BR9710476A - Dispositivo receptor de r dio homÄdino processador de sinal e processo para compensar distor-Æo de segunda ordem em um receptor de r dio homÄdino - Google Patents

Dispositivo receptor de r dio homÄdino processador de sinal e processo para compensar distor-Æo de segunda ordem em um receptor de r dio homÄdino

Info

Publication number
BR9710476A
BR9710476A BR9710476A BR9710476A BR9710476A BR 9710476 A BR9710476 A BR 9710476A BR 9710476 A BR9710476 A BR 9710476A BR 9710476 A BR9710476 A BR 9710476A BR 9710476 A BR9710476 A BR 9710476A
Authority
BR
Brazil
Prior art keywords
radio receiver
homodyne radio
compensate
signal processor
order distortion
Prior art date
Application number
BR9710476A
Other languages
English (en)
Inventor
Paul W Dent
Original Assignee
Ericsson Inc Companhia America
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 Ericsson Inc Companhia America filed Critical Ericsson Inc Companhia America
Publication of BR9710476A publication Critical patent/BR9710476A/pt

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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Amplifiers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
BR9710476A 1996-07-18 1997-07-11 Dispositivo receptor de r dio homÄdino processador de sinal e processo para compensar distor-Æo de segunda ordem em um receptor de r dio homÄdino BR9710476A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/683,384 US5749051A (en) 1996-07-18 1996-07-18 Compensation for second order intermodulation in a homodyne receiver
PCT/US1997/011370 WO1998004050A1 (en) 1996-07-18 1997-07-11 Compensation for second order intermodulation in a homodyne receiver

Publications (1)

Publication Number Publication Date
BR9710476A true BR9710476A (pt) 1999-08-17

Family

ID=24743827

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9710476A BR9710476A (pt) 1996-07-18 1997-07-11 Dispositivo receptor de r dio homÄdino processador de sinal e processo para compensar distor-Æo de segunda ordem em um receptor de r dio homÄdino

Country Status (13)

Country Link
US (1) US5749051A (pt)
EP (1) EP0913036B1 (pt)
JP (1) JP2000515342A (pt)
KR (1) KR100452079B1 (pt)
CN (1) CN1105424C (pt)
AR (2) AR007702A1 (pt)
AU (1) AU723481B2 (pt)
BR (1) BR9710476A (pt)
DE (1) DE69707132T2 (pt)
EE (1) EE03987B1 (pt)
MY (1) MY116932A (pt)
PL (1) PL183787B1 (pt)
WO (1) WO1998004050A1 (pt)

