Patent Number: 7,612,687

Title: On-board unit

Abstract: An on-board unit includes a dust sensor for detecting an amount of dust in an air in a vehicle. When the amount of dust is equal to or greater than a predetermined value and a front panel of the unit is open, the front panel is moved to close a media slot and insertion/ejection operation of a medium is prohibited as a preventive measure for dust intrusion.

Inventors: Nakamura; Satoshi (Kariya, JP)


International Classification: G08G 1/09 (20060101)

Expiration Date: 1/03/02017