DE60224162D1 - Reduktion vom lecksignal eines lokaloszillators in einem direktkonversionsverfahren - Google Patents

Reduktion vom lecksignal eines lokaloszillators in einem direktkonversionsverfahren

Info

Publication number
DE60224162D1
DE60224162D1 DE60224162T DE60224162T DE60224162D1 DE 60224162 D1 DE60224162 D1 DE 60224162D1 DE 60224162 T DE60224162 T DE 60224162T DE 60224162 T DE60224162 T DE 60224162T DE 60224162 D1 DE60224162 D1 DE 60224162D1
Authority
DE
Germany
Prior art keywords
localoscillator
reduction
conversion process
direct conversion
leak signal
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.)
Expired - Lifetime
Application number
DE60224162T
Other languages
English (en)
Other versions
DE60224162T2 (de
Inventor
Paul E Peterzell
David Maldonado
Kevin Gard
Puay Hoe Andrew See
Jeremy D Dunworth
Kamal Sahota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
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 US09/797,045 external-priority patent/US6793826B1/en
Priority claimed from US10/020,607 external-priority patent/US6960962B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of DE60224162D1 publication Critical patent/DE60224162D1/de
Publication of DE60224162T2 publication Critical patent/DE60224162T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B1/16—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
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Superheterodyne Receivers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
DE60224162T 2001-01-12 2002-01-10 Reduktion vom lecksignal eines lokaloszillators in einem direktkonversionsverfahren Expired - Lifetime DE60224162T2 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US26171401P 2001-01-12 2001-01-12
US261714P 2001-01-12
US09/797,045 US6793826B1 (en) 2000-03-01 2001-03-01 Method for recovering insoluble solids from a mixture
US797045 2001-03-01
US20607 2001-12-10
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 (2)

Publication Number Publication Date
DE60224162D1 true DE60224162D1 (de) 2008-01-31
DE60224162T2 DE60224162T2 (de) 2008-12-04

Family

ID=39917685

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60224162T Expired - Lifetime DE60224162T2 (de) 2001-01-12 2002-01-10 Reduktion vom lecksignal eines lokaloszillators in einem direktkonversionsverfahren

Country Status (4)

Country Link
JP (1) JP4358890B2 (de)
KR (1) KR100818382B1 (de)
DE (1) DE60224162T2 (de)
IL (1) IL156800A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113114301A (zh) * 2021-05-19 2021-07-13 扬州万方电子技术有限责任公司 一种跳频通信设备接收机灵敏度的测量系统及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
KR100818382B1 (ko) 2008-04-01
KR20030077575A (ko) 2003-10-01
JP2008306759A (ja) 2008-12-18
DE60224162T2 (de) 2008-12-04
IL156800A (en) 2010-11-30
JP4358890B2 (ja) 2009-11-04

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Legal Events

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8364 No opposition during term of opposition