IL136712A0 - Noise cancellation circuit and quadrature downconverter - Google Patents

Noise cancellation circuit and quadrature downconverter

Info

Publication number
IL136712A0
IL136712A0 IL13671299A IL13671299A IL136712A0 IL 136712 A0 IL136712 A0 IL 136712A0 IL 13671299 A IL13671299 A IL 13671299A IL 13671299 A IL13671299 A IL 13671299A IL 136712 A0 IL136712 A0 IL 136712A0
Authority
IL
Israel
Prior art keywords
noise cancellation
cancellation circuit
quadrature downconverter
downconverter
quadrature
Prior art date
Application number
IL13671299A
Other languages
English (en)
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of IL136712A0 publication Critical patent/IL136712A0/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/322—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M3/324—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by means or methods for compensating or preventing more than one type of error at a time, e.g. by synchronisation or using a ratiometric arrangement
    • H03M3/344—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by means or methods for compensating or preventing more than one type of error at a time, e.g. by synchronisation or using a ratiometric arrangement by filtering other than the noise-shaping inherent to delta-sigma modulators, e.g. anti-aliasing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/402—Arrangements specific to bandpass modulators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/414—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type
    • H03M3/418—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type all these quantisers being single bit quantisers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/462—Details relating to the decimation process

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Noise Elimination (AREA)
  • Analogue/Digital Conversion (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
IL13671299A 1998-01-09 1999-01-11 Noise cancellation circuit and quadrature downconverter IL136712A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/005,355 US6243430B1 (en) 1998-01-09 1998-01-09 Noise cancellation circuit in a quadrature downconverter
PCT/US1999/000580 WO1999035746A1 (en) 1998-01-09 1999-01-11 Noise cancellation circuit and quadrature downconverter

Publications (1)

Publication Number Publication Date
IL136712A0 true IL136712A0 (en) 2001-06-14

Family

ID=21715446

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13671299A IL136712A0 (en) 1998-01-09 1999-01-11 Noise cancellation circuit and quadrature downconverter

Country Status (14)

