或拨打电话。

2. 发明授权

US06748086B1 Cabin communication system without acoustic echo cancellation 失效
标题翻译：无声回声消除的客舱通信系统
公开(公告)号：US06748086B1
公开(公告)日：2004-06-08
申请号：US09691869
申请日：2000-10-19
申请人： Saligrama R. Venkatesh , Alan M. Finn
发明人： Saligrama R. Venkatesh , Alan M. Finn
IPC分类号： A61E1106
CPC分类号： H04R3/02 , H04M9/082 , H04R3/005 , H04R2499/13
摘要： A cabin communication system for improving clarity of a voice spoken within an interior cabin uses a microphone array including a first microphone, positioned at a first location within the cabin, for receiving the spoken voice primarily in a first direction and for converting the spoken voice into a first audio signal, and a second microphone, positioned at a second location within the cabin, for receiving the spoken voice primarily in the first direction and for converting the spoken voice into a second audio signal. A sound source, such as the speaker of an entertainment system, inputs sound into the cabin such that the input sound approaches the microphone array primarily in a second direction different from the first direction. A processor combines the first and second audio signals to provide a resultant audio signal, wherein the combining of the first and second audio signals defines a beampattern of the microphone array that includes a plurality of lobes and a plurality of nulls such that the spoken voice is primarily received by the microphone array along the first direction at a first one of the plurality of lobes and such that the input sound is primarily received by the microphone array along the second direction at a first one of the plurality of nulls, whereby any component in the resultant audio signals indicative of the input sound is substantially minimal. The cabin communication system further includes a loudspeaker for converting the resultant audio signal into an output reproduced voice within the cabin, and advantageously the beampattern is such that the output reproduced voice is also received at a null of the beampattern.
摘要翻译：用于提高内部舱室内的语音清晰度的舱室通信系统使用麦克风阵列，该麦克风阵列包括位于舱室内的第一位置的第一麦克风，用于主要在第一方向上接收所述口语，并将所述语音转换成第一音频信号和第二麦克风，其位于机舱内的第二位置处，用于主要在第一方向上接收所述口语，并将所述口语转换成第二音频信号。诸如娱乐系统的扬声器的声源将声音输入舱室，使得输入声音主要在与第一方向不同的第二方向上接近麦克风阵列。处理器组合第一和第二音频信号以提供合成的音频信号，其中第一和第二音频信号的合并定义了麦克风阵列的波形图，该波形图包括多个波瓣和多个零点，使得所述语音是主要由麦克风阵列沿着第一方向在多个波瓣中的第一个方向上接收，并且使得输入声音主要由麦克风阵列沿着第二方向以多个零点中的第一个被接收，由此，指示输入声音的结果音频信号基本上是最小的。舱室通信系统还包括用于将所得到的音频信号转换成舱室内的输出再现声音的扬声器，并且有利地，波形图案使得输出再现声音也在空白波形图像的零点处被接收。

3. 发明授权

US06674865B1 Automatic volume control for communication system 有权
标题翻译：通讯系统的自动音量控制
公开(公告)号：US06674865B1
公开(公告)日：2004-01-06
申请号：US09691928
申请日：2000-10-19
申请人： Saligrama R. Venkatesh , Alan M. Finn , Ronald K. Reich
发明人： Saligrama R. Venkatesh , Alan M. Finn , Ronald K. Reich
IPC分类号： H03G300
CPC分类号： H04M9/082 , H04R3/005 , H04R3/02 , H04R2499/13
摘要： An automatic gain control for a cabin communication system for improving clarity of a voice spoken within a movable interior cabin having ambient noise includes a microphone for receiving the spoken voice and the ambient noise and for converting the spoken voice and the ambient noise into a first audio signal having a first component corresponding to the spoken voice and a second component corresponding to the ambient noise, a filter for removing the second component from the first audio signal to provide a filtered audio signal, an acoustic echo canceller for receiving the filtered audio signal in accordance with a supplied dither signal and providing an echo-canceled audio signal, a control signal generating circuit for generating a first automatic gain control signal in response to a noise signal that corresponds to a current speed of the cabin, the first automatic gain control signal controlling a first gain of the dither signal supplied to the filter, the control signal generating circuit also for generating a second automatic gain control signal in response to the noise signal, and a loudspeaker for outputting a reproduced voice in response to the echo-canceled audio signal with a second gain controlled by the second automatic gain control signal.
摘要翻译：用于提高具有环境噪声的可移动内部舱内提供的声音的清晰度的用于舱室通信系统的自动增益控制包括用于接收所述语音和环境噪声的麦克风，以及用于将所述语音和环境噪声转换为第一音频具有对应于所述语音的第一分量的信号和对应于所述环境噪声的第二分量;滤波器，用于从所述第一音频信号中去除所述第二分量以提供经滤波的音频信号;声学回声消除器，用于接收所述经滤波的音频信号根据提供的抖动信号并提供回声消除音频信号;控制信号发生电路，用于响应于对应于机舱当前速度的噪声信号产生第一自动增益控制信号，第一自动增益控制信号控制提供给滤波器的抖动信号的第一增益，产生控制信号电路还用于响应于噪声信号产生第二自动增益控制信号;以及扬声器，用于响应于具有由第二自动增益控制信号控制的第二增益的回波消除音频信号输出再现的语音。

