ES8609858A1 - Perfeccionamientos en los desmoduladores de frecuencia - Google Patents

Perfeccionamientos en los desmoduladores de frecuencia

Info

Publication number
ES8609858A1
ES8609858A1 ES544470A ES544470A ES8609858A1 ES 8609858 A1 ES8609858 A1 ES 8609858A1 ES 544470 A ES544470 A ES 544470A ES 544470 A ES544470 A ES 544470A ES 8609858 A1 ES8609858 A1 ES 8609858A1
Authority
ES
Spain
Prior art keywords
analog
receiver
digital
time division
signals
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
ES544470A
Other languages
English (en)
Other versions
ES544470A0 (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.)
CENTRE NAT ETD TELECOMM
Telediffusion de France ets Public de Diffusion
France Telecom R&D SA
Original Assignee
CENTRE NAT ETD TELECOMM
Telediffusion de France ets Public de Diffusion
Centre National dEtudes des Telecommunications CNET
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 CENTRE NAT ETD TELECOMM, Telediffusion de France ets Public de Diffusion, Centre National dEtudes des Telecommunications CNET filed Critical CENTRE NAT ETD TELECOMM
Publication of ES8609858A1 publication Critical patent/ES8609858A1/es
Publication of ES544470A0 publication Critical patent/ES544470A0/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/08—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using sequential signals only
    • 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
    • H04N5/455—Demodulation-circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/04—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier
    • H04N7/045—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier the carrier being frequency modulated

Landscapes

  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Burglar Alarm Systems (AREA)
  • Television Systems (AREA)
  • Noise Elimination (AREA)
  • Transmitters (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Television Receiver Circuits (AREA)
  • Optical Head (AREA)
  • Inorganic Insulating Materials (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Selective Calling Equipment (AREA)

Abstract

DESMODULADOR DE FRECUENCIA MODIFICADO. SE COMPONE DE: UN ATENUADOR ELECTRONICO (44); UN CIRCUITO DE MANDO (46) AUTOMATICO DE GANANCIA; UN FILTRO ADAPTATIVO (50) FORMADO POR UN AMPLIFICADOR (48) DE SEÑAL DE NIVEL, UN FILTRO FIJO (60) DE TIPO LC, UN SUMADOR (62), UNA LINEA DE RETARDO (64) Y UN ATENUADOR ELECTRONICO (66); UNA CELULA DE DESACENTUACION (54); UN CIRCUITO DE MANDO DE BANDA PASANTE (58); UN DISCRIMINADOR DE FRECUENCIA (70) CON UNA LINEA DE RETARDO (74) Y UN MODULADOR DE ANILLO (76); UN CIRCUITO (110) DE TRATAMIENTO DE SEÑAL DE IMAGEN; UN CIRCUITO (112) DE TRATAMIENTO DE LA SEÑAL NUMERICA QUE PROPORCIONA LA SEÑAL DE SINCRONIZACION SOBRE UNA ENTRADA (114) DEL CIRCUITO Y FILTROS PASO BAJO (116, 118) DE DOS VIAS.
ES544470A 1984-06-04 1985-06-04 Perfeccionamientos en los desmoduladores de frecuencia Expired ES8609858A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8408727A FR2565445B1 (fr) 1984-06-04 1984-06-04 Demodulateur de frequence et recepteur d'emission de television a multiplexage temporel en comportant application

Publications (2)

Publication Number Publication Date
ES8609858A1 true ES8609858A1 (es) 1986-07-16
ES544470A0 ES544470A0 (es) 1986-07-16

Family

ID=9304674

Family Applications (1)

Application Number Title Priority Date Filing Date
ES544470A Expired ES8609858A1 (es) 1984-06-04 1985-06-04 Perfeccionamientos en los desmoduladores de frecuencia

Country Status (11)

