IL156800A0 - Local oscillator leakage control in direct conversion processes - Google Patents

Local oscillator leakage control in direct conversion processes

Info

Publication number
IL156800A0
IL156800A0 IL15680002A IL15680002A IL156800A0 IL 156800 A0 IL156800 A0 IL 156800A0 IL 15680002 A IL15680002 A IL 15680002A IL 15680002 A IL15680002 A IL 15680002A IL 156800 A0 IL156800 A0 IL 156800A0
Authority
IL
Israel
Prior art keywords
frequency
signal
local oscillator
vco
direct conversion
Prior art date
Application number
IL15680002A
Other languages
English (en)
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
Priority claimed from US09/797,745 external-priority patent/US20020163391A1/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of IL156800A0 publication Critical patent/IL156800A0/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/008—Compensating DC offsets
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/009—Compensating quadrature phase or amplitude imbalances
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/14—Beverages

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transceivers (AREA)
  • Superheterodyne Receivers (AREA)
  • Noise Elimination (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transmitters (AREA)
  • Radio Relay Systems (AREA)
IL15680002A 2001-01-12 2002-01-10 Local oscillator leakage control in direct conversion processes IL156800A0 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US26171401P 2001-01-12 2001-01-12
US09/797,745 US20020163391A1 (en) 2001-03-01 2001-03-01 Local oscillator leakage control in direct conversion processes
US10/020,607 US6960962B2 (en) 2001-01-12 2001-12-10 Local oscillator leakage control in direct conversion processes
PCT/US2002/000888 WO2002056489A2 (en) 2001-01-12 2002-01-10 Local oscillator leakage control in direct conversion processes

Publications (1)

Publication Number Publication Date
IL156800A0 true IL156800A0 (en) 2004-02-08

Family

ID=26693639

Family Applications (1)

Application Number Title Priority Date Filing Date
IL15680002A IL156800A0 (en) 2001-01-12 2002-01-10 Local oscillator leakage control in direct conversion processes

Country Status (12)

Country Link
US (1) US6960962B2 (xx)
EP (1) EP1350333B8 (xx)
JP (1) JP2004536479A (xx)
CN (1) CN1284303C (xx)
AT (1) ATE381815T1 (xx)
AU (1) AU2002245251B2 (xx)
BR (1) BR0206415A (xx)
CA (1) CA2434048C (xx)
HK (1) HK1063390A1 (xx)
IL (1) IL156800A0 (xx)
MX (1) MXPA03006245A (xx)
WO (1) WO2002056489A2 (xx)

