EE200000567A - Otsemuundusvastuvõtja moonutuste korrektsiooniskeem - Google Patents

Otsemuundusvastuvõtja moonutuste korrektsiooniskeem

Info

Publication number
EE200000567A
EE200000567A EEP200000567A EEP200000567A EE200000567A EE 200000567 A EE200000567 A EE 200000567A EE P200000567 A EEP200000567 A EE P200000567A EE P200000567 A EEP200000567 A EE P200000567A EE 200000567 A EE200000567 A EE 200000567A
Authority
EE
Estonia
Prior art keywords
signal
distortion
direct conversion
conversion receiver
path
Prior art date
Application number
EEP200000567A
Other languages
English (en)
Inventor
Faulkner Michael
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
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 Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Publication of EE200000567A publication Critical patent/EE200000567A/et

Links

Classifications

    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
    • 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
    • H04B1/30—Circuits for homodyne or synchrodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Superheterodyne Receivers (AREA)
  • Amplifiers (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
EEP200000567A 1998-03-27 1999-03-29 Otsemuundusvastuvõtja moonutuste korrektsiooniskeem EE200000567A (et)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPP2618A AUPP261898A0 (en) 1998-03-27 1998-03-27 Dc offset and im2 removal in direct conversion receivers
PCT/AU1999/000226 WO1999050966A1 (en) 1998-03-27 1999-03-29 Distortion correction circuit for direct conversion receiver

Publications (1)

Publication Number Publication Date
EE200000567A true EE200000567A (et) 2002-02-15

Family

ID=3806879

Family Applications (1)

Application Number Title Priority Date Filing Date
EEP200000567A EE200000567A (et) 1998-03-27 1999-03-29 Otsemuundusvastuvõtja moonutuste korrektsiooniskeem

Country Status (13)

Country Link
US (1) US6606484B1 (et)
EP (1) EP1064729B1 (et)
JP (1) JP4195193B2 (et)
KR (1) KR100537418B1 (et)
CN (1) CN1158780C (et)
AT (1) ATE298474T1 (et)
AU (2) AUPP261898A0 (et)
BR (1) BR9909178A (et)
DE (1) DE69925902D1 (et)
EE (1) EE200000567A (et)
HK (1) HK1039224B (et)
IL (1) IL138614A (et)
WO (1) WO1999050966A1 (et)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1192498C (zh) * 1999-03-01 2005-03-09 三菱电机株式会社 收发信装置
JP2002009655A (ja) * 2000-06-23 2002-01-11 Communication Research Laboratory 双方向無線通信システム及び双方向無線通信方法
US6785529B2 (en) * 2002-01-24 2004-08-31 Qualcomm Incorporated System and method for I-Q mismatch compensation in a low IF or zero IF receiver
US7657241B2 (en) 2002-02-01 2010-02-02 Qualcomm, Incorporated Distortion reduction calibration
EP3032755A1 (en) * 2002-06-07 2016-06-15 InterDigital Technology Corporation System and method for a direct conversion multi-carrier processor
KR100790858B1 (ko) * 2002-09-04 2008-01-02 삼성전자주식회사 시공유 ｉ 채널 및 ｑ 채널을 가진 직접변환 수신기 및수신방법
DE602004027374D1 (de) * 2003-06-04 2010-07-08 St Ericsson Sa Rektkonversionsempfänger
KR100544777B1 (ko) * 2004-04-07 2006-01-23 삼성탈레스 주식회사 Ｉ／ｑ 부정합 보상 방법 및 장치
US20060234664A1 (en) * 2005-01-13 2006-10-19 Mediatek Incorporation Calibration method for suppressing second order distortion
US8050649B2 (en) * 2005-08-30 2011-11-01 Qualcomm Incorporated Downconversion mixer with IM2 cancellation
US7949323B1 (en) * 2006-02-24 2011-05-24 Texas Instruments Incorporated Local oscillator leakage counterbalancing in a receiver
US7876867B2 (en) * 2006-08-08 2011-01-25 Qualcomm Incorporated Intermodulation distortion detection and mitigation
US8290100B2 (en) 2006-08-08 2012-10-16 Qualcomm Incorporated Interference detection and mitigation
TW200816661A (en) * 2006-09-25 2008-04-01 Alcor Micro Corp Method for I/Q signal adjustment
FI20075275A0 (fi) 2007-04-19 2007-04-19 Nokia Corp RF-transkonduktanssituloaste
US8032102B2 (en) * 2008-01-15 2011-10-04 Axiom Microdevices, Inc. Receiver second order intermodulation correction system and method
US8081929B2 (en) * 2008-06-05 2011-12-20 Broadcom Corporation Method and system for optimal frequency planning for an integrated communication system with multiple receivers
US8055234B2 (en) * 2008-06-27 2011-11-08 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for suppressing strong-signal interference in low-IF receivers
US7995973B2 (en) * 2008-12-19 2011-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Own transmitter interference tolerant transceiver and receiving methods
US8855580B2 (en) * 2008-06-27 2014-10-07 Telefonaktiebolaget L M Ericsson (Publ) Methods and apparatus for reducing own-transmitter interference in low-IF and zero-IF receivers
US8090320B2 (en) * 2008-12-19 2012-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Strong signal tolerant OFDM receiver and receiving methods
JP5334318B2 (ja) * 2009-11-30 2013-11-06 ルネサスエレクトロニクス株式会社 通信用半導体集積回路およびその動作方法
US8237500B1 (en) 2011-03-22 2012-08-07 Sioma Edward M Signal correction circuit for reducing errors and distortions and its associated method of operation
EP2595322A1 (en) * 2011-11-18 2013-05-22 Stichting IMEC Nederland Interference rejection in a low power transmitter
US8817925B2 (en) * 2012-03-16 2014-08-26 Qualcomm Incorporated System and method for RF spur cancellation
CN109495421B (zh) * 2017-09-13 2021-04-30 深圳市中兴微电子技术有限公司 一种同相分量正交分量失配补偿装置及方法
US10425182B2 (en) * 2017-09-29 2019-09-24 Futurewei Technologies, Inc. Inter-band distortion and interference mitigation within communication systems
US11784731B2 (en) * 2021-03-09 2023-10-10 Apple Inc. Multi-phase-level signaling to improve data bandwidth over lossy channels
CN114650073B (zh) * 2022-04-15 2023-05-16 成都信息工程大学 一种射频接收机的线性化校正方法及装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561113A (en) * 1983-04-09 1985-12-24 Trio Kabushiki Kaisha Distortion canceller for FM receiver
JPS6042906A (ja) * 1983-08-19 1985-03-07 Pioneer Electronic Corp クオドラチユア検波器
US4926132A (en) * 1989-08-28 1990-05-15 Motorola Inc. FM detector with reduced distortion
EP0473373A3 (en) * 1990-08-24 1993-03-03 Rockwell International Corporation Calibration system for direct conversion receiver
US5230099A (en) * 1991-01-24 1993-07-20 Rockwell International Corporation System for controlling phase and gain errors in an i/q direct conversion receiver
DE4235834C2 (de) * 1992-10-23 1994-11-17 Baeumer Michael Vorrichtung zur Behandlung von Abwässern
US5604929A (en) * 1995-04-21 1997-02-18 Rockwell International System for correcting quadrature gain and phase errors in a direct conversion single sideband receiver independent of the character of the modulated signal
JP3316723B2 (ja) * 1995-04-28 2002-08-19 三菱電機株式会社 受信装置の補償方法・受信装置及び送受信装置
FI961935A (fi) * 1996-05-07 1997-11-08 Nokia Mobile Phones Ltd Erojännitteen eliminointi ja AM-vaimennus suoramuunnosvastaanottimessa
US5898912A (en) * 1996-07-01 1999-04-27 Motorola, Inc. Direct current (DC) offset compensation method and apparatus
US6516187B1 (en) * 1998-03-13 2003-02-04 Maxim Integrated Products, Inc. DC offset correction for direct conversion tuner IC
US6370205B1 (en) * 1999-07-02 2002-04-09 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for performing DC-offset compensation in a radio receiver
US6459889B1 (en) * 2000-02-29 2002-10-01 Motorola, Inc. DC offset correction loop for radio receiver

