BR9906807A - Circuito de cancelamento de ruìdo e conversor para recepção em quadratura - Google Patents

Circuito de cancelamento de ruìdo e conversor para recepção em quadratura

Info

Publication number
BR9906807A
BR9906807A BR9906807-9A BR9906807A BR9906807A BR 9906807 A BR9906807 A BR 9906807A BR 9906807 A BR9906807 A BR 9906807A BR 9906807 A BR9906807 A BR 9906807A
Authority
BR
Brazil
Prior art keywords
bandpass
decimalizer
samples
converter
noise cancellation
Prior art date
Application number
BR9906807-9A
Other languages
English (en)
Portuguese (pt)
Inventor
Lennart Karl-Axel Mathe
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 BR9906807A publication Critical patent/BR9906807A/pt

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
    • H03M3/30—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
    • H03M3/02—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
    • H03M3/39—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)
BR9906807-9A 1998-01-09 1999-01-11 Circuito de cancelamento de ruìdo e conversor para recepção em quadratura BR9906807A (pt)

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
BR9906807A true BR9906807A (pt) 2001-10-23

Family

ID=21715446

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9906807-9A BR9906807A (pt) 1998-01-09 1999-01-11 Circuito de cancelamento de ruìdo e conversor para recepção em quadratura

Country Status (14)

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

Families Citing this family (83)

* 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
EP1067674B1 (en) * 1999-06-30 2003-06-04 Motorola, Inc. Apparatus and method for receiving and processing a radio frequency signal
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
WO2001058029A1 (en) * 2000-02-04 2001-08-09 Koninklijke Philips Electronics N.V. Radio fm receiver
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
US20040213333A1 (en) * 2001-05-25 2004-10-28 Kaibin Huang 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
WO2003077529A2 (en) 2002-03-04 2003-09-18 Stmicroelectronics, N.V. Coder apparatus for resonant power conversion and method
US7924937B2 (en) 2002-03-04 2011-04-12 Stmicroelectronics N.V. Resonant power converter for radio frequency transmission and method
KR100454483B1 (ko) * 2002-03-04 2004-10-28 삼성전자주식회사 아이/큐 복조장치 및 그의 아이/큐 신호생성방법
US7173980B2 (en) * 2002-09-20 2007-02-06 Ditrans Ip, Inc. Complex-IF digital receiver
US7565170B2 (en) * 2002-12-24 2009-07-21 Telecom Italia 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
EP1578133B1 (en) * 2004-03-18 2007-08-15 STMicroelectronics S.r.l. Methods and systems for encoding/decoding signals, and computer program product therefor
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
WO2006075285A2 (en) * 2005-01-13 2006-07-20 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
DE102006029486A1 (de) * 2006-06-27 2008-01-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signalaufbereiter und Verfahren zum Verarbeiten eines Empfangssignals
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
US8295371B2 (en) * 2006-07-14 2012-10-23 Qualcomm Incorporated Multi-carrier receiver for wireless communication
GB2440192B (en) * 2006-07-17 2011-05-04 Ubidyne Inc Antenna array system
GB2440187A (en) 2006-07-17 2008-01-23 Ubidyne Inc DUC and DDC forming digital transceiver
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
US8879983B2 (en) * 2008-02-06 2014-11-04 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
JP5786035B2 (ja) * 2011-11-30 2015-09-30 株式会社日立製作所 無線通信システム、受信機、昇降機制御システムおよび変電設備制御システム
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
US8976264B2 (en) 2012-09-04 2015-03-10 Duelight Llc Color balance in digital photography
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
US9179062B1 (en) 2014-11-06 2015-11-03 Duelight Llc Systems and methods for performing operations on pixel data
US9137455B1 (en) * 2014-11-05 2015-09-15 Duelight Llc Image sensor apparatus and method for obtaining multiple exposures with zero interframe time
US9167174B1 (en) 2014-11-05 2015-10-20 Duelight Llc Systems and methods for high-dynamic range images
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
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
US12401911B2 (en) 2014-11-07 2025-08-26 Duelight Llc Systems and methods for generating a high-dynamic range (HDR) pixel stream
US12401912B2 (en) 2014-11-17 2025-08-26 Duelight Llc System and method for generating a digital image
US12445736B2 (en) 2015-05-01 2025-10-14 Duelight Llc Systems and methods for generating a digital image
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 (12)

* 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
SU1336234A1 (ru) * 1986-04-11 1987-09-07 Омский политехнический институт Устройство аналого-цифрового преобразовани узкополосных сигналов
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.
SU1714809A1 (ru) * 1989-06-27 1992-02-23 Житомирский филиал Научно-исследовательского института комплексной автоматизации Способ аналого-цифрового преобразовани с коррекцией результатов и устройство дл его осуществлени
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
RU2042269C1 (ru) * 1992-06-08 1995-08-20 Михаил Валерианович Зарубинский Устройство аналого-цифрового преобразования
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
US5982315A (en) * 1997-09-12 1999-11-09 Qualcomm Incorporated Multi-loop Σ Δ analog to digital converter

Also Published As

Publication number Publication date
AU2315699A (en) 1999-07-26
RU2233023C2 (ru) 2004-07-20
EP1046232A1 (en) 2000-10-25
CN1168215C (zh) 2004-09-22
ES2237906T3 (es) 2005-08-01
NO20003499D0 (no) 2000-07-07
KR20010033989A (ko) 2001-04-25
DE69924233D1 (de) 2005-04-21
JP2002501319A (ja) 2002-01-15
EP1046232B1 (en) 2005-03-16
KR100545492B1 (ko) 2006-01-24
JP4162851B2 (ja) 2008-10-08
AU758706B2 (en) 2003-03-27
IL136712A0 (en) 2001-06-14
DE69924233T2 (de) 2006-03-30
CA2315758A1 (en) 1999-07-15
WO1999035746A1 (en) 1999-07-15
NO20003499L (no) 2000-09-06
NO326664B1 (no) 2009-01-26
CA2315758C (en) 2008-03-18
CN1300467A (zh) 2001-06-20
US6243430B1 (en) 2001-06-05

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

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