EP 1050142 A2 20001108 - RADIO TELEPHONE FOR SPREAD-SPECTRUM SYSTEM USING NONLINEAR MODULATION
Title (en)
RADIO TELEPHONE FOR SPREAD-SPECTRUM SYSTEM USING NONLINEAR MODULATION
Title (de)
FUNKTELEFON FÜR SYSTEM MIT SPREIZSPEKTRUM UND NICHTLINEARER MODULATION
Title (fr)
RADIOTELEPHONE POUR SYSTEME A ETALEMENT DU SPECTRE ET MODULATION NON LINEAIRE
Publication
Application
Priority
- GB 9900202 W 19990121
- GB 9801302 A 19980121
- GB 9801305 A 19980121
- GB 9801306 A 19980121
- GB 9801308 A 19980121
- GB 9804600 A 19980305
- GB 9805126 A 19980311
- GB 9805234 A 19980312
- GB 9805504 A 19980313
- GB 9814300 A 19980701
Abstract (en)
[origin: GB2350762A] A method is provided for despreading a signal which has been spread by a code and modulated according to a non-linear modulation scheme. The method comprises transforming the code into a succession of phasor positions (405) and correlating the spread signal with the transformed code (406). A despreader, demodulator and communications device implementing such a method are also provided.
IPC 1-7
IPC 8 full level
H04B 1/40 (2006.01); H04B 1/707 (2011.01); H04L 25/03 (2006.01); H04L 27/14 (2006.01); H04L 27/20 (2006.01); H04L 27/22 (2006.01); H04L 27/227 (2006.01); H04L 27/36 (2006.01); H04L 27/26 (2006.01); H04L 27/32 (2006.01)
CPC (source: EP)
H04B 1/707 (2013.01)
Citation (search report)
See references of WO 9938300A2
Designated contracting state (EPC)
DE ES FR IE IT NL SE
DOCDB simple family (publication)
GB 0018658 D0 20000913; GB 2350762 A 20001206; AU 2176599 A 19990809; CN 1294807 A 20010509; EP 1050142 A2 20001108; GB 2333674 A 19990728; GB 2333674 A8 19991007; GB 2333674 B 20030827; GB 9824426 D0 19990106; JP 2002502150 A 20020122; WO 9938300 A2 19990729; WO 9938300 A3 19991028
DOCDB simple family (application)
GB 0018658 A 19990121; AU 2176599 A 19990121; CN 99804262 A 19990121; EP 99901764 A 19990121; GB 9824426 A 19981106; GB 9900202 W 19990121; JP 2000529067 A 19990121