| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a communication circuit, communication apparatus and communication equipment aggregating device for attaining space saving by aggregating a plurality of pieces of communication equipment within a limited space and for attaining line saving in a communication system so as to achieve communication in accordance with conventional communication protocols without trouble. <P>SOLUTION: Input and output terminals Tx, Rx of CAN controllers 12, 22 of ECUs 1, 2 aggregated by an ECU aggregating device 3 are connected with input and output connecting terminals Txa, Rxa, Txb, Rxb of a communication circuit 13, respectively, and connected to a CAN transceiver 34 via input and output terminals Txc, Rxc of the communication circuit 13. The communication circuit 13 is configured not to output any signals input from the output connecting terminals Txa, Txb, from the transmission terminal Txc, when one of the ECUs 1, 2 transmits a CAN message, in timing to output an ACK signal from the other ECU in response to the CAN message. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
