JP2008535388A5 - - Google Patents

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Publication number
JP2008535388A5
JP2008535388A5 JP2008504186A JP2008504186A JP2008535388A5 JP 2008535388 A5 JP2008535388 A5 JP 2008535388A5 JP 2008504186 A JP2008504186 A JP 2008504186A JP 2008504186 A JP2008504186 A JP 2008504186A JP 2008535388 A5 JP2008535388 A5 JP 2008535388A5
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JP
Japan
Prior art keywords
path
offset
feedback
signal
transmission path
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2008504186A
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English (en)
Japanese (ja)
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JP5238491B2 (ja
JP2008535388A (ja
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Priority claimed from US11/096,520 external-priority patent/US7369820B2/en
Application filed filed Critical
Publication of JP2008535388A publication Critical patent/JP2008535388A/ja
Publication of JP2008535388A5 publication Critical patent/JP2008535388A5/ja
Application granted granted Critical
Publication of JP5238491B2 publication Critical patent/JP5238491B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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JP2008504186A 2005-04-01 2006-03-24 送信基底帯域におけるｄｃオフセット補正のためのシステム及び方法 Expired - Fee Related JP5238491B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/096,520 2005-04-01
US11/096,520 US7369820B2 (en) 2005-04-01 2005-04-01 System and method for DC offset correction in transmit baseband
PCT/US2006/010739 WO2006107614A2 (en) 2005-04-01 2006-03-24 System and method for dc offset correction in transmit baseband

Publications (3)

Publication Number Publication Date
JP2008535388A JP2008535388A (ja) 2008-08-28
JP2008535388A5 true JP2008535388A5 (enExample) 2009-05-14
JP5238491B2 JP5238491B2 (ja) 2013-07-17

Family

ID=37071200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008504186A Expired - Fee Related JP5238491B2 (ja) 2005-04-01 2006-03-24 送信基底帯域におけるｄｃオフセット補正のためのシステム及び方法

Country Status (4)

Country Link
US (1) US7369820B2 (enExample)
EP (1) EP1869785B1 (enExample)
JP (1) JP5238491B2 (enExample)
WO (1) WO2006107614A2 (enExample)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8559559B2 (en) * 2002-06-20 2013-10-15 Qualcomm, Incorporated Method and apparatus for compensating DC offsets in communication systems
RU2005101209A (ru) * 2002-06-20 2005-08-27 Квэлкомм Инкорпорейтед (US) Смещения по постоянному току в системах связи
CA2562563A1 (en) * 2004-04-13 2005-10-27 Maxlinear, Inc. Method and apparatus for dc offset removal
EP1829228A1 (en) * 2004-10-12 2007-09-05 Maxlinear, Inc. A hybrid receiver architecture using upconversion followed by direct downconversion
CA2583654C (en) * 2004-10-12 2015-02-17 Maxlinear, Inc. A receiver architecture with digitally generated intermediate frequency
ATE543262T1 (de) * 2004-12-10 2012-02-15 Maxlinear Inc Empfängerarchitektur und mischer mit oberwellenunterdrückung
KR100735366B1 (ko) * 2005-08-23 2007-07-04 삼성전자주식회사 무선 송수신장치에서 자가 보상장치 및 방법
US8036622B2 (en) * 2005-09-28 2011-10-11 Qualcomm, Incorporated DC offset cancellation circuit for a receiver
KR100860670B1 (ko) * 2005-10-20 2008-09-26 삼성전자주식회사 무선 송수신장치에서 자가 보상방법
TWI311244B (en) * 2006-04-07 2009-06-21 Hon Hai Prec Ind Co Ltd System for cancelling dc offset
US7675983B2 (en) * 2006-04-14 2010-03-09 Freescale Semiconductor, Inc. Mitigation of DC distortion in OFDM receivers
EP2077008A4 (en) 2006-10-24 2012-01-04 Nokia Corp SEAMLESS HANDOVER OF FUNKAUSSTRAHLUNGEN
US7856048B1 (en) * 2006-11-20 2010-12-21 Marvell International, Ltd. On-chip IQ imbalance and LO leakage calibration for transceivers
US8189707B1 (en) * 2007-05-09 2012-05-29 Rf Micro Devices, Inc. DC offset correction of a radio frequency receiver used with a continuous transmission radio frequency signal
US8396173B2 (en) 2007-10-01 2013-03-12 Maxlinear, Inc. I/Q calibration techniques
WO2009108391A1 (en) 2008-02-28 2009-09-03 Peregrine Semiconductor Corporation Method and apparatus for use in digitally tuning a capacitor in an integrated circuit device
US8625539B2 (en) * 2008-10-08 2014-01-07 Blackberry Limited Method and system for supplemental channel request messages in a wireless network
US8073406B2 (en) * 2008-12-16 2011-12-06 Mediatek Inc. Amplitude modulation circuit in polar transmitter and method for calibrating amplitude offset in polar transmitter
KR20110036371A (ko) * 2009-10-01 2011-04-07 삼성전자주식회사 오디오 증폭기
JP4802283B2 (ja) * 2010-01-08 2011-10-26 株式会社エヌ・ティ・ティ・ドコモ 無線通信装置及び無線通信方法
US9130642B2 (en) * 2010-03-18 2015-09-08 Mediatek Inc. Frequency-selective circuit with mixer module implemented for controlling frequency response, and related signal processing apparatus and method
CN104380609B (zh) * 2012-06-28 2016-02-17 意法-爱立信有限公司 一种直流消除方法、装置和接收机
TWI473443B (zh) * 2012-07-12 2015-02-11 Issc Technologies Corp 具有補償直流偏移之直接轉換收發器與其操作方法
US10763977B2 (en) * 2015-03-09 2020-09-01 Sony Corporation Device and method for determining a DC component
US9780889B1 (en) * 2016-03-25 2017-10-03 QUALCOMM Incorporaeted Techniques for RF transceiver self-calibration
DE102016110344A1 (de) * 2016-06-03 2017-12-07 Infineon Technologies Ag Rf-empfänger mit eingebauter selbsttestfunktion
CN109923781B (zh) * 2016-11-02 2023-05-30 派赛公司 使用复制电路的失配检测
US10591627B2 (en) * 2016-11-08 2020-03-17 Frederick Energy Products, Llc Managing vehicle movement in aisles by use of magnetic vectors
US10305433B2 (en) 2017-02-28 2019-05-28 Psemi Corporation Power amplifier self-heating compensation circuit
US10056874B1 (en) 2017-02-28 2018-08-21 Psemi Corporation Power amplifier self-heating compensation circuit
JP2019114906A (ja) * 2017-12-22 2019-07-11 ルネサスエレクトロニクス株式会社 半導体装置及び半導体システム
CN114063699B (zh) * 2020-07-31 2022-11-25 星宸科技股份有限公司 直流失调校准系统及其方法
US11431379B1 (en) * 2021-03-31 2022-08-30 Teradyne, Inc. Front-end module
US11894866B2 (en) 2022-03-09 2024-02-06 Apple Inc. Split input amplifier for protection from DC offset
TWI839001B (zh) 2022-12-05 2024-04-11 立積電子股份有限公司 直流偏移校正裝置及其直流偏移校正方法
US12494853B2 (en) * 2022-12-19 2025-12-09 Nxp Usa, Inc. Polar transmitter calibration

