EP 1195019 A4 20020904 - DIRECT CONVERSION DELTA-SIGMA RECEIVER
Title (en)
DIRECT CONVERSION DELTA-SIGMA RECEIVER
Title (de)
DELTA-SIGMA-EMPFÄNGER MIT DIREKTER UMSETZUNG
Title (fr)
RECEPTEUR DELTA-SIGMA A CONVERSION DIRECTE
Publication
Application
Priority
- US 0017032 W 20000620
- US 33906399 A 19990623
Abstract (en)
[origin: WO0079706A1] A wireless receiver receives a wireless signal by inverting the polarity (78) of an incoming waveform on every one half clock cycle of a conversion clock to produce a commutated waveform and converting said commutated waveform to a series of representative digital values using a delta-sigma modulator (80, 82, 84, 86) clocked by the conversion clock. In this way, the receiver operates over a large dynamic range and the use of automatic gain control in the front end may be eliminated.
IPC 1-7
IPC 8 full level
H03M 3/00 (2006.01); H04B 14/06 (2006.01)
CPC (source: EP)
H03M 3/47 (2013.01); H04B 14/062 (2013.01); H03M 3/40 (2013.01); H03M 3/43 (2013.01); H03M 3/456 (2013.01)
Citation (search report)
- [PX] WO 0046926 A2 20000810 - TECHNOCONCEPTS INC [US], et al
- [A] WO 9930428 A1 19990617 - QUALCOMM INC [US]
- [A] WO 9405087 A1 19940303 - WIRELESS ACCESS INC [US]
- [A] EP 0757446 A2 19970205 - NOKIA MOBILE PHONES LTD [FI]
- [A] JANTZI S ET AL: "A complex bandpass /spl Delta//spl Sigma/ converter for digital radio", CIRCUITS AND SYSTEMS, 1994. ISCAS '94., 1994 IEEE INTERNATIONAL SYMPOSIUM ON LONDON, UK 30 MAY-2 JUNE 1994, NEW YORK, NY, USA,IEEE, US, 30 May 1994 (1994-05-30), pages 453 - 456, XP010143423, ISBN: 0-7803-1915-X
- See references of WO 0079706A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT
DOCDB simple family (publication)
WO 0079706 A1 20001228; AU 5753800 A 20010109; EP 1195019 A1 20020410; EP 1195019 A4 20020904
DOCDB simple family (application)
US 0017032 W 20000620; AU 5753800 A 20000620; EP 00943000 A 20000620