ES2046113A2 - Modulador con canal de salida variable. - Google Patents

Modulador con canal de salida variable.

Info

Publication number
ES2046113A2
ES2046113A2 ES9200919A ES9200919A ES2046113A2 ES 2046113 A2 ES2046113 A2 ES 2046113A2 ES 9200919 A ES9200919 A ES 9200919A ES 9200919 A ES9200919 A ES 9200919A ES 2046113 A2 ES2046113 A2 ES 2046113A2
Authority
ES
Spain
Prior art keywords
modulator
band
signal
channel
pass filter
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.)
Granted
Application number
ES9200919A
Other languages
English (en)
Other versions
ES2046113R (es
ES2046113B1 (es
Inventor
I Miquel Barba
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.)
Tagra SA
Original Assignee
Tagra 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 Tagra SA filed Critical Tagra SA
Priority to ES9200919A priority Critical patent/ES2046113B1/es
Publication of ES2046113A2 publication Critical patent/ES2046113A2/es
Publication of ES2046113R publication Critical patent/ES2046113R/es
Application granted granted Critical
Publication of ES2046113B1 publication Critical patent/ES2046113B1/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Amplitude Modulation (AREA)
  • Transmitters (AREA)

Abstract

MODULADOR CON CANAL DE SALIDA VARIABLE, QUE COMPRENDE TRES PARTES DIFERENCIADAS CORRESPONDIENTES A UN MODULADOR DE PRIMERA FRECUENCIA INTERMEDIA CONSTITUIDO POR UN MODULADOR DE DOBLE BANDA LATERAL Y UN FILTRO PASO BANDA VESTIGIAL; UN CONVERSOR A SEGUNDA FRECUENCIA INTERMEDIA FORMADO POR UN MEZCLADOR, UN OSCILADOR DE FRECUENCIA FIJA Y UN FILTRO PASO BANDA, Y UN CONVERSOR A CANAL DE SALIDA, COMPUESTO POR UN MEZCLADOR, UN OSCILADOR VARIABLE Y UN FILTRO PASO BANDA. DICHO MODULADOR, PARTIENDO DE UNA SEÑAL DE AUDIO Y VIDEO, OBTIENE UNA SEÑAL DE TV MODULADA EN AMPLITUD EN BANDA VESTIGIAL, DONDE EL CANAL DE DICHA SEÑAL PUEDE SER SELECCIONADO POR EL PROPIO USUARIO, CUMPLIENDOSE QUE DENTRO DE LA BANDA DE FRECUENCIA DE SALIDA NO APARECE NINGUNA SEÑAL INDESEADA, DE MODO QUE SE EVITA LA NECESIDAD DE INCLUIR UN FILTRO DE CANAL A LA SALIDA, SIENDO ASI LA SEÑAL SUSCEPTIBLE DE SER AMPLIFICADA EN BANDA ANCHA Y PUDIENDOSE POR TANTO ESTANDARIZAR LAS INSTALACIONES QUE UTILICEN DICHOS MODULADORES.
ES9200919A 1992-05-04 1992-05-04 Modulador con canal de salida variable. Expired - Lifetime ES2046113B1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9200919A ES2046113B1 (es) 1992-05-04 1992-05-04 Modulador con canal de salida variable.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9200919A ES2046113B1 (es) 1992-05