EP 1329018 A1 20030723 - REDUCING THE DC OFFSET OF A HOMODYNE RECEIVER
Title (en)
REDUCING THE DC OFFSET OF A HOMODYNE RECEIVER
Title (de)
REDUZIERUNG DES DC-OFFSETS EINES HOMODYNEN EMPFÄNGERS
Title (fr)
REDUCTION DU DECALAGE EN CONTINU D'UN RECEPTEUR HOMODYNE
Publication
Application
Priority
DE 0003174 W 20000912
Abstract (en)
[origin: WO0223712A1] The invention relates to a homodyne receiver comprising a mixer (3) to which the signal (1) to be demodulated as well as another signal from a local oscillator (4) are fed. The homodyne receiver is advantageously provided with a modulator for spreading the local oscillator signal by using a spreading code and with a demodulator (5) for despreading the output signal of the mixer. The spread signal of the local oscillator inserted into the receive branch of the homodyne receiver can thereby be suppressed and does not lead to an unwanted DC offset.
IPC 1-7
IPC 8 full level
H03D 9/00 (2006.01); H03D 7/00 (2006.01); H04B 1/30 (2006.01); H04B 1/707 (2011.01); H04J 13/16 (2011.01)
CPC (source: EP)
H03D 7/00 (2013.01)
Citation (search report)
See references of WO 0223712A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0223712 A1 20020321; CN 1454408 A 20031105; EP 1329018 A1 20030723; JP 2004509496 A 20040325
DOCDB simple family (application)
DE 0003174 W 20000912; CN 00819885 A 20000912; EP 00963981 A 20000912; JP 2002527042 A 20000912