Correlate Assist Technique
Original Publication Date: 1985-Mar-01
Included in the Prior Art Database: 2005-Feb-18
Whenever a picture element of a rectangular array of picture elements constituting a cell on a display screen is illuminated, the current display segment name is placed in the corresponding location of a segment name store associated with the display. Then for a subsequent correlate or bit detect operation, the segment name store is accessed to obtain that segment name which was last used in the cell containing the correlate coordinate (X, Y). The named segment is passed to the correlate control program to determine whether any part of it lies within the trap region surrounding the position of interest on the screen. If a bit is detected, then the correlation has been accomplished in a very short time and the efficiency of the operation considerably improved.