WO1999035746A1 - Noise cancellation circuit and quadrature downconverter - Google Patents

Noise cancellation circuit and quadrature downconverter Download PDF

Info

Publication number
WO1999035746A1
WO1999035746A1 PCT/US1999/000580 US9900580W WO9935746A1 WO 1999035746 A1 WO1999035746 A1 WO 1999035746A1 US 9900580 W US9900580 W US 9900580W WO 9935746 A1 WO9935746 A1 WO 9935746A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
bandpass
decimator
adc
cancellation circuit
Prior art date
Application number
PCT/US1999/000580
Other languages
English (en)
French (fr)
Inventor
Lennart Karl-Axel Mathe
Original Assignee
Qualcomm Incorporated
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 Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to AU23156/99A priority Critical patent/AU758706B2/en
Priority to JP2000528017A priority patent/JP4162851B2/ja
Priority to BR9906807-9A priority patent/BR9906807A/pt
Priority to EP99903040A priority patent/EP1046232B1/en
Priority to KR1020007007582A priority patent/KR100545492B1/ko
Priority to IL13671299A priority patent/IL136712A0/xx
Priority to CA002315758A priority patent/CA2315758C/en
Priority to DE69924233T priority patent/DE69924233T2/de
Publication of WO1999035746A1 publication Critical patent/WO1999035746A1/en
Priority to NO20003499A priority patent/NO326664B1/no

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/322—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M3/324—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by means or methods for compensating or preventing more than one type of error at a time, e.g. by synchronisation or using a ratiometric arrangement
    • H03M3/344—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by means or methods for compensating or preventing more than one type of error at a time, e.g. by synchronisation or using a ratiometric arrangement by filtering other than the noise-shaping inherent to delta-sigma modulators, e.g. anti-aliasing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/402—Arrangements specific to bandpass modulators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/414—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type
    • H03M3/418—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type all these quantisers being single bit quantisers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/462—Details relating to the decimation process

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Noise Elimination (AREA)
  • Analogue/Digital Conversion (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
PCT/US1999/000580 1998-01-09 1999-01-11 Noise cancellation circuit and quadrature downconverter WO1999035746A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
AU23156/99A AU758706B2 (en) 1998-01-09 1999-01-11 Noise cancellation circuit and quadrature downconverter
JP2000528017A JP4162851B2 (ja) 1998-01-09 1999-01-11 雑音キャンセル回路及び直交ダウンコンバータ
BR9906807-9A BR9906807A (pt) 1998-01-09 1999-01-11 Circuito de cancelamento de ruìdo e conversor para recepção em quadratura
EP99903040A EP1046232B1 (en) 1998-01-09 1999-01-11 Noise cancellation circuit and quadrature downconverter
KR1020007007582A KR100545492B1 (ko) 1998-01-09 1999-01-11 잡음 소거 회로 및 직교 다운컨버터
IL13671299A IL136712A0 (en) 1998-01-09 1999-01-11 Noise cancellation circuit and quadrature downconverter
CA002315758A CA2315758C (en) 1998-01-09 1999-01-11 Noise cancellation circuit and quadrature downconverter
DE69924233T DE69924233T2 (de) 1998-01-09 1999-01-11 Rauschunterdrückungschaltung und quadatur- abwärtsumsetzer
NO20003499A NO326664B1 (no) 1998-01-09 2000-07-07 Stoykanselleringskrets og nedtransponeringstrinn med fasekvadratur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/005,355 US6243430B1 (en) 1998-01-09 1998-01-09 Noise cancellation circuit in a quadrature downconverter
US09/005,355 1998-01-09

Publications (1)

Publication Number Publication Date
WO1999035746A1 true WO1999035746A1 (en) 1999-07-15

Family

ID=21715446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/000580 WO1999035746A1 (en) 1998-01-09 1999-01-11 Noise cancellation circuit and quadrature downconverter

Country Status (14)

Country Link
US (1) US6243430B1 (US06243430-20010605-M00001.png)
EP (1) EP1046232B1 (US06243430-20010605-M00001.png)
JP (1) JP4162851B2 (US06243430-20010605-M00001.png)
KR (1) KR100545492B1 (US06243430-20010605-M00001.png)
CN (1) CN1168215C (US06243430-20010605-M00001.png)
AU (1) AU758706B2 (US06243430-20010605-M00001.png)
BR (1) BR9906807A (US06243430-20010605-M00001.png)
CA (1) CA2315758C (US06243430-20010605-M00001.png)
DE (1) DE69924233T2 (US06243430-20010605-M00001.png)
ES (1) ES2237906T3 (US06243430-20010605-M00001.png)
IL (1) IL136712A0 (US06243430-20010605-M00001.png)
NO (1) NO326664B1 (US06243430-20010605-M00001.png)
RU (1) RU2233023C2 (US06243430-20010605-M00001.png)
WO (1) WO1999035746A1 (US06243430-20010605-M00001.png)

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EP1388229A1 (en) * 2001-05-15 2004-02-11 Finesse Wireless, Inc. A radio receiver
US7525455B2 (en) 2002-03-04 2009-04-28 Stmicroelectronics N.V. Coder apparatus for resonant power conversion and method
US7924937B2 (en) 2002-03-04 2011-04-12 Stmicroelectronics N.V. Resonant power converter for radio frequency transmission and method
US7983648B2 (en) 2005-01-13 2011-07-19 St-Ericsson Sa Low intermediate frequency receiver and the same method thereof
US8300724B2 (en) 2006-07-17 2012-10-30 Ubidyne, Inc. Digital transceiver

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
EP1388229A1 (en) * 2001-05-15 2004-02-11 Finesse Wireless, Inc. A radio receiver
EP1388229A4 (en) * 2001-05-15 2005-02-02 Finesse Wireless Inc RADIO RECEIVER
US7525455B2 (en) 2002-03-04 2009-04-28 Stmicroelectronics N.V. Coder apparatus for resonant power conversion and method
US7924937B2 (en) 2002-03-04 2011-04-12 Stmicroelectronics N.V. Resonant power converter for radio frequency transmission and method
US8340224B2 (en) 2002-03-04 2012-12-25 Stmicroelectronics N.V. Resonant power converter for radio frequency transmission and method
US7983648B2 (en) 2005-01-13 2011-07-19 St-Ericsson Sa Low intermediate frequency receiver and the same method thereof
US8300724B2 (en) 2006-07-17 2012-10-30 Ubidyne, Inc. Digital transceiver

Also Published As

Publication number Publication date
CN1168215C (zh) 2004-09-22
US6243430B1 (en) 2001-06-05
DE69924233D1 (de) 2005-04-21
EP1046232B1 (en) 2005-03-16
DE69924233T2 (de) 2006-03-30
CN1300467A (zh) 2001-06-20
JP4162851B2 (ja) 2008-10-08
NO20003499D0 (no) 2000-07-07
NO326664B1 (no) 2009-01-26
KR20010033989A (ko) 2001-04-25
IL136712A0 (en) 2001-06-14
BR9906807A (pt) 2001-10-23
CA2315758A1 (en) 1999-07-15
AU2315699A (en) 1999-07-26
KR100545492B1 (ko) 2006-01-24
CA2315758C (en) 2008-03-18
JP2002501319A (ja) 2002-01-15
EP1046232A1 (en) 2000-10-25
NO20003499L (no) 2000-09-06
ES2237906T3 (es) 2005-08-01
RU2233023C2 (ru) 2004-07-20
AU758706B2 (en) 2003-03-27

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