FI85076C - Digital radiofrekvensmottagare - Google Patents

Digital radiofrekvensmottagare Download PDF

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Publication number
FI85076C
FI85076C FI871897A FI871897A FI85076C FI 85076 C FI85076 C FI 85076C FI 871897 A FI871897 A FI 871897A FI 871897 A FI871897 A FI 871897A FI 85076 C FI85076 C FI 85076C
Authority
FI
Finland
Prior art keywords
digital
signal
filter
frequency
output
Prior art date
Application number
FI871897A
Other languages
English (en)
Finnish (fi)
Other versions
FI871897A (fi
FI85076B (fi
FI871897A0 (fi
Inventor
Robert Vincent Janc
Steven Charles Jasper
Lester Anderson Longley
Katherine Helen Lambert
William Joseph Turney
Ross James Lillie
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of FI871897A publication Critical patent/FI871897A/fi
Publication of FI871897A0 publication Critical patent/FI871897A0/fi
Publication of FI85076B publication Critical patent/FI85076B/fi
Application granted granted Critical
Publication of FI85076C publication Critical patent/FI85076C/sv

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/24—Homodyne or synchrodyne circuits for demodulation of signals wherein one sideband or the carrier has been wholly or partially suppressed
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
    • 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
    • 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
    • H03D2200/0052—Digital to analog conversion
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Analogue/Digital Conversion (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Claims (5)

1. Apparat för väsentligen digital behandling av en analog bredbandsignal, vilken innehäller en önskad analog 5 smalbandssignal, omfattande (a) medel, vilka inkluderar kopplingsmedel (102) och filtermedel (106) för mottagning och filtre-ring av en analog bredbandssignal, vilken innehäller en önskad analog smalbandssignal, 10 (b) digitaliserande medel (108), vilka kopplats till filtermedlen (108) för periodisk sampling och om-vandling av nämnda analoga bredbandssignal till en samp-lad digital bredbandssignal, kännetecknad av 15 (c) digitalmedel (110), som kopplats till nämn da digitaliseringsmedel (108), för väljande av den öns-kade, samplade, digitala smalbandssignalen frän den samplade, digitala bredbandssignalen, vilka digitalmedel inkluderar en digital kvadraturoscillator (116), en di-20 gital kvadraturmultiplikator/blandare (112), och ett digitalt kvadratursmalbandslägpassfilter (114 och 124), och medel (120) för att via en dataprogramm kontrollera bandbredden hos kvadratursmalbandslägpassfiltret (e) digitalbehandlingsmedel (126) för demodule-25 ring av nämnda samplade, digitala smalbandssignal.
2. Apparat enligt patentkrav 1 kännetecknad därav, att kopplings- och filtermedel inkluderar antenn-medel (102), för mottagning av signaler som innehäller 30 nämnda bredbandssignal (RF).
3. Apparat enligt patentkrav 2, kännetecknad därav, att filtermedelen är kopplade till antennmedlet för filtrering av nämnda bredbands-(RF)-signal. : : . 35 53 85076
4. Förfarande för väsentligen digital behandling av en analog bredbandssignal, vilken innehäller en önskad analog smalbandssignal, vilket förfarande omfattar steg, av (a) mottagning och filtrering av en analog 5 bredbandssignal, vilken innehäller en önskad analog smalbandssignal, och (b) periodiskt sampling och omvandling av nämn-da analoga bredbandssignal tili en samplad digital bredbandssignal; kännetecknat av, 10 (c) väljning av den önskade, samplade, digitala smalbandssignalen frän den samplade, digitala bred-bandssignalen (d) kontrollering av bandbredden av den samplade, digitala smalpassignalen via en dataprogramm, och 15 (e) demodulering av den nämnda samplade, digi tala smalbandssignalen.
5. Förfarande enligt patentkrav 4, kännetecknat därav, att den analoga bredpassignalen omfattar 20 en RF-bredpassignal.
FI871897A 1985-09-03 1987-04-29 Digital radiofrekvensmottagare FI85076C (sv)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US77173685A 1985-09-03 1985-09-03
US77173685 1985-09-03
US8601764 1986-08-25
PCT/US1986/001764 WO1987001531A1 (en) 1985-09-03 1986-08-25 Digital radio frequency receiver

Publications (4)

Publication Number Publication Date
FI871897A FI871897A (fi) 1987-04-29
FI871897A0 FI871897A0 (fi) 1987-04-29
FI85076B FI85076B (fi) 1991-11-15
FI85076C true FI85076C (sv) 1992-02-25

Family

ID=25092810

Family Applications (1)

Application Number Title Priority Date Filing Date
FI871897A FI85076C (sv) 1985-09-03 1987-04-29 Digital radiofrekvensmottagare

Country Status (9)

