H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/41
H04N 9/04 (2006.01) H04N 9/64 (2006.01)
Patent
CA 1191246
ABSTRACT OF THE DISCLOSURE A digital chrominance signal in a digital component television system is digitally filtered to obtain sampling values intermediate the sampled values obtained during analog to digital conversion of the chrominance signal, such that the . resultant number of chrominance samples per second in the digi- tized chrominance signal corresponds with the number of luminance samples per second in the digitized luminance signal. The sampled values of the digitized chrominance signal including the computed intermediate values may also be modified by said digitized filter to minimize the alias created by the analog to digital correction sampling process, to compensate this signal. for sine x/x losses existing in the digitized chrominance signal, to compensate for Gaussian filter attenuation of the chrominance signal prior to analog to digital conversion thereof, and to compensate for other deficiencies in the chrominance signal. the digital filter includes a network of at least one shift register and one digital adder that continuously calculates intermediate values between successive sample values of a digital chrominance signal, and incorporates said calculated values in a resultant chrominance signal.
395576
Ampex Corporation
Macrae & Co.
LandOfFree
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