FI20002832A - System och förfarande för direktkonversionsystem, särskilt ett GPS-mottagaresystem med högpassfiltering - Google Patents

System och förfarande för direktkonversionsystem, särskilt ett GPS-mottagaresystem med högpassfiltering Download PDF

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Publication number
FI20002832A
FI20002832A FI20002832A FI20002832A FI20002832A FI 20002832 A FI20002832 A FI 20002832A FI 20002832 A FI20002832 A FI 20002832A FI 20002832 A FI20002832 A FI 20002832A FI 20002832 A FI20002832 A FI 20002832A
Authority
FI
Finland
Prior art keywords
frequency
direct conversion
centered
signals
conversion receiver
Prior art date
Application number
FI20002832A
Other languages
English (en)
Finnish (fi)
Other versions
FI20002832A0 (sv
FI113424B (sv
Inventor
Kalle Asikainen
Tomi-Pekka Takalo
Original Assignee
Nokia Corp
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 Nokia Corp filed Critical Nokia Corp
Priority to FI20002832A priority Critical patent/FI113424B/sv
Publication of FI20002832A0 publication Critical patent/FI20002832A0/sv
Priority to US10/023,559 priority patent/US7236762B2/en
Priority to EP01660241A priority patent/EP1220441B1/en
Priority to ES01660241T priority patent/ES2269334T3/es
Priority to DE60121716T priority patent/DE60121716T2/de
Priority to AT01660241T priority patent/ATE334503T1/de
Publication of FI20002832A publication Critical patent/FI20002832A/sv
Application granted granted Critical
Publication of FI113424B publication Critical patent/FI113424B/sv
Priority to US11/347,342 priority patent/US20060160519A1/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
FI20002832A 2000-12-22 2000-12-22 System och förfarande för direktkonversionmottagare, särskilt ett GPS-mottagaresystem med högpassfiltering FI113424B (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FI20002832A FI113424B (sv) 2000-12-22 2000-12-22 System och förfarande för direktkonversionmottagare, särskilt ett GPS-mottagaresystem med högpassfiltering
US10/023,559 US7236762B2 (en) 2000-12-22 2001-12-18 Direct-conversion receiver system and method, especially a GPS receiver system with high pass filtering
EP01660241A EP1220441B1 (en) 2000-12-22 2001-12-20 Direct-conversion receiver system and method, especially a GPS receiver system with high pass filtering
ES01660241T ES2269334T3 (es) 2000-12-22 2001-12-20 Sistema y procedimiento de recepcion de conversion directa, especialmente un sistema de recepcion gps con filtrado de paso alto.
DE60121716T DE60121716T2 (de) 2000-12-22 2001-12-20 Verfahren und System zur Direktkonvertierungsempfang , insbesonders eines GPS-Empfängersystem mit Hochpassfilterung
AT01660241T ATE334503T1 (de) 2000-12-22 2001-12-20 Verfahren und system zur direktkonvertierungsempfang , insbesonders eines gps-empfängersystem mit hochpassfilterung
US11/347,342 US20060160519A1 (en) 2000-12-22 2006-02-03 Direct-conversion receiver system and method, especially a GPS receiver system with high pass filtering

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20002832 2000-12-22
FI20002832A FI113424B (sv) 2000-12-22 2000-12-22 System och förfarande för direktkonversionmottagare, särskilt ett GPS-mottagaresystem med högpassfiltering

Publications (3)

Publication Number Publication Date
FI20002832A0 FI20002832A0 (sv) 2000-12-22
FI20002832A true FI20002832A (sv) 2002-06-23
FI113424B FI113424B (sv) 2004-04-15

Family

ID=8559792

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20002832A FI113424B (sv) 2000-12-22 2000-12-22 System och förfarande för direktkonversionmottagare, särskilt ett GPS-mottagaresystem med högpassfiltering

Country Status (6)

