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

EP 1195019 A4 20020904 (EN)

Application

EP 00943000 A 20000620

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

H04B 14/06; H04B 1/28; H03M 3/02; H04L 27/233

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