Color television signal processing circuit

Details Color television signal processing circuit Color television signal processing circuit

1982-12-29

1985-07-16

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 12, 358 13, 358 31, H04N 9535

Patent

active

045300046

ABSTRACT:
A color television signal processing circuit receives an input signal of a composite color television signal in the form of superimposition of a chrominance carrier signal on a luminance signal, separates the chrominance carrier signal and the luminance signal, and doubles the number of scanning lines of the chrominance signal or the luminance signal as compared to the number of scanning lines of the composite color television signal. A separation circuit separates the chrominance carrier signal and the luminance signal on the basis of a difference signal of the composite color television signal between adjacent frames or adjacent fields. A scanning line interpolation circuit doubles the number of scanning lines of at least the luminance signal delivered out of the separation circuit on the basis of an interpolation scanning signal derived from a signal indicative of scanning lines for the adjacent preceding field.

REFERENCES:
patent: 4348689 (1982-09-01), Achiha
patent: 4400719 (1983-08-01), Powers
patent: 4415931 (1983-11-01), Dischert

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