Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-05-17
2005-05-17
Liang, Regina (Department: 2674)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S690000, C345S089000
Reexamination Certificate
active
06894664
ABSTRACT:
A method and apparatus for processing video pictures for dynamic false contour effect compensation is provided wherein the video picture consists of pixels having at least one color component (RGB) the color component values being digitally coded with a digital code word, hereinafter called sub-field code word (SF-R, SF-G, F-B). To each bit of a sub-field code word (SF-R, SF-G, SF-B) a certain duration is assigned hereinafter called a sub-field, during which a color component of the pixel can be activated for light generation. The digital code words have n bits, characterized in that among a set p possible video levels for the at least one color component (RGB) a sub-set of m video levels with n<m<p is selected, which is used for light generation. The m values are selected according to the rule that the temporal center of gravity (CG1,CG2,CG3) for the light generation of the corresponding sub-field code words grow continuously with the video level, apart from possible exceptions in the low video level range up to a first predefined limit and/or in the high video level range from a second predefined limit on.
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Correa Carlos
Thebault Cédric
Weitbruch Sébastien
Fried Harvey D.
Henig Sammy S.
Liang Regina
Nguyen Jennifer T.
Thomson Licensing S.A.
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