FI871897A - DIGITAL RADIO FREQUENCY MOTOR. - Google Patents

DIGITAL RADIO FREQUENCY MOTOR. Download PDF

Info

Publication number
FI871897A
FI871897A FI871897A FI871897A FI871897A FI 871897 A FI871897 A FI 871897A FI 871897 A FI871897 A FI 871897A FI 871897 A FI871897 A FI 871897A FI 871897 A FI871897 A FI 871897A
Authority
FI
Finland
Prior art keywords
digital
receiver
radio frequency
digital radio
frequency motor
Prior art date
Application number
FI871897A
Other languages
Finnish (fi)
Other versions
FI85076B (en
FI871897A0 (en
FI85076C (en
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/en
Publication of FI871897A0 publication Critical patent/FI871897A0/en
Publication of FI85076B publication Critical patent/FI85076B/en
Application granted granted Critical
Publication of FI85076C publication Critical patent/FI85076C/en

Links

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)

Abstract

The digital receiver 100 forms a digital radio frequency receiver which processes a received analogue signal which is converted to digital form in accordance with prior selection at the output from the aerial. The digital receiver 100 according to this invention comprises a preselector 106, a high-speed analogue/digital converter 108, a digital selective intermediate frequency section 110 which has an output signal essentially at baseband frequencies, and a digital signal processing circuit 120 which carries out demodulation and audio filtering. The radio architecture of this invention can be programmed for application for practically all known modulation schemes and is particularly suitable for equipment with integrated circuits.
FI871897A 1985-09-03 1987-04-29 Digital radio frequency receiver FI85076C (en)

Applications Claiming Priority (4)

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

Publications (4)

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

Family

ID=25092810

Family Applications (1)

Application Number Title Priority Date Filing Date
FI871897A FI85076C (en) 1985-09-03 1987-04-29 Digital radio frequency receiver

Country Status (9)

Country Link
EP (1) EP0235264A4 (en)
JP (1) JP2829605B2 (en)
KR (1) KR880700532A (en)
AU (4) AU591181B2 (en)
CA (1) CA1304786C (en)
DK (1) DK184287A (en)
FI (1) FI85076C (en)
MY (1) MY103057A (en)
WO (1) WO1987001531A1 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (en) * 1988-10-07 1995-09-20 日本電気株式会社 Demodulator
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
NL194631C (en) * 1989-08-14 2002-09-03 Interdigital Tech Corp Subscriber unit for processing communication signals in a wireless telecommunication system.
JP2806997B2 (en) * 1989-11-15 1998-09-30 株式会社日立製作所 Demodulator
DE69123893T2 (en) * 1990-08-08 1997-07-10 Nat Semiconductor Corp Synchronous detection of FSK signals
FR2702902B1 (en) * 1993-03-15 1995-04-21 Alcatel Radiotelephone Digital intermediate frequency receiver and baseband filtering method implemented in this receiver.
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
CN1134902C (en) 1998-12-30 2004-01-14 因芬尼昂技术股份公司 Circuit for multi-standard communications terminal
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
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
US7358885B2 (en) 2003-02-28 2008-04-15 Silicon Laboratories, Inc. Mixing DAC architectures for a radio frequency receiver
US7447493B2 (en) 2003-02-28 2008-11-04 Silicon Laboratories, Inc. Tuner suitable for integration and method for tuning a radio frequency signal
KR20050115258A (en) 2003-02-28 2005-12-07 실리콘 래버래토리즈 , 인코포레이티드 Tuner for radio frequency and associated method
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 (en) * 2019-08-26 2020-07-10 Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации Active phased antenna array