Country Link
EP (1) EP0235264A4 (sv)
JP (1) JP2829605B2 (sv)
KR (1) KR880700532A (sv)
AU (4) AU591181B2 (sv)
CA (1) CA1304786C (sv)
DK (1) DK184287D0 (sv)
FI (1) FI85076C (sv)
MY (1) MY103057A (sv)
WO (1) WO1987001531A1 (sv)

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US4857928A (en) * 1988-01-28 1989-08-15 Motorola, Inc. Method and arrangement for a sigma delta converter for bandpass signals
US4808939A (en) * 1988-04-04 1989-02-28 Unisys Corporation Variable rate rectangular matched filter
JPH0787476B2 (ja) * 1988-10-07 1995-09-20 日本電気株式会社 復調装置
US5058107A (en) * 1989-01-05 1991-10-15 Hughes Aircraft Company Efficient digital frequency division multiplexed signal receiver
US5146473A (en) 1989-08-14 1992-09-08 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
US5008900A (en) * 1989-08-14 1991-04-16 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
NL194632C (nl) * 1989-08-14 2002-09-03 Interdigital Tech Corp Abonnee-eenheid voor een draadloos digitaal telefooncommunicatiesysteem.
JP2806997B2 (ja) * 1989-11-15 1998-09-30 株式会社日立製作所 復調器
EP0470505B1 (en) * 1990-08-08 1997-01-02 National Semiconductor Corporation Synchronous FSK detection
FR2702902B1 (fr) * 1993-03-15 1995-04-21 Alcatel Radiotelephone Récepteur numérique à fréquence intermédiaire et procédé de filtrage en bande de base mis en Óoeuvre dans ce récepteur.
GB2282925B (en) * 1993-09-30 1998-04-15 Plessey Semiconductors Ltd Direct conversion receivers
US6633550B1 (en) 1997-02-20 2003-10-14 Telefonaktiebolaget Lm Ericsson (Publ) Radio transceiver on a chip
US6160859A (en) * 1998-10-19 2000-12-12 Motorola, Inc. Integrated multi-mode bandpass sigma-delta receiver subsystem with interference mitigation and method of using the same
JP2002534896A (ja) 1998-12-30 2002-10-15 インフィネオン テクノロジース アクチエンゲゼルシャフト マルチスタンダード通信端末機器用の回路装置
GB2362279B (en) * 2000-05-12 2004-12-29 Global Silicon Ltd Radio receiver
US6775530B2 (en) * 2001-11-27 2004-08-10 Qualcomm Inc. Direct conversion of narrow-band RF signals
US7358885B2 (en) 2003-02-28 2008-04-15 Silicon Laboratories, Inc. Mixing DAC architectures for a radio frequency receiver
KR20050115258A (ko) * 2003-02-28 2005-12-07 실리콘 래버래토리즈 , 인코포레이티드 라디오 주파수 수신기를 위한 튜너 및 그와 관련된 방법
US7425995B2 (en) 2003-02-28 2008-09-16 Silicon Laboratories, Inc. Tuner using a direct digital frequency synthesizer, television receiver using such a tuner, and method therefor
US7447493B2 (en) 2003-02-28 2008-11-04 Silicon Laboratories, Inc. Tuner suitable for integration and method for tuning a radio frequency signal
US7676210B2 (en) 2003-09-29 2010-03-09 Tod Paulus Method for performing dual mode image rejection calibration in a receiver
US7773968B2 (en) 2006-11-30 2010-08-10 Silicon Laboratories, Inc. Interface/synchronization circuits for radio frequency receivers with mixing DAC architectures
US7599676B2 (en) 2007-01-31 2009-10-06 Silicon Laboratories, Inc. Power consumption reduction techniques for an RF receiver implementing a mixing DAC architecture
RU2726281C1 (ru) * 2019-08-26 2020-07-10 Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации Активная фазированная антенная решетка

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Also Published As

Publication number Publication date
AU591181B2 (en) 1989-11-30
FI871897A (fi) 1987-04-29
CA1304786C (en) 1992-07-07
AU611584B2 (en) 1991-06-13
FI85076B (fi) 1991-11-15
EP0235264A4 (en) 1990-02-26
AU4009989A (en) 1989-12-07
JPS63500766A (ja) 1988-03-17
AU6335586A (en) 1987-03-24
EP0235264A1 (en) 1987-09-09
FI871897A0 (fi) 1987-04-29
DK184287A (da) 1987-04-10
AU611317B2 (en) 1991-06-06
JP2829605B2 (ja) 1998-11-25
WO1987001531A1 (en) 1987-03-12
AU4010189A (en) 1989-12-07
KR880700532A (ko) 1988-03-15
AU4010089A (en) 1989-12-07
DK184287D0 (da) 1987-04-10
AU611318B2 (en) 1991-06-06
MY103057A (en) 1993-04-30

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FG Patent granted

Owner name: MOTOROLA, INC.

MA Patent expired