H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/42
H04N 9/64 (2006.01) H04N 9/68 (2006.01) H04N 9/77 (2006.01)
Patent
CA 1218145
TITLE OF THE INVENTION CIRCUIT ARRANGEMENT FOR REMOVING NOISE OF A COLOR VIDEO SIGNAL ABSTRACT OF THE DISCLOSURE A luminance signal and a chroma signal of a color video signal are processed respectively such that first and second signals are generated, where the first signal indicates the contour line of images represented by the video signal and the second signal includes noise included in the chroma signal and a signal component having an amplitude substantially equal to the peak to peak value of the noise. These first and second signals are then fed to either a switching circuit or a multiplier so that a resultant output signal having only the noise is obtained. The noise components are then subtracted, by way of a subtracted, from the chroma signal so that a chroma signal having no noise will be obtained.
457247
Kuriyama Takashi
Nakagaki Shintaro
Gowling Lafleur Henderson Llp
Victor Company Of Japan Ltd.
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