| 摘要 |
<p>PURPOSE:To obtain a data scarcely having an error and a quantization noise, by dividing a period of a first sampling clock into plural periods, sampling it by a second sampling clock, detecting a time shift of both these clocks, and eliminating an undesirable influence of stuffing. CONSTITUTION:A coefficient K and (1-k) of the first and second sampling clocks outputted from ROMs 25, 26, respectively correspond to a phase difference of both sampling timings. Also, the coefficient K and (1-K) are supplied to one input ends of multiplying circuits 32, 33 respectively. The circuit 32 between them generates xn-1.K by multiplying K by a digital data xn-1 sampled by the first sampling clock. On the other hand, the circuit 33 obtains xn (1-K) by multiplying the coefficient (1-K) by a sampled digital data xn. Output data of these circuits 32, 33 are added, the equation is calculated, and a digital data y<m> sampled by the second sampling clock is outputted from a terminal 35.</p> |
