Patent ID: 6552751
Filing Date: 2003-04-22
Classification: H04N

Abstract:
A video signal processing circuit comprising:first matrix arithmetic operating means for performing a first matrix arithmetic operation based on a first coefficient group to 3-primary color signals R, G, and B or a luminance signal Y and two color difference signals PR and PB as input video signals and outputting the luminance signal Y and two color difference signals PR and PB or the 3-primary color signals R, G, and B; signal processing means for performing a signal process to an output signal of said first matrix arithmetic operating means and adjusting a picture display form; second matrix arithmetic operating means for performing a second matrix arithmetic operation based on a second coefficient group to signals output from the signal processing means and outputting the 3-primary color signals R, G, and B or the luminance signal Y and two color difference signals PR and PB; and coefficient adjusting means for adjusting values of said first and/or second coefficient groups.