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BR8602662A - Aparelho misturador digital e para produzir a partir de um sinal de entrada digital,em uma frequencia de amostragem particular,dois outros sinais representando os componentes reais e imaginarios do mesmo - Google Patents

Aparelho misturador digital e para produzir a partir de um sinal de entrada digital,em uma frequencia de amostragem particular,dois outros sinais representando os componentes reais e imaginarios do mesmo

Info

Publication number
BR8602662A
BR8602662A BR8602662A BR8602662A BR8602662A BR 8602662 A BR8602662 A BR 8602662A BR 8602662 A BR8602662 A BR 8602662A BR 8602662 A BR8602662 A BR 8602662A BR 8602662 A BR8602662 A BR 8602662A
Authority
BR
Brazil
Prior art keywords
digital
real
produce
mixing device
sampling frequency
Prior art date
Application number
BR8602662A
Other languages
English (en)
Inventor
Michael Cullen Jackson
Original Assignee
Gen Electric Co Plc
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 Gen Electric Co Plc filed Critical Gen Electric Co Plc
Publication of BR8602662A publication Critical patent/BR8602662A/pt

Links

Classifications

    • 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
    • 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)
  • Radar Systems Or Details Thereof (AREA)
  • Superheterodyne Receivers (AREA)
  • Complex Calculations (AREA)
BR8602662A 1985-06-06 1986-06-06 Aparelho misturador digital e para produzir a partir de um sinal de entrada digital,em uma frequencia de amostragem particular,dois outros sinais representando os componentes reais e imaginarios do mesmo BR8602662A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8514260A GB2176362B (en) 1985-06-06 1985-06-06 Digital mixing apparatus

Publications (1)

Publication Number Publication Date
BR8602662A true BR8602662A (pt) 1987-02-03

Family

ID=10580254

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8602662A BR8602662A (pt) 1985-06-06 1986-06-06 Aparelho misturador digital e para produzir a partir de um sinal de entrada digital,em uma frequencia de amostragem particular,dois outros sinais representando os componentes reais e imaginarios do mesmo

Country Status (7)

Country Link
US (1) US4797844A (pt)
EP (1) EP0204570A3 (pt)
JP (1) JPS6254192A (pt)
CN (1) CN86104796A (pt)
AU (1) AU5846186A (pt)
BR (1) BR8602662A (pt)
GB (1) GB2176362B (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283104A (ja) * 1988-09-20 1990-03-23 Osaka Kiko Co Ltd 主軸支持ベアリングの可変予圧装置
US5001660A (en) * 1989-04-27 1991-03-19 Hewlett-Packard Company Waveform generation method using stored complex data
US5008900A (en) * 1989-08-14 1991-04-16 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
US5146473A (en) 1989-08-14 1992-09-08 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
US5041998A (en) * 1989-11-30 1991-08-20 The Grass Valley Group Inc. Digital video mixer
JPH0572789U (ja) * 1991-05-09 1993-10-05 有限会社花サマンサ 花輸送具
DE4237692C1 (de) * 1992-11-07 1994-03-03 Grundig Emv Empfänger für ein digitales Rundfunksignal
SE501604C2 (sv) * 1993-08-13 1995-03-27 Ericsson Telefon Ab L M Metod och anordning för sampling av elektriska signaler
US5442582A (en) * 1994-03-04 1995-08-15 Loral Aerospace Corp. Transversal filter allrate equalizer for use at intermediate frequency
JPH10335684A (ja) * 1997-05-30 1998-12-18 Canon Inc 光電気変換体の製造方法
CN1713515B (zh) * 2004-06-25 2010-08-11 盛群半导体股份有限公司 数字中频鉴频器
US7656750B2 (en) * 2008-02-26 2010-02-02 Semiconductor Components Industries, Llc Echo detection
CN106208968B (zh) * 2015-05-07 2019-04-02 澜起科技股份有限公司 信号混频方法以及混频器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935535A (en) * 1974-09-09 1976-01-27 Hycom Incorporated Fast equalization acquisition for automatic adaptive digital modem
US4117538A (en) * 1977-05-04 1978-09-26 Raytheon Company Radar system with specialized weighting
DE3007907A1 (de) * 1980-03-01 1981-09-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digitaler empfaenger
CA1151248A (en) * 1980-08-27 1983-08-02 Gerald O. Venier Convoluted code matched filter
SE419581B (sv) * 1980-09-12 1981-08-10 Ericsson Telefon Ab L M Anordning i ett radarsystem for korrektion av fas- och amplitudfel, som uppstar i kvadraturdetektorn
US4519084A (en) * 1982-09-29 1985-05-21 At&T Bell Laboratories Matched filter for combating multipath fading

Also Published As

Publication number Publication date
AU5846186A (en) 1986-12-11
CN86104796A (zh) 1987-05-20
EP0204570A2 (en) 1986-12-10
JPS6254192A (ja) 1987-03-09
GB2176362A (en) 1986-12-17
EP0204570A3 (en) 1988-12-07
GB2176362B (en) 1989-12-06
US4797844A (en) 1989-01-10

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