| 摘要 |
PURPOSE:To make a block in the unit of blocks and a block of a packet coincident with each other and to establish frame synchronization in the system in which data in the unit of blocks are converted in packets and the packet is communicated via a channel having a communication cycle asynchronously with the period of the blocks. CONSTITUTION:Data of a track T1 are sequentially accommodated in packets DP1, DP2, ... DP26. A timing B1 of a tail end of the packet DP26 accommodating final data of the track T1 having a difference (b) from the timing of the final data is compared with a timing C1 delayed by the difference (a) between one track period and 26 communication cycles and when the timing B1 is faster than the timing C1, an idle packet is inserted next to the DP26. Furthermore, time information is sampled in the timing of a frame synchronization pulse and set to the DP1 at a sender side and the receiver side compares the time information with time information of the receiver side to generate a frame synchronization pulse. |
