Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2004-11-05
2008-11-18
Lewis, David L (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S061000, C345S690000, C315S169400
Reexamination Certificate
active
07453422
ABSTRACT:
A PDP image processing method for dividing an image of a field displayed on the PDP into subfields in correspondence to an input image signal, representing gray scales according to combinations of the subfields, and displaying an image corresponding to the image signal. Image signals of a current input frame and a previous input frame are used. A contour noise stage is determined through calculating coding errors and mean gray scale differences. The applicability of the current input image signal to the contour noise stage is determined. Whether to apply dithering is determined. The gray scale of the current input image signal is converted into a gray scale for reducing the contour noise by using dithering, when it is determined to apply dithering.
REFERENCES:
patent: 6310588 (2001-10-01), Kawahara et al.
patent: 6417824 (2002-07-01), Tokunaga et al.
patent: 6965358 (2005-11-01), Kasahara et al.
patent: 7236147 (2007-06-01), Morita et al.
patent: 7339632 (2008-03-01), Weitbruch et al.
patent: 2006/0145952 (2006-07-01), Takahashi
patent: 1288221 (2001-03-01), None
patent: 1 071 069 (2001-01-01), None
patent: 11-231827 (1999-08-01), None
patent: 2000-188702 (2000-07-01), None
patent: 2000-276100 (2000-10-01), None
patent: 2001-337648 (2001-12-01), None
patent: 2002-82649 (2002-03-01), None
patent: 2002-229510 (2003-01-01), None
patent: 2003-15589 (2003-01-01), None
patent: 2003-66896 (2003-03-01), None
patent: 2003-177696 (2003-06-01), None
patent: 1999-014172 (1999-02-01), None
patent: 2002-0024669 (2002-04-01), None
patent: 2003-0006074 (2003-01-01), None
Korean Patent Abstracts for Publication No. 1020020024669; Date of publication of application Apr. 1, 2002, in the name of Choon Woo Kim et al.
Korean Patent Abstracts for Publication No. 1020030006074; Date of publication of application Jan. 23, 2003, in the name of Choon Woo Kim et al.
Christie Parker & Hale LLP
Lewis David L
Samsung SDI & Co., Ltd.
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