(Seat) force measuring device with a spring housing, inductive sensor and stops
    11.
    发明授权
    (Seat) force measuring device with a spring housing, inductive sensor and stops 失效
    (座椅)力测量装置,带有弹簧壳体,电感式传感器和止动件

    公开(公告)号:US07367228B2

    公开(公告)日:2008-05-06

    申请号:US10571019

    申请日:2004-09-07

    Abstract: The two housing parts are used as springing means which are mounted behind each other, thereby extending the full spring path. Despite the soft springs obtained by the housing, the individual housing parts can be manufactured from a stable material so that they remain dimensionally stable over a long-term period even when subjected to heavy stress by virtue of the fact that they are arranged between a vehicle seat and the chassis of the vehicle, thereby meeting the high quality standards required by the vehicle industry. Complex successive positioning of the springs inside the housing is avoided. As a result, it is possible to produce a force measuring device which is particularly compact, stable and economical. A coil with a core is used as an inductive deflection sensor.

    Abstract translation: 两个壳体部件用作彼此安装的弹簧装置,从而延伸整个弹簧路径。 尽管由壳体获得的软弹簧,但是单个壳体部件可以由稳定的材料制成,使得它们在长时间内保持尺寸稳定,即使当受到重的应力时,由于它们被布置在车辆 座椅和车底,从而达到汽车行业所要求的高质量标准。 避免弹簧在壳体内的复杂连续定位。 结果,可以制造特别紧凑,稳定和经济的力测量装置。 使用具有芯的线圈作为感应偏转传感器。

    Handsfree communication system
    12.
    发明申请
    Handsfree communication system 有权
    免提通信系统

    公开(公告)号:US20070172079A1

    公开(公告)日:2007-07-26

    申请号:US11701629

    申请日:2007-02-02

    Inventor: Markus Christoph

    Abstract: A handsfree communication system includes microphones, a beamformer, and filters. The microphones are spaced apart and are capable of receiving acoustic signals. The beamformer compensates for propagation delays between the direct and reflected acoustic signals. The filters are configured to a predetermined susceptibility level. The filter process the output of the beamformer to enhance the quality of the received signals.

    Abstract translation: 免提通信系统包括麦克风,波束形成器和滤波器。 麦克风间隔开并且能够接收声信号。 波束形成器补偿直接和反射声信号之间的传播延迟。 过滤器被配置为预定的敏感度水平。 滤波器处理波束形成器的输出以增强接收信号的质量。

    Earplug and manufacturing method
    13.
    发明申请
    Earplug and manufacturing method 有权
    耳塞和制造方法

    公开(公告)号:US20070000499A1

    公开(公告)日:2007-01-04

    申请号:US11474326

    申请日:2006-06-26

    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。

    Audio enhancement system
    14.
    发明申请
    Audio enhancement system 有权
    音频增强系统

    公开(公告)号:US20060251261A1

    公开(公告)日:2006-11-09

    申请号:US11410538

    申请日:2006-04-25

    Inventor: Markus Christoph

    CPC classification number: H03G3/32

    Abstract: A system for enhancing the sound signal produced by an audio system in a listening environment by compensating for ambient noise in the listening environment is provided. The system receives an electrical sound signal and generates a sound output therefrom. A total sound signal is sensed representative of the total sound level in the environment, where the total sound level includes both the sound output from the audio system and the ambient noise within the environment. The system extracts an ambient noise signal representative of the ambient noise in the environment from the total sound signal in response to the total sound signal and to a reference signal derived from the electrical sound signal. The system extracts the ambient noise signal using an adaptive filter with an adaptive step size. The system generates a control signal in response to the ambient noise signal and adjusts the sound output of the audio system to compensate for the ambient noise level in response to the control signal. The system calculates a step size for controlling the adaptive step size of the adaptive filter.

    Abstract translation: 提供一种用于通过在收听环境中补偿环境噪声来增强听觉环境中的音频系统产生的声音信号的系统。 系统接收电声信号并从中产生声音输出。 感测到的总声音信号代表环境中的总声级,其中总声级包括从音频系统输出的声音和环境中的环境噪声。 该系统响应于总声音信号和从电声信号导出的参考信号,从总声音信号中提取表示环境中的环境噪声的环境噪声信号。 系统使用具有自适应步长的自适应滤波器提取环境噪声信号。 该系统响应于环境噪声信号产生控制信号,并且响应于控制信号调整音频系统的声音输出以补偿环境噪声电平。 系统计算用于控制自适应滤波器的自适应步长的步长。

    Method and apparatus for dynamic sound optimization
    15.
    发明授权
    Method and apparatus for dynamic sound optimization 有权
    动态声音优化的方法和装置

    公开(公告)号:US06529605B1

    公开(公告)日:2003-03-04

    申请号:US09606726

    申请日:2000-06-29

    Inventor: Markus Christoph

    CPC classification number: H03G3/32 H03G5/005

    Abstract: A device and a method is presented in which an adjustment to the noise conditions is made for the purpose of controlling the volume and other variables of a desired signal offered in a monitored space, in the course of which, for the purpose of adjustment, a monitoring signal occurring at the monitoring point is picked up and split into a desired-signal component and a noise-signal component. These two components then become the basis for the adjustment.

