Pulse or digital communications – Transmitters – Antinoise or distortion
Patent
1996-01-16
1997-02-04
Bocure, Tesfaldet
Pulse or digital communications
Transmitters
Antinoise or distortion
375298, 375308, H04L 2704, H04L 2720
Patent
active
056006772
ABSTRACT:
A trellis coded modulation system comprises a first coder for convolutionally coding a first input data bit X.sub.1 for deriving first and second output bits Z.sub.0 and Z.sub.1. A second coder precodes a second input data bit X.sub.2 for deriving an output bit Z.sub.2. The output bits Z.sub.0, Z.sub.1 and Z.sub.2 are mapped into corresponding one-dimensional multi-value symbols, wherein the output bits Z.sub.0, Z.sub.1 identify respective subsets of the symbols, each of the subsets comprising two equally spaced symbol values, and the output bits Z.sub.1, Z.sub.2 identify respective pairs of the symbols, each of the pairs comprising two adjacent symbol values.
REFERENCES:
patent: 4945549 (1990-07-01), Simon et al.
patent: 5087975 (1992-02-01), Citta et al.
patent: 5095497 (1992-03-01), Aman et al.
patent: 5162812 (1992-11-01), Aman et al.
patent: 5249200 (1993-09-01), Chen et al.
patent: 5263051 (1993-11-01), Eyuboglu
patent: 5311547 (1994-05-01), Wei
patent: 5363408 (1994-11-01), Paik et al.
patent: 5388124 (1995-02-01), Laroia et al.
patent: 5394439 (1995-02-01), Hemmati
patent: 5442626 (1995-08-01), Wei
patent: 5452009 (1995-09-01), Citta
patent: 5452015 (1995-09-01), Hulyalkar
patent: 5457705 (1995-10-01), Todoroki
patent: 5508752 (1996-04-01), Kim et al.
Lee-Fang Wei, "Precoding Technique For Partial-Response Channels with Application to HDTV Transmission," IEEE Journal on selected area of communication Vol. 11, No. 1, pp. 127-135, XP 00378004 Jan. 1993
Ezio Biglieri et al., "Introduction to Trellis-Coded Modulation with Application," Macmillan Publishing Co., pp. 487-490 1991.
IEEE Transactions on Communications, Jul., 1989, USA, vol. 37., No. 7, ISSN 0090-6778, pp. 669-676, Chevillat P. R. et al.: "Decoding of Trellis-Encoded Signals in the Presence of Intersymbol Interference and Noise".
IEEE Transactions on Communications Feb., 1988, USA, vol. 36, No. 2, ISSN 0090-6778, pp. 222-224, Zehavi E. et al.: "On Saving Decoder States for some Trell Codes and Partial Response Channels".
Citta Richard W.
Willming David A.
Bocure Tesfaldet
Zenith Electronics Corporation
LandOfFree
Trellis coded modulation system for digital television signal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Trellis coded modulation system for digital television signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trellis coded modulation system for digital television signal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-686649