Patent ID: 6130678
Filing Date: 2000-10-10
Classification: G06T

Abstract:
A display system comprising:a symbol generator;a plotted line smoothing circuit; andan image memory, wherein the symbol generator provides coordinates of successive points of a plotted line of a symbol to be displayed, wherein the smoothing circuit computes coefficients of membership in the plotted line for a group G of N.times.M points surrounding a point with coordinates X, Y after having computed the coefficients of membership in the plotted line for another group G' of N.times.M points surrounding a point with coordinates X', Y' previously given by the symbol generator, the smoothing circuit comprising:writing means for sending, to the image memory, the coefficients of membership in the plotted line solely for non-overlapping points of group G' that do not belong to the group G, said non-overlapping points being determined as a function of a shift vector (X-X', Y-Y') connecting point X', Y' to point X, Y,means to compute new coefficients of membership of points of group G, taking account of coefficients previously computed for points common to the groups G and G', andmeans for preserving, in N.times.M storage cells outside said image memory, for use in a subsequent computation, said new coefficients of membership computed for the points of the group G.