Country Link
US (2) US7236762B2 (sv)
EP (1) EP1220441B1 (sv)
AT (1) ATE334503T1 (sv)
DE (1) DE60121716T2 (sv)
ES (1) ES2269334T3 (sv)
FI (1) FI113424B (sv)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10251288B4 (de) * 2002-11-04 2005-08-11 Advanced Micro Devices, Inc., Sunnyvale Equalizerschaltung mit Kerbkompensation für einen Direktmischempfänger
US7167694B2 (en) 2003-04-14 2007-01-23 Silicon Laboratories Inc. Integrated multi-tuner satellite receiver architecture and associated method
US7340232B2 (en) * 2003-12-02 2008-03-04 Renesas Technology Corp. Receiving system and semiconductor integrated circuit device for processing wireless communication signal
JP3686074B1 (ja) * 2004-02-23 2005-08-24 シャープ株式会社 無線受信回路および無線携帯機器
US7272374B2 (en) * 2004-06-30 2007-09-18 Silicon Laboratories Inc. Dynamic selection of local oscillator signal injection for image rejection in integrated receivers
JP4735312B2 (ja) * 2006-02-14 2011-07-27 パナソニック株式会社 受信装置とこれを用いた電子機器
US20080076489A1 (en) * 2006-08-07 2008-03-27 Plantronics, Inc. Physically and electrically-separated, data-synchronized data sinks for wireless systems
CN101183923B (zh) * 2007-12-07 2011-03-09 中兴通讯股份有限公司 一种零中频方案指标优化的实现方法
CN101183922B (zh) * 2007-12-07 2011-03-09 中兴通讯股份有限公司 一种零中频方案中温度补偿的实现方法
CN101216544B (zh) * 2007-12-26 2010-10-06 西安华迅微电子有限公司 一种gps接收机集成射频芯片
US8380771B2 (en) * 2009-03-27 2013-02-19 Quellan, Inc. Filter shaping using a signal cancellation function
US20110263270A1 (en) * 2010-04-23 2011-10-27 Psion Teklogix Inc. Method and system for sharing a signal received by an antenna
US8958769B1 (en) * 2012-08-31 2015-02-17 Maxim Integrated Products, Inc. Direct conversion receiver for angle modulated signals
GB201907717D0 (en) * 2019-05-31 2019-07-17 Nordic Semiconductor Asa Apparatus and methods for dc-offset estimation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158330A (en) * 1984-04-30 1985-11-06 Philips Electronic Associated An afc system for a direct modulation fm data receiver
US4653117A (en) * 1985-11-18 1987-03-24 Motorola, Inc. Dual conversion FM receiver using phase locked direct conversion IF
US4944025A (en) * 1988-08-09 1990-07-24 At&E Corporation Direct conversion FM receiver with offset
US5079526A (en) * 1990-08-29 1992-01-07 Motorola, Inc. Frequency modulated synthesizer using low frequency offset mixed VCO
DE4236546C1 (de) * 1992-10-29 1994-05-05 Hagenuk Telecom Gmbh Homodynempfänger und Verfahren zur direkten Konvertierung
US5710998A (en) * 1995-12-19 1998-01-20 Motorola, Inc. Method and apparatus for improved zero intermediate frequency receiver latency
US6029058A (en) * 1996-07-19 2000-02-22 The Board Of Trustee Of The Leland Stanford Junior University Spectrum control for direct conversion radio frequency reception
US6160858A (en) * 1997-08-04 2000-12-12 Starlink, Inc. MSK signal processing in a GPS correlator channel
CN1118949C (zh) * 1997-11-07 2003-08-20 皇家菲利浦电子有限公司 无线通信设备
US6148047A (en) 1998-05-06 2000-11-14 Philips Electronics North America Corporation DC offset compensation for zero if quadrature demodulator
GB2347284B (en) 1999-02-22 2003-04-09 Nokia Mobile Phones Ltd FM receiver

Also Published As

Publication number Publication date
ATE334503T1 (de) 2006-08-15
EP1220441B1 (en) 2006-07-26
EP1220441A2 (en) 2002-07-03
ES2269334T3 (es) 2007-04-01
US7236762B2 (en) 2007-06-26
EP1220441A3 (en) 2003-11-05
FI20002832A0 (sv) 2000-12-22
US20020081990A1 (en) 2002-06-27
DE60121716T2 (de) 2007-08-23
DE60121716D1 (de) 2006-09-07
US20060160519A1 (en) 2006-07-20
FI113424B (sv) 2004-04-15

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