公开(公告)号：US08340317B2

公开(公告)日：2012-12-25

申请号：US10842056

申请日：2004-05-06

Applicant: Gerhard Pfaffinger ,  Markus Christoph

Inventor： Gerhard Pfaffinger ,  Markus Christoph

IPC: H04B15/00 ,  H04R27/00 ,  H04R3/00

CPC classification number: H04S7/30 ,  H04R2499/13 ,  H04S7/301

Abstract: An audio processing system is provided for controlling the acoustics of a loudspeaker-room system. The loudspeaker-room system having a listening room and loudspeakers located in said listening room, and transfer functions with linear and non-linear components. The audio processing system comprises a compensator with a transfer function for obtaining at least two compensated signals from the input signals. The transfer functions of the compensator may include linear and non-linear components and are inverse to the transfer functions of the loudspeaker-room system to the extent that a desired overall transfer function is established.

Abstract translation: 提供一种用于控制扬声器室系统的声学的音频处理系统。 扬声器室系统具有听音室和位于所述听音室中的扬声器，并且具有线性和非线性分量的传递功能。 音频处理系统包括具有传递函数的补偿器，用于从输入信号获得至少两个补偿信号。 补偿器的传递函数可以包括线性和非线性分量，并且在建立期望的整体传递函数的程度上与扬声器室系统的传递函数相反。

公开(公告)号：US20120154037A1

公开(公告)日：2012-06-21

申请号：US13333468

申请日：2011-12-21

Applicant: Gerhard Pfaffinger ,  Franz Lorenz ,  Stefan Zuckmantel ,  Markus Christoph

Inventor： Gerhard Pfaffinger ,  Franz Lorenz ,  Stefan Zuckmantel ,  Markus Christoph

IPC: H03G3/20

CPC classification number: H03G3/20 ,  H03F3/181 ,  H03F2200/03 ,  H03F2200/165 ,  H03G7/007

Abstract: The audio amplifier includes a variable gain amplifier receiving the input audio signal and providing the output signal, whereby the output signal corresponds to the input signal amplified by a limiter gain. The audio amplifier further includes a limiter gain calculation unit, thus the input signal is amplified by the limiter gain. A control unit receives a signal representative of the input signal and is configured to estimate, based on a mathematical model, the input current or the total output current of the audio amplifier thus providing an estimated current signal corresponding to (and resulting from) the output signal, whereby the limiter gain calculation unit is configured to calculate, dependent on the estimation, the limiter gain such that the actual input current or the total output current of the audio amplifier does not exceed a threshold current value.

Abstract translation: 音频放大器包括可变增益放大器，其接收输入音频信号并提供输出信号，由此输出信号对应于通过限制器增益放大的输入信号。 音频放大器还包括限幅器增益计算单元，因此输入信号被限幅器增益放大。 控制单元接收表示输入信号的信号，并且被配置为基于数学模型来估计音频放大器的输入电流或总输出电流，从而提供对应于输出（并由其产生）的估计电流信号 信号，由此限制器增益计算单元被配置为根据估计来计算限幅器增益，使得音频放大器的实际输入电流或总输出电流不超过阈值电流值。

公开(公告)号：US08184828B2

公开(公告)日：2012-05-22

申请号：US12729839

申请日：2010-03-23

Applicant: Markus Christoph

Inventor： Markus Christoph

IPC: H04B15/00 ,  H04R29/00

CPC classification number: G10L21/0272 ,  G10L21/0216 ,  G10L2021/02082

Abstract: A system for estimating the background noise in a loudspeaker-room-microphone system is presented herein where the loudspeaker is supplied with a source signal and the microphone picks up the source signal distorted by the room and provides a distorted signal. The system comprises an adaptive filter receiving the source signal and the distorted signal, and providing an error signal, a post filter connected downstream of the adaptive filter and a smoothing filter arrangement connected downstream of the adaptive filter. The smoothing filter arrangement includes a spectral domain smoothing filter that provides a spectral domain estimated-noise signal, and a time domain smoothing filter that provides a time domain estimated-noise signal. A scaling factor calculation unit receives signals indicative of the spectral domain estimated noise signal and the time domain estimated noise signal provides a scaling factor to a scaling unit that applies the scaling factor to the spectral domain estimated-noise signal to provide an enhanced spectral domain estimated-noise signal.

