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71. 发明授权

US07894598B2 System for limiting receive audio 有权
标题翻译：限制接收音频的系统
公开(公告)号：US07894598B2
公开(公告)日：2011-02-22
申请号：US11012079
申请日：2004-12-14
申请人： Gerhard Uwe Schmidt , Tim Haulick , Clarence Chu , David Giesbrecht
发明人： Gerhard Uwe Schmidt , Tim Haulick , Clarence Chu , David Giesbrecht
IPC分类号： H04M9/08
CPC分类号： H04M9/082
摘要： A system for limiting a received audio signal in a communication system is provided. The receive audio signal is limited prior to being played over a loudspeaker to insure that the loudspeaker output will not be clipped when picked up by a nearby microphone associated with the communication system. By preventing clipping of the loudspeaker output at the microphone, the transfer function of the loudspeaker-enclosure-microphone system remains linear, facilitating accurate echo cancellation in the communication system.
摘要翻译：提供了一种用于限制通信系统中接收到的音频信号的系统。接收音频信号在通过扬声器播放之前受到限制，以确保当与通信系统相关联的附近的麦克风拾取时扬声器输出将不被削波。通过防止麦克风上的扬声器输出的削波，扬声器 - 麦克风系统的传输功能保持线性，便于在通信系统中进行精确的回波消除。

72. 发明授权

US06687669B1 Method of reducing voice signal interference 有权
标题翻译：降低语音信号干扰的方法
公开(公告)号：US06687669B1
公开(公告)日：2004-02-03
申请号：US09214910
申请日：1999-11-03
申请人： Peter Schrögmeier , Tim Haulick , Klaus Linhard
发明人： Peter Schrögmeier , Tim Haulick , Klaus Linhard
IPC分类号： G10L2102
CPC分类号： G10L21/0208 , G10L21/0264
摘要： In a method for reducing interferences in a voice signal, a noise reduction method is applied to the voice signal, and spectral psychoacoustic masking is taken into account. A spectral masking curve is determined both for the input signal and the output signal of the noise reduction method. By comparing the signal portions exceeding the respective masking curve, newly-audible portions are detected in the form of interference in the output signal and subsequently damped selectively.
摘要翻译：在减少语音信号干扰的方法中，将噪声降低方法应用于语音信号，并考虑频谱心理声学掩蔽。确定噪声降低方法的输入信号和输出信号的频谱掩蔽曲线。通过比较超过相应屏蔽曲线的信号部分，以可能的形式在输出信号中检测新的可听见的部分，然后选择性地衰减。

73. 发明授权

US09111544B2 Mono and multi-channel echo compensation from selective output 有权
标题翻译：选择输出的单通道和多通道回波补偿
公开(公告)号：US09111544B2
公开(公告)日：2015-08-18
申请号：US13368092
申请日：2012-02-07
申请人： Gerhard Uwe Schmidt , Tim Haulick , Harald Lenhardt
发明人： Gerhard Uwe Schmidt , Tim Haulick , Harald Lenhardt
IPC分类号： G10L21/02 , H04B3/20 , H04R3/12 , H04R3/02 , G10L21/0208
CPC分类号： G10L21/02 , G10L2021/02082 , H04R3/02 , H04R2499/13
摘要： A system and method for compensating audio signal components is disclosed. The method includes detecting, by a microphone, a sound signal. The sound signal comprises audio signal components resulting from reproducing an audio signal of an audio source and speech signal components corresponding to a speech signal from a person. The sound signal is filtered to whiten the sound signal. The audio signal components in the whitened sound signal are then compensated. The whitening of the compensated sound signal is removed. The filtering of the audio signal is performed using at least two filters in an alternating way, each filter using time-dependent filter coefficients.
摘要翻译：公开了用于补偿音频信号分量的系统和方法。该方法包括通过麦克风检测声音信号。该声音信号包括从再现音频源的音频信号和对应于来自人的语音信号的语音信号分量产生的音频信号分量。声音信号被过滤以使声音信号变白。然后补偿白化的声音信号中的音频信号分量。消除补偿声音信号的白化。使用至少两个滤波器以交替方式来执行音频信号的滤波，每个滤波器使用时间依赖滤波器系数。