Families Citing this family (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10112575A1 (de) * 2001-03-15 2002-10-02 Siemens Ag Verfahren und Vorrichtung zur Erzeugung von Mobilfunksignalen
US7120390B2 (en) * 2001-03-21 2006-10-10 Agere Systems Inc. BLUETOOTH smart offset compensation
GB2374767B (en) * 2001-03-21 2005-04-13 Agere Syst Guardian Corp Bluetooth smart offset compensation
US7039382B2 (en) * 2001-05-15 2006-05-02 Broadcom Corporation DC offset calibration for a radio transceiver mixer
IL156269A0 (en) * 2001-10-13 2004-01-04 Samsung Electronics Co Ltd Mobile communication system having multi-band antenna
JP2003258662A (ja) * 2002-03-06 2003-09-12 Alps Electric Co Ltd ２周波数帯域共用コンバータユニット
US7373119B2 (en) * 2002-03-07 2008-05-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for analog-to-digital conversion
JP2003304168A (ja) * 2002-04-08 2003-10-24 Asahi Kasei Microsystems Kk 受信装置
WO2004015439A2 (en) * 2002-08-08 2004-02-19 Koninklijke Philips Electronics N.V. Improved mixers with a plurality of local oscillators and systems based thereon
US7053720B2 (en) * 2002-11-01 2006-05-30 Broadcom Corporation Configurable voltage controlled oscillator system and method including dividing forming a portion of two or more divider paths
US7027793B2 (en) * 2002-11-15 2006-04-11 Qualcomm Incorporated Direct conversion with variable amplitude LO signals
US7580395B2 (en) * 2002-11-29 2009-08-25 Intermec Ip Corp. Information gathering apparatus and method having multiple wireless communication options
KR100471156B1 (ko) * 2002-12-03 2005-03-10 삼성전기주식회사 주파수 분배방식을 이용한 광대역 주파수 발생 장치
AU2003302864A1 (en) * 2002-12-09 2004-06-30 Koninklijke Philips Electronics N.V. Phase/gain imbalance estimation or compensation
CA2415917A1 (en) * 2003-01-08 2004-07-08 Sirific Wireless Corporation Regenerative divider used for up-conversion and down conversion
DE10310771A1 (de) * 2003-03-12 2004-09-23 Infineon Technologies Ag Vorrichtung und Verfahren zum Steuern des Leistungsverbrauchs einer kombinierten UMTS/GSM/EDGE-Funkstation
EP1473845A1 (en) * 2003-04-29 2004-11-03 Sony Ericsson Mobile Communications AB Front end of a multi-standard two-channel direct-conversion quadrature receiver
US7299127B2 (en) * 2003-05-02 2007-11-20 Sony Corporation Shared oscillator for vehicle mirror display
EP1526669A4 (en) * 2003-06-16 2012-03-21 Panasonic Corp DIGITAL SIGNAL RECEIVER
US20050037807A1 (en) * 2003-06-26 2005-02-17 Michael Dove Interface device coupled to PC host via USB
US20050054310A1 (en) * 2003-09-10 2005-03-10 Sparks Stephen T. Heterodyne system
US20050163255A1 (en) * 2004-01-22 2005-07-28 Broadcom Corporation System and method for simplifying analog processing in a transmitter
US7508898B2 (en) * 2004-02-10 2009-03-24 Bitwave Semiconductor, Inc. Programmable radio transceiver
TWI373925B (en) * 2004-02-10 2012-10-01 Tridev Res L L C Tunable resonant circuit, tunable voltage controlled oscillator circuit, tunable low noise amplifier circuit and method of tuning a resonant circuit
US7978754B2 (en) * 2004-05-28 2011-07-12 Rambus Inc. Communication channel calibration with nonvolatile parameter store for recovery
US9602144B2 (en) * 2004-08-26 2017-03-21 Interdigital Technology Corporation Method and apparatus for processing multiple wireless communication services
EP1648093B1 (en) * 2004-10-15 2011-08-03 Broadcom Corporation Spur harmonic canceller for RF band clock
US7676201B2 (en) * 2004-11-08 2010-03-09 Agere Systems Inc. Selectable sideband transmission
US7551127B2 (en) * 2005-02-10 2009-06-23 Motorola, Inc. Reconfigurable downconverter for a multi-band positioning receiver
US7928807B2 (en) * 2005-09-16 2011-04-19 Qualcomm Incorporated Frequency synthesizer architecture for multi-band ultra-wideband system
US7949072B2 (en) * 2005-10-11 2011-05-24 St-Ericsson Sa Local oscillator with injection pulling suppression and spurious products filtering
US8050636B2 (en) * 2005-11-30 2011-11-01 Broadcom Corporation Apparatus and method for generating RF without harmonic interference
KR100727898B1 (ko) * 2006-01-06 2007-06-14 삼성전자주식회사 Ｒｆ 송수신기에서 주입-록킹된 직각 ｖｃｏ를 가지는주파수 합성 장치 및 방법
WO2007113733A2 (en) * 2006-03-30 2007-10-11 Nxp B.V. Self-calibrating mixer
US7881690B2 (en) * 2006-04-07 2011-02-01 Belair Networks Inc. System and method for zero intermediate frequency filtering of information communicated in wireless networks
US20090117859A1 (en) * 2006-04-07 2009-05-07 Belair Networks Inc. System and method for frequency offsetting of information communicated in mimo based wireless networks
US8254865B2 (en) 2006-04-07 2012-08-28 Belair Networks System and method for frequency offsetting of information communicated in MIMO-based wireless networks
JP2007288326A (ja) * 2006-04-13 2007-11-01 Sanyo Electric Co Ltd 発振制御装置、プログラム、及び選局装置
US7672645B2 (en) 2006-06-15 2010-03-02 Bitwave Semiconductor, Inc. Programmable transmitter architecture for non-constant and constant envelope modulation
US7792548B2 (en) * 2006-09-28 2010-09-07 Broadcom Corporation Multiple frequency antenna array for use with an RF transmitter or transceiver
CN101162910B (zh) * 2006-10-10 2011-09-21 北京六合万通微电子技术股份有限公司 本振泄漏自动消除装置和方法
US7598815B2 (en) * 2006-10-25 2009-10-06 Agere Systems Inc. Multiple frequency generator for quadrature amplitude modulated communications
