| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a duplexing apparatus which conducts time management of a control object of a communication system with a timer by constitution of an operation system and of a non-operation system, and avoids lapse time measurement of a time information of the timer becoming inaccurate due to timer stop time coming from the system switching of the duplexing apparatus, an error in timer value being produced, high accuracy succeeding among systems being unable to be achieved, and fluctuations in timer synchronism being generated. <P>SOLUTION: The operation system and the non-operation system are provided with a counter for measuring the time of the timer, it is monitored whether a timer information to be transmitted in a prescribed time from the operation system can be received in a prescribed periodical time, the lapse of the stop time is held at each prescribed period where it cannot be received, a timer lapse time after the stop time is grasped very accurately after the stop has been released, and timer synchronization accuracy is guaranteed. <P>COPYRIGHT: (C)2008,JPO&INPIT |
