Color television camera with a single image pickup tube featurin

Details Color television camera with a single image pickup tube featurin Color television camera with a single image pickup tube featurin

1983-09-21

1985-12-17

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 37, 358 39, H04N 907, H04N 514

Patent

active

045595542

ABSTRACT:
In a color television camera of the type having a single image pickup tube with red, green and blue stripe filters for providing an electrical signal indicative of the image of an object, a luminance signal is separated by a low pass filter from the electrical signal, and a chrominance signal is also separated therefrom. A color difference signal is derived from the chrominance signal and is mixed with the luminance signal such that the polarity of the color difference signal is inverted relative to the luminance signal and a magnitude of the color difference signal is adjusted by a predetermined amount. The corrected luminance signal and a carrier chrominance signal are then combined to form a composite color video signal. A noise eliminating circuit is provided for improving the signal to noise ratio of the color difference signal used to correct the luminance signal.

REFERENCES:
patent: 2773116 (1956-12-01), Chatten
patent: 2923767 (1960-02-01), Altes
patent: 3688020 (1972-08-01), Kubota
patent: 4236176 (1980-11-01), Nagumo
Fink, Donald G. et al., Electronic Engineers' Handbook, Second Edition, McGraw-Hill, New York, 1982, Chapter 17, p. 38.

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