US7869781B2 (en) * 2006-12-06 2011-01-11 Broadcom Corporation Method and system for mitigating the effects of pulling in multiple phase locked loops in multi-standard systems
CN101207399B (zh) * 2006-12-06 2014-06-04 美国博通公司 在发射器中控制电路的方法和系统
US8102953B2 (en) * 2006-12-06 2012-01-24 Broadcom Corporation Method and system for calibrating a plurality of modules in a communication system
US7831205B2 (en) * 2007-01-16 2010-11-09 Utah State University Methods and systems for wireless communication by magnetic induction
US7825871B2 (en) * 2007-03-19 2010-11-02 Broadcom Corporation Method and system for equalizing antenna circuit matching variations
US20090003503A1 (en) * 2007-06-29 2009-01-01 Rotem Banin Frequency detector for VCO band selection
US7941115B2 (en) * 2007-09-14 2011-05-10 Qualcomm Incorporated Mixer with high output power accuracy and low local oscillator leakage
US8095082B2 (en) * 2007-10-10 2012-01-10 Qualcomm, Incorporated Dual band radio frequency transmitter
GB0801523D0 (en) * 2008-01-28 2008-03-05 Cambridge Silicon Radio Ltd Integrated signal receiver
JP5084543B2 (ja) * 2008-02-12 2012-11-28 キヤノン株式会社 画像処理装置及び画像処理方法
US8059200B2 (en) * 2008-04-14 2011-11-15 National Semiconductor Corporation Video clock generator for multiple video formats
US8121558B2 (en) * 2008-05-12 2012-02-21 Texas Instruments Incorporated Local oscillator generator architecture using a wide tuning range oscillator
US7701299B2 (en) * 2008-06-16 2010-04-20 Phase Matrix, Inc. Low phase noise PLL synthesizer
US7825703B2 (en) * 2008-08-18 2010-11-02 Qualcomm Incorporated Divide-by-three quadrature frequency divider
JP5202213B2 (ja) * 2008-09-25 2013-06-05 パナソニック株式会社 周波数シンセサイザ及び無線送信装置
US8090327B2 (en) * 2008-12-02 2012-01-03 Broadcom Corporation Configurable baseband processing for receiver and transmitter and methods for use therewith
JP5221441B2 (ja) * 2009-04-24 2013-06-26 株式会社東芝 半導体集積回路
US8358728B2 (en) * 2011-01-07 2013-01-22 Qualcomm Incorporated Calibration of synthesizer phase using reference harmonic
DE102011008350A1 (de) * 2011-01-12 2012-07-26 Rohde & Schwarz Gmbh & Co. Kg Hochfrequenzgenerator mit geringem Phasenrauschen
EP2624462B1 (en) 2012-02-03 2017-07-12 Telefonaktiebolaget LM Ericsson (publ) Down-conversion circuit
US9275690B2 (en) 2012-05-30 2016-03-01 Tahoe Rf Semiconductor, Inc. Power management in an electronic system through reducing energy usage of a battery and/or controlling an output power of an amplifier thereof
US9509351B2 (en) 2012-07-27 2016-11-29 Tahoe Rf Semiconductor, Inc. Simultaneous accommodation of a low power signal and an interfering signal in a radio frequency (RF) receiver
CN102932021A (zh) * 2012-10-10 2013-02-13 中兴通讯股份有限公司 下变频装置及其实现方法、接收机
US9787415B2 (en) 2013-03-14 2017-10-10 Analog Devices, Inc. Transmitter LO leakage calibration scheme using loopback circuitry
US9780449B2 (en) 2013-03-15 2017-10-03 Integrated Device Technology, Inc. Phase shift based improved reference input frequency signal injection into a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation to reduce a phase-steering requirement during beamforming
US9184498B2 (en) 2013-03-15 2015-11-10 Gigoptix, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through fine control of a tunable frequency of a tank circuit of a VCO thereof
US9666942B2 (en) 2013-03-15 2017-05-30 Gigpeak, Inc. Adaptive transmit array for beam-steering
US9722310B2 (en) 2013-03-15 2017-08-01 Gigpeak, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through frequency multiplication
US9531070B2 (en) 2013-03-15 2016-12-27 Christopher T. Schiller Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through accommodating differential coupling between VCOs thereof
US9837714B2 (en) 2013-03-15 2017-12-05 Integrated Device Technology, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through a circular configuration thereof
US9716315B2 (en) 2013-03-15 2017-07-25 Gigpeak, Inc. Automatic high-resolution adaptive beam-steering
CN104378082B (zh) 2013-08-12 2017-11-07 瑞昱半导体股份有限公司 振荡频率偏移侦测方法以及振荡频率偏移侦测电路
US9088471B1 (en) 2014-02-19 2015-07-21 Qualcomm Incorporated Quadrature combining and adjusting
US9712176B1 (en) * 2016-06-10 2017-07-18 Silicon Laboratories Inc. Apparatus for low power signal generator and associated methods
US11012104B2 (en) 2017-03-03 2021-05-18 Analog Devices, Inc. Apparatus and methods for calibrating radio frequency transmitters to compensate for common mode local oscillator leakage
EP3376666A1 (fr) * 2017-03-14 2018-09-19 STMicroelectronics (ALPS) SAS Dispositif d'oscillateur local à faible consommation
CN106908809B (zh) * 2017-03-31 2020-04-10 广州海格通信集团股份有限公司 卫星系统的抗干扰天线
US10382087B1 (en) * 2018-12-14 2019-08-13 Texas Instruments Incorporated Adaptation of zero intermediate frequency (ZIF) transmitter to correct local oscillator (LO) leakage
US11018840B2 (en) * 2019-01-17 2021-05-25 Analog Devices International Unlimited Company Single local oscillator in a multi-band frequency division duplex transceiver
CN112019232B (zh) * 2020-02-28 2023-01-31 加特兰微电子科技(上海)有限公司 信号发收装置、电子器件和设备
US11533076B1 (en) * 2021-09-30 2022-12-20 Shenzhen GOODIX Technology Co., Ltd. Phase based distance estimation with non-zero intermediate frequency

