Television – Image signal processing circuitry specific to television – Hue control
Patent
1994-04-13
1995-06-27
Groody, James J.
Television
Image signal processing circuitry specific to television
Hue control
348652, 348 25, 348 29, 348 30, 348 28, H04N 964, H04N 973
Patent
active
054284023
ABSTRACT:
Tint detection circuit for automatically selecting a desired tint in a video signal, including a limit signal generator coupled to receive first (R), second (G) and third (R) color signals in order to generate first and second limit signals (CRITR, CRITB); a color-difference generator coupled to receive the first (R), second (G) and third (B) color signals in order to generate first and second color difference signals (G-R, G-B); and a window comparator coupled to the limit signal generator and to the color-difference generator in order to determine whether the first and second color difference signals (G-R, G-B) are within the windows determined by the first and second limit signals (CRITR, CRITB) so as to supply a tint detection signal.
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Goodman Edward W.
Groody James J.
U.S. Philips Corporation
West Nina M.
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