Patent ID: 7177741

Claim:
A car-mounted device control system for controlling a predetermined car-mounted device which is mounted in a car, comprising: operating means provided integrally with a steering wheel which steers a car by rotation-operation around a predetermined axis, the operating means having an operation surface whose surface is a flat surface or a curved surface, and detecting at least a position of an object to be detected on the operation surface, and outputting at least an operation signal corresponding to the position of the object to be detected on the operation surface; rotation detecting means for detecting rotation of the steering wheel; control means for controlling the car-mounted device on the basis of the operation signal, and nullifying the operation signal on the basis of a rotation detection signal from the rotation detecting means, wherein the rotation detecting means includes rotational speed detecting means for detecting a rotational speed of the steering wheel, and outputting a rotational speed detection signal, which corresponds to the rotational speed, to the control means as the rotation detection signal, and the control means nullifies the operation signal on the basis of the rotational speed detection signal in a case in which the rotational speed is a predetermined magnitude or greater.