Frame buffer address generator for the multiple format display of multiple format source video.

摘要

A video imaging system having an image memory (26) for storing a plurality of image frames and a video display (10) having a matrix of pixels. Apparatus generates addresses for accessing pixels stored in the image memory to be displayed on the video display. The address generating apparatus includes a programmable mapping memory (20) for storing a pixel descriptor of each pixel to be displayed on the video display (10), each pixel descriptor including a pixel group identification field which identifies a group of pixels on the video display (10), and an address field which includes address information of the image memory (26) of pixels to be displayed. An address manager (22) and a control (18) causes each pixel descriptor read out of the mapping memory (20) to be processed according to its pixel group to effect multiple format display of multiple format source video. <IMAGE>