UPDATE WITH LOW LATENCY OF GRAPHIC OBJECTS IN A PRESENTATION FOR AIR TRAFFIC CONTROL.

摘要

A VIDEO SCREEN SYSTEM INCLUDING A VIDEO SCREEN (11) TO DISPLAY A TRACKING IMAGE COMPOSED OF A SET OF PIXELS DISTRIBUTED IN LINES AND COLUMNS, A VIDEO MEMORY (13) TO STORE THE PICTURE PICTURE DATA FOR TRACKING PICTURE IMAGE, AND A BIT MAP MEMORY (17), AND A PROCESSOR (15) FOR DIGGING IN UPDATED PIXEL MAP PICTURE MEMORY DATA UPDATED FOR A RECTANGULAR REGION OF PIXELS OF THE PICTURE OF TRACKING THAT IS LESS THAN THE TOTALITY OF THE TRACKING IMAGE, AND TO COPY THE UPDATED PIXEL TRACKING IMAGE TO THE VIDEO MEMORY IN LOCATIONS THAT STORE THE TRACKING IMAGE DATA FOR THE RECTANGULAR REGION OF PIXELS.