| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a common data distribution system optimum to even an environment wherein a reception node cannot be specified by eliminating problems in the conventional simultaneous broadcast communication system. <P>SOLUTION: Each of terminals calculates a response delay time unique to each own terminal on the opportunity of reception of the data distribution start notice. When one terminal intercepts a data distribution request in response to the data distribution start notice from the other terminals, the terminal stops the transmission of its own data distribution request, and when the one terminal does not intercept the data distribution request transmitted from the other terminals until before the response delay time elapses, the one terminal transmits its own response. Further, when the one terminal receives data distribution on the basis of its own response, the one terminal receives distributed data as a representative terminal, and when the one terminal receives no distributed addressed to the one own terminal or intercepts a response with respect to the data distribution start notice from the other terminals, the one terminal intercepts data distribution as an intercept terminal. When the data distribution to the representative terminal gets stacked up, the intercept terminal transmits the data distribution request and shifts to the representative terminal. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
