Television – Image signal processing circuitry specific to television – Hue control
Patent
1994-11-18
1996-04-23
Greening, Wendy R.
Television
Image signal processing circuitry specific to television
Hue control
348651, H04N 973
Patent
active
055108504
ABSTRACT:
This invention is related to a video signal color correction device. Color information signal inputs are received in rectangular form. A coordinates conversion means converts the inputs into polar coordinates using one of the inputs as a polar axis. The device has a correction data storing means in which are stored luminance signal correction data dependent on a luminance signal and the polar coordinates and color information signal correction data. The correction data storing means outputs the luminance signal correction data and the color information signal correction data in accordance with the luminance signal and the polar coordinates. A correction means corrects the luminance signal and the polar coordinates on the basis of the luminance signal correction data and the color information signal correction data output from the correction data storing means. The correction means may include addition means for adding the luminance signal correction data to the luminance signal and the color information signal correction data to the polar coordinates.
REFERENCES:
patent: 4500919 (1985-02-01), Schreiber
patent: 4731662 (1988-03-01), Udagawa et al.
patent: 4819077 (1989-04-01), Kikuchi et al.
patent: 5089882 (1992-02-01), Kaye et al.
patent: 5111281 (1992-05-01), Sekiguchi
patent: 5181105 (1993-01-01), Udagawa et al.
patent: 5282021 (1994-01-01), Bachmann et al.
Hieda Teruo
Kawahara Hideo
Ueda Osamu
Canon Kabushiki Kaisha
Greening Wendy R.
LandOfFree
Video signal correction device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video signal correction device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video signal correction device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2312727