Reproduction apparatus
AssigneeCanon Kabushiki Kaisha
InventorSomei Kawasaki
Life of this patent
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Abstract
A reproducing apparatus for reproducing a video signal from a recording medium having color signal and luminance signal separated from a composite color television signal recorded thereon, which includes means for applying the reproduced luminance signal to a comb filter in order to remove the color information which leaked into the luminance signal when recording, and means for compensating the deterioration of the reproduced luminance signal resulting from said comb filter.
Claims21
A reproducing apparatus for reproducing a luminance signal recorded on a recording medium with with improved signal-to-noise ratio, including:
- (a) reproducing means for reproducing the luminance signal recorded on said recording medium;
- (b) separating means for separating such reproduced luminance signal into a first signal including a prescribed rate of noise component and into a second signal including a smaller rate of noise component than that of said first signal;
- (c) removing means for removing said noise component of said first signal to thereby produce a third signal;
- and
- (d) adder means for adding said third signal to said second signal to produce an apparatus output signal.
A recording and reproducing apparatus comprising:
- (a) a comb filter for separating an incoming video signal into a luminance signal and a color signal;
- (b) recording means for receiving the separated luminance signal and the separated color signal on a recording medium;
- (c) means for reproducing separately from the signals recorded on said meidum the recorded luminance signal and the recorded color signal;
- and
- (d) means for applying such separated reproduced luminance signal to said comb filter and for processing such filtered reproduced luminance signal for reducing color signal content therein.
In a recording and reproducing apparatus, a signal processing device for the recording and reproducing of an incoming color video signal, comprising:
- (a) separation means for receving said video signal and for separating therefrom its luminance signal and its color signal, including delay means having a delay time time equal to one horizontal period of said video signal;
- (b) recording means for receiving such separated color signal and such separated luminance signal, for modulating such received signals and for recording such modulated signals on a recording meidum;
- (c) reproducing means for reproducing such recorded signals including said luminance signal and said color signal from said medium;
- and
- (d) means for applying said reproduced luminance signal to said separation means, whereby said delay means operates thereon, and for processing such delayed reproduced luminance signal for reducing color signal content in siad reproduced luminance signal.
Dependencies are inferred from the claim text.