| 摘要 |
<p>PURPOSE:To make the information recording image reader cordless and to improve the function by providing the cordless information recording image reader at the information processor such as a pen input computer. CONSTITUTION:Light emitting devices 1, 2 and 3 to irradiate an information recording image 5 with laser light 6 and a light receiving device 8 to receive reflected light from the information recording image are provided at a main body device 7, and the light emitting devices are produced as a single cordless equipment separated from the main body device 7. As a device to use a normal light source as the light source, the other light receiving device and a modulator are added inside the light emitting device 1, light modulating the frequency is outputted from the light source based on the light which amplitude is modulated by the information recording image, and the light receiving device 8 receives the frequency modulated light, demodulates it by a demodulator and extracts the image information later. The information processor is provided with a coordinate input device composed of a coordinate instructing device and a coordinate detector, further, the coordinate instructing device is provided with the light emitting device of the cordless information recording image reader, and the coordinate detector is provided with the light receiving device or the like.</p> |