Also Published As

Publication number Publication date
US6606484B1 (en) 2003-08-12
EP1064729A1 (en) 2001-01-03
IL138614A0 (en) 2001-10-31
JP2002510892A (ja) 2002-04-09
CN1309840A (zh) 2001-08-22
EP1064729A4 (en) 2002-10-24
ATE298474T1 (de) 2005-07-15
KR20010071126A (ko) 2001-07-28
EP1064729B1 (en) 2005-06-22
IL138614A (en) 2005-09-25
WO1999050966A1 (en) 1999-10-07
AUPP261898A0 (en) 1998-04-23
CN1158780C (zh) 2004-07-21
HK1039224B (zh) 2005-04-22
HK1039224A1 (en) 2002-04-12
JP4195193B2 (ja) 2008-12-10
BR9909178A (pt) 2000-12-05
AU3128399A (en) 1999-10-18
KR100537418B1 (ko) 2005-12-19
DE69925902D1 (de) 2005-07-28

Similar Documents

Publication Publication Date Title
EE200000567A (et) Otsemuundusvastuvõtja moonutuste korrektsiooniskeem
ATE300119T1 (de) Direktkonversionsempfänger
US5862181A (en) Transmitting receiving apparatus
CA2386477A1 (en) Feedback compensation detector for a direct conversion transmitter
JPH10513616A (ja) デジタル的に補償されたダイレクトコンバージョン受信機
PL352548A1 (en) Automatic gain control for slotted mode operation
EP1821418A3 (en) Radio communication apparatus and radio communication method
EP0845871A3 (en) Intermediate frequency amplifier circuit for use in receive and transmit mode
HK1027694A1 (en) Method for digital signing of a message
PL348027A1 (en) Radio communications unit
GB0005592D0 (en) Method of and a radio terminal for detecting the presence of a 2fsk signal
JP3970177B2 (ja) 無線通信装置
CA2102735C (en) Apparatus for adjusting the efficiency of electric power amplification
EP1187412A3 (en) Carrier frequency recovery in CDMA receivers
JP2003333116A (ja) ダイレクトコンバージョン受信機
EP1150436A3 (en) Method and arrangement for receiving a frequency modulated signal
WO2003049276A1 (fr) Demodulateur et recepteur le mettant en application
TW431077B (en) Apparatus for suppressing interfering DC component shifts in a radio receiver of the direct conversion type, and a corresponding method of suppression
GB2347285B (en) Method and apparatus for frequency synchronisation in a digital radio communications system
JP2000196489A (ja) 送信機
JPH0834448B2 (ja) デユプレツクス送受信機
MY119808A (en) Two-way radio with improved squelch
JPS58141037A (ja) 送受信装置
JPH11341088A (ja) 受信装置