Country Link
US (1) US6243430B1 (no)
EP (1) EP1046232B1 (no)
JP (1) JP4162851B2 (no)
KR (1) KR100545492B1 (no)
CN (1) CN1168215C (no)
AU (1) AU758706B2 (no)
BR (1) BR9906807A (no)
CA (1) CA2315758C (no)
DE (1) DE69924233T2 (no)
ES (1) ES2237906T3 (no)
IL (1) IL136712A0 (no)
NO (1) NO326664B1 (no)
RU (1) RU2233023C2 (no)
WO (1) WO1999035746A1 (no)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI120124B (fi) * 1998-05-29 2009-06-30 Nokia Corp Menetelmä ja piiri signaalin näytteistämiseksi suurella näytteistystaajuudella
FR2780590B1 (fr) * 1998-06-29 2000-10-06 Sgs Thomson Microelectronics Demodulateur qpsk a entree en frequence intermediaire
DE69908577T2 (de) * 1999-06-30 2003-12-11 Motorola, Inc. Apparat und Methode zum Empfang und Verarbeitung eines Radiofrequenzsignals
US6904104B1 (en) * 1999-09-10 2005-06-07 Telefonaktiebolaget L M Ericsson (Publ) Technique for demodulating a linear modulated data signal in a communications system
SE9903532D0 (sv) * 1999-09-28 1999-09-28 Jiren Yuan Versatile charge sampling circuits
US6728325B1 (en) * 2000-02-02 2004-04-27 Legerity, Inc. Method and apparatus for mixing down and spectrum folding frequency diverse modulated carrier
DE60102548T2 (de) * 2000-02-04 2005-02-24 Koninklijke Philips Electronics N.V. Fm-rundfunkempfänger
FR2808391B1 (fr) * 2000-04-28 2002-06-07 France Telecom Systeme de reception pour antenne multicapteur
GB2362279B (en) * 2000-05-12 2004-12-29 Global Silicon Ltd Radio receiver
US7693236B2 (en) * 2000-05-15 2010-04-06 Texas Instruments Incorporated If-to-baseband conversion for flexible frequency planning capability
US6724177B2 (en) * 2000-12-14 2004-04-20 Tropian, Inc. Method and apparatus for accurate measurement of communications signals
US7110732B2 (en) * 2001-04-09 2006-09-19 Texas Instruments Incorporated Subsampling RF receiver architecture
US7346134B2 (en) * 2001-05-15 2008-03-18 Finesse Wireless, Inc. Radio receiver
WO2002095972A1 (en) * 2001-05-25 2002-11-28 The National University Of Singapore Sigma-delta modulation code division multiple-access receiver
US6429797B1 (en) * 2001-07-05 2002-08-06 International Business Machines Corporation Decimation filter for a bandpass delta-sigma ADC
US20030058148A1 (en) * 2001-09-21 2003-03-27 Sheen Timothy W. Multiple a-to-d converter scheme employing digital crossover filter
US20030096588A1 (en) * 2001-11-20 2003-05-22 Vanderhelm Ronald J. Receiver intermod enhancer
US6999132B1 (en) * 2002-02-19 2006-02-14 Lsi Logic Corporation RF/IF digital demodulation of video and audio
KR100454483B1 (ko) * 2002-03-04 2004-10-28 삼성전자주식회사 아이/큐 복조장치 및 그의 아이/큐 신호생성방법
US7924937B2 (en) 2002-03-04 2011-04-12 Stmicroelectronics N.V. Resonant power converter for radio frequency transmission and method
WO2003077529A2 (en) 2002-03-04 2003-09-18 Stmicroelectronics, N.V. Coder apparatus for resonant power conversion and method
US7173980B2 (en) * 2002-09-20 2007-02-06 Ditrans Ip, Inc. Complex-IF digital receiver
AU2002354295A1 (en) 2002-12-24 2004-07-22 Pirelli And C. S.P.A. Radio base station receiver having digital filtering and reduced sampling frequency
US7199738B2 (en) * 2003-03-28 2007-04-03 Siemens Medical Solutions Usa, Inc. Sigma delta beamformer and method with reduced artifact
US7206563B1 (en) * 2003-04-17 2007-04-17 Apogee Technology, Inc. Reduction of radio frequency interference (RFI) produced by switching amplifiers
CN1549454A (zh) * 2003-05-16 2004-11-24 皇家飞利浦电子股份有限公司 具有一个有限动态范围的adc的无线通信接收机
CN1625063A (zh) * 2003-12-05 2005-06-08 皇家飞利浦电子股份有限公司 带通采样接收机及其采样方法
US7180432B2 (en) * 2004-02-27 2007-02-20 Freescale Semiconductor, Inc. Method and apparatus for complex cascade sigma-delta modulation and single-sideband analog-to-digital conversion
DE602004008214D1 (de) * 2004-03-18 2007-09-27 St Microelectronics Srl Verfahren und Vorrichtungen zur Kodierung/Dekodierung von Signalen, sowie Computerprogrammprodukt dafür
JP3970266B2 (ja) * 2004-06-23 2007-09-05 株式会社半導体理工学研究センター 複素バンドパスδσａｄ変調器、ａｄ変換回路及びディジタル無線受信機
CN1298109C (zh) * 2004-06-25 2007-01-31 天津大学 新型锁相检测电路
US8159380B2 (en) * 2004-11-16 2012-04-17 St-Ericsson Sa Continuous-time sigma-delta analog-to-digital converter with non-invasive filter(s) for immunity preservation against interferers
EP1839396A2 (en) * 2005-01-13 2007-10-03 Nxp B.V. Low intermediate frequency receiver and the sampling method thereof
KR100631210B1 (ko) * 2005-02-18 2006-10-04 삼성전자주식회사 ＩＦ ｄｉｒｅｃｔ ｓａｍｐｌｉｎｇ 방식을 적용한 수신기의 복조회로
JP3992287B2 (ja) * 2005-06-15 2007-10-17 株式会社半導体理工学研究センター 複素バンドパスフィルタ、複素バンドパスδσａｄ変調器、ａｄ変換回路及びデジタル無線受信機
US8050649B2 (en) * 2005-08-30 2011-11-01 Qualcomm Incorporated Downconversion mixer with IM2 cancellation
DE102006029482A1 (de) * 2006-06-27 2008-01-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Empfänger und Verfahren zum Empfangen eines ersten Nutzfrequenzbandes und eines zweiten Nutzfrequenzbandes
DE102006029486A1 (de) * 2006-06-27 2008-01-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signalaufbereiter und Verfahren zum Verarbeiten eines Empfangssignals
US8295371B2 (en) * 2006-07-14 2012-10-23 Qualcomm Incorporated Multi-carrier receiver for wireless communication
GB2440187A (en) 2006-07-17 2008-01-23 Ubidyne Inc DUC and DDC forming digital transceiver
GB2440192B (en) * 2006-07-17 2011-05-04 Ubidyne Inc Antenna array system
JP4182448B2 (ja) * 2006-07-27 2008-11-19 ソニー株式会社 受信装置、受信方法、プログラム、並びに、記録媒体
US7656970B1 (en) * 2006-09-01 2010-02-02 Redpine Signals, Inc. Apparatus for a wireless communications system using signal energy to control sample resolution and rate
JP4304632B2 (ja) * 2006-10-12 2009-07-29 ソニー株式会社 受信装置、受信方法、プログラム、並びに、記録媒体
JP4514801B2 (ja) * 2008-01-22 2010-07-28 シャープ株式会社 放送受信装置
GB2490834B (en) * 2008-02-06 2013-05-29 Hmicro Inc Wireless communications systems using multiple radios
CN101420405B (zh) * 2008-12-09 2013-08-21 中国电子科技集团公司第五十四研究所 抗多径符号定时同步装置
US7916050B1 (en) * 2009-10-15 2011-03-29 Texas Instruments Incorporated Time-interleaved-dual channel ADC with mismatch compensation
US8532238B2 (en) * 2010-02-08 2013-09-10 Electronics And Telecommunications Research Institute Subsampling based receiver using frequency selective noise canceller
US8855254B2 (en) * 2010-03-05 2014-10-07 The Aerospace Corporation Systems and methods for pre-averaged staggered convolution decimating filters
US8489662B2 (en) * 2010-03-05 2013-07-16 The Aerospace Corporation Systems and methods for sliding convolution interpolating filters
EP2369301B1 (de) * 2010-03-23 2014-04-30 Micronas GmbH Sensorbaustein und Verfahren zur Funktionsüberwachung eines solchen
US20120128040A1 (en) 2010-11-23 2012-05-24 Peter Kenington Module for an Active Antenna System
KR101136969B1 (ko) * 2010-12-30 2012-04-19 전자부품연구원 대역통과 변조 장치
CN102904594A (zh) * 2011-07-29 2013-01-30 普天信息技术研究院有限公司 一种无线数传终端及其中频处理方法
US8625726B2 (en) * 2011-09-15 2014-01-07 The Boeing Company Low power radio frequency to digital receiver
US9184771B2 (en) 2011-10-12 2015-11-10 Optis Cellular Technology, Llc Digital down conversion and demodulation
CN103931114B (zh) * 2011-11-30 2017-03-01 株式会社日立制作所 无线通信系统、接收机、升降机控制系统以及变电设备控制系统
CN102706921B (zh) * 2012-06-13 2014-05-28 南京第四分析仪器有限公司 一种消除铸铁热分析曲线干扰的滤波方法
US9167174B1 (en) 2014-11-05 2015-10-20 Duelight Llc Systems and methods for high-dynamic range images
US8976264B2 (en) 2012-09-04 2015-03-10 Duelight Llc Color balance in digital photography
US9179062B1 (en) 2014-11-06 2015-11-03 Duelight Llc Systems and methods for performing operations on pixel data
US9167169B1 (en) 2014-11-05 2015-10-20 Duelight Llc Image sensor apparatus and method for simultaneously capturing multiple images
US9160936B1 (en) 2014-11-07 2015-10-13 Duelight Llc Systems and methods for generating a high-dynamic range (HDR) pixel stream
US9137455B1 (en) * 2014-11-05 2015-09-15 Duelight Llc Image sensor apparatus and method for obtaining multiple exposures with zero interframe time
US9179085B1 (en) 2014-11-06 2015-11-03 Duelight Llc Image sensor apparatus and method for obtaining low-noise, high-speed captures of a photographic scene
