IL77777A - Digital zero-if selectivity section - Google Patents

Digital zero-if selectivity section

Info

Publication number
IL77777A
IL77777A IL77777A IL7777786A IL77777A IL 77777 A IL77777 A IL 77777A IL 77777 A IL77777 A IL 77777A IL 7777786 A IL7777786 A IL 7777786A IL 77777 A IL77777 A IL 77777A
Authority
IL
Israel
Prior art keywords
speed
digital
low
preferred
dziss
Prior art date
Application number
IL77777A
Other languages
English (en)
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 IL77777A publication Critical patent/IL77777A/xx

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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • 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
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B27/00—Generation of oscillations providing a plurality of outputs of the same frequency but differing in phase, other than merely two anti-phase outputs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplifiers (AREA)
  • Communication Control (AREA)
  • Dc Digital Transmission (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Executing Machine-Instructions (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmitters (AREA)
IL77777A 1985-04-04 1986-02-03 Digital zero-if selectivity section IL77777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72031185A 1985-04-04 1985-04-04

Publications (1)

Publication Number Publication Date
IL77777A true IL77777A (en) 1989-09-28

Family

ID=24893523

Family Applications (1)

Application Number Title Priority Date Filing Date
IL77777A IL77777A (en) 1985-04-04 1986-02-03 Digital zero-if selectivity section

Country Status (10)

Country Link
EP (1) EP0216803B1 (de)
JP (1) JPS62502439A (de)
KR (1) KR880700552A (de)
CN (1) CN1003694B (de)
AT (1) ATE87777T1 (de)
AU (1) AU573966B2 (de)
CA (1) CA1281080C (de)
DE (1) DE3688170T2 (de)
IL (1) IL77777A (de)
WO (1) WO1986005936A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177876A (en) * 1985-07-08 1987-01-28 Philips Electronic Associated Radio system and a transmitter and a receiver for use in the system
EP0235264A4 (de) * 1985-09-03 1990-02-26 Motorola Inc Digitaler funkempfänger.
EP0310960A3 (de) * 1987-10-05 1990-04-25 Advantest Corporation Digitaler verriegelter Verstärker
JP2651680B2 (ja) * 1987-10-19 1997-09-10 株式会社アドバンテスト デジタルロックイン増幅器
JP2651679B2 (ja) * 1987-10-05 1997-09-10 株式会社アドバンテスト デジタルロックイン増幅器
GB2215945A (en) * 1988-03-26 1989-09-27 Stc Plc Digital direct conversion radio
US5375146A (en) * 1993-05-06 1994-12-20 Comsat Corporation Digital frequency conversion and tuning scheme for microwave radio receivers and transmitters
US5490173A (en) * 1993-07-02 1996-02-06 Ford Motor Company Multi-stage digital RF translator
DE4434451A1 (de) * 1994-09-27 1996-03-28 Blaupunkt Werke Gmbh Amplitudendemodulator
BR9605951A (pt) * 1995-04-03 1997-08-19 Motorola Inc Conversor para cima/modulador conversor para cima/modulador de modos múltiplos aparelho para convenção para cima/modulação de sinais de comunicação de formatos de acesso múltiplo transmissor digital de acesso múltiplo
US6256358B1 (en) * 1998-03-27 2001-07-03 Visteon Global Technologies, Inc. Digital signal processing architecture for multi-band radio receiver
JP3484980B2 (ja) * 1998-06-23 2004-01-06 日本電気株式会社 無線受信機
JP2001203763A (ja) * 2000-01-24 2001-07-27 Nec Ic Microcomput Syst Ltd 信号伝送方法および装置、データ処理装置
US7096081B2 (en) * 2002-03-01 2006-08-22 Visteon Global Technologies, Inc. Method of implementing a variable number of filter sections for digital signal processing
EP1788377B1 (de) * 2004-08-11 2015-11-04 Nihon Dempa Kogyo Co., Ltd. Messvorrichtung
WO2007074411A2 (en) * 2005-12-26 2007-07-05 Dsp Group Switzerland Ag Transmitter, telecommunication terminal and method using the transmitter
EP2797225B1 (de) * 2013-04-24 2018-01-10 Analog Devices Global Verfahren und Vorrichtung zur Demodulation eines amplitudenmodulierten Signals
US10575395B2 (en) * 2016-06-07 2020-02-25 Honeywell International Inc. Band pass filter-based galvanic isolator
US11656848B2 (en) * 2019-09-18 2023-05-23 Stmicroelectronics International N.V. High throughput parallel architecture for recursive sinusoid synthesizer

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL168099C (nl) * 1974-09-12 1982-02-16 Philips Nv Modulatie- en filterinrichting voor digitale signalen.
US3988539A (en) * 1974-09-16 1976-10-26 Hycom Incorporated Data transmission system using optimal eight-vector signaling scheme
US3979701A (en) * 1975-06-17 1976-09-07 Communications Satellite Corporation (Comsat) Non-recursive digital filter employing simple coefficients
FR2331213A1 (fr) * 1975-11-10 1977-06-03 Ibm France Filtre numerique
US4011438A (en) * 1975-12-17 1977-03-08 Motorola, Inc. Simplified digital moving target indicator filter
US4071821A (en) * 1976-04-28 1978-01-31 Honeywell Inc. Quadrature correlation phase determining apparatus
NL175575C (nl) * 1976-05-28 1984-11-16 Philips Nv Filter- en demodulatie-inrichting.
JPS5322411A (en) * 1976-08-13 1978-03-01 Minolta Camera Co Ltd Flash-matic change device for came ra
US4159526A (en) * 1977-08-08 1979-06-26 Ncr Corporation Digitally controlled variable frequency oscillator
US4237554A (en) * 1979-03-01 1980-12-02 Bell Telephone Laboratories, Incorporated Coefficient tap leakage for fractionally-spaced equalizers
DE3138464A1 (de) * 1981-09-26 1983-04-14 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur digitalen demodulation frequenzmodulierter signale
DE3274936D1 (en) * 1981-09-26 1987-02-05 Bosch Gmbh Robert Digital demodulator for frequency-modulated signals
US4475220A (en) * 1982-01-19 1984-10-02 Rca Corporation Symbol synchronizer for MPSK signals

Also Published As

Publication number Publication date
CN1003694B (zh) 1989-03-22
DE3688170T2 (de) 1993-07-08
CN86101766A (zh) 1986-10-01
ATE87777T1 (de) 1993-04-15
DE3688170D1 (de) 1993-05-06
EP0216803B1 (de) 1993-03-31
EP0216803A4 (de) 1988-11-02
CA1281080C (en) 1991-03-05
WO1986005936A1 (en) 1986-10-09
AU5454786A (en) 1986-10-23
JPS62502439A (ja) 1987-09-17
KR880700552A (ko) 1988-03-15
EP0216803A1 (de) 1987-04-08
AU573966B2 (en) 1988-06-23

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Legal Events

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KB Patent renewed
RH Patent void