ES8303845A1 - "dispositivo desmodulador numerico de senales moduladas". - Google Patents

"dispositivo desmodulador numerico de senales moduladas".

Info

Publication number
ES8303845A1
ES8303845A1 ES510461A ES510461A ES8303845A1 ES 8303845 A1 ES8303845 A1 ES 8303845A1 ES 510461 A ES510461 A ES 510461A ES 510461 A ES510461 A ES 510461A ES 8303845 A1 ES8303845 A1 ES 8303845A1
Authority
ES
Spain
Prior art keywords
demodulator
signal
output
phase
delay
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
Application number
ES510461A
Other languages
English (en)
Other versions
ES510461A0 (es
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt SA
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 Thomson-Brandt SA filed Critical Thomson-Brandt SA
Publication of ES8303845A1 publication Critical patent/ES8303845A1/es
Publication of ES510461A0 publication Critical patent/ES510461A0/es
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/642—Multi-standard receivers
    • 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
    • H03D2200/006—Signal sampling
    • H03D2200/0062—Computation of input samples, e.g. successive samples

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Systems (AREA)

Abstract

DISPOSITIVO DESMODULADOR NUMERICO. COMPRENDE UN MUESTREADOR (3) DE LA SEÑAL A DESMODULAR, UN CONVERTIDOR ANALOGICO-DIGITAL (4) DE LAS MUESTRAS SELECCIONADAS, UN PRIMER DISPOSITIVO DE RETARDO (5) CON UNA ENTRADA ACOPLADA A LA SALIDA DEL CONVERTIDOR, UN SEGUNDO DISPOSITIVO DE RETARDO (6) Y UN DISPOSITIVO DE DETERMINACION DEL MODULO (10) Y LA FASE (11) DEL VECTOR REPRESENTATIVO DE LA SEÑAL. DISPOSITIVOS DE CALCULO (B, C) OBTIENEN LA VARIACION DE FRECUENCIA DE LA SEÑAL Y AMPLITUDES DE LAS SEÑALES DE MODULACION.
ES510461A 1981-03-17 1982-03-16 "dispositivo desmodulador numerico de senales moduladas". Granted ES510461A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8105285A FR2502423A1 (fr) 1981-03-17 1981-03-17 Demodulateur numerique de signaux et systeme de television comportant un tel demodulateur

Publications (2)

Publication Number Publication Date
ES8303845A1 true ES8303845A1 (es) 1983-02-01
ES510461A0 ES510461A0 (es) 1983-02-01

Family

ID=9256315

Family Applications (1)

Application Number Title Priority Date Filing Date
ES510461A Granted ES510461A0 (es) 1981-03-17 1982-03-16 "dispositivo desmodulador numerico de senales moduladas".

Country Status (5)

Country Link
EP (1) EP0061377B1 (es)
JP (1) JPH0244197B2 (es)
DE (1) DE3266100D1 (es)
ES (1) ES510461A0 (es)
FR (1) FR2502423A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3275448D1 (en) * 1982-11-26 1987-03-19 Itt Ind Gmbh Deutsche Digital fm demodulation circuit
US4547737A (en) * 1983-07-29 1985-10-15 Rca Corporation Demodulator of sampled data FM signals from sets of four successive samples
FR2552598B1 (fr) * 1983-09-23 1985-10-31 Labo Electronique Physique Procede et circuit de demodulation numerique d'un signal module en amplitude et recepteur de television equipe d'un tel circuit
JPS60185475A (ja) * 1984-03-05 1985-09-20 Alps Electric Co Ltd 高周波変調回路
US4675863A (en) 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US4825448A (en) * 1986-08-07 1989-04-25 International Mobile Machines Corporation Subscriber unit for wireless digital telephone system
US5546383A (en) 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1585253A (es) * 1968-08-09 1970-01-16
US4090145A (en) * 1969-03-24 1978-05-16 Webb Joseph A Digital quadrature demodulator
BE755583A (fr) * 1969-09-05 1971-02-15 Rca Corp Circuit démodulateur pour décodeur PAL/SECAM
US3952187A (en) * 1975-06-27 1976-04-20 Ford Motor Company Circuit for transforming rectangular coordinates to polar coordinates
DE2833335A1 (de) * 1978-07-29 1980-03-06 Licentia Gmbh Digitaler frequenzdiskriminator

Also Published As

Publication number Publication date
JPS581389A (ja) 1983-01-06
FR2502423B1 (es) 1983-04-29
FR2502423A1 (fr) 1982-09-24
EP0061377A1 (fr) 1982-09-29
JPH0244197B2 (ja) 1990-10-03
DE3266100D1 (en) 1985-10-17
ES510461A0 (es) 1983-02-01
EP0061377B1 (fr) 1985-09-11

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970303