Patent ID: 8717391

Claim:
A user interface unit comprising: a fetch unit configured to fetch, from memory, a frame to be displayed, wherein the frame comprises active pixels and inactive pixels, wherein to fetch the frame, the fetch unit is configured to fetch the active pixels of the frame from memory and not fetch the inactive pixels of the frame from memory, wherein the active pixels are within one or more active regions of the frame, and the inactive pixels are outside of the one or more active regions of the frame, wherein the active pixels of the frame are to be displayed and the inactive pixels of the frame are not to be displayed; and a scaler unit configured to: produce scaled pixels for the fetched pixels, basing each scaled pixel on a respective corresponding set of pixels in the frame; wherein to produce the scaled pixels when a first pixel in the respective corresponding set of pixels in the frame is an inactive pixel, the scaler unit is configured to generate an estimated pixel value corresponding to the first pixel based on one or more fetched active pixels of the respective corresponding set of pixels in the frame, wherein the estimated pixel value is included in the corresponding set of pixels in place of the first pixel; and output the scaled pixels for display.