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611144A (en) * 1969-03-03 1971-10-05 Datamax Corp Signal transmission system with coherent detection and distortion correction
US4090145A (en) * 1969-03-24 1978-05-16 Webb Joseph A Digital quadrature demodulator
US4037049A (en) * 1974-10-18 1977-07-19 Intertel, Inc. Modulator and demodulator for data communications network
FR2296322A1 (en) * 1974-12-27 1976-07-23 Ibm France DIGITAL DATA DETECTION SYSTEM TRANSMITTED BY MODULATION OF A CARRIER
US4379284A (en) * 1979-09-21 1983-04-05 Westinghouse Electric Corp. Coherent phase shift keyed demodulator for power line communication systems
US4311964A (en) * 1979-09-21 1982-01-19 Westinghouse Electric Corp. Coherent phase shift keyed demodulator for power line communication systems
DE3007907A1 (en) * 1980-03-01 1981-09-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt DIGITAL RECEIVER
DE3114063A1 (en) * 1981-04-07 1982-10-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt RECEPTION SYSTEM
GB2106734B (en) * 1981-09-15 1986-01-15 Standard Telephones Cables Ltd Radio receiver
DE3138464A1 (en) * 1981-09-26 1983-04-14 Robert Bosch Gmbh, 7000 Stuttgart Method for the digital demodulation of frequency-modulated signals
US4606045A (en) * 1982-08-02 1986-08-12 Trw Inc. Method and apparatus for detecting an equalizer training period in a receiving-end modem
US4555790A (en) * 1983-06-30 1985-11-26 Betts William L Digital modem having a monitor for signal-to-noise ratio
US4583236A (en) * 1983-11-04 1986-04-15 Racal Data Communications Inc. Modified absolute phase detector
AU572841B2 (en) * 1984-04-20 1988-05-19 Motorola, Inc. Extended threshold analog to digital conversion apparatus foran rf receiver
US4560941A (en) * 1984-09-21 1985-12-24 General Electric Company Frequency modulation detector using digital signal vector processing
CA1281080C (en) * 1985-04-04 1991-03-05 Steven C. Jasper Digital zero-if selectivity section

Also Published As

Publication number Publication date
AU4010189A (en) 1989-12-07
FI85076B (en) 1991-11-15
CA1304786C (en) 1992-07-07
AU611318B2 (en) 1991-06-06
KR880700532A (en) 1988-03-15
EP0235264A1 (en) 1987-09-09
MY103057A (en) 1993-04-30
AU4009989A (en) 1989-12-07
AU4010089A (en) 1989-12-07
AU6335586A (en) 1987-03-24
JP2829605B2 (en) 1998-11-25
EP0235264A4 (en) 1990-02-26
DK184287D0 (en) 1987-04-10
DK184287A (en) 1987-04-10
WO1987001531A1 (en) 1987-03-12
FI871897A0 (en) 1987-04-29
AU611584B2 (en) 1991-06-13
AU611317B2 (en) 1991-06-06
FI85076C (en) 1992-02-25
JPS63500766A (en) 1988-03-17
AU591181B2 (en) 1989-11-30

Similar Documents

Publication Publication Date Title
FI871897A (en) DIGITAL RADIO FREQUENCY MOTOR.
ATE180606T1 (en) FM RECEIVER
NO883572D0 (en) QUICK TUNING INDUCTOR FOR RADIO FREQUENCY NETWORKS.
FI843679L (en) AVSTAEMNINGSENHET FOER APPARATER FOER UNDERRAETTELSEKOMMUNIKATIONSTEKNIK.
DE3585232D1 (en) METHOD AND CIRCUIT ARRANGEMENT FOR CONVERTING FREQUENCY-MODULATED SIGNALS OVER AT LEAST ONE INTERMEDIATE FREQUENCY IN LOW-FREQUENCY SIGNALS.
DE59410344D1 (en) Demodulator for RDS signals
DE3465672D1 (en) Squelch circuit for an am/fm radio receiver
DE69524689D1 (en) Double-tuned, frequency band switchable RF circuit arrangement with symmetrical output signals
DE3264416D1 (en) Frequency demodulator
JPS6439122A (en) Digital data demodulating circuit
SE8203649L (en) Motor vehicle radio receiver - has control circuit connected to receiver blocking stage and via store to tuning voltage generator
JPS5765902A (en) Fm demodulating circuit
JPS52102626A (en) Tv receiver
ES465050A1 (en) Television receiver having a demodulator circuit for demodulating a television signal modulated on a carrier
ATE45450T1 (en) FM RADIO RECEIVER.
JPS5513573A (en) Multi-channel receiving circuit
JPS5689142A (en) Multipath distortion detecting circuit of fm receiver
EP0304923A3 (en) Output processing circuit for radio frequency receiver
DE58909726D1 (en) Circuit arrangement for demodulating an auxiliary carrier
JPS6238363Y2 (en)
JPS56160118A (en) Afc and agc circuit in common
JPS5579541A (en) Mobile radio equipment
JPS5741043A (en) Frequency modulation radio receiver
JPS6432536A (en) Fm receiver
JPS55135430A (en) Radio receiver

Legal Events

Date Code Title Description
FG Patent granted

Owner name: MOTOROLA, INC.

MA Patent expired