A video and graphics system has a reduced memory mode in which video images are reduced in half in horizontal direction during decoding. The video and graphics system includes a video decoder for decoding MPEG-2 video data. The video images may not be downscaled in the horizontal direction when no bi-directionally...http://www.google.co.uk/patents/US6768774?utm_source=gb-gplus-sharePatent US6768774 - Video and graphics system with video scaling
