Title:
DEMODULATION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2010/015739
Kind Code:
A3
Abstract:
The circuit (7) for demodulating three mutually phase-shifted components of a baseband signal, in order to provide two quadrature demodulation components (I, Q), comprises – three circuit inputs (4, 5, 6), designed to receive respectively the three components, - first and second adder circuits (77, 78) and – a bank (70) of weighting circuits (71, 72, 73, 74, 75, 76) linked, at input, to the three circuit inputs (4, 5, 6) and linked, at output, to inputs of the first and second adder circuits (77, 78) so as to transmit to each adder input, with a determined weighting, a particular one of said three components, the weightings being chosen so that the first and second adder circuits (77, 78) provide the said two quadrature demodulation components (I, Q).
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Inventors:
HUYART BERNARD (FR)
MABROUK KAIS (FR)
MABROUK KAIS (FR)
Application Number:
PCT/FR2009/000949
Publication Date:
December 16, 2010
Filing Date:
July 29, 2009
Export Citation:
Assignee:
GROUPE ECOLES TELECOMM (FR)
HUYART BERNARD (FR)
MABROUK KAIS (FR)
HUYART BERNARD (FR)
MABROUK KAIS (FR)
International Classes:
H03D3/00
Foreign References:
| US5095536A | 1992-03-10 | |||
| US6335952B1 | 2002-01-01 | |||
| US20060063504A1 | 2006-03-23 | |||
| US20060141970A1 | 2006-06-29 |
Other References:
H. PARK ET AL.: "Unified DC Offset Cancellation and i/Q Regeneration with Carrier Phase Recovery in five port junction based Direct receivers", PROCEEDINGS OF THE 37TH EUROPEAN MICROWAVE CONFERENCE, 1 October 2007 (2007-10-01), pages 803 - 806, XP031191922
Attorney, Agent or Firm:
POCHART, François (58 avenue Marceau, Paris, FR)
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