| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a switch device for controlling an automobile lighting device, wiper driving device or the like that can ensure reliable operation free of malfunction due to noise by a simple structure. <P>SOLUTION: The switch device is so designed that controlling means 12 detect opening/closing signals of a plurality of switch contacts of switch means 11 simultaneously, and when only one of the plurality of opening/closing signals is a closing signal and the others are opening signals, output a predetermined driving signal depending on the closing signal. If a strong electric field environment superposes noise on the plurality of opening signals to make more than one closing signal, the controlling means 12 do not output the driving signal, so that the switch device can ensure reliable operation free of malfunction by a simple structure dispensing with noise absorbing capacitors or the like. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
