| 摘要 |
<p>An apparatus is disclosed for bringing into syncnronism a first pulse train and a second pulse train having the same pseudorandom coding, which apparatus comprises means (26, 27) for gating the first pulse train in synchronism with the second pulse train to derive a pair of opposite gated signals, means (29) for combining and means (30) for integrating the gated signals to comprise an output signal, and means (24) for delaying the second pulse train signal to maximize the output signal.</p> |
