Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2011-07-19
2011-07-19
Eisen, Alexander (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S698000
Reexamination Certificate
active
07982757
ABSTRACT:
In KVM systems for comparing new video frames to reference frames to update video, a method of reducing the effects of noise comprising (i) determining the differences between the sets of pixel values for new and reference pixels to produce a difference set of difference elements for each pixel; (ii) weighting the absolute value of each difference element within the difference set (iii) summing the weighted difference elements over all of the pixels of the horizontal line of the sub-block to produce a weighted difference element sum; (iv) determining whether the weighted difference element sum exceeds a predetermined sum threshold; (v) if yes, determining that the sub-block has changed so as to require updating.
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Digital Multitools Inc.
Eisen Alexander
Lam Nelson
The Webb Law Firm
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