DEVICE FOR DETECTING SYNCHRONOUS SIGNAL

摘要

PURPOSE: A device for detecting a synchronous signal is provided to reduce a synchronous detecting error by considering a specialized bit field, which is restricted by a characteristic of the DAB(Digital Audio Broadcasting) audio, as well as a synchronous-word of a header on a DAB audio frame. CONSTITUTION: A shift register(610) shifts/stores the bit-word received from a viterbi decoder(550). A counter(620) generates a cyclic signal of a bit or a word cycle by accumulating the bit-word inputted from the shift register. A synchronous detector(630) detects the sync-word by examining a plurality of bit fields inputted from the shift register depending on the cyclic signal inputted from the counter.