EP 1068706 A1 20010117 - SYSTEM, DEVICE AND METHOD FOR IMPROVING A DEFINED PROPERTY OF TRANSFORM-DOMAIN SIGNALS
Title (en)
SYSTEM, DEVICE AND METHOD FOR IMPROVING A DEFINED PROPERTY OF TRANSFORM-DOMAIN SIGNALS
Title (de)
SYSTEM, EINRICHTUNG UND VERFAHREN ZUR VERBESSERUNG EINER BESTIMMTEN EIGENSCHAFT EINES SIGNALES IM TRANSFORMBEREICH
Title (fr)
SYSTEME, DISPOSITIF ET PROCEDE VISANT A AMELIORER UNE PROPRIETE DEFINIE DE SIGNAUX DU DOMAINE DES TRANSFORMEES
Publication
Application
Priority
- US 9907840 W 19990409
- US 5867198 A 19980410
- US 8717798 A 19980529
Abstract (en)
[origin: WO9953662A1] In a transmitter (10) for transmitting data in blocks over a channel to a receiver (19), a device for improving a defined property of transform-domain symbols, the device, including: a signal mapper (12) which maps the input data into blocks of symbols in a first domain; wherein each of the symbols is chosen from a base constellation contained in an expanded constellation having expansion symbols, and wherein at least some of the symbols in the base constellation have one or more corresponding expansion symbols; and a perturbation transform device (14 and 16), responsive to the blocks of symbols, which produces for each block of symbols in the first domain a block of perturbed transform-domain symbols in order to improve a defined property of the transform-domain symbols.
IPC 1-7
IPC 8 full level
H04L 27/26 (2006.01); H04L 27/34 (2006.01); H04L 27/36 (2006.01)
CPC (source: EP KR US)
H04L 27/04 (2013.01 - KR); H04L 27/2602 (2013.01 - EP KR US); H04L 27/2614 (2013.01 - EP US); H04L 27/3411 (2013.01 - EP)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
WO 9953662 A1 19991021; AU 3487099 A 19991101; AU 740189 B2 20011101; BR 9909525 A 20001212; CA 2328145 A1 19991021; CN 1300493 A 20010620; EP 1068706 A1 20010117; EP 1068706 A4 20010912; JP 2002511707 A 20020416; KR 20010042558 A 20010525
DOCDB simple family (application)
US 9907840 W 19990409; AU 3487099 A 19990409; BR 9909525 A 19990409; CA 2328145 A 19990409; CN 99804943 A 19990409; EP 99916577 A 19990409; JP 2000544104 A 19990409; KR 20007011221 A 20001009