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MY133723A (en) * 1999-09-17 2007-11-30 Ericsson Telefon Ab L M "apparatus and method for substantially eliminating a near-channel interfering amplitude modulated signal"
US6625236B1 (en) 2000-02-08 2003-09-23 Ericsson Inc. Methods and systems for decoding symbols by combining matched-filtered samples with hard symbol decisions
US6714775B1 (en) * 2000-02-24 2004-03-30 Veridian Engineering, Inc. Interference canceller
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US6856199B2 (en) 2000-10-10 2005-02-15 California Institute Of Technology Reconfigurable distributed active transformers
JP2005503679A (ja) 2000-10-10 2005-02-03 カリフォルニア・インスティテュート・オブ・テクノロジー 分布型環状電力増幅器の構造
US6845126B2 (en) * 2001-01-26 2005-01-18 Telefonaktiebolaget L.M. Ericsson (Publ) System and method for adaptive antenna impedance matching
US6961368B2 (en) * 2001-01-26 2005-11-01 Ericsson Inc. Adaptive antenna optimization network
US6535725B2 (en) * 2001-03-30 2003-03-18 Skyworks Solutions, Inc. Interference reduction for direct conversion receivers
WO2002084859A1 (en) * 2001-04-18 2002-10-24 Nokia Corporation Balanced circuit arrangement and method for linearizing such an arrangement
DE60111056T2 (de) * 2001-10-26 2006-05-04 Stmicroelectronics N.V. Direktmischempfänger für einem Kommunikationssystem mit nicht konstanter Hüllkurve
US7038733B2 (en) 2002-01-30 2006-05-02 Ericsson Inc. Television receivers and methods for processing signal sample streams synchronously with line/frame patterns
US7657241B2 (en) * 2002-02-01 2010-02-02 Qualcomm, Incorporated Distortion reduction calibration
TWI326967B (en) * 2002-03-11 2010-07-01 California Inst Of Techn Differential amplifier
FR2839165A1 (fr) * 2002-04-30 2003-10-31 Koninkl Philips Electronics Nv Appareil radioelectrique comportant un amplificateur pour signaux a radiofrequence, amplificateur pour signaux a radiofrequence et procede pour amplifier de tels signaux
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US7190740B2 (en) * 2002-08-19 2007-03-13 Siemens Communications, Inc. Arrangement for dynamic DC offset compensation
US7139542B2 (en) * 2003-03-03 2006-11-21 Nokia Corporation Method and apparatus for compensating DC level in an adaptive radio receiver
US7386291B2 (en) * 2003-09-02 2008-06-10 International Business Machines Corporation Integrated millimeter-wave quadrature generator
CN100373785C (zh) * 2003-12-12 2008-03-05 华为技术有限公司 射频接收通道增益校正系统及其方法
KR100598372B1 (ko) * 2004-01-08 2006-07-06 주식회사 팬택 이동통신 단말기의 아이피투 검교정시 상관계수 산출 방법
JP2006060456A (ja) * 2004-08-19 2006-03-02 Matsushita Electric Ind Co Ltd Ｄｃオフセットキャリブレーションシステム
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
US8218693B2 (en) * 2006-03-09 2012-07-10 Broadcom Corporation Gain control for wireless receiver
US8467473B2 (en) 2006-03-31 2013-06-18 Broadcom Corporation Power control techniques for wireless transmitters
KR101284943B1 (ko) * 2006-06-30 2013-07-10 엘지디스플레이 주식회사 몰드의 제조방법
US8290100B2 (en) * 2006-08-08 2012-10-16 Qualcomm Incorporated Interference detection and mitigation
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US7876867B2 (en) * 2006-08-08 2011-01-25 Qualcomm Incorporated Intermodulation distortion detection and mitigation
US8706055B2 (en) * 2007-03-23 2014-04-22 Qualcomm Incorporated Reduction of second-order distortion caused by transmit signal leakage
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US8032102B2 (en) * 2008-01-15 2011-10-04 Axiom Microdevices, Inc. Receiver second order intermodulation correction system and method
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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
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
US8090320B2 (en) * 2008-12-19 2012-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Strong signal tolerant OFDM receiver and receiving methods
JP5528431B2 (ja) * 2009-04-03 2014-06-25 パナソニック株式会社 ２次歪補正受信機及び２次歪補正方法
US8190102B2 (en) * 2009-05-19 2012-05-29 Broadcom Corporation Programmable antenna with configuration control and methods for use therewith
US20110065409A1 (en) * 2009-09-17 2011-03-17 Peter Kenington Frequency shifting based interference cancellation device and method
US8849227B2 (en) 2009-09-28 2014-09-30 The Trustees Of Columbia University In The City Of New York Systems and methods for controlling the second order intercept point of receivers
US8594603B2 (en) * 2009-11-08 2013-11-26 The Trustees Of Columbia University In The City Of New York Systems and methods for cancelling interferers in a receiver
US8320866B2 (en) * 2010-02-11 2012-11-27 Mediatek Singapore Pte. Ltd. Integrated circuits, communication units and methods of cancellation of intermodulation distortion
US9002310B2 (en) * 2010-09-28 2015-04-07 Intel Mobile Communications GmbH IP2 calibration methods and techniques
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GB2510997B (en) 2012-05-21 2014-11-05 Aceaxis Ltd Detection of Intermodulation Products in a Wireless Network
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US8942656B2 (en) 2013-03-15 2015-01-27 Blackberry Limited Reduction of second order distortion in real time
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US9197279B2 (en) 2013-03-15 2015-11-24 Blackberry Limited Estimation and reduction of second order distortion in real time
US8963608B1 (en) * 2014-05-01 2015-02-24 L-3 Communications Corp. Peak-to-peak average power ratio reduction and intermodulation distortion pre-suppression using open-loop signal processing
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US5241702A (en) * 1990-09-06 1993-08-31 Telefonaktiebolaget L M Ericsson D.c. offset compensation in a radio receiver
SE502599C2 (sv) * 1993-09-09 1995-11-20 Ericsson Ge Mobile Communicat Sätt och anordning vid en homodynmottagare för att minimera läckage av störsignaler
US5579347A (en) * 1994-12-28 1996-11-26 Telefonaktiebolaget Lm Ericsson Digitally compensated direct conversion receiver
US5614904A (en) * 1995-03-09 1997-03-25 Ericsson Inc. Balance companded delta conversion for homodyne receiver

Also Published As

Publication number Publication date
CN1105424C (zh) 2003-04-09
PL331251A1 (en) 1999-07-05
PL183787B1 (pl) 2002-07-31
JP2000515342A (ja) 2000-11-14
CN1230309A (zh) 1999-09-29
EP0913036A1 (en) 1999-05-06
MY116932A (en) 2004-04-30
EP0913036B1 (en) 2001-10-04
US5749051A (en) 1998-05-05
AR013258A2 (es) 2000-12-13
AU723481B2 (en) 2000-08-31
WO1998004050A1 (en) 1998-01-29
EE9900020A (et) 1999-08-16
KR100452079B1 (ko) 2004-10-12
KR20000067889A (ko) 2000-11-25
EE03987B1 (et) 2003-02-17
AU3586297A (en) 1998-02-10
AR007702A1 (es) 1999-11-10
DE69707132T2 (de) 2002-06-06
DE69707132D1 (de) 2001-11-08

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]
B08G Application fees: restoration [chapter 8.7 patent gazette]
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 11A ANUIDADE.

B08G Application fees: restoration [chapter 8.7 patent gazette]
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements