| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a structure whereby loop connection is attained in communication adopting port synchronization like the IEEE1394b and accurate data transfer is realized to prevent circulation of the same data. <P>SOLUTION: A sender side communication apparatus (100-1) as one of a plurality of communication apparatuses (100-i, i=1 to n) connected to a network of the port synchronization adopting the loop structure attaches identification information to an arbitration signal, and transmission data addressed to a target apparatus (100-3) as one of the communication apparatuses. The communication apparatus (100-1) discriminates the identification information attached to the received arbitration signal and transmission data. When the transmission data with the identification information of the communication apparatus (100-1) comes along, the communication apparatus (100-1) does not transfer the transmission data to the other apparatus (100-2) but aborts the transmission data. When the identification information attached to the arbitration signal received by the communication apparatus (100-1) is not the identification information addressed to the communication apparatus (100-1), the communication apparatus (100-1) transfers the arbitration signal to the other apparatus (100-2). When the identification information is the identification information addressed to the communication apparatus (100-1), the communication apparatus (100-1) receives the arbitration signal. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
