| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily transmit data of different bit rates while mixing them. <P>SOLUTION: When positive minimum multiple of which a multiple arithmetic value common to a bit time length 1/Ai in a plurality of communication bit rates Ai is defined as a minimum multiple ai, respectively, an optical station-side device 3 constitutes a time division multiplex optical signal composed of a first data region having a bit rate Ai/ai and including a frame synchronizing information and a second data region in which packets destined to optical subscriber units 2 of the communication bit rate Ai are multiplexed in a time division manner, and transmits the time division multiplex optical signal to the plurality of optical subscriber units 2 via a demultiplexing/multiplexing means 12. <P>COPYRIGHT: (C)2008,JPO&INPIT |
