WINDOW COMBINING DEVICE

WIPO Patent Application WO/2012/168984

A1

A window combining device equipped with: a window control unit (7) that adds one window number to pixels on a window-by-window basis; a two-dimensional drawing engine (4) that combines into a display window the drawing-completed windows that contain pixels for which a window number has been added by the window control unit (7); and a display control unit (9) that displays the display window produced by the two-dimensional drawing engine (4). When one of the multiple drawing-completed windows forming the display window is updated, the two-dimensional drawing engine (4) calculates the original background color from a pixel - of the pixels of the window that has been updated - to which a blend flag has been added indicating that this pixel is the subject of an anti-aliasing process, and then the two-dimensional drawing engine performs the anti-aliasing process and recombines this window with the display window.

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KASUGA TAKAFUMI (JP)
KASE TAKAAKI (JP)
KATO YOSHIYUKI (JP)
KATO KIYOTAKA (JP)
TORII AKIRA (JP)
HAMADA MASAKI (JP)
YONEZAWA EISUKE (JP)

PCT/JP2011/003313

December 13, 2012

June 10, 2011

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MITSUBISHI ELECTRIC CORP (JP)
KASUGA TAKAFUMI (JP)
KASE TAKAAKI (JP)
KATO YOSHIYUKI (JP)
KATO KIYOTAKA (JP)
TORII AKIRA (JP)
HAMADA MASAKI (JP)
YONEZAWA EISUKE (JP)

G09G5/14; G06T11/00; G09G5/39

JPH05225328A	1993-09-03
JPH0991444A	1997-04-04
JPH07105388A	1995-04-21
JPH04222022A	1992-08-12

TAZAWA, Hideaki et al. (JP)
Hideaki Tazawa (JP)

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