| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent troubles due to the lengthening of communication time and increases in variations in communication time in a communication apparatus for communicating with a response device connected via a network. <P>SOLUTION: In a composite machine, communications are performed via the network with a time server which responds to a request for time information and transmits it when receiving the request via the network. To be concrete, time information is obtained by transmitting the request for time information to the time server and receiving a response to the request (S320). Prior to this processing, data are preliminarily transmitted to the time server (S310). Since communication time is characteristically shortened more in an initial communication than in the second communication or later in the case of continuous communications between the composite machine and the time server, the time information is requested at the second communication or later in this form of implementation. Since communication time is therefore shortened to obtain time information, it is possible to obtain accurate time information. <P>COPYRIGHT: (C)2010,JPO&INPIT |
