| 摘要 |
PURPOSE:To secure the proper operation of an input-output unit for electronic equipment mounted on a car, by setting a sun visor down to such a type one that installs the input-output unit for the said electronic equipment being mounted on the car. CONSTITUTION:A sun visor 1 is built in with a switch 21 interlocking on-off operations for the sun visor, a displayer for letters and figures, a speaker 24, and a keyboard 15. When the sun visor 1 is brought down, the switch 21 is closed, making a power source into a circuit, and a personal radio body 4 comes into a state of being usable. A driver performs selection of working frequency and volume control for a microphone 23 and a speaker 24 with a keyboard 25 and radiotelephones with the microphone 23 and the speaker 24. At this time, the displayer 22 displays seelctive frequency by the keyboard 25. After radiotelephoning is over, when the sun visor 1 is turned back, the switch 21 is opened, stopping the operation. |
