Patent ID: 7551806

Claim:
A graphic up-scaling apparatus connected to receive source image pixel data describing pixel intensity for pixels arranged in first dimensional ranks and second dimensional ranks, up-scale said source image pixel data to a higher pixel density for the first and second dimensional rank, and to transmit destination graphic pixel data that is the up-scaled source image data to a display, said graphic up-scaling apparatus comprising: a first dimensional rank interpolator circuit connected to receive said source pixel data synchronized at a first clock rate and to interpolate groups of pixels of each first dimensional rank of said source pixel data at a second clock rate; a first dimensional rank interpolated storage device in communication with said first dimensional rank interpolator to receive and retain interpolated source pixel data of each first dimensional rank of the source pixel data at said second clock rate; and a second dimensional rank interpolator circuit in communication with said first dimensional rank interpolated storage device to extract said interpolated source pixel data of each first dimensional rank of the source pixel data at a third clock rate, interpolate groupings of said interpolated source pixel data of each first dimensional rank of the source pixel data at said third clock rate, and transmit said destination graphic pixel data for display.