Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1989-08-10
1990-07-10
McElheny, Jr., Donald
Facsimile and static presentation processing
Facsimile
Recording apparatus
358329, H04N 576
Patent
active
049410547
ABSTRACT:
A color video signal processing apparatus of the invention processes a signal with a first composite color video signal composed of at least a luminance signal and a chrominance signal converted to a second color video signal composed of at least the luminance signal and a color-difference line-sequential signal. The first composite color video signal is separated into the luminance and chrominance signals. The separated chrominance signals after having been converted to a color-difference line-sequential signal undergo signal-processing. To recover the chrominance signal from the processed color-difference line-sequential signal, it is after the latter has once been subjected to balanced modulation that the color-difference line-sequential signal is processed to the simultaneous form by making use of part of that circuit which is used to separate the first composite color video signal into the luminance and chrominance signals. The use of this feature makes it possible to achieve a simplification of the structure of construction of the circuitry and a reduction of the production cost.
REFERENCES:
patent: 4258384 (1981-03-01), Tatami
patent: 4613909 (1986-09-01), Tobe
patent: 4786978 (1988-11-01), Kawaski
Canon Kabushiki Kaisha
McElheny Jr. Donald
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