Partial response trellis decoder for high definition television (HDTV) system
USRE36980E · kind E · reissue
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Apr 1, 2018 |
Classification
- Technology area (CPC —)General
Abstract
A partial response Trellis decoder that performs Trellis coded modulation in a high definition television (HDTV) having a specific and detailed configuration and includes a distance mapper for calculating first, second, third and fourth Euclidean distances between the input signal and a reference value; a Viterbi decoder for Viterbi decoding the first, second, third and fourth Euclidean distances calculated by the distance mapper; a first delay for delaying and outputting the Yiterbi decoded data for each Euclidean distance; a ruler selector for selecting a ruler type signal based on the signals output by the first delay; and a slicer for slicing the selected ruler type signal and the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.