Patent ID: 7030936
Filing Date: 2006-04-18
Classification: H04N

Abstract:
1. A pedestal level control circuit comprising: video data signal output means for outputting a digital video data signal; pedestal level adjustment data signal output means for outputting a pedestal level adjustment data signal used to generate an analog video signal having a predetermined pedestal level; and video signal generating means for generating the analog video signal having the predetermined pedestal level based on the video data signal and the pedestal level adjustment data signal, wherein a plurality of sets, each set including the video data signal output means, the pedestal level adjustment data signal output means and the video signal generating means, are provided, wherein three sets, each set including the video data signal output means, the pedestal level adjustment data signal output means and the video signal generating means, are provided, the three sets corresponding to video images of red, green and blue, respectively, and wherein the pedestal level adjustment data signal is a brightness and cutoff adjustment data signal for performing brightness adjustment commonly to the video images of the three colors and performing cutoff adjustment for video images independently for each color.