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Adaptive comb filter circuit including a plurality of filters and a switching means which results in improved movement detection in television signals
Adaptive comb filter circuit including a plurality of filters and a switching means which results in improved movement detection in television signals
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机译:自适应梳状滤波器电路,包括多个滤波器和一个开关装置,可以改善电视信号中的运动检测
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摘要
A moving detection circuit which has a difference level generator which includes at least a frame delay circuit, and a vertical correlation detector which is connected to the difference signal generator and including a plurality of filters connected to the difference signal generator. A switching circuit for selecting one of the plurality of filters is provided and a control circuit is connected to the vertical correlation detector so as to control the switching circuit in response to the output level of the vertical correlation detector.
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