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Pull-down signal detecting apparatus, pull-down signal detecting method, and video-signal converting apparatus
Pull-down signal detecting apparatus, pull-down signal detecting method, and video-signal converting apparatus
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机译:下拉信号检测设备,下拉信号检测方法和视频信号转换设备
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摘要
An inter-field pull-down pattern detecting circuit determines whether an input video signal is a first pull-down signal or a second pull-down signal, on the basis of input plug information and a pattern of the consecutive inter-field correlation levels, obtained from an inter-field correlation determination circuit. A counter counts the number of times the pattern detecting circuit determines that the input video signal is the first pull-down signal. The counter is reset to “0” when the input video signal is determined to be other than the first and second pull-down signals. When the count of the counter exceeds a preset value, the input video signal is finally determined to be the first pull-down signal.
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