| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a transit time fixing apparatus performing high-accuracy sampling synchronization control by fixing a transmission delay time to a synchronization frame at all times. <P>SOLUTION: A frame 101 from a client 3(1) is transmitted to a transit time fixing apparatus 2 via a PHY 22(1) that is a port. A frame class determining means 25a in a control circuit 25 determines a frame class of the frame 101 sent from the client 3(1). A destination determining means 25b acquires a destination address from the received frame 101 to specify a frame control circuit 23(n+1) being a delay command target. The frame 101 determined as a synchronization frame is delayed for a fixed time by a fixed-time delay means 26a in the specified frame control circuit 23(n+1). <P>COPYRIGHT: (C)2010,JPO&INPIT |
