| 摘要 |
PURPOSE: A car network system is provided to use TCP/IP in a driver information system which controls and inputs/outputs car and driver information such as car driving information, management, and multimedia. CONSTITUTION: When a user pushes a button of a CD player(27) in order to listen a CD, it requests a DIS monitor(21) to be displayed through a DVD player(26) and an AM/FM tuner(25). The DIS monitor(21) sends a message to the CD player(27) through the AM/FM tuner(25) and the DVD player(26). When the message is not data which is related to the AM/FM tuner(25) and the DVD player(26), the AM/FM tuner(25) and the DVD player(26) passes the message. The CD player(27) operates to send sound data to the DIS monitor(21) so that the sound data is displayed on the DIS monitor(21). The DIS monitor(21) transmits a request message to the CD player(27).
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