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02294120A (ja) * 1989-05-09 1990-12-05 Sony Corp デジタル信号のｄｃオフセット除去回路
US5584059A (en) * 1993-06-30 1996-12-10 Motorola, Inc. DC offset reduction in a zero-if transmitter
US5675287A (en) * 1996-02-12 1997-10-07 Motorola, Inc. Digital DC correction circuit for a linear transmitter
US6385238B1 (en) * 1997-12-03 2002-05-07 Kabushiki Kaisha Toshiba Adaptive equalization and baseline wander correction circuit
US6434204B1 (en) * 1999-03-04 2002-08-13 Lucent Technologies Inc. Method and system for DC offset correction of a quadrature modulated RF signal
US6356217B1 (en) * 2000-02-29 2002-03-12 Motorola, Inc. Enhanced DC offset correction through bandwidth and clock speed selection
US6606483B1 (en) * 2000-10-10 2003-08-12 Motorola, Inc. Dual open and closed loop linear transmitter
US6407630B1 (en) * 2001-01-04 2002-06-18 Silicon Integrated Systems Corporation DC offset cancelling circuit applied in a variable gain amplifier
US6560447B2 (en) * 2001-03-05 2003-05-06 Motorola, Inc. DC offset correction scheme for wireless receivers
JP2002319989A (ja) * 2001-04-19 2002-10-31 Matsushita Electric Ind Co Ltd Ｄｃオフセット・位相補正装置及び無線通信装置
AU2002259094A1 (en) * 2001-04-30 2002-11-11 Nptest, Inc Voltage acquisition with open-loop charged-particle-beam probe system
US6941121B2 (en) * 2001-05-18 2005-09-06 Rf Micro Devices, Inc. Method for calibrating a DC offset cancellation level for direct conversion receivers
US7313198B2 (en) * 2002-03-12 2007-12-25 Motorola Inc. Self calibrating transmit path correction system
US7079595B2 (en) * 2002-04-29 2006-07-18 Broadcom Corporation Radio receiver having direct DC offset compensation
JP2005020119A (ja) * 2003-06-24 2005-01-20 Renesas Technology Corp 通信用半導体集積回路および無線通信システム並びにゲインおよびオフセットの調整方法
US20050020217A1 (en) * 2003-07-23 2005-01-27 Ramin Khoini-Poorfard Communication terminal with low carrier feedthrough and communication system using such a terminal
US7593707B2 (en) * 2004-11-01 2009-09-22 Broadcom Corp. Method and system for compensation of DC offset in an RF receiver
US7274232B2 (en) * 2005-03-17 2007-09-25 Realtek Semiconductor Corp. Variable delay clock synthesizer

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