Patent ID: 6028571
Filing Date: 2000-02-22
Classification: G09G

Abstract:
A method of displaying a plurality of images on a digital display unit of a computer system, wherein said plurality of images are encoded in an analog display signal using one of a plurality of source modes, wherein each of said plurality of source modes are characterized by a plurality of display signal parameters, said method comprising the steps of:(a) storing a plurality of display signal parameter values for each of said plurality of source modes, wherein said plurality of display signal parameter values correspond to said plurality of display signal parameters;(b) storing a tolerance level associated with each of said display signal parameters;(c) receiving said analog display signal in said digital display unit;(d) measuring one or more of said display signal parameters of said received analog display signal to generate a plurality of measured display signal parameter values;(e) comparing each of said plurality of measured display signal parameter values generated in step (d) with a corresponding one of said display signal parameter values stored in step (a) to generate a corresponding difference value;(f) determining whether each of said difference values computed in step (e) for each display signal parameter is less than said associated tolerance level;(g) determining whether there is a matching source mode, wherein a source mode is determined to be matching if said difference for some or all of said plurality of display signal parameters is determined to be within said associated tolerance level in step (f); and(h) varying said tolerance levels and performing steps (e), (f) and (g) if a single source mode is not determined to be matched or if more than a single source mode is determined to be matched until a single source mode is determined to be matched; and(i) processing said analog display signal using said determined single source mode to display said plurality of images encoded in said analog display signal.