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12. 发明申请

US20150005845A1 Reduction of Transient Sounds in Hearing Implants 有权
标题翻译：减少听觉植入物中的瞬态声音
公开(公告)号：US20150005845A1
公开(公告)日：2015-01-01
申请号：US14488409
申请日：2014-09-17
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Florian Frühauf , Ernst Aschbacher
IPC分类号： A61N1/36
CPC分类号： A61N1/36032 , A61N1/0541 , A61N1/36036 , H04R2225/67 , H04R2430/03
摘要： A method is described for generating electrode stimulation signals for electrode contacts in a cochlear implant electrode array. An input audio signal is processed to generate band pass channel signals that each represent an associated band of audio frequencies. A channel envelope is extracted from each channel signal. The input audio signal and the channel envelopes are processed to produce transient reduced envelopes based on: i. determining for each channel envelope a normalized channel-specific transient indicator characterizing transient noise present in the channel signal, ii. determining a combined transient indicator as a function of the channel-specific transient indicators, and iii. applying a channel-specific gain to the channel envelopes as a function of the combined transient indicator to produce the transient reduced envelopes. The transient reduced envelopes are then used to generate electrode stimulation signals to the electrode contacts.
摘要翻译：描述了一种用于在耳蜗植入电极阵列中产生用于电极接触的电极刺激信号的方法。处理输入音频信号以产生每个表示相关联的音频频带的带通信道信号。从每个信道信号提取信道包络。输入音频信号和通道信封被处理以产生基于以下的瞬时缩小的信封：i。为每个信道包络确定表征信道信号中存在的瞬态噪声的归一化信道特定瞬态指示符，ii。确定组合的瞬时指示符作为通道特定瞬态指标的函数，以及iii。将通道特定的增益作为组合的瞬态指示器的函数应用于通道封套，以产生瞬时降低的信封。然后使用瞬时降低的包络线来产生电极触点的电极刺激信号。

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