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    • 1. 发明授权
    • Electronic whiteboard
    • 电子白板
    • US07450109B2
    • 2008-11-11
    • US10889783
    • 2004-07-13
    • Michael Austin HalcrowKylene Jo HallDustin C. KirklandHerman Rodriguez
    • Michael Austin HalcrowKylene Jo HallDustin C. KirklandHerman Rodriguez
    • G06F3/041
    • G06F17/246G06F3/0421G06K9/2081
    • An improved electronic whiteboard is provided. The improved electronic whiteboard includes a plurality of toggle switches along a vertical side for drawing vertical straight lines across the electronic whiteboard and a plurality of toggle switches along a horizontal side for drawing horizontal straight lines across the electronic whiteboard. When some or all the switches along the vertical side are turned on, vertical straight lines are drawn across the electronic whiteboard. Likewise, when some or all the switches along the horizontal side are turned on, horizontal straight lines are drawn across the electronic whiteboard. The intersections of the vertical straight lines with the horizontal straight lines form a plurality of grid cells. The electronic whiteboard contains means for determining the location of these cells.
    • 提供了改进的电子白板。 改进的电子白板包括沿着垂直侧的多个拨动开关,用于横跨电子白板绘制垂直的直线,以及沿着水平侧的多个拨动开关,用于在电子白板上绘制水平的直线。 当沿着垂直方向的一些或所有开关被打开时,垂直的直线被画在电子白板上。 同样地,当沿着水平侧的一些或全部开关被打开时,水平的直线被画在电子白板上。 垂直直线与水平直线的交点形成多个网格单元。 电子白板包含用于确定这些单元的位置的装置。