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    • 144. 发明申请
    • Cochlear Implant Stimulation with Low Frequency Channel Privilege
    • 人工耳蜗刺激与低频通道特权
    • US20140005746A1
    • 2014-01-02
    • US14017644
    • 2013-09-04
    • MED-EL Elektromedizinische Geraete GmbH
    • Peter SchleichDirk MeisterPeter Nopp
    • A61N1/36
    • A61N1/36032A61N1/36036H04R2225/67
    • A system and method for activating stimulation electrodes in cochlear implant electrode is described. A preprocessor filter bank is configured to process an input acoustic audio signal to generate band pass signals that each represent an associated band of audio frequencies. An information extractor is configured to extract stimulation signal information from the band pass signals based on assigning the band pass signals to corresponding electrode stimulation groups that each contain one or more stimulation electrodes, and generates a set of stimulation event signals for each electrode stimulation group that define electrode stimulation timings and amplitudes. A pulse selector is configured to select a set of electrode stimulation signals from the stimulation event signals based on a pulse weighting function that uses channel-specific weighting factors favoring lower frequencies for activating the stimulation electrodes to stimulate neighboring audio nerve tissue.
    • 描述了用于在耳蜗植入电极中激活刺激电极的系统和方法。 预处理器滤波器组被配置为处理输入的声学音频信号以产生每个表示相关联的音频频带的带通信号。 信息提取器被配置为基于将带通信号分配给每个包含一个或多个刺激电极的相应的电极刺激组从带通信号中提取刺激信号信息,并且为每个电极刺激组生成一组刺激事件信号, 定义电极刺激定时和振幅。 脉冲选择器被配置为基于脉冲加权函数从刺激事件信号中选择一组电极刺激信号,所述脉冲加权函数使用有利于较低频率的通道特定加权因子来激活刺激电极以刺激相邻的音频神经组织。