| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a compact interface with comfortable spatial recognition function that does not need actual screen touch unlike existing touch panels, uses an existing space such as buttons and screens as a recognition area, and requires only light sources and light receiving points. <P>SOLUTION: Light of a predetermined frequency is emitted from two or more separate points. The light is received by light receivers at one or more points. An image can be easily separated from the background to recognize a three-dimensional object. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
