Patent ID: 6989835

Claim:
A graphics system comprising: a plurality of video routers connected in series, wherein each video router receives a plurality of input video pixel streams from a previous router in the series, receives an input local video pixel stream unique to each video router, and outputs a plurality of conditionally integrated video pixel streams to a next router in the series, and wherein an adjacent pair of video routers comprises: a first video router comprising a first local video buffer, a first pixel source unit, and a first pixel integration unit, and a second video router coupled directly to the first video router, comprising a second local video buffer, a second pixel source unit, and a second pixel integration unit; wherein the first local video buffer is configured to receive and store first local pixels computed for a first column of a display area, and wherein the second local video buffer is configured to receive and store second local pixels computed for a second column of the display area; wherein the first pixel integration unit is configured to receive a first stream of dummy pixels from the first pixel source unit, to conditionally select pixels from either the first local pixels or the first stream of dummy pixels, thereby generating a second stream of second pixels, and to transmit the second stream to the second video router; and wherein the second pixel integration unit is configured to receive the second stream of second pixels, to conditionally select pixels from either the second local pixels or the second stream of second pixels, thereby generating a third stream of third pixels, and to transmit the third stream of third pixels.