Country Link
US (1) US4713689A (es)
EP (1) EP0169093B1 (es)
JP (1) JPS612459A (es)
AT (1) ATE46992T1 (es)
CA (1) CA1278857C (es)
DE (1) DE3573500D1 (es)
DK (1) DK166188C (es)
ES (1) ES8609858A1 (es)
FR (1) FR2565445B1 (es)
NO (1) NO167429C (es)
PT (1) PT80586B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3605048A1 (de) * 1986-02-18 1987-09-03 Ant Nachrichtentech Verfahren zum demodulieren von fm-modulierten signalen, deren eingenommene hf-bandbreiten sich periodisch, entsprechend dem modulierenden basisband-zeitmultiplexsignal aendern, sowie anordnungen zum durchfuehren
NL8800849A (nl) * 1988-04-05 1989-11-01 Philips Nv Ontvanger, alsmede demodulatieschakeling geschikt voor de ontvanger.
FR2649273B1 (fr) * 1989-06-30 1991-09-13 Portenseigne Radiotechnique Dispositif d'egalisation autoadaptative pour des echantillons numeriques codes en duobinaire
JP2900594B2 (ja) * 1990-11-21 1999-06-02 日本鋼管株式会社 水平連続鋳造の引抜き制御方法
GB9028098D0 (en) * 1990-12-27 1991-02-13 Ferguson Ltd Television receiver
AU8495698A (en) * 1997-07-17 1999-05-10 Wavo Corporation Method and system for transmitting and decoding data in a signal
JP3930180B2 (ja) * 1999-01-21 2007-06-13 富士通株式会社 デジタル信号復調回路及び方法
US7203457B1 (en) 1999-07-19 2007-04-10 Thomson Licensing Tuning system for achieving rapid signal acquisition for a digital satellite receiver
US6191725B1 (en) * 1999-08-30 2001-02-20 Her Majesty The Queen In Right Of Canada, As Represented By Minister Of National Defence Of Her Majesty's Canadian Government Automatic gain control for digital radar intercept receivers
FR2816780B1 (fr) * 2000-11-10 2003-01-31 Thomson Csf Procede et systeme de transmission par cryptographie quantique
FR2816779B1 (fr) * 2000-11-10 2003-03-07 Thomson Csf Procede et systeme de transmission par cryptographie quantique
WO2018109603A1 (en) * 2016-12-13 2018-06-21 Amimon Ltd. Analog signal transmission with multiple antennas

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984624A (en) * 1974-07-25 1976-10-05 Weston Instruments, Inc. Video system for conveying digital and analog information
FR2312881A1 (fr) * 1975-05-29 1976-12-24 Goff Jeannine Le Demodulateurs differentiels a dispositifs a ondes elastiques de surface
US4045740A (en) * 1975-10-28 1977-08-30 The United States Of America As Represented By The Secretary Of The Army Method for optimizing the bandwidth of a radio receiver
US4339829A (en) * 1978-12-29 1982-07-13 Dimon Donald F Automatic tuning system for a narrow bandwidth communication
US4245353A (en) * 1979-01-17 1981-01-13 Rockwell International Corporation Amplitude tilt correction apparatus
US4300161A (en) * 1980-03-03 1981-11-10 Bell Telephone Laboratories, Incorporated Time compression multiplexing of video signals
FR2481549A1 (fr) * 1980-04-25 1981-10-30 Thomson Brandt Dispositif de synthese et de demodulation combinees pour recepteurs d'ondes modulees en frequence et recepteur le comportant
US4435821A (en) * 1981-03-24 1984-03-06 Nippon Electric Co., Ltd. Receiver in a frequency hopping communication system
CA1190289A (en) * 1981-04-28 1985-07-09 Nippon Hoso Kyokai Fm signal demodulation system
JPS57184356A (en) * 1981-05-08 1982-11-13 Seiko Epson Corp Fsk demodulating circuit
US4527187A (en) * 1981-08-31 1985-07-02 Oki Electric Industry Co., Ltd. High sensitivity FM signal demodulation system
EP0086838B1 (en) * 1981-08-31 1986-11-20 Oki Electric Industry Company, Limited High-sensitivity fm signal demodulation system
DE3137843A1 (de) * 1981-09-23 1983-03-31 Robert Bosch Gmbh, 7000 Stuttgart Filter- und demodulationsschaltung
JPS59122089A (ja) * 1982-12-28 1984-07-14 Pioneer Electronic Corp テレビジョン帯域補正装置

Also Published As

Publication number Publication date
EP0169093A1 (fr) 1986-01-22
DK249785D0 (da) 1985-06-03
US4713689A (en) 1987-12-15
EP0169093B1 (fr) 1989-10-04
ATE46992T1 (de) 1989-10-15
ES544470A0 (es) 1986-07-16
NO852196L (no) 1985-12-05
DE3573500D1 (en) 1989-11-09
CA1278857C (en) 1991-01-08
DK166188C (da) 1993-08-09
PT80586B (pt) 1987-06-17
JPS612459A (ja) 1986-01-08
PT80586A (fr) 1985-07-01
NO167429B (no) 1991-07-22
DK166188B (da) 1993-03-15
NO167429C (no) 1991-10-30
FR2565445A1 (fr) 1985-12-06
DK249785A (da) 1985-12-05
FR2565445B1 (fr) 1986-10-10

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20020506