Television – Camera – system and detail – Combined image signal generator and general image signal...
Patent
1994-12-21
1996-04-16
Groody, James J.
Television
Camera, system and detail
Combined image signal generator and general image signal...
348225, 348226, H04N 973
Patent
active
055087396
ABSTRACT:
An improved white-balance adjusting apparatus and a method thereof for a video camera capable of automatically varying a white-balance trace region in accordance with a change in color temperatures of a light source and of performing an automatic white-balance adjusting operation. The apparatus includes a dividing circuit for integrating a first primary color signal for a predetermined time and for computing an integration value ratio of a second primary color signal in response to the integration value ratio of the first primary color signal; a color temperature detection circuit for detecting a color temperature change of a light source from the integration value ratio; and a gain computation circuit, when an integration value ratio is within a range of at least one white-balance trace region, for selecting a white-balance trace region in accordance with a detected color temperature change and for computing a gain of a primary color in accordance with the integration value ratio in a range of a selected white-balance trace region.
REFERENCES:
patent: 5038205 (1991-08-01), Kondo
patent: 5146316 (1992-09-01), Suzuki
patent: 5198890 (1993-03-01), Suga
Goldstar Co. Ltd.
Groody James J.
Hsia Sherrie
LandOfFree
White-balance adjusting apparatus and a method thereof for a vid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with White-balance adjusting apparatus and a method thereof for a vid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and White-balance adjusting apparatus and a method thereof for a vid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-328643