74. 发明授权

US06643619B1 Method for reducing interference in acoustic signals using an adaptive filtering method involving spectral subtraction 有权
标题翻译：使用涉及频谱减法的自适应滤波方法减少声信号干扰的方法
公开(公告)号：US06643619B1
公开(公告)日：2003-11-04
申请号：US09530527
申请日：2000-06-20
申请人： Klaus Linhard , Tim Haulick
发明人： Klaus Linhard , Tim Haulick
IPC分类号： G10L1520
CPC分类号： G10L21/02
摘要： A method for reducing interference in acoustic signals by using of an adaptive filter method involving spectral subtraction. The inventive method enables a significant reduction of interference in acoustic signals, especially voice signals, without causing any substantial falsification of said signals such as echo or musical tones, and significantly reduces computational requirements in comparison with other methods known per se that are similarly designed to improve signal quality.
摘要翻译：一种通过使用涉及频谱减法的自适应滤波方法来减少声信号干扰的方法。本发明的方法能够显着降低声信号，特别是语音信号的干扰，而不会导致诸如回声或音调之类的所述信号的任何实质性伪造，并且与本身已知的本身已知的其它方法相比，显着降低计算要求，提高信号质量。

75. 发明授权

US08175290B2 Feedback reduction system 有权
标题翻译：反馈减少系统
公开(公告)号：US08175290B2
公开(公告)日：2012-05-08
申请号：US11775687
申请日：2007-07-10
申请人： Tim Haulick , Gerhard Uwe Schmidt , Harald Lenhardt
发明人： Tim Haulick , Gerhard Uwe Schmidt , Harald Lenhardt
IPC分类号： H04B15/00
CPC分类号： H04M9/082
摘要： A feedback reduction system adaptively processes a microphone signal. An adaptive feedback suppression filter circuit processes the microphone signal, and an adaptive feedback compensation filter circuit further processes the microphone signal. The adaptive feedback suppression filter circuit processes the signal based upon output from the adaptive filter compensation filter circuit.
摘要翻译：反馈减少系统自适应地处理麦克风信号。自适应反馈抑制滤波器电路处理麦克风信号，并且自适应反馈补偿滤波器电路进一步处理麦克风信号。自适应反馈抑制滤波器电路根据自适应滤波器补偿滤波器电路的输出来处理该信号。

76. 发明授权

US08724822B2 Noisy environment communication enhancement system 有权
标题翻译：嘈杂的环境通信增强系统
公开(公告)号：US08724822B2
公开(公告)日：2014-05-13
申请号：US11924987
申请日：2007-10-26
申请人： Tim Haulick , Gerhard Uwe Schmidt
发明人： Tim Haulick , Gerhard Uwe Schmidt
IPC分类号： H04B3/20
CPC分类号： H04R3/005 , G10L2021/02082 , G10L2021/02165 , G10L2021/02166 , H04M9/082 , H04R2410/05 , H04R2430/23 , H04R2430/25 , H04R2499/13
摘要： A communication system enhances communications in a noisy environment. Multiple input arrays convert a voiced or unvoiced signal into an analog signal. A converter receives the analog signal and generates digital signals. A digital signal processor determines temporal and spatial information from the digital signals. The processed signals are then converted to audible sound.
摘要翻译：通信系统在嘈杂的环境中增强通信。多输入阵列将有声或无声信号转换为模拟信号。 A转换器接收模拟信号并产生数字信号。数字信号处理器根据数字信号确定时间和空间信息。经处理的信号然后被转换为可听见的声音。

