FRAME SYNCHRONIZATION SYSTEM

摘要

PURPOSE:To provide a frame synchronization system which reduces missynchornization even for a frame pattern consisting of a small number of bits by making a sent data signal pseudo-random and then inserting the frame pattern. CONSTITUTION:On a transmission side, the multiplexed data signal from a time division multiplexing part 3 is made pseudo-random by a scrambler 41 and a frame inserting circuit 42 inserts the frame pattern into the signal. On a reception side, a frame synchronizing circuit 44 detects the frame pattern from the received pseudo-random multiplexed data signal and attains frame synchronization. The pseudo-random multiplexed data signal is restored by a following descrambler 45 to the original multiplexed data signal.