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2. 发明授权

US06243671B1 Device and method for analysis and filtration of sound 失效
标题翻译：用于分析和过滤声音的装置和方法
公开(公告)号：US06243671B1
公开(公告)日：2001-06-05
申请号：US09224942
申请日：1999-01-04
申请人： Thomas Lagö , Sven Olsson
发明人： Thomas Lagö , Sven Olsson
IPC分类号： G10L1516
CPC分类号： G10L15/08 , G01H3/08 , G10L25/18 , G10L25/30 , G10L25/51 , H03H21/0012
摘要： A device for analysis and filtration of sound which comprises at least one frequency-linear filter, at least one frequency-logarithmic filter and a weighting means for the combining and non-linear weighting of the output signals from the frequency-linear filter and the frequency-logarithmic filter. The sound is fed parallel as an input signal to the two sets of filters. In turn, the output signals from the filters are fed to the weighting means where they are combined and weighted non-linearly on the basis of magnitudes relevant to the sound. A decision with respect to the identity of the sound is made in a decision means. The invention also relates to a method for analyzing and filtering sound with the aid of the above-mentioned device.
摘要翻译：一种用于声音分析和过滤的装置，其包括至少一个频率 - 线性滤波器，至少一个频率对数滤波器和用于对来自频率 - 线性滤波器和频率的输出信号的组合和非线性加权的加权装置 - 对数滤波器声音作为输入信号并行馈送到两组滤波器。反过来，来自滤波器的输出信号被馈送到加权装置，在那里它们被组合并且基于与声音相关的幅度非线性地加权。在决定手段中作出关于声音身份的决定。本发明还涉及借助于上述装置分析和过滤声音的方法。

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