| 摘要 |
<p>PURPOSE:To absorb jitter simultaneously with a deinterleaving operation by using the margin of a memory space of a deinterleave memory. CONSTITUTION:An input reference address RA01 is varied relatively with respect to an output reference address RA00 if an input frame synchronizing signal is varied with respect to time. However, if the address RA01 is within the range of RA00-(RA00+127), jitter is absorbed because input data does not occupy the same address as output data. The address RA01 is changed forcibly to RA00+64 only when it exceeds this range, and the difference between addresses RA01 and RA00 is set to 64. Consequently, input data is addressed between the input address of the Nth symbol and the output address of the (N+1)th symbol. Hereafter, as long as the address RA01 is varied from RA00 to RA00+127 with the center as RA00+64, jitter is absorbed though the input frame synchronizing signal has jitter.</p> |
