发明申请
- 专利标题: Electronic whiteboard
- 专利标题(中): 电子白板
-
申请号: US10889783申请日: 2004-07-13
-
公开(公告)号: US20060012561A1公开(公告)日: 2006-01-19
- 发明人: Michael Halcrow , Kylene Hall , Dustin Kirkland , Herman Rodriguez
- 申请人: Michael Halcrow , Kylene Hall , Dustin Kirkland , Herman Rodriguez
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 主分类号: G09G5/00
- IPC分类号: G09G5/00
摘要:
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.
公开/授权文献
- US07450109B2 Electronic whiteboard 公开/授权日:2008-11-11
信息查询