| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a data communication system for avoiding occurrence of data collision in a communication medium and improving transmission efficiency, and to provide data communication equipment and a total device. <P>SOLUTION: The total device 10 is fundamentally provided with a problem setting device 12, and a plurality of answer data transmission devices 16(1) to 16(n) which are connected to the problem setting device 12 by radio 14 are given to a plurality of subscribers and transmit answer data which are selected by the operation of the subscriber to the problem setting device 12. The answer data transmission devices 16(1) to 16(n) generate transmission timing signals having different delay time by making time when data transmission valid commands validating transmission of answer data to the problem setting device 12 are simultaneously received from the problem setting device 12 by radio 14 as a reference, and transmit self-answer data to the problem setting device 12 by radio 14 in synchronism with the self-transmission timing signal. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
