(19)
(11) EP 1 829 314 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
29.02.2012 Bulletin 2012/09

(45) Mention of the grant of the patent:
23.03.2011 Bulletin 2011/12

(21) Application number: 05850855.7

(22) Date of filing: 09.12.2005
(51) International Patent Classification (IPC): 
H04L 27/36(2006.01)
(86) International application number:
PCT/IB2005/054157
(87) International publication number:
WO 2006/064435 (22.06.2006 Gazette 2006/25)

(54)

Calibrating amplitude and phase imbalance and DC offset of an analog I/Q modulator in a high-frequency transmitter

Kalibrierung von Amplituden- und Phasenungleichgewicht sowie DC-Offset eines analogen I/Q-Modulators bei einem Hochfrequenzsender

Étalonnage du déséquilibre d'amplitude et de phase et décalage en continu d'un modulateur I/Q analogique dans un émetteur haute fréquence

(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 16.12.2004 EP 04106643

(43) Date of publication of application:
05.09.2007 Bulletin 2007/36

(73) Proprietor: NXP B.V.
5656 AG Eindhoven (NL)

(72) Inventor:
  • BURY, Andreas Philips Int. Prop. & Standards GmbH
    52066 Aachen (DE)

(74) Representative: Schouten, Marcus Maria et al
NXP B.V. IP & Licensing Department High Tech Campus 60
5656 AG Eindhoven
5656 AG Eindhoven (NL)


(56) References cited: : 
US-B1- 6 393 258
   
  • YANG G ET AL: "I/Q modulator image rejection through modulation pre-distortion" VEHICULAR TECHNOLOGY CONFERENCE, 1996. MOBILE TECHNOLOGY FOR THE HUMAN RACE., IEEE 46TH ATLANTA, GA, USA 28 APRIL-1 MAY 1996, NEW YORK, NY, USA,IEEE, US, vol. 2, 28 April 1996 (1996-04-28), pages 1317-1320, XP010162604 ISBN: 0-7803-3157-5
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).