DE69733222D1 - Digitaler FM-Demodulator - Google Patents

Digitaler FM-Demodulator

Info

Publication number
DE69733222D1
DE69733222D1 DE69733222T DE69733222T DE69733222D1 DE 69733222 D1 DE69733222 D1 DE 69733222D1 DE 69733222 T DE69733222 T DE 69733222T DE 69733222 T DE69733222 T DE 69733222T DE 69733222 D1 DE69733222 D1 DE 69733222D1
Authority
DE
Germany
Prior art keywords
demodulator
digital
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
DE69733222T
Other languages
English (en)
Inventor
Stephen A Allpress
Roy Baxter Blake
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies 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
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Application granted granted Critical
Publication of DE69733222D1 publication Critical patent/DE69733222D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/005—Analog to digital conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/006—Signal sampling
    • H03D2200/0062—Computation of input samples, e.g. successive samples
    • 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
    • H03D3/006—Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Analogue/Digital Conversion (AREA)
  • Amplitude Modulation (AREA)
  • Circuits Of Receivers In General (AREA)
  • Stereo-Broadcasting Methods (AREA)
DE69733222T 1996-04-04 1997-03-25 Digitaler FM-Demodulator Expired - Lifetime DE69733222D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/628,223 US5694079A (en) 1996-04-04 1996-04-04 Digital FM demodulator using a lagrangian interpolation function

Publications (1)

Publication Number Publication Date
DE69733222D1 true DE69733222D1 (de) 2005-06-16

Family

ID=24517990

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69733222T Expired - Lifetime DE69733222D1 (de) 1996-04-04 1997-03-25 Digitaler FM-Demodulator

Country Status (6)

Country Link
US (1) US5694079A (de)
EP (1) EP0800266B1 (de)
JP (1) JP3247850B2 (de)
KR (1) KR100249586B1 (de)
CA (1) CA2196819C (de)
DE (1) DE69733222D1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19854458A1 (de) 1998-11-25 2000-06-08 Siemens Ag Verfahren und Einrichtung zur Rückgewinnung eines Nutzsignals aus einem durch Frequenzumtastung modulierten Signal
JP4053689B2 (ja) * 1999-06-11 2008-02-27 パイオニア株式会社 Ｆｍ復調器
US6545532B1 (en) 1999-09-08 2003-04-08 Atmel Corporation Timing recovery circuit in a QAM demodulator
US20020101939A1 (en) * 2000-11-09 2002-08-01 Sundaresan Harini V. Fixed-point DSP implementation of FM demodulation and decoding
US6968019B2 (en) * 2000-11-27 2005-11-22 Broadcom Corporation IF FSK receiver
US7167215B2 (en) * 2001-04-16 2007-01-23 Thomson Licensing Gain control for a high definition television demodulator
KR20030079027A (ko) * 2002-04-01 2003-10-10 엘지이노텍 주식회사 Ｆｍ 복조방법 및 장치
GB2391731A (en) * 2002-08-07 2004-02-11 Zarlink Semiconductor Ltd Conversion circuit, tuner and demodulator
US7038602B1 (en) * 2004-10-30 2006-05-02 Agilent Technologies, Inc. Method for correcting periodic sampling errors
JP2007221203A (ja) * 2006-02-14 2007-08-30 Oki Electric Ind Co Ltd 復調システム
US8768279B2 (en) 2010-04-15 2014-07-01 Nec Corporation Cross-polarization interference compensation apparatus, cross-polarization interference compensation method, and program

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517485A1 (de) * 1985-05-15 1986-11-20 Blaupunkt-Werke Gmbh, 3200 Hildesheim Demodulator fuer frequenzmodulierte signale in digitaler form
JPS6448504A (en) * 1987-08-18 1989-02-23 Mitsubishi Electric Corp Fm demodulator
US4885546A (en) * 1988-02-10 1989-12-05 Sony Corp. Digital demodulator for AM or FM
GB2215545A (en) * 1988-03-16 1989-09-20 Philips Electronic Associated A direct-conversion receiver
US5220583A (en) * 1988-10-03 1993-06-15 Motorola, Inc. Digital fm demodulator with a reduced sampling rate
US4910469A (en) * 1989-05-02 1990-03-20 Rca Licensing Corporation Demodulator for sampled data FM signals
US5309482A (en) * 1992-03-30 1994-05-03 Novatel Communications Ltd. Receiver having an adjustable matched filter
TW263640B (de) * 1992-06-26 1995-11-21 Philips Electronics Nv
JPH06204798A (ja) * 1992-12-28 1994-07-22 Hitachi Cable Ltd 非同期サンプリング周波数変換の補間方式
JP3400003B2 (ja) * 1993-02-18 2003-04-28 株式会社日立製作所 複素変復調方式

Also Published As

Publication number Publication date
CA2196819A1 (en) 1997-10-05
EP0800266A3 (de) 1999-08-04
JPH1075122A (ja) 1998-03-17
KR970072643A (ko) 1997-11-07
US5694079A (en) 1997-12-02
CA2196819C (en) 2001-03-20
MX9702195A (es) 1998-05-31
JP3247850B2 (ja) 2002-01-21
EP0800266B1 (de) 2005-05-11
KR100249586B1 (ko) 2000-03-15
EP0800266A2 (de) 1997-10-08

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Legal Events

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8332 No legal effect for de