| 摘要 |
<p>PURPOSE:To always attain stable reception by devising the system such that frame synchronization is not established by a false frame synchronizing pattern signal. CONSTITUTION:A transmission signal (i) applied with transmission scramble is inputted to a bit clock reproducing circuit 8 at the reception side, a bit clock signal (j) is reproduced to form a system clock. The synchronization is established by the extraction of consecutive frame synchronizing pattern signals for each frame period in a frame synchronizing signal reproducing circuit 9, and since the transmission scramble is applied by using a pseudo random signal initialized for each N-frame period, a false frame synchronizing pattern signal is not consecutively generated for each frame period and the synchronization is not established by the false frame synchronizing pattern signal. Thus, the frame synchronization is established in an always correct timing and stable reception is attained.</p> |
