WO2004086637A3 - Direct-conversion receiver system and method with quadrature balancing and dc offset removal - Google Patents

Direct-conversion receiver system and method with quadrature balancing and dc offset removal Download PDF

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Publication number
WO2004086637A3
WO2004086637A3 PCT/US2004/008864 US2004008864W WO2004086637A3 WO 2004086637 A3 WO2004086637 A3 WO 2004086637A3 US 2004008864 W US2004008864 W US 2004008864W WO 2004086637 A3 WO2004086637 A3 WO 2004086637A3
Authority
WO
WIPO (PCT)
Prior art keywords
direct
receiver system
conversion receiver
offset removal
quadrature balancing
Prior art date
Application number
PCT/US2004/008864
Other languages
French (fr)
Other versions
WO2004086637A2 (en
WO2004086637A8 (en
Inventor
Lawrence J Malone
Lon W Christensen
Original Assignee
Quorum Systems Inc
Lawrence J Malone
Lon W Christensen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Quorum Systems Inc, Lawrence J Malone, Lon W Christensen filed Critical Quorum Systems Inc
Publication of WO2004086637A2 publication Critical patent/WO2004086637A2/en
Publication of WO2004086637A8 publication Critical patent/WO2004086637A8/en
Publication of WO2004086637A3 publication Critical patent/WO2004086637A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers

Abstract

A system and method are provided for direct-conversion of a modulated radio-frequency (RF) signal. After receiving an RF signal, the RF signal is mixed with a plurality of oscillator signals with different phases in an interleaving manner.
PCT/US2004/008864 2003-03-24 2004-03-22 Direct-conversion receiver system and method with quadrature balancing and dc offset removal WO2004086637A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45651003P 2003-03-24 2003-03-24
US60/456,510 2003-03-24

Publications (3)

Publication Number Publication Date
WO2004086637A2 WO2004086637A2 (en) 2004-10-07
WO2004086637A8 WO2004086637A8 (en) 2004-11-25
WO2004086637A3 true WO2004086637A3 (en) 2005-07-28

Family

ID=33452160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/008864 WO2004086637A2 (en) 2003-03-24 2004-03-22 Direct-conversion receiver system and method with quadrature balancing and dc offset removal

Country Status (1)

Country Link
WO (1) WO2004086637A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6016422A (en) * 1997-10-31 2000-01-18 Motorola, Inc. Method of and apparatus for generating radio frequency quadrature LO signals for direct conversion transceivers
US6055429A (en) * 1996-10-07 2000-04-25 Lynch; Michael R. Distributed wireless call processing system
US6064664A (en) * 1996-09-21 2000-05-16 Samsung Electronics Co., Ltd. Base-band interleaver for code division multiple access mobile telecommunication system
US6385439B1 (en) * 1997-10-31 2002-05-07 Telefonaktiebolaget Lm Ericsson (Publ) Linear RF power amplifier with optically activated switches
US6665159B2 (en) * 2000-02-21 2003-12-16 Hitachi, Ltd. Semiconductor integrated circuit device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6064664A (en) * 1996-09-21 2000-05-16 Samsung Electronics Co., Ltd. Base-band interleaver for code division multiple access mobile telecommunication system
US6055429A (en) * 1996-10-07 2000-04-25 Lynch; Michael R. Distributed wireless call processing system
US6016422A (en) * 1997-10-31 2000-01-18 Motorola, Inc. Method of and apparatus for generating radio frequency quadrature LO signals for direct conversion transceivers
US6385439B1 (en) * 1997-10-31 2002-05-07 Telefonaktiebolaget Lm Ericsson (Publ) Linear RF power amplifier with optically activated switches
US6665159B2 (en) * 2000-02-21 2003-12-16 Hitachi, Ltd. Semiconductor integrated circuit device

Also Published As

Publication number Publication date
WO2004086637A2 (en) 2004-10-07
WO2004086637A8 (en) 2004-11-25

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