| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a horizontal synchronization reproducing method and device capable of obtaining a stable clock by reducing the influence of noise included in a video signal. <P>SOLUTION: A first sample and hold circuit 15 and a second sample and hold circuit 16 cascaded by first and second pulse generation circuits 12 and 13 for generating first and second sampling pulses, respectively by an output of a synchronization separation circuit 11 to which an analog video input is inputted are provided. The second sample and hold circuit 16 resamples an output of the first sample and hold circuit 15 to thereby reduce the influence of noise of an analog video input. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
