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color television receiver with a digital processing system sviluppante pilot signals to a digital tube for image reproduction
color television receiver with a digital processing system sviluppante pilot signals to a digital tube for image reproduction
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机译:带有数字处理系统的彩色电视接收机,将引导信号发送到数字显像管以进行图像再现
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摘要
In a color television receiver with a digital signal processing system, a chroma processor operates on digital samples containing color picture information to develop first and second binary coded digital signals containing two color mixture signal information such as I color mixture information and Q color mixture information. A luminance processor operates on the digital samples to develop a third digital signal containing Y or luminance information. R, G and B digital signals are related to the developed I, Q and Y digital signals by a set of coefficient multipliers. To obtain the R, G and B digital signals, the I, Q and Y digital signals are applied to a digital decoder that includes a ROM look-up table multiplier for multiplying each of the I, Q and Y signals by the appropriate coefficient multiplier. The products thus generated are summed in an adder to obtain each of the R, G and B signals. A digital-to-analog converter develops analog R, G and B voltages for driving the cathode electrodes of the television receiver color picture tube.
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