Motion signal detecting circuit

H - Electricity – 04 – N

Patent

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Details

H04N 7/12 (2006.01) H04N 5/14 (2006.01) H04N 7/18 (2006.01) H04N 9/797 (2006.01)

Patent

CA 2048976

A motion signal detection circuit adapted to a video recording/reproducing apparatus having a frequency unfolding circuit for unfolding a luminance signal of a high frequency component included in the luminance signal of a low frequency component into an original frequency band, comprising a prefilter 10 for eliminating the folding carrier and sidebands thereof included in the video signal unfolded by the frequency unfolding circuit, a comb filter 60 for filtering the output of the prefilter 10 to detect a motion signal, an error compensation circuit for compensating the errors included in the motion signal output from the comb filter 60.

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