| 摘要 |
<P>PROBLEM TO BE SOLVED: To use a light for the signal transmission of a movable part in this electronic equipment. <P>SOLUTION: Both movable parts are respectively provided with a light emitting element and a light receiving element for data transmission, and when it is detected that any light is not received by the light receiving element, circuit control is executed according to the detection information. <P>COPYRIGHT: (C)2003,JPO |
