Multiple scaled videos are created using a single video decoder. A plurality of digital video data streams may be displayed in scaled or full-size on a video display. A viewer may select one or more of the scaled videos for display using a remote control. Downsampled frames may be scrolled into view...http://www.google.com.au/patents/US6317164?utm_source=gb-gplus-sharePatent US6317164 - System for creating multiple scaled videos from encoded video sources
