| 摘要 |
PURPOSE:To use a frame aligner in common by using a selector circuit comprising an OR circuit, AND circuit and an inverting circuit. CONSTITUTION:Frame synchronizing signals c, d outputted from a frame and multi-frame synchronizing circuit 3 are inputted to an AND circuit 4 and the frame synchronizing signal (d) is inverted by the inverting circuit 6 and inputted to the AND circuit 4'. Then the output of the AND circuits 4, 4' is inputted to the OR circuit 5 and its output is inputted to an input terminal of the frame aligner 7. Furthermore, a frame synchronizing signal (e) in the device is inputted to the other input terminal of the frame aligner 7 and a data multi-frame synchronizing signal (f) is outputted with synchronization. |
