| 摘要 |
PURPOSE: An operation button for vehicles is provided to enable efficient formation of software by the formation of the key of a column having the same AD value. CONSTITUTION: A button unit(100) comprises one or more keys(SW1-SW6) which can be manipulated by a user. A switching unit(200) comprises transistors(TR1-TR6) corresponding to each key of the button unit and resistors(R1-R6) corresponding to each transistor. A switching controller(300) turns off the transistor corresponding to the key recognized among pressed keys. A MICOM(400) is inputted with values determined by the transistor which is not turned off, thereby recognizing the pressed state of the special key. |