US9918017B2 (en) 2012-09-04 2018-03-13 Duelight Llc Image sensor apparatus and method for obtaining multiple exposures with zero interframe time
US9154708B1 (en) 2014-11-06 2015-10-06 Duelight Llc Image sensor apparatus and method for simultaneously capturing flash and ambient illuminated images
US9531961B2 (en) 2015-05-01 2016-12-27 Duelight Llc Systems and methods for generating a digital image using separate color and intensity data
US9807322B2 (en) 2013-03-15 2017-10-31 Duelight Llc Systems and methods for a digital image sensor
US9819849B1 (en) 2016-07-01 2017-11-14 Duelight Llc Systems and methods for capturing digital images
US10558848B2 (en) 2017-10-05 2020-02-11 Duelight Llc System, method, and computer program for capturing an image with correct skin tone exposure
US9438277B2 (en) * 2014-08-05 2016-09-06 The United States Of America, As Represented By The Secretary Of The Navy Intermediate frequency spectral placement of bandpass sampled signals
US10924688B2 (en) 2014-11-06 2021-02-16 Duelight Llc Image sensor apparatus and method for obtaining low-noise, high-speed captures of a photographic scene
US11463630B2 (en) 2014-11-07 2022-10-04 Duelight Llc Systems and methods for generating a high-dynamic range (HDR) pixel stream
US9998158B2 (en) 2015-05-27 2018-06-12 Finesse Wireless, Inc. Cancellation of spurious intermodulation products produced in nonlinear channels by frequency hopped signals and spurious signals
US9742426B2 (en) * 2015-12-15 2017-08-22 Analog Devices, Inc. Signal transfer function equalization in multi-stage delta-sigma analog-to-digital converters
CN109792478B (zh) 2016-09-01 2021-11-12 迪尤莱特公司 基于焦点目标信息调整焦点的装置和方法
CN112748429B (zh) * 2020-12-28 2023-09-08 中国人民解放军空军工程大学 一种快速噪声对消滤波方法
WO2024020140A1 (en) * 2022-07-22 2024-01-25 The Regents Of The University Of California Receiver architecture demodulating 4n-qam directly in analog domain without analog-to-digital converter (adc)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270027A (en) * 1979-11-28 1981-05-26 International Telephone And Telegraph Corporation Telephone subscriber line unit with sigma-delta digital to analog converter
FI80548C (fi) * 1988-11-09 1990-06-11 Nokia Oy Ab Foerfarande foer kaskadkoppling av tvao eller flera sigma-deltamodulatorer samt ett sigma-delta-modulatorsystem.
KR100219021B1 (ko) * 1990-04-06 1999-09-01 제이 엘. 차스킨, 버나드 스나이더, 아더엠. 킹 성분 감도가 낮은 오버샘플된 3차 시그마 델타 아날로그-디지탈 변환기 네트워크
US5283578A (en) * 1992-11-16 1994-02-01 General Electric Company Multistage bandpass Δ Σ modulators and analog-to-digital converters
US5454007A (en) * 1993-09-24 1995-09-26 Rockwell International Corporation Arrangement for and method of concurrent quadrature downconversion input sampling of a bandpass signal
US5442353A (en) * 1993-10-25 1995-08-15 Motorola, Inc. Bandpass sigma-delta analog-to-digital converter (ADC), method therefor, and receiver using same
US5442352A (en) * 1994-01-14 1995-08-15 Motorola, Inc. Linear attenuator for current-mode digital-to-analog converter (DAC) or the like
US5504455A (en) * 1995-05-16 1996-04-02 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Efficient digital quadrature demodulator

Also Published As

Publication number Publication date
KR100545492B1 (ko) 2006-01-24
AU758706B2 (en) 2003-03-27
BR9906807A (pt) 2001-10-23
JP4162851B2 (ja) 2008-10-08
CA2315758C (en) 2008-03-18
DE69924233D1 (de) 2005-04-21
CA2315758A1 (en) 1999-07-15
EP1046232A1 (en) 2000-10-25
CN1168215C (zh) 2004-09-22
CN1300467A (zh) 2001-06-20
EP1046232B1 (en) 2005-03-16
DE69924233T2 (de) 2006-03-30
WO1999035746A1 (en) 1999-07-15
KR20010033989A (ko) 2001-04-25
US6243430B1 (en) 2001-06-05
JP2002501319A (ja) 2002-01-15
NO20003499L (no) 2000-09-06
RU2233023C2 (ru) 2004-07-20
NO20003499D0 (no) 2000-07-07
ES2237906T3 (es) 2005-08-01
NO326664B1 (no) 2009-01-26
AU2315699A (en) 1999-07-26

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