4. 发明授权

US07117145B1 Adaptive filter for speech enhancement in a noisy environment 失效
标题翻译：自适应滤波器，用于噪声环境中的语音增强
公开(公告)号：US07117145B1
公开(公告)日：2006-10-03
申请号：US09692725
申请日：2000-10-19
申请人： Saligrama R. Venkatesh , Alan M. Finn
发明人： Saligrama R. Venkatesh , Alan M. Finn
IPC分类号： G10L19/00 , G06F15/00
CPC分类号： G10L21/0208
摘要： A cabin communication system for improving clarity of a voice spoken within an interior cabin having ambient noise includes a microphone for receiving the spoken voice and the ambient noise and for converting the spoken voice and the ambient noise into an audio signal, the audio signal having a first component corresponding to the spoken voice and a second component corresponding to the ambient noise, a speech enhancement filter for removing the second component from the audio signal to provide a filtered audio signal, the speech enhancement filter removing the second component by processing the audio signal by a method taking into account elements of psycho-acoustics of a human ear, and a loudspeaker for outputting a clarified voice in response to the filtered audio signal.
摘要翻译：用于改善在具有环境噪声的内部舱室内所说出的语音的清晰度的舱室通信系统包括用于接收所述语音和环境噪声并用于将所述语音和环境噪声转换成音频信号的麦克风，所述音频信号具有对应于所述语音的第一分量和对应于所述环境噪声的第二分量;语音增强滤波器，用于从所述音频信号中去除所述第二分量以提供经滤波的音频信号;所述语音增强滤波器通过处理所述音频信号来去除所述第二分量通过考虑到人耳的心理声学元件的方法和用于响应于经滤波的音频信号输出澄清声音的扬声器。

5. 发明授权

US07171003B1 Robust and reliable acoustic echo and noise cancellation system for cabin communication 失效
标题翻译：坚固可靠的声学回声和噪音消除系统，用于客舱通信
公开(公告)号：US07171003B1
公开(公告)日：2007-01-30
申请号：US09692531
申请日：2000-10-19
申请人： Saligrama R. Venkatesh , Alan M. Finn
发明人： Saligrama R. Venkatesh , Alan M. Finn
IPC分类号： H04B3/20 , H04B1/00 , H04M9/08
CPC分类号： H04M9/082 , H03G3/32
摘要： A cabin communication system for improving clarity of a voice spoken within an interior cabin having ambient noise includes an adaptive speech enhancement filter for receiving an audio signal that includes a first component indicative of the spoken voice, a second component indicative of a feedback echo of the spoken voice and a third component indicative of the ambient noise, the speech enhancement filter filtering the audio signal by removing the third component to provide a filtered audio signal, the speech enhancement filter adapting to the audio signal at a first adaptation rate, and an adaptive acoustic echo cancellation system for receiving the filtered audio signal and removing the second component in the filtered audio signal to provide an echo-cancelled audio signal, the echo cancellation signal adapting to the filtered audio signal at a second adaption rate, wherein the first adaptation rate and the second adaptation rate are different from each other so that the speech enhancement filter does not adapt in response to operation of the echo-cancellation system and the echo-cancellation system does not adapt in response to operation of the speech enhancement filter.
摘要翻译：一种用于改善在具有环境噪声的内部舱室内说出的语音的清晰度的舱室通信系统包括：自适应语音增强滤波器，用于接收音频信号，该音频信号包括指示所述语音的第一组件，指示所述语音的反馈回声的第二组件语音增强滤波器通过去除第三分量来滤除音频信号以提供滤波的音频信号，语音增强滤波器以第一自适应速率适应音频信号，以及自适应声学回声消除系统，用于接收经滤波的音频信号并去除滤波后的音频信号中的第二分量以提供回声消除的音频信号，该回波消除信号以适应于第二适应速率的滤波后的音频信号，其中第一适应速率并且第二适应率彼此不同，使得语音enha 响应于回声消除系统的操作，接收滤波器不适应，并且响应于语音增强滤波器的操作，回波消除系统不适应。

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