    Abstract translation: 提出了一种装置和方法,其中对噪声条件的调整是为了控制在监视空间中提供的期望信号的体积和其他变量的目的,其中为了调整目的, 在监视点发生的监视信号被拾取并分成期望信号分量和噪声信号分量。 这两个组成部分成为调整的基础。

    Amplifier current consumption control
    17.
    发明授权
    Amplifier current consumption control 有权
    放大器电流消耗控制

    公开(公告)号:US09350314B2

    公开(公告)日:2016-05-24

    申请号:US13333468

    申请日:2011-12-21

    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制器增益,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。

    Sub-band signal processing
    18.
    发明授权
    Sub-band signal processing 有权
    子带信号处理

    公开(公告)号:US09148126B2

    公开(公告)日:2015-09-29

    申请号:US12633425

    申请日:2009-12-08

    Inventor: Markus Christoph

    CPC classification number: H03H17/0272 G06F17/17 H03H17/0657 H03H17/0664

    Abstract: An apparatus for sub-band processing of an input signal includes an analysis filter bank, signal processors and a synthesis filter bank. The analysis filter bank includes first and second signal branches for decomposing the input signal into two sub-band signals. The first signal branch includes a decimation filter connected upstream of a down-sampling unit and a basis filter. The second branch includes an all-pass filter and a subtractor that is connected downstream of the all-pass filter and the basis filter in the first signal branch via an up-sampling unit and a subsequent interpolation filter. At least one of the decimation filter and the interpolation filter is an infinite impulse response filter, and the all-pass filter has a phase response that compensates for a phase response of at least one of the decimation filter and the interpolation filter.

    Abstract translation: 用于输入信号的子带处理的装置包括分析滤波器组,信号处理器和合成滤波器组。 分析滤波器组包括用于将输入信号分解成两个子带信号的第一和第二信号分支。 第一信号分支包括连接在下采样单元的上游的抽取滤波器和基滤波器。 第二分支包括全通滤波器和减法器,其经由上采样单元和随后的内插滤波器连接在第一信号分支中的全通滤波器和基滤波器的下游。 抽取滤波器和内插滤波器中的至少一个是无限脉冲响应滤波器,全通滤波器具有补偿抽取滤波器和内插滤波器中的至少一个的相位响应的相位响应。

    Acoustic echo cancellation
    19.
    发明授权
    Acoustic echo cancellation 有权
    声回声消除

    公开(公告)号:US08712068B2

    公开(公告)日:2014-04-29

    申请号:US12710092

    申请日:2010-02-22

    Inventor: Markus Christoph

    CPC classification number: H04M9/082 H04B3/21

    Abstract: An input signal is supplied to a loudspeaker-room-microphone system having a transfer function and that provides an output signal. An adaptive filter unit models the transfer function of the loudspeaker-room-microphone system and provides an approximated output signal, where the output signal and the approximated output signal are subtracted from each other to provide an error signal. The modeling of the transfer function of the loudspeaker-room-microphone system in the adaptive filter comprises transforming the input signal and the error signal from the time domain into the spectral domain; delaying of the input signal in the frequency domain to generate multiple differently delayed input signals in the frequency domain; adaptive filtering of each one of the multiple differently delayed input signals in the frequency domain according to the error signal in the spectral domain; summing up of the filtered differently delayed input signals in the frequency domain to generate the approximated output signal in the frequency domain; and transforming the approximated output signal from the spectral domain into the time domain.

    Abstract translation: 输入信号被提供给具有传递函数并且提供输出信号的扬声器室麦克风系统。 自适应滤波器单元对扬声器 - 房间 - 麦克风系统的传递函数进行建模,并提供近似的输出信号,其中输出信号和近似输出信号被相互减去以提供误差信号。 自适应滤波器中扬声器 - 麦克风系统的传递函数的建模包括将输入信号和误差信号从时域变换为频域; 在频域中延迟输入信号以在频域中产生多个不同延迟的输入信号; 根据频域中的误差信号对频域中的多个不同延迟的输入信号中的每一个进行自适应滤波; 在频域中对被滤波的不同延迟的输入信号进行相加,以产生频域中的近似输出信号; 并将近似的输出信号从频域转换成时域。

    Adaptive noise control system with secondary path estimation
    20.
    发明授权
    Adaptive noise control system with secondary path estimation 有权
    具有二次路径估计的自适应噪声控制系统

    公开(公告)号:US08644521B2

    公开(公告)日:2014-02-04

    申请号:US12696862

    申请日:2010-01-29

    CPC classification number: G10K11/17817 G10K2210/1282 G10K2210/3022

    Abstract: An active noise cancellation system includes an adaptive filter, a signal source, an acoustic actuator, a microphone, a secondary path and an estimation unit. The adaptive filter receives a reference signal representing noise, and provides a compensation signal in response to the received reference signal. The signal source provides a measurement signal. The acoustic actuator radiates the compensation signal and the measurement signal to the listening position. The microphone receives a first signal that is a superposition of the radiated compensation signal, the radiated measurement signal, and the noise signal at the listening position, and provides a microphone signal in response to the received first signal. The secondary path includes a secondary path system that represents a signal transmission path between an output of the adaptive filter and an output of the microphone. The estimation unit estimates a transfer characteristic of the secondary path system in response to the measurement signal and the microphone signal.

    Abstract translation: 主动噪声消除系统包括自适应滤波器,信号源,声学致动器,麦克风,次级路径和估计单元。 自适应滤波器接收表示噪声的参考信号,并且响应于接收的参考信号提供补偿信号。 信号源提供测量信号。 声学执行器将补偿信号和测量信号辐射到收听位置。 麦克风接收在收听位置处的辐射补偿信号,辐射测量信号和噪声信号的叠加的第一信号,并响应于接收的第一信号提供麦克风信号。 次路径包括二次路径系统,其表示自适应滤波器的输出和麦克风的输出之间的信号传输路径。 估计单元响应于测量信号和麦克风信号来估计辅路径系统的传输特性。

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