Image based keyboard for a small computing device
    3.
    发明授权
    Image based keyboard for a small computing device 失效
    基于图像的小型计算设备键盘

    公开(公告)号:US6104384A

    公开(公告)日:2000-08-15

    申请号:US928801

    申请日:1997-09-12

    IPC分类号: G06F3/033 G06F3/048 G09G5/00

    CPC分类号: G06F3/04886

    摘要: A virtual keyboard displayed on a computer display is used to emulate a conventional keyboard. The coordinate position of the keys on the virtual keyboard are stored as an array in the computer's memory. The key coordinates are ordered in the array based on their frequency of occurrence. A pointing device is used to select keys on the virtual keyboard. The input points generated by the pointing device are compared to the key coordinates stored in the key coordinate array one at a time. A predetermined bounding criteria is applied to determine whether the input point matches that key. If so, then the key is assigned to the input point and the search is discontinued. The search for a matching key continues until a match is found or until the end of the array is reached.

    摘要翻译: 显示在计算机显示器上的虚拟键盘用于仿真常规键盘。 虚拟键盘上的键的坐标位置作为阵列存储在计算机的存储器中。 关键坐标根据其发生频率在阵列中排序。 指点设备用于选择虚拟键盘上的键。 将指示装置产生的输入点与存储在键坐标数组中的键坐标一次一个进行比较。 应用预定的界限标准来确定输入点是否匹配该键。 如果是,则键被分配给输入点,并且搜索被中止。 搜索匹配键继续,直到找到匹配或直到到达阵列的末尾。