Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1983-06-07
1985-10-01
Masinick, Michael A.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 13, H04N 9535, H04N 932
Patent
active
045449449
ABSTRACT:
An auto-flesh circuit for a TV receiver is described which operates an I and Q color mixture signals to produce flesh corrected color mixture signals I' and Q'. The received I and Q signals are demodulated in respective circuitry to generate the magnitude and angle of their vector sum. The angle values are applied as address codes to a ROM programmed to produce the sines and cosines of the applied address codes. For address code angles corresponding to chrominance signals representing flesh tones, the values of the programmed sines and cosines correspond to values of flesh corrected chrominance angles. The sine and cosine values output by the ROM are then multiplied by the magnitude of the vector sum (chrominance magnitude) to produce corrected Q' and I' color mixture signals respectively.
REFERENCES:
patent: 3536827 (1967-11-01), Bell
patent: 3617621 (1971-11-01), Cochran
patent: 3649748 (1972-05-01), Knauer
patent: 3663744 (1972-05-01), Harwood
patent: 3852807 (1974-12-01), Caprio et al.
patent: 3873760 (1975-04-01), Worden
patent: 3952187 (1976-04-01), Robinson et al.
patent: 3996608 (1976-12-01), Harwood
patent: 4001879 (1977-01-01), Nagaoka et al.
patent: 4084178 (1978-04-01), Srivastava et al.
patent: 4434437 (1984-02-01), Strolle et al.
patent: 4500972 (1985-02-01), Kuhn et al.
patent: 4503453 (1985-03-01), Rougeolle et al.
Harwood et al., "Chroma Circuit Design for the CTC-49", RCA Engineer, vol. 15, No. 5, Feb./Mar. 1971, pp. 15-19.
"Digivision", Development Data, Aug. 1982, ITT Intermetall Semiconductors, Freiburg, Germany.
ITT Auto Flesh Processing Circuit.
Dunnam Michael P.
Herrmann E. P.
Masinick Michael A.
Rasmussen P. J.
RCA Corporation
LandOfFree
Auto-tint circuit for a TV receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Auto-tint circuit for a TV receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Auto-tint circuit for a TV receiver will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1445258