ON-VEHICLE INFORMATION RECEIVING SYSTEM AND ITS CAR AUDIO DEVICE, AND PORTABLE DEVICE

摘要

PROBLEM TO BE SOLVED: To improve ease-of-use of a car audio device on board an automobile since auto-tuning of a radio is the only one to ease the use by the users. SOLUTION: A user stors control data in a portable device in advance. The user carry the portable device containing the control data into a car, and directs the portable device to communicate with the car audio device and to send the control data to the car audio device. This allows the car audio device to perform programmable control on the basis of the control data and to become ease to use.