Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2007-05-29
2007-05-29
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S036000, C345S076000, C345S207000
Reexamination Certificate
active
10483615
ABSTRACT:
The invention relates to a method and a device for noise reduction in a pulse-width controlled image display device. A monitoring of whether the brightness of several sequential image points is brighter than a given brightness threshold value occurs. If not the case, the delayed but otherwise unchanged input signal is supplied to the display. If, on the other hand, the brightness of several sequential image points is less than the given threshold brightness value, a mean value generation for the brightness values of several sequential image points occurs and said mean value is supplied to the display.
REFERENCES:
patent: 4573075 (1986-02-01), Bolger
patent: 4682230 (1987-07-01), Perlman et al.
patent: 6091389 (2000-07-01), Maeda et al.
patent: 7006708 (2006-02-01), Nako et al.
patent: 0 629 083 (1994-12-01), None
patent: 0 720 139 (1996-07-01), None
patent: 10-091120 (1998-04-01), None
patent: 10-091120 (1998-10-01), None
IBM Technical Disclosure Bulletin, Temporal-Based Dithering for Reducing Perceived Quantization Error In Video Displays, vol. 38 No. 09. Sep. 1995, pp. 61-63.
Fischbeck Udo
Spindler Johannes
Grundig Multimedia B.V.
Quarles & Brady LLP
Shapiro Leonid
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