A PAL color encoder and video summer which requires just composite sync and composite blanking inputs, and a 6-bit binary coded input giving the color information. The inputs are organized as 2 bits per primary color with gamma correction automatically applied to the resultant luminance and chrominance levels.
Each of the equally spaced intensity levels for each primary color is combined with those of the other primary colors. This produces 64 output colors comprising a wide range of saturated and desaturated colors, black, white and two levels of grey. The out