White balance control device for use in both an outdoor and indo

Details White balance control device for use in both an outdoor and indo White balance control device for use in both an outdoor and indo

1995-05-23

1996-10-15

Kostak, Victor R.

Television

Camera, system and detail

Combined image signal generator and general image signal...

348223, H04N 973

Patent

active

055659136

ABSTRACT:
A white balance control device is provided for use in a video camera or a still video camera in which white balance control signals are controlled so that an object may be photographed without the occurrence of color failure. A microcomputer of the white balance control device detects a difference between integral averaged values for two color difference signals R-Y and B-Y and a reference value. Depending on the difference, values of the white balance control signals Rcont and Bcont may be changed when the brightness of an object is changed by more than a predetermined amount. In an indoor mode, the values of the white balance control signals Rcont and Bcont are positioned within a region corresponding to various artificial light sources. In an outdoor mode, the values of the white balance control signals are positioned within a region corresponding to natural light.

REFERENCES:
patent: 5040054 (1991-08-01), Schmidt et al.
patent: 5099316 (1992-03-01), Ogawa
patent: 5146316 (1992-09-01), Suzuki
patent: 5177599 (1993-01-01), Takagi et al.
patent: 5223921 (1993-06-01), Haruki et al.
patent: 5260774 (1993-11-01), Takayama
patent: 5264921 (1993-11-01), Jinnai
patent: 5267026 (1993-11-01), Kawahara et al.
patent: 5270802 (1993-12-01), Takagi et al.
patent: 5272521 (1993-12-01), Tatsumi
patent: 5274440 (1993-12-01), Miyazaki
patent: 5282022 (1994-01-01), Haruki et al.
patent: 5298979 (1994-03-01), Kim
patent: 5313277 (1994-05-01), Suzuki
patent: 5319449 (1994-06-01), Saito et al.

Affiliated with

Also associated with

Rating

White balance control device for use in both an outdoor and indo 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 control device for use in both an outdoor and indo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and White balance control device for use in both an outdoor and indo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1250449