| 摘要 |
<p>The present invention proposes the use of at least three points of position-related information for a indicating X-Y coordinates. The stylus or pen 2 in Fig. 1 comprising a writing element 6 and one of the three points of position-related information has a light source 16 illuminating a surface. A detector 3 comprising a charge-coupled device (CCD) located on the stylus detects the position-related information. The position-related information from the CCD is sent to a computer for processing and finally the desired information output to the user. During the process of writng, a position-related information is detected and sent to the computer analysis, and finally output to the user. The position of the writing element is determined using the principles of triangulation. Through the use of handwriting recognition software, the output can be converted to a "keyboard-typed" representation of the handwritten text.</p> |
