Patent ID: 6307498
Filing Date: 2001-10-23
Classification: G09G

Abstract:
A method of displaying a plurality of image frames on a display screen of a digital display unit, wherein said plurality of image frames are encoded in an analog display signal, wherein said analog display signal includes an analog display data and corresponding synchronization signals, wherein each of a plurality of portions of said analog display data encodes a pixel data element value included in a plurality of pixel data element values, said plurality of pixel data element values defining a corresponding image frame, said method comprising the steps of:(a) receiving said analog display signal in said digital display unit;(b) generating an intermediate clock signal synchronized with said synchronization signals;(c) sampling said analog display data using a sampling clock signal to generate a plurality of sampled data values;(d) displaying images on said display screen based on said sampled data values generated in step (c);(e) generating said sampling clock signal by modulating said intermediate clock signal by a different phase delay amount for successive image frames,wherein the modulation by a different phase delay amount in step (e) causes said analog display data to be sampled at different sampling points for the same pixel position in said successive image frames.