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发明授权
US07742111B2 Highlight detecting circuit and related method for audio feature-based highlight segment detection 失效
突出检测电路及相关方法，用于基于音频特征的高光段检测

Highlight detecting circuit and related method for audio feature-based highlight segment detection
摘要：
A highlight detecting circuit for detecting a highlight segment within a video signal includes a pitch-tracking module for estimating a plurality of pitch values for an audio signal; a pitch difference detecting module coupled to the pitch-tracking module for computing a plurality of pitch difference values according to the pitch values; and a highlight detecting module coupled to the pitch difference detecting module for determining a starting point and a stopping point of the highlight segment according to the pitch difference values.
摘要（中）：

用于检测视频信号内的高亮段的高亮检测电路包括用于估计音频信号的多个音调值的音调跟踪模块; 音调差分检测模块，耦合到音调跟踪模块，用于根据音调值计算多个音调差值; 以及耦合到所述音调差检测模块的高亮度检测模块，用于根据音调差值确定高亮片段的起点和停止点。

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