ELECTRONIC DEVICE AND METHOD FOR DRAWING PICTURES
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United States of America Patent
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Issued Date -
Jan 15, 2015
app pub date -
Jul 9, 2014
filing date -
Jul 10, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a drawing method executed in an electronic device, the electronic device includes a touch screen, a touch controller, a decoder, a main processor, a frame buffer, and a display controller. The main processor initializes a line width, a line color, and a drawing region of the touch screen. The touch controller senses touch points on the touch screen, and generates coordinates of the touch points. The decoder receives the coordinates of the touch points from the touch controller, and updates the frame buffer according to the line width, the line color, the drawing region, and the coordinates of the touch points. The display controller updates a display of the touch screen according to contents in the frame buffer to display a picture.
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