Abstract translation: 本文给出了一种用于估计扬声器室麦克风系统中的背景噪声的系统，其中扬声器被提供有源信号，并且麦克风拾取由房间失真的源信号，并提供失真的信号。 该系统包括接收源信号和失真信号的自适应滤波器，并提供误差信号，连接在自适应滤波器下游的后滤波器和连接在自适应滤波器下游的平滑滤波器装置。 平滑滤波器装置包括提供频域估计噪声信号的频域平滑滤波器和提供时域估计噪声信号的时域平滑滤波器。 比例因子计算单元接收指示频域估计噪声信号的信号，并且时域估计噪声信号向缩放单元提供缩放因子，该缩放单元将缩放因子应用于频域估计噪声信号，以提供估计的增强频域 -noise信号。

公开(公告)号：US08170221B2

公开(公告)日：2012-05-01

申请号：US11944876

申请日：2007-11-26

Applicant: Markus Christoph

Inventor： Markus Christoph

IPC: H03G3/20 ,  H04B1/00

CPC classification number: H03G3/32 ,  H03G3/3089 ,  H04S3/00

Abstract: An audio enhancement system for compensating for ambient noise in a listening environment, comprises an audio system that produces an electrical sound signal and generates a sound output from the electrical sound signal. A sensor (e.g., a microphone) senses a total sound signal representative of the total sound level in the listening environment, including the sound output from the audio system and the ambient noise within the listening environment. A processing unit responsive to the total sound signal and the electrical sound signal extracts from the total sound signal an ambient noise signal representative of the ambient noise in the listening environment. A controller responsive to the ambient noise signal performs a linear predictive coding (LPC) analysis and generates a control signal, which is input to an equalizer to adjust the sound output of the audio system in order to compensate for the ambient noise level.

Abstract translation: 一种用于在收听环境中补偿环境噪声的音频增强系统，包括产生电声信号并从电声信号产生声音输出的音频系统。 传感器（例如，麦克风）感测表示听音环境中的总声音水平的总声音信号，包括来自音频系统的声音输出和听音环境中的环境噪声。 响应于总声音信号和电声信号的处理单元，从总声音信号中提取代表听觉环境中的环境噪声的环境噪声信号。 响应于环境噪声信号的控制器执行线性预测编码（LPC）分析，并产生控制信号，该控制信号被输入到均衡器以调整音频系统的声音输出，以补偿环境噪声水平。

公开(公告)号：US08160278B2

公开(公告)日：2012-04-17

申请号：US12269391

申请日：2008-11-12

Applicant: Markus Christoph ,  Florian Wolf ,  Peter Perzlmaier

Inventor： Markus Christoph ,  Florian Wolf ,  Peter Perzlmaier

IPC: H04R5/00

CPC classification number: H04S3/02 ,  H04S7/30 ,  H04S2400/09

Abstract: A system automatically mixes a first audio signal and a second audio signal. The system includes a correlator that determines whether the first signal and the second signal are correlated according to a predetermined correlation criterion. If the predetermined correlation criterion is fulfilled, the correlator determines whether the first and the second signal are delayed. A delay circuit compensates for the delay between the first signal and the second signal. A mixer mixes the first signal and the second signal that includes a compensation.

Abstract translation: 系统自动混合第一音频信号和第二音频信号。 该系统包括相关器，其根据预定的相关标准确定第一信号和第二信号是否相关。 如果满足预定的相关标准，则相关器确定第一和第二信号是否被延迟。 延迟电路补偿第一信号和第二信号之间的延迟。 混合器混合第一信号和包括补偿的第二信号。

公开(公告)号：US08144882B2

公开(公告)日：2012-03-27

申请号：US12109786

申请日：2008-04-25

Applicant: Markus Christoph ,  Leander Scholz

Inventor： Markus Christoph ,  Leander Scholz

IPC: H03G3/20 ,  G10L15/00

CPC classification number: H03G5/005 ,  H03G3/32 ,  H03G9/005 ,  H04R3/14 ,  H04R2499/13 ,  H04S7/301 ,  H04S7/307

Abstract: The invention relates to a method for automated tuning of a sound system, the sound system comprising delay lines, equalizing filters, and at least two loudspeakers, the method comprising the steps of reproducing a useful sound signal through the loudspeakers, measuring sound pressure values at at least one location, providing a target transfer function for tuning the delay lines and the equalizing filters of the sound system, the target transfer function representing a desired transfer characteristics of the sound system, adjusting the delay of the delay lines, and adjusting amplitude responses of the equalizing filters such, that the actual transfer characteristics of the sound system approximates the target function.

