| 摘要 |
PROBLEM TO BE SOLVED: To improve operability and visibility in a portable machine.SOLUTION: When a lighting request signal from an in-vehicle machine 20 is received, an electronic key 10 lights backlights 14a and 14b thereof to illuminate both switches 16 and 17. Thus positions of both switches 16 and 17 in the electronic key 10 are easily recognized, and both switches 16 and 17 are easily operated especially at night. Thus, operability of the electronic key 10 is improved. |
