WO2000001062A3 - Frequency offset image rejection - Google Patents

Frequency offset image rejection Download PDF

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Publication number
WO2000001062A3
WO2000001062A3 PCT/IB1999/001182 IB9901182W WO0001062A3 WO 2000001062 A3 WO2000001062 A3 WO 2000001062A3 IB 9901182 W IB9901182 W IB 9901182W WO 0001062 A3 WO0001062 A3 WO 0001062A3
Authority
WO
WIPO (PCT)
Prior art keywords
phase
frequency
image rejection
frequency offset
degrees
Prior art date
Application number
PCT/IB1999/001182
Other languages
French (fr)
Other versions
WO2000001062A2 (en
Inventor
Rishi Mohindra
Original Assignee
Koninkl Philips Electronics Nv
Philips Svenska Ab
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 Koninkl Philips Electronics Nv, Philips Svenska Ab filed Critical Koninkl Philips Electronics Nv
Priority to EP99957671A priority Critical patent/EP1040566A2/en
Priority to JP2000557540A priority patent/JP2002519919A/en
Priority to KR1020007002131A priority patent/KR20010023486A/en
Publication of WO2000001062A2 publication Critical patent/WO2000001062A2/en
Publication of WO2000001062A3 publication Critical patent/WO2000001062A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/18—Modifications of frequency-changers for eliminating image frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • 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
    • H04B1/26—Circuits for superheterodyne receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0066—Mixing
    • H03D2200/0078—Mixing using a switched phase shifter or delay line

Abstract

An approach for providing image rejection during signal down conversion involves phase shifting quadrature signals at a frequency other than the down converted center frequency. One or more phase shifters coupled to a summer/subtractor provide forty five (45) degrees and one hundred thirty five (135) degrees of phase shift with respect to two quadrature input signals. The one or more phase shifters perform the phase shifts of the quadrature input signals at a frequency other than the center frequency of the down-converted signal.
PCT/IB1999/001182 1998-06-29 1999-06-24 Frequency offset image rejection WO2000001062A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99957671A EP1040566A2 (en) 1998-06-29 1999-06-24 Frequency offset image rejection
JP2000557540A JP2002519919A (en) 1998-06-29 1999-06-24 Frequency offset image rejection
KR1020007002131A KR20010023486A (en) 1998-06-29 1999-06-24 Frequency offset image rejection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/107,186 US6314279B1 (en) 1998-06-29 1998-06-29 Frequency offset image rejection
US09/107,186 1998-06-29

Publications (2)

Publication Number Publication Date
WO2000001062A2 WO2000001062A2 (en) 2000-01-06
WO2000001062A3 true WO2000001062A3 (en) 2000-04-13

Family

ID=22315292

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1999/001182 WO2000001062A2 (en) 1998-06-29 1999-06-24 Frequency offset image rejection

Country Status (7)

