ES2100203T3 - Receptor numerico. - Google Patents

Receptor numerico.

Info

Publication number
ES2100203T3
ES2100203T3 ES91202892T ES91202892T ES2100203T3 ES 2100203 T3 ES2100203 T3 ES 2100203T3 ES 91202892 T ES91202892 T ES 91202892T ES 91202892 T ES91202892 T ES 91202892T ES 2100203 T3 ES2100203 T3 ES 2100203T3
Authority
ES
Spain
Prior art keywords
frequency
digital
signal
sampling
converter
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
ES91202892T
Other languages
English (en)
Inventor
Gerardus Christiaan Mar Gielis
Der Plassche Rudy Johan Van
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.)
Koninklijke Philips NV
Original Assignee
Philips Electronics NV
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 Philips Electronics NV filed Critical Philips Electronics NV
Application granted granted Critical
Publication of ES2100203T3 publication Critical patent/ES2100203T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • 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
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/0092—Measures to linearise or reduce distortion of oscillator characteristics
    • 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
    • H03B23/00—Generation of oscillations periodically swept over a predetermined frequency range
    • 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
    • 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
    • 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
    • H03D2200/0054—Digital filters
    • 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
    • H03D5/00—Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Pinball Game Machines (AREA)

Abstract

RECEPTOR QUE CONSTA DE UN CONVERTIDOR A/D (5) PARA EL MUESTREO DIGITAL DE UNA SEÑAL ANALOGICA MODULADA EN UN PORTA FRECUENCIA EN UNA PRIMERA FRECUENCIA DE MUESTREO, CONSECUTIVAMENTE ACOPLADO A UN ESTADIO MEZCLADOR DE CUADRATURA DIGITAL (6) PARA UN CAMBIO DE PORTA FRECUENCIA DE LA SEÑAL DIGITALIZADA MODULADA DEL CONVERTIDOR A/D, UN DISPOSITIVO DE FILTRO DIGITAL (10, 11) PARA SELECCIONAR LAS SEÑALES DE CUADRATURA DE FASE DEL ESTADIO MEZCLADOR DE CUADRATURA Y PARA DIEZMAR LA FRECUENCIA DE MUESTREO DE LA PRIMERA FRECUENCIA DE MUESTREO MENCIONADA A UNA SEGUNDA FRECUENCIA DE MUESTREO, Y UN DISPOSITIVO DE DESMODULACION DIGITAL (12, 13). PARA OBTENER UN RECEPTOR QUE SE PUEDA REALIZAR FACILMENTE EN UNA FORMA INTEGRADA Y PARA EL QUE SE NECESITA MENOS SUPERFICIE DE CRISTAL QUE PARA LOS RECEPTORES INTEGRABLES DIGITALES HASTA AHORA CONOCIDOS, Y QUE ES PARTICULARMENTE INDICADO PARA RECIBIR SEÑALES DE RADIO RF O DE RED DE TV, LA ETAPA MEZCLADORA DE CUADRATURA DIGITAL COMPRENDE UN PRIMER ORDENADOR DIGITALDE ROTACION COORDINADA (CORDIC) (9) EN EL MODO DE ROTACION, QUE TIENE AL MENOS UNA PRIMERA ENTRADA DE SEÑAL QUE SE ACOPLA A UNA SALIDA DEL CONVERTIDOR A/D Y UNA SEÑAL DE ENTRADA DE FASE A LA QUE SE APLICA UNA SEÑAL DE FASE DIGITAL PERIODICA EN FORMA DE DIENTE DE SIERRA DESDE UN GENERADOR DIGITAL DE SIERRA (GS) PARA UNA ROTACION DE FASE PERIODICA DE 2(PI) DE AL MENOS LA SEÑAL APLICADA AL ORDENADOR POR MEDIO DE LA PRIMERA SEÑAL DE ENTRADA A UNA FRECUENCIA DE REPETICION QUE ES IGUAL A LA MAGNITUD DEL CAMBIO DE PORTAFRECUENCIA ANTES MENCIONADO
ES91202892T 1990-11-15 1991-11-07 Receptor numerico. Expired - Lifetime ES2100203T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9002489A NL9002489A (nl) 1990-11-15 1990-11-15 Ontvanger.

Publications (1)

Publication Number Publication Date
ES2100203T3 true ES2100203T3 (es) 1997-06-16

Family

ID=19857981

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91202892T Expired - Lifetime ES2100203T3 (es) 1990-11-15 1991-11-07 Receptor numerico.

Country Status (9)

Country Link
US (1) US5230011A (es)
EP (1) EP0486095B1 (es)
JP (1) JP3181645B2 (es)
KR (1) KR100209386B1 (es)
AT (1) ATE148963T1 (es)
DE (1) DE69124663T2 (es)
ES (1) ES2100203T3 (es)
FI (1) FI104449B (es)
NL (1) NL9002489A (es)

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DE4310462C2 (de) * 1992-12-12 1995-06-14 Ant Nachrichtentech Verfahren zur Demodulation von frequenzmodulierten Signalen
DE4241965C1 (de) * 1992-12-12 1994-05-26 Ant Nachrichtentech Verfahren zur Demodulation von frequenzmodulierten Signalen
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US5606579A (en) * 1994-05-23 1997-02-25 Samsung Electronics Co., Ltd. Digital VSB detector with final IF carrier at submultiple of symbol rate, as for HDTV receiver
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Also Published As

Publication number Publication date
NL9002489A (nl) 1992-06-01
JPH0637664A (ja) 1994-02-10
KR100209386B1 (ko) 1999-07-15
FI104449B (fi) 2000-01-31
DE69124663T2 (de) 1997-07-31
JP3181645B2 (ja) 2001-07-03
ATE148963T1 (de) 1997-02-15
FI915331A7 (fi) 1992-05-16
FI915331A0 (fi) 1991-11-12
DE69124663D1 (de) 1997-03-27
KR920011140A (ko) 1992-06-27
US5230011A (en) 1993-07-20
EP0486095A1 (en) 1992-05-20
EP0486095B1 (en) 1997-02-12

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