| 摘要 |
PROBLEM TO BE SOLVED: To provide a handy ten-key which eliminates misinput and shortens the input time. SOLUTION: The handy ten-key 2 is constituted attachably to and detachably from a digital tachograph main body 3 which gathers and records travel data of a vehicle on an IC card 36 and has a keyboard 21 and a display part 24. When it is connected to the digital tachograph main body, a control part 26 reads key input data (download data), which should be inputted from the keyboard, out of the IC card and displays them at the display part, and also writes key input data, displayed at the display part, to the IC card according to an operation signal from a determination key. |
