HK1066948A1 - Compensation of mismatch between quadrature paths - Google Patents

Compensation of mismatch between quadrature paths

Info

Publication number
HK1066948A1
HK1066948A1 HK04107434A HK04107434A HK1066948A1 HK 1066948 A1 HK1066948 A1 HK 1066948A1 HK 04107434 A HK04107434 A HK 04107434A HK 04107434 A HK04107434 A HK 04107434A HK 1066948 A1 HK1066948 A1 HK 1066948A1
Authority
HK
Hong Kong
Prior art keywords
signal
mismatch
compensation
transfer function
quadrature paths
Prior art date
Application number
HK04107434A
Other languages
English (en)
Inventor
Heinz Lehning
Anil Gercekci
Sebastien Simoens
Original Assignee
Freescale Semiconductor 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 Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Publication of HK1066948A1 publication Critical patent/HK1066948A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0016—Stabilisation of local oscillators

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Error Detection And Correction (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
HK04107434A 2001-06-20 2004-09-25 Compensation of mismatch between quadrature paths HK1066948A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01401631A EP1271871A1 (de) 2001-06-20 2001-06-20 Ausgleich von Fehlanpassungen zwischen Quadraturpfaden
PCT/EP2002/006671 WO2003001758A1 (en) 2001-06-20 2002-06-17 Compensation of mismatch between quadrature paths

Publications (1)

Publication Number Publication Date
HK1066948A1 true HK1066948A1 (en) 2005-04-01

Family

ID=8182773

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04107434A HK1066948A1 (en) 2001-06-20 2004-09-25 Compensation of mismatch between quadrature paths

Country Status (6)

Country Link
US (1) US20050107059A1 (de)
EP (3) EP1271871A1 (de)
AT (1) ATE356501T1 (de)
DE (1) DE60218675T2 (de)
HK (1) HK1066948A1 (de)
WO (1) WO2003001758A1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10228757A1 (de) * 2002-06-27 2004-01-22 Infineon Technologies Ag Empfängeranordnung, insbesondere für den Mobilfunk
US7203222B1 (en) * 2002-08-14 2007-04-10 Qualcomm, Incorporated Multiplexed ADC for a transceiver
US7715836B2 (en) * 2002-09-03 2010-05-11 Broadcom Corporation Direct-conversion transceiver enabling digital calibration
US9065537B2 (en) * 2002-09-03 2015-06-23 Broadcom Corporation Method and system for calibrating a multi-mode, multi-standard transmitter and receiver
US7187916B2 (en) * 2003-02-07 2007-03-06 Broadcom Corporation Method and system for measuring receiver mixer IQ mismatch
TW200501611A (en) * 2003-03-12 2005-01-01 Koninkl Philips Electronics Nv Transceiver with mismatch compensation scheme
US7167682B1 (en) * 2004-02-02 2007-01-23 Litepoint Corporation Radio frequency (RF) transceiver with substantially coincident communication of RF and related control signals
US7333423B2 (en) * 2004-03-31 2008-02-19 Intel Corporation Transceiver with calibrated I and Q paths and methods for deconvolved calibration
KR101084134B1 (ko) 2005-05-03 2011-11-17 엘지전자 주식회사 이동통신 시스템에서, 제어 정보 전송 방법
KR101636016B1 (ko) * 2010-03-11 2016-07-05 삼성전자주식회사 신호 수신 장치 및 그것의 위상 부정합 보상 방법
JP5828215B2 (ja) * 2011-03-31 2015-12-02 ソニー株式会社 受信装置、受信方法、およびプログラム
US8971465B2 (en) 2012-03-30 2015-03-03 Qualcomm Incorporated Receiver-side estimation of and compensation for signal impairments
EP2712140B1 (de) 2012-09-21 2015-12-30 ST-Ericsson SA Prüfschleifenverfahren zur IQ-ungleichgewichtsschätzung für Kalibrierung in OFDM-Systemen
US9143365B2 (en) 2013-01-30 2015-09-22 Qualcomm Incorporated Channel estimation using averaging and interpolation
US8964816B2 (en) 2013-02-12 2015-02-24 Qualcomm Incorporated Re-configurable receiver architecture for cable transmission
TWI517605B (zh) * 2013-06-07 2016-01-11 晨星半導體股份有限公司 內建自我測試功能之信號處理系統、其測試方法以及測試訊號產生器
US9088471B1 (en) * 2014-02-19 2015-07-21 Qualcomm Incorporated Quadrature combining and adjusting
US9350589B2 (en) * 2014-08-21 2016-05-24 Qualcomm Incorporated Multi IQ-path synchronization
US9531428B2 (en) * 2015-03-03 2016-12-27 Mediatek Inc. Wireless communication calibration system and associated method
CN106033978B (zh) * 2015-03-19 2018-12-21 北京佰才邦技术有限公司 信号处理方法和装置
US10145937B2 (en) * 2016-04-01 2018-12-04 Texas Instruments Incorporated Dynamic IQ mismatch correction in FMCW radar
DE102016110344A1 (de) * 2016-06-03 2017-12-07 Infineon Technologies Ag Rf-empfänger mit eingebauter selbsttestfunktion
US10680794B2 (en) * 2018-07-22 2020-06-09 SiliconIntervention Inc. Sample rate conversion by Gaussian blur

