| 摘要 |
<p>PURPOSE:To rationalize stock control and stocktaking operation by constituting an electronic-label by a fixed storage element for performing write and erase operations by means of a solar cell operated computer, and a light-emitting element, and constituting an operation unit by a light-emitting source, an operating unit and a light-receiving unit. CONSTITUTION:The number of parts (m) taken out, etc., is inputted and subtraction is commanded by various types of buttons and ten-key switches of the operating unit 30 of a handheld-unit 2. The input signal is light-emitted as a modulated wave from a light-emitting source 21, and inputted to the solar cell of an electronic label 3. By the signal, CPU of the electronic label 3 forms a rewrite signal to rewrite the content of the electronic label 3, and indicate it on a display unit. At the same time, the rewritten results are sent from the light-emiting element of the electronic label 30 to the light-receiving unit 22 of the handheld-unit 2 and indicated on liquid crystal display units 23, 24. By this constitution, stock control and stocktaking operation can be rationalized.</p> |