Abstract translation: 本发明涉及一种用于声音系统的自动调谐的方法，所述声音系统包括延迟线，均衡滤波器和至少两个扬声器，所述方法包括以下步骤：通过扬声器再现有用的声音信号，测量声压值 至少一个位置，提供用于调谐声音系统的延迟线和均衡滤波器的目标传递函数，表示声音系统的期望传输特性的目标传递函数，调整延迟线的延迟以及调整幅度响应 的均衡滤波器，使得声音系统的实际传输特性近似于目标功能。

公开(公告)号：US20110216807A1

公开(公告)日：2011-09-08

申请号：US13038964

申请日：2011-03-02

Applicant: Markus Christoph

Inventor： Markus Christoph

IPC: H04B1/69

CPC classification number: H03H21/0012 ,  G10L19/0204

Abstract: A method for designing a set of sub-band FIR filters, where each FIR filter has a number of filter coefficients and is connected to an adjustable delay line. The method includes dividing an input signal into a number of sub-band signals, where a spectrum of the input signal comprises spectra of the sub-band signals; providing a respective goal sub-band signal for each sub-band dependent on a goal signal; filtering and delaying each sub-band signal using a corresponding FIR filter and delay line to provide filtered signals; providing error signals for each sub-band dependent on the filtered signals and the corresponding goal signals; adapting the filter coefficients of each sub-band FIR filter such that the respective filtered signal approximately matches a corresponding goal sub-band signal; and changing a respective delay of the delay line for each sub-band to reduce or increase a first quality criterion.

Abstract translation: 一种用于设计一组子带FIR滤波器的方法，其中每个FIR滤波器具有多个滤波器系数并连接到可调延迟线。 该方法包括将输入信号划分成多个子带信号，其中输入信号的频谱包括子带信号的频谱; 根据目标信号为每个子带提供相应的目标子带信号; 使用对应的FIR滤波器和延迟线对每个子带信号进行滤波和延迟以提供滤波信号; 根据滤波信号和相应的目标信号，为每个子带提供误差信号; 调整每个子带FIR滤波器的滤波器系数，使得相应的滤波信号近似匹配对应的目标子带信号; 并且改变每个子带的延迟线的相应延迟以减少或增加第一质量标准。

公开(公告)号：US07891360B2

公开(公告)日：2011-02-22

申请号：US11474326

申请日：2006-06-26

Applicant: Karl Buck ,  Markus Christoph

Inventor： Karl Buck ,  Markus Christoph

IPC: A61F11/00 ,  A61F11/06

CPC classification number: H04R1/1016 ,  A61F11/08 ,  H04R17/00

Abstract: An earplug that includes a piezoelectric element that converts electrical signals into oscillations; and a deformable material of which at least one segment is insertable into an external auditory canal of a person to ensure an acoustic seal by deformation, the piezoelectric element being disposed inside the deformable material and in fixed contact therewith, the deformable material being able to transmit the oscillations at a periphery and ensure conduction of the oscillations through cartilage and soft tissue of the auditory canal.

Abstract translation: 耳塞，其包括将电信号转换为振荡的压电元件; 以及可变形材料，其中至少一个区段可插入到人的外耳道中以确保通过变形的声学密封，所述压电元件设置在所述可变形材料的内部并与其固定接触，所述可变形材料能够传递 周围的振荡并确保通过软骨和软组织的耳道的振荡的传导。

公开(公告)号：US07826623B2

公开(公告)日：2010-11-02

申请号：US10563072

申请日：2004-06-30

Applicant: Markus Christoph

Inventor： Markus Christoph

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/23 ,  H04R2430/25 ,  H04R2499/13

Abstract: The invention is directed to a handsfree system for use in a vehicle comprising a microphone array with at least two microphones and a signal processing means wherein the signal processing means comprises the superdirective beamformer with fixed superdirective filters.

Abstract translation: 本发明涉及一种用于车辆的免提系统，其包括具有至少两个麦克风的麦克风阵列和信号处理装置，其中所述信号处理装置包括具有固定超向量滤波器的超向波束形成器。

公开(公告)号：US20100244411A1

公开(公告)日：2010-09-30

申请号：US12744150

申请日：2008-11-20

Applicant: Markus Christoph ,  Christian Plankl

Inventor： Markus Christoph ,  Christian Plankl

IPC: B60R21/20

CPC classification number: B60R21/20 ,  B60R11/00 ,  B60R11/02 ,  B60R2011/0059 ,  B60R2011/0061

Abstract: An airbag satellite is latched and/or suspended in a wall opening. The airbag satellite has a blockage element, which blocks a plug and which is implemented such that it allows the correct installation of the airbag satellite to be checked. The blockage of the plug by the blockage element is cancelled if the check shows that the airbag satellite is installed correctly.

Abstract translation: 安全气囊卫星被锁定和/或悬挂在墙壁开口中。 安全气囊卫星具有阻塞元件，其阻塞插塞并且被实现为允许正确安装要检查的安全气囊卫星。 如果检查显示安全气囊卫星安装正确，则阻塞元件堵塞插头。