| 摘要 |
<p>PURPOSE:To make it possible to fulfill a plurality of functions and purposed by one card, by forming key codes, a solar cell and a display window on the card. CONSTITUTION:For instance, key codes 7 are formed on the opposite sides, the side A of a card 1 and the side B thereof. When a key of a key code 7A is operated, a memory is made to operate through a terminal 3 and thereby the card is made to function as the one for a company A. In addition, the current display items of the company A (e.g., The balance of the company A) etc., are displayed in a display window 9. When a key of a key code 7B is operated, the card is made to function as the one for a company B. Besides, the card may be designed so that the key codes 7, a solar cell 5 and the terminal 3 are formed on the side A or B of the card 1 and further that a signature section 10 and a name section 11 are formed on the card 1. By this constitution, the card can be operated for a plurality of functions and purposes.</p> |
