Automatic hue-control apparatus for color television receivers

Details Automatic hue-control apparatus for color television receivers Automatic hue-control apparatus for color television receivers

1970-09-17

1977-01-04

Griffin, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 912

Patent

active

040018792

ABSTRACT:
An automatic hue-control apparatus having an improved means to keep the color for flesh in the reproduced picture the same as the memory-color for flesh. The apparatus has a signal extracting means for extracting the signal components of the flesh color from the chrominance signals and which feeds these signal components to a phase error detecting means for detecting the phase error between the output signal of the signal extracting means and a reference signal which is in phase quadrature to the phase of the memory-color for flesh. The phase error detecting means produces an error signal indicative of the phase relation between the signals and supplies an output signal to a variable phase-shifting means which is controlled by the output signal of said phase error detecting means to correct the phase error between the chrominance signal and subcarrier reference signal.

REFERENCES:
patent: 2888514 (1959-05-01), Pritchard
patent: 3525802 (1970-08-01), Whiteneir, Jr.
"Automatic Controls for Color Television" by Z. Wiencek in Electronics May 15, 1959, pp. 58-59.

Affiliated with

Also associated with

Rating

Automatic hue-control apparatus for color television receivers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic hue-control apparatus for color television receivers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic hue-control apparatus for color television receivers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-260452