Automotive compact disc changer system using serial bus

摘要

The present invention relates to a CD changer system, which is located in a driver's seat of a vehicle, processes a signal according to a user's switch operation, indicates a current changer state, and directly receives a digital audio signal reproduced from a compact disc as an analog signal. It is located in a separate space such as a control unit for converting and outputting to a speaker and a trunk of a vehicle, and plays a compact disc by driving a motor and a pickup head of a corresponding compact disc by decoding commands of the control unit transmitted through a serial bus. And a changer section for outputting a digital signal. Therefore, since CD information read in digital form is directly transmitted to the amplifier, almost perfect CD original sound can be heard except for distortion of the vehicle amplifier.