Country Link
US (1) US6314279B1 (en)
EP (1) EP1040566A2 (en)
JP (1) JP2002519919A (en)
KR (1) KR20010023486A (en)
CN (1) CN1273708A (en)
TW (1) TW439353B (en)
WO (1) WO2000001062A2 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US7209725B1 (en) * 1999-01-22 2007-04-24 Parkervision, Inc Analog zero if FM decoder and embodiments thereof, such as the family radio service
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
JP4284568B2 (en) * 1999-03-18 2009-06-24 ソニー株式会社 Receiving apparatus and method, and recording medium
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7054296B1 (en) * 1999-08-04 2006-05-30 Parkervision, Inc. Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US6634555B1 (en) 2000-01-24 2003-10-21 Parker Vision, Inc. Bar code scanner using universal frequency translation technology for up-conversion and down-conversion
US6766148B1 (en) * 2000-03-21 2004-07-20 Koninklijke Phillips Electronics N.V. Switched sideband frequency low-IF transmitter
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US6748220B1 (en) 2000-05-05 2004-06-08 Nortel Networks Limited Resource allocation in wireless networks
US6678503B1 (en) * 2000-05-17 2004-01-13 Intersil Americas Inc. Apparatus for radio frequency processing with dual modulus synthesizer
US6675004B1 (en) * 2000-08-25 2004-01-06 Interwave Communications International Ltd. Method and apparatus for receive channel noise suppression
US6980787B1 (en) * 2000-09-26 2005-12-27 Ati International Srl Image rejection mixing in wideband applications
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7333791B2 (en) * 2001-12-11 2008-02-19 Microtune (Texas), L.P. Use of an image reject mixer in a forward data channel tuner
JP3586260B2 (en) * 2002-04-10 2004-11-10 株式会社東芝 Semiconductor integrated circuit device
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US6909886B2 (en) * 2002-08-30 2005-06-21 Microtune ( Texas), L.P. Current driven polyphase filters and method of operation
DE60307414D1 (en) * 2003-01-21 2006-09-21 Suisse Electronique Microtech Operating frequency controlled quadrature signal generator
US7362384B2 (en) * 2004-02-26 2008-04-22 Broadcom Corporation Apparatus and method for feed-forward image rejection in a dual conversion receiver
US7375741B2 (en) * 2005-03-24 2008-05-20 Himax Technologies Limited Circuit and method for eliminating image interfering with desired channel
CN101305571B (en) * 2005-11-07 2011-09-07 松下电器产业株式会社 Image suppression receiver
US20080111607A1 (en) * 2006-11-10 2008-05-15 Hart Robert T Amplitude-linear differential phase shift circuit
US20090017770A1 (en) * 2007-07-11 2009-01-15 Broadcom Corporation Noise cancellation system for transceivers
CN109150113A (en) * 2018-08-23 2019-01-04 西安邮电大学 A kind of image-reject mixer in radiofrequency signal transceiver chip
CN111388011B (en) * 2020-03-26 2023-02-21 深圳开立生物医疗科技股份有限公司 Ultrasonic Doppler blood flow imaging method, device, equipment and readable storage medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140198A (en) * 1989-08-30 1992-08-18 Seiko Corporation Image canceling mixer circuit on an integrated circuit chip
US5678220A (en) * 1994-06-06 1997-10-14 France Telecom Device for rejection of the image signal of a signal converted to an intermediate frequency
GB2321353A (en) * 1996-12-18 1998-07-22 Plessey Semiconductors Ltd Image reject mixer arrangements

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964622A (en) * 1957-10-21 1960-12-13 Sylvania Electric Prod Image suppressed superheterodyne receiver
US3575660A (en) * 1968-10-03 1971-04-20 Hazeltime Corp Electronic image rejection apparatus
GB2094079A (en) * 1981-02-20 1982-09-08 Philips Electronic Associated Fm demodulator
US4755761A (en) * 1986-06-26 1988-07-05 General Electric Company Zero intermediate-frequency demodulator
GB9017418D0 (en) 1990-08-08 1990-09-19 Gen Electric Co Plc Half frequency mixer
JP2574596B2 (en) * 1992-06-03 1997-01-22 松下電器産業株式会社 Frequency converter
JPH06334440A (en) * 1993-03-26 1994-12-02 Sanyo Electric Co Ltd Double balance mixer circuit
US5410743A (en) * 1993-06-14 1995-04-25 Motorola, Inc. Active image separation mixer
US5826180A (en) * 1994-08-08 1998-10-20 Nice Systems Ltd. Near homodyne radio frequency receiver
GB9424056D0 (en) 1994-11-29 1995-01-18 Sgs Thomson Microelectronics A satellite tuner stage
US5912975A (en) * 1995-06-30 1999-06-15 Philips Electronics North America Corp Method and circuit for creating phantom sources using phase shifting circuitry
FR2742620B1 (en) * 1995-12-15 1998-02-20 Matra Communication IMAGE FREQUENCY REJECTION MIXER
JP3336196B2 (en) * 1996-06-25 2002-10-21 株式会社ミツトヨ Amplitude extraction device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140198A (en) * 1989-08-30 1992-08-18 Seiko Corporation Image canceling mixer circuit on an integrated circuit chip
US5678220A (en) * 1994-06-06 1997-10-14 France Telecom Device for rejection of the image signal of a signal converted to an intermediate frequency
GB2321353A (en) * 1996-12-18 1998-07-22 Plessey Semiconductors Ltd Image reject mixer arrangements

Also Published As

Publication number Publication date
TW439353B (en) 2001-06-07
CN1273708A (en) 2000-11-15
KR20010023486A (en) 2001-03-26
US6314279B1 (en) 2001-11-06
JP2002519919A (en) 2002-07-02
WO2000001062A2 (en) 2000-01-06
EP1040566A2 (en) 2000-10-04

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