Patent ID: 7825988

Claim:
A vehicle-mounted device capable of executing a predetermined function as a foreground process and a TV function as a background process, comprising: a displaying device, an image corresponding to the predetermined function being displayed on the displaying device when the predetermined function is executed; a program switching system that is operated by a user to switch TV programs one by one; an output of sound, corresponding to the selected TV program; a small image generating system that generates a small image which is smaller than the image corresponding to the predetermined function when the program switching system is operated to switch the TV programs, the small image being superimposed on the image corresponding to the predetermined function; said small image generated by said small image generating system representing an image of a TV program that has been switched by the program switching system; and a display control system that displays the small image on the displaying devices such that the small image is superimposed on the image corresponding to the predetermined function for a predetermined amount of time, the display control system extinguishing the small image at a predetermined timing, and an output of sound, corresponding to the TV program switched by the program switching system at the time of operation by the user, remains as the output of sound after the small image is extinguished.