Patent ID: 7050065

Claim:
A graphics processing unit, comprising: a memory for storing pixel data in binary form, wherein the pixel data are in a red, green and blue (RGB) color space; and a display pipeline having an RGB color space to a luminance color, blue color difference and red color difference (YCbCr) color space converter module configured to convert the pixel data from the RGB color space to the YCbCr color space, wherein the RGB to YCbCr color space converter module generates a luminance color component (Y) of the pixel data by adding ¼ of a red color (R) component of the pixel data to ½ of a green color (G) component of the pixel data and ¼ of a blue color (B) component of the pixel data, wherein the RGB to YCbCr color space converter module determines the luminance color component (Y) of the pixel data by: left shifting the green color (G) component of the pixel data by one bit; adding the result of the left shifting to the red color (R) component of the pixel data and the blue color (B) component of the pixel data; and right shifting the sum by two bits.