| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a virtual input device with excellent portability and operability. SOLUTION: This virtual input device draws an image on a screen 2 with a projection part 3 and an operation key in the virtual input device is selected by touching an indicating means 5 such as an indicating rod or a finger. This selection is determined by a CPU 1 from the image data of a recognition camera 4 focusing on the screen 2 whether the indicating means 5 or the finger is focused or not, and thus the selected operation key is identified.</p> |
