I-phase fleshtone correction system using R-Y, G-Y and B-Y color

Details I-phase fleshtone correction system using R-Y, G-Y and B-Y color I-phase fleshtone correction system using R-Y, G-Y and B-Y color

1985-06-26

1986-11-25

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

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358 23, H04N 964

Patent

active

046252339

ABSTRACT:
In a chrominance signal demodulating system a locally regenerated chrominance subcarrier signal is phase shifted to produce R-Y, G-Y and B-Y phase subcarrier signals, which are applied to respective color difference signal demodulators together with the chrominance signal to be demodulated for producing demodulated R-Y, G-Y and B-Y color image difference signals. The subcarrier signal is at the "I" phase and is processed by an automatic flesh tone correction network responsive to chrominance signal phases in the vicinity of I phase.

REFERENCES:
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patent: 3651418 (1972-03-01), Wiltmann
patent: 3816846 (1974-06-01), Nero et al.
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RCA Service Data Bulletin for CTC-131 Color Television Receiver, file 1984.

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