| 摘要 |
<p>PURPOSE:To execute the phase synchronization of the color burst of a color TV signal by using two kinds of first and second phase reference signals. CONSTITUTION:At a transmission part, a color subcarrier generating circuit 3a and a frequency-dividing circuit 5 sample 6 and transmit the phase reference signal synchronizing with the burst of an input television color signal at every fixed sample of a transmission clock from a clock generating circuit 9. At a receiving part, a feed-back control is executed so that the phase reference signal decoded by a decoding circuit 16 and the phase reference signal generated by a color subcarrier generating circuit 21 can be made into a fixed phase relation, and simultaneously, a sampling clock is reproduced. Thus, the phase synchronization of the color burst can be executed.</p> |
