| 摘要 |
PURPOSE:To minimize the structure of a storage device, by transmitting a synchronizing signal through a master station ince it uses channels in time division to plural slave stations and at the same time by transmitting the synchronizing signal through a slave station with a time slot of own station after measurement of the time interval of the synchronizing signal. CONSTITUTION:The length of a frame is equal to 125musec with a PCM communication system of a 24-channel system. A frame synchronizing signal F is put into a descending code train given from a master station with every 125musec to obtain a frame synchronizing signal that has the same pattern with every 6 frames. A slave station detects the timing of transmission for each 125musec as well as the timing with which the code that had the bit stealing with every 6 frames is transmitted. Then the slave station performs transmission S with the timing given to its own station. Thus the master station can receive the data from slave stations without having storage devices equivalent to many frames. |
