专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明授权

US07199791B2 Pen mouse 有权
标题翻译：笔鼠标
公开(公告)号：US07199791B2
公开(公告)日：2007-04-03
申请号：US10692879
申请日：2003-10-23
申请人： Cheah Chiang Sun
发明人： Cheah Chiang Sun
IPC分类号： G09G5/00 , G09G5/08
CPC分类号： G06F3/03545 , G06F3/0317
摘要： A pointing device having an elongated body with a transparent end adapted for movement over a surface is disclosed. An illumination subsystem illuminates the surface in an area adjacent to the transparent end, and an imaging subsystem forms images of a portion of the surface in that area. The present invention also includes a reference mark system that defines a direction that is independent of rotations of the elongated body. A controller periodically compares two of the images to determine the distance and direction that the transparent end moved between the two images. The controller utilizes the direction defined in the reference mark system to reduce the computational workload. In one embodiment, the reference mark system includes a disk that is free to rotate about an axis through the disk and a sensor, and the position of a reference mark that is displaced from the axis is measured.
摘要翻译：公开了一种具有细长主体的指示装置，其具有适于在表面上移动的透明端。照明子系统照亮与透明端相邻的区域中的表面，并且成像子系统在该区域中形成一部分表面的图像。本发明还包括一个参考标记系统，其定义独立于细长主体旋转的方向。控制器周期性地比较两个图像以确定透明端在两个图像之间移动的距离和方向。控制器利用参考标记系统中定义的方向来减少计算工作量。在一个实施例中，参考标记系统包括可绕轴通过盘自由旋转的盘和传感器，并且测量从该轴移位的参考标记的位置。

IPRDB

热门服务

关于我们

友情链接

联系方式