Motion signal detecting circuit

Details Motion signal detecting circuit Motion signal detecting circuit

1991-06-07

1994-06-14

Groody, James J.

Television

Bandwidth reduction system

Format type

348340, 348341, 348607, 348431, H04N 718

Patent

active

053215079

ABSTRACT:
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 for eliminating the folding carrier and sidebands thereof included in the video signal unfolded by the frequency unfolding circuit, a comb filter for filtering the output of the prefilter to detect a motion signal, an error compensation circuit for compensating the errors included in the motion signal output from the comb filter.

REFERENCES:
patent: 4692801 (1987-09-01), Ninomiya et al.
patent: 4831463 (1989-05-01), Faroudja
patent: 4868650 (1989-09-01), Weckenbrock
patent: 4972259 (1990-11-01), Motoe et al.
patent: 4982271 (1991-01-01), Sugiyama et al.
patent: 5031030 (1991-07-01), Hurst , Jr.
patent: 5083203 (1992-01-01), Ko et al.
patent: 5113262 (1992-05-01), Strolle et al.

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