Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1986-10-03
1988-09-20
Groody, James J.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 13, H04N 964
Patent
active
047729384
ABSTRACT:
Color video signal apparatus includes a digital memory for storing a frame of color video signal in a fast and efficient manner. A composite color video signal is separated into a luminance and two chrominance signals. A luminance analog to digital converter (ADC) converts the luminance signal into an N bit digital signal at a sampling frequency F. A chrominance ADC converts each of the two chrominance signals into an M bit digital signal having a sampling frequency 1/4 F, where M is an even integer. N bits of a sample of the digital luminance signal and 1/2 M bits of a sample of one of the two digital chrominance signals are simultaneously written into the memory. For each set of four successive N bit samples of digital luminance signal written into memory, an M bit sample of each of the two digital chrominance signals is also written into the memory. The invention is useful in video cassette recorders.
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Eastman Kodak Company
Groody James J.
Harvey David E.
Noval William F.
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