Global Patent Index - EP 1195019 A4

EP 1195019 A4 2002-09-04 - 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 (EN)

Application

EP 00943000 A

Priority

  • US 0017032 W
  • US 33906399 A

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 (main, further and additional classification)

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

IPC 8 full level (invention and additional information)

H03M 3/00 (2006.01); H04B 14/06 (2006.01)

CPC (invention and additional information)

H04B 14/062 (2013.01); H03M 3/47 (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 also 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

EPO simple patent family

WO 0079706 A1 20001228; AU 5753800 A 20010109; EP 1195019 A1 20020410; EP 1195019 A4 20020904

INPADOC legal status


2005-07-06 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20041231

2003-01-08 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20021122

2002-09-04 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20020723

2002-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT

2002-09-04 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7H 04B 14/06 A, 7H 04B 1/28 B, 7H 03M 3/02 B, 7H 04L 27/233 B

2002-04-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020123

2002-04-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT

2002-04-10 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI