EP 1072099 A1 20010131 - METHOD AND APPARATUS FOR TCM DECODING USING QPSK VITERBI DECODER
Title (en)
METHOD AND APPARATUS FOR TCM DECODING USING QPSK VITERBI DECODER
Title (de)
VERFAHREN UND VORRICHTUNG ZUR TCM DECODIERUNG UNTER VERWENDUNG VON EINEM QPSK VITERBI DECODIERER
Title (fr)
PROCEDE ET APPAREIL DESTINES AU DECODAGE DE MODULATION CODEE EN TREILLIS AU MOYEN D'UN DECODEUR DE VITERBI A DPQ
Publication
Application
Priority
- US 9908346 W 19990416
- US 8219998 P 19980417
Abstract (en)
[origin: WO9955010A1] A method and apparatus for decoding a high order trellis-coded modulated (TCM) signal avoids the need to modify a standard QPSK Viterbi decoder by including a pre-processing unit that transforms a received signal to an equivalent signal vector of soft value in the QPSK signal constellation.
IPC 1-7
IPC 8 full level
H03M 13/00 (2006.01); H04L 27/18 (2006.01)
CPC (source: EP)
H03M 13/256 (2013.01); H04L 27/38 (2013.01); H03M 13/6362 (2013.01)
Citation (search report)
See references of WO 9955010A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9955010 A1 19991028; AU 3647499 A 19991108; EP 1072099 A1 20010131
DOCDB simple family (application)
US 9908346 W 19990416; AU 3647499 A 19990416; EP 99918600 A 19990416