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307029A (en) * 1992-07-10 1994-04-26 Hughes Aircraft Company Method and apparatus for generating multiple frequency tones using a digital frequency divider
FI112133B (fi) 1996-03-29 2003-10-31 Nokia Corp Menetelmä kahdella eri taajuuusalueella toimivan radioviestinjärjestelmän suoramuunnoslähetin/vastaanottimen taajuuksien muodostamiseksi ja kahdella taajuusalueella toimivan radioviestinjärjestelmänsuoramuunnoslähetin/vastaanotin sekä edellisten käyttö matkaviestimessä
US6009312A (en) 1997-02-05 1999-12-28 Ericsson Inc. Transmit signal generation with the aid of a receiver
FI112741B (fi) 1998-11-26 2003-12-31 Nokia Corp Menetelmä ja järjestely RF-signaalien lähettämiseksi ja vastaanottamiseksi tiedonsiirtojärjestelmien erilaisissa radiorajapinnoissa
US6658237B1 (en) 1999-03-02 2003-12-02 Skyworks Solutions, Inc. Multi-Band transceiver utilizing direct conversion receiver

Also Published As

Publication number Publication date
EP1350333A2 (en) 2003-10-08
CA2434048A1 (en) 2002-07-18
AU2002245251B2 (en) 2007-02-08
EP1350333B8 (en) 2008-04-16
US6960962B2 (en) 2005-11-01
WO2002056489A3 (en) 2003-02-27
HK1063390A1 (en) 2004-12-24
BR0206415A (pt) 2004-10-19
JP2004536479A (ja) 2004-12-02
CN1484891A (zh) 2004-03-24
EP1350333B1 (en) 2007-12-19
MXPA03006245A (es) 2004-06-25
WO2002056489A2 (en) 2002-07-18
US20030040292A1 (en) 2003-02-27
CA2434048C (en) 2011-01-04
ATE381815T1 (de) 2008-01-15
CN1284303C (zh) 2006-11-08

Similar Documents

Publication Publication Date Title
EP1350333B8 (en) Local oscillator leakage control in direct conversion processes
CA2127366C (en) Frequency control system
US5898230A (en) Motor vehicle with a central locking unit and a remote control for its operation
TW374271B (en) GFSK radio frequency transceiver of ISM band
WO2003001692A3 (en) Low leakage local oscillator system
CA2109530A1 (en) Frequency diversity transmitter and receiver system
CA2380923A1 (en) Method and apparatus for multiple band voltage controlled oscillator with noise immunity
MXPA04007180A (es) Transceptor que utiliza un mezclador para rechazo de armonicas.
CA2315489A1 (en) Radio communication apparatus and radio communication method
AU2003255865A1 (en) Improved mixers with a plurality of local oscillators and systems based thereon
EP1217756A3 (en) Multiband portable radio terminal
EP0905917A3 (en) Multimode wireless communication system
AU7472500A (en) Apparatus for doppler correction in a wireless communications system
TW351884B (en) Mobile communication terminal having an initial frequency acquisition mechanism
WO2004021579A3 (en) Wireless transmitter incorporating a synchronous oscillator in a translation loop
WO2002003558A3 (de) Empfangseinrichtung, insbesondere für den mobilfunk
WO2002067413A3 (en) Transmitter and receiver circuit for radio frequency
CA2122735A1 (en) Oscillator Frequency Divide-Down Transmit Offset Scheme for Reducing Self-Quieting
WO2002056490A3 (en) Direct conversion digital domain control
AU2001293686A1 (en) Hearing aid with a radio frequency receiver
AU4233497A (en) Frequency conversion circuit and method for millimeter wave radio
KR970072778A (ko) 무선통신장치의 주파수 발생장치
SE0003872D0 (sv) A frequency synthesizer and a method for synthesizing a frequency
JPH05300048A (ja) 無線周波送受信機およびその動作方法
US20060217077A1 (en) Radio frequency device with null or quasi-null intermediate frequency minimizing interfering frequency modulation applied to an integrated local oscillator