EP 1485994 A2 20041215 - ARRANGEMENT FOR REDUCING NON-LINEAR DISTORTIONS IN AN OUTPUT SIGNAL OF AN AMPLIFIER STAGE
Title (en)
ARRANGEMENT FOR REDUCING NON-LINEAR DISTORTIONS IN AN OUTPUT SIGNAL OF AN AMPLIFIER STAGE
Title (de)
ANORDNUNG ZUR REDUZIERUNG VON NICHTLINEAREN VERZERRUNGEN BEI EINEM VERSTÄRKERSTUFEN-AUSGANGSSIGNAL EINER VERSTÄRKERSTUFE
Title (fr)
SYSTEME PERMETTANT DE REDUIRE LES DISTORSIONS NON LINEAIRES D'UN SIGNAL DE SORTIE D'UN ETAGE D'AMPLIFICATION
Publication
Application
Priority
- EP 03720137 A 20030227
- DE 0300643 W 20030227
- DE 10211537 A 20020315
- EP 02006023 A 20020315
Abstract (en)
[origin: WO03079540A2] The invention relates to an arrangement for reducing non-linear distortions in an output signal of an amplifier stage that is configured according to the feed forward principle. An amplifier stage input signal arrives at a main branch of an amplifier. The output signal of the amplifier, which is distorted in a non-linear manner, arrives at an adder by means of which the amplifier stage output signal is formed. The output signal which is distorted in a non-linear manner and the amplifier stage input signal are fed to a secondary branch that comprises an error signal device. Said error signal device generates an error signal from the delayed amplifier stage input signal and the output signal of the amplifier, which is distorted in a non-linear manner. The error signal is fed to the adder in order to reduce distortions in the amplifier stage output signal. The error signal device comprises at least one transmission device that is provided with a negative group delay time.
IPC 1-7
IPC 8 full level
H03F 1/32 (2006.01)
CPC (source: EP US)
H03F 1/3229 (2013.01 - EP US)
Citation (search report)
See references of WO 03079540A2
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 03079540 A2 20030925; WO 03079540 A3 20031120; AU 2003223841 A1 20030929; AU 2003223841 A8 20030929; CN 1643781 A 20050720; EP 1485994 A2 20041215; JP 2005521285 A 20050714; MX PA04008981 A 20041126; US 2005127996 A1 20050616; US 7170346 B2 20070130
DOCDB simple family (application)
DE 0300643 W 20030227; AU 2003223841 A 20030227; CN 03806075 A 20030227; EP 03720137 A 20030227; JP 2003577416 A 20030227; MX PA04008981 A 20030227; US 50784904 A 20040915