Navigation system for use in vehicle, has control circuit, touch-screen and control unit, where circuit, screen and unit do not specify routes traced on display monitor when circuit and sensor detects that vehicle is in traveling condition

摘要

The system has a control circuit (11) and a vehicle speed sensor (14b) detecting that a vehicle is in a stop condition or in a traveling condition. A display monitor (16) displays a road map. The control circuit, a touch-screen (18) and a touch-screen control unit (19) specify routes traced on the monitor when the circuit and the sensor detect that the vehicle is in the stop condition. The control circuit, touch-screen and control unit do not specify the routes traced on the display monitor when the circuit and the sensor detect that the vehicle is in the traveling condition.