77. 发明申请

US20120201396A1 AUDIO SIGNAL COMPONENT COMPENSATION SYSTEM 有权
标题翻译：音频信号分量补偿系统
公开(公告)号：US20120201396A1
公开(公告)日：2012-08-09
申请号：US13368092
申请日：2012-02-07
申请人： Gerhard Uwe Schmidt , Tim Haulick , Harald Lenhardt
发明人： Gerhard Uwe Schmidt , Tim Haulick , Harald Lenhardt
IPC分类号： G10K11/16
CPC分类号： G10L21/02 , G10L2021/02082 , H04R3/02 , H04R2499/13
摘要： A system and method for compensating audio signal components is disclosed. The method includes detecting, by a microphone, a sound signal. The sound signal comprises audio signal components resulting from reproducing an audio signal of an audio source and speech signal components corresponding to a speech signal from a person. The sound signal is filtered to whiten the sound signal. The audio signal components in the whitened sound signal are then compensated. The whitening of the compensated sound signal is removed. The filtering of the audio signal is performed using at least two filters in an alternating way, each filter using time-dependent filter coefficients.
摘要翻译：公开了用于补偿音频信号分量的系统和方法。该方法包括通过麦克风检测声音信号。该声音信号包括从再现音频源的音频信号和对应于来自人的语音信号的语音信号分量产生的音频信号分量。声音信号被过滤以使声音信号变白。然后补偿白化的声音信号中的音频信号分量。消除补偿声音信号的白化。使用至少两个滤波器以交替方式来执行音频信号的滤波，每个滤波器使用时间依赖滤波器系数。

78. 发明授权

US08165310B2 Dereverberation and feedback compensation system 有权
标题翻译：混响和反馈补偿系统
公开(公告)号：US08165310B2
公开(公告)日：2012-04-24
申请号：US11411004
申请日：2006-04-25
申请人： Markus Christoph , Tim Haulick , Gerhard Uwe Schmidt
发明人： Markus Christoph , Tim Haulick , Gerhard Uwe Schmidt
IPC分类号： H04B3/20 , A61F11/06 , H04R3/00
CPC分类号： H04M3/56 , G10L2021/02082 , H04M9/082 , H04R3/005 , H04R3/02 , H04R3/12 , H04R2499/13
摘要： A dereverberation and feedback compensation system reduces the echo received by a first audio device while reducing the speech feedback received from a second audio device. A decorrelation logic decorrelates audio signals from the first audio device. A first processor generates a noise compensation signal based on the decorrelated audio signals and system determined filter coefficients. The second processor generates an enhanced noise correlation signal based on speech signals of a second audio device and the filter coefficients used by the first processor.
摘要翻译：去混响和反馈补偿系统减少由第一音频设备接收的回声，同时减少从第二音频设备接收的语音反馈。解相关逻辑去除了来自第一音频设备的音频信号。第一处理器基于去相关音频信号和系统确定的滤波器系数产生噪声补偿信号。第二处理器基于第二音频设备的语音信号和由第一处理器使用的滤波器系数产生增强的噪声相关信号。

79. 发明申请

US20060195324A1 Voice input interface 审中-公开
标题翻译：语音输入接口
公开(公告)号：US20060195324A1
公开(公告)日：2006-08-31
申请号：US10534764
申请日：2003-11-12
申请人： Christian Birk , Tim Haulick , Klaus Linhard
发明人： Christian Birk , Tim Haulick , Klaus Linhard
IPC分类号： G10L21/00
CPC分类号： G10L15/28
摘要： A voice input system comprising a stationary central unit (1) and a mobile voice interface (2) which is carried around by the user, e.g. in his clothing, is described. The voice interface (2) is used to acoustically record spoken commands which are transmitted to the central unit (1) over a wireless link after being electronically processed. The voice interface contains two or more microphones (3a, 3b, 3c), which cooperate as a microphone array, thereby making possible a directional characteristic during sound recording and also substantial noise suppression. The central unit (1) contains the components for speech recognition, e.g. a processor system, and interfaces (4a. 4b, 4c) via which external appliances are controlled over a wireless link or by cable.
摘要翻译：一种语音输入系统，包括固定中央单元（1）和移动语音接口（2），所述移动语音接口（2）由用户携带。在他的衣服，被描述。语音接口（2）用于在电子处理之后通过无线链路来声学地记录被传送到中央单元（1）的口令命令。语音接口包含两个或更多个麦克风（3a，3b，3c），它们作为麦克风阵列配合，从而在声音记录期间成为可能的方向特性，并且还可以进行实质的噪声抑制。中央单元（1）包含用于语音识别的组件，例如处理器系统以及通过无线链路或通过电缆来控制外部设备的接口（4,4a，4b）。

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