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3471370B2 (ja) * 1991-07-05 2003-12-02 本田技研工業株式会社 能動振動制御装置
GB2272589B (en) * 1992-11-16 1995-11-29 Linear Modulation Tech Automatic calibration of the quadrature balance within a cartesian amplifier
US6697415B1 (en) * 1996-06-03 2004-02-24 Broadcom Corporation Spread spectrum transceiver module utilizing multiple mode transmission
US5978823A (en) * 1997-01-27 1999-11-02 Hitachi America, Ltd. Methods and apparatus for implementing and controlling a digital modulator
US6185280B1 (en) * 1998-02-12 2001-02-06 Intervoice Limited Partnership Line impedance matching using dynamically generated transfer functions
US6157235A (en) * 1999-06-01 2000-12-05 Motorola, Inc. Quadrature signal generator and method therefor
US6940916B1 (en) * 2000-01-27 2005-09-06 Pmc-Sierra, Inc. Wideband analog quadrature modulator/demodulator with pre-compensation/post-compensation correction
EP1130866B1 (de) * 2000-02-29 2003-09-10 Telefonaktiebolaget Lm Ericsson Korrektur von Quadratur- soweiVerstärkungsfehlern in Homodynempfängern
JP2001257627A (ja) * 2000-03-13 2001-09-21 Kawasaki Steel Corp 無線受信機
EP1183841B1 (de) * 2000-03-15 2004-02-04 Koninklijke Philips Electronics N.V. Ausgleich von fehlanpassungen in quadraturvorrichtungen
US6625424B1 (en) * 2000-03-21 2003-09-23 Koninklijke Philips Electronics N.V. Autocalibration of a transceiver through nulling of a DC-voltage in a receiver and injecting of DC-signals in a transmitter
US6741662B1 (en) * 2000-04-17 2004-05-25 Intel Corporation Transmitter linearization using fast predistortion
JP2003060485A (ja) * 2001-08-14 2003-02-28 Sony Corp 能動フィルタ回路
US7313198B2 (en) * 2002-03-12 2007-12-25 Motorola Inc. Self calibrating transmit path correction system
US7023929B2 (en) * 2002-07-10 2006-04-04 Texas Instruments Incorporated Digital pre-compensation filter for DMT type transmitter

Also Published As

Publication number Publication date
EP1402695B1 (de) 2007-03-07
EP1402695A1 (de) 2004-03-31
ATE356501T1 (de) 2007-03-15
DE60218675D1 (de) 2007-04-19
EP1511254A2 (de) 2005-03-02
WO2003001758A1 (en) 2003-01-03
EP1271871A1 (de) 2003-01-02
DE60218675T2 (de) 2007-06-28
EP1511254A3 (de) 2005-03-09
US20050107059A1 (en) 2005-05-19

Similar Documents

Publication Publication Date Title
HK1066948A1 (en) Compensation of mismatch between quadrature paths
WO2002003687A3 (en) Equipment and techniques for increasing the dynamic range of a projection system
WO2002009415A3 (en) Method and system for sharing images using a digital media frame
WO2004109755A3 (en) Signal interfacing techniques to simplify integrated circuit radio designs
WO2002027656A3 (en) Selective smoothing and sharpening of images by generalized unsharp masking
EP1401134A4 (de) Automatische verstärkungsregelschaltung und verfahren dafür und modulationsvorrichtung damit
IL203410A0 (en) Cdma system which uses pre-rotation before transmission
HK1045029A1 (zh) 預失真型失真補償設備
GB2293280A (en) A balun apparatus and method of designing same
EP1630972A3 (de) Kommunikationsendgerät
WO2008036311A3 (en) Direct link setup mechanisms for wireless lans
GB2407010A (en) Carrier frequency offset estimation in a wireless communication system
ATE435550T1 (de) Verfahren und vorrichtung zur vermittlung von sprachpaketen
EP0618687A3 (de) Phasenkorrektion für einen Funkempfänger auf der Basis einer Trainingsfolge.
TW200616371A (en) Receiver capable of correcting in-phase and quadrature-phase mismatch and method thereof
GB2407950B (en) Receiver for compensating nonlinearly distorted multicarrier signals
WO2005006574A3 (en) Method, apparatus and system for use in determining pilot-to-data power ratio in wireless communication
ATE244489T1 (de) Verfahren für die übermittlung von bilddaten
NO20010297D0 (no) Fremgangsmåte og apparat for datakommunikasjon
EP0993129A3 (de) Kanalschätzung in Raum-Zeit blockkodierter Sendeantennendiversität für WCDMA
WO2004095720A3 (en) Timing synchronization for m-dpsk channels
MXPA04004977A (es) Metodo y aparato para precompensacion de traslape de impulso en senales moduladas digitalmente.
CA2279710A1 (en) Method and device for demodulating receive signal including pilot signal
EP1202509A3 (de) Einstellungssignal für Einzelträgerübertragungn, sowie einstellung eines rekursiven Entzerrers
CA2425437A1 (en) Demodulation apparatus and method in a communication system employing 8-ary psk modulation

Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20100617