| 摘要 |
<p>A partial response Trellis decoder which is concerned with a trellis coded modulation in a high definition television (HDTV) having a specific and detailed configuration includes a distance mapper for calculating first, second, third and fourth Euclidean distances from input signals from which NTSC interference is removed, a Viterbi decoder for Viterbi decoding the first, second, third and fourth Euclidean distances output from the distance mapper, a delay means for delaying and outputting the data output from the Viterbi decoder for each step, a ruler selector for selecting ruler type signal depending on the signals output from the delay means, and a slicer for slicing depending on ruler type signal selected in the ruler selector and the input signals from which NTSC interference is removed. <IMAGE></p> |
