| 摘要 |
PURPOSE:To obtain the synchronization of a multi-frame at an acculate position by making a frame signal significant for one bit only in a first frame of a multi-frame. CONSTITUTION:In accordance with the counting output of one frame by a counter 15 of a transmitting equipment 10, the data from a memory 12 is loaded to a P/S converter 14, the output of a transmitting frame counter 16 comes to be a frame signal (1) through an AND circuit 17 together with the output of the position of a bit 1 of the counter 15, and is sent to a receiving equipment 20 together with a clock signal (2) from an oscillator 13 and a data signal (3) from the converter 14. At the equipment 20, a present frame number is identified by a frame counter 24. In this case, the signal (1) is made significant only for a first bit (one clock of signal 2) of a first frame. As this result, the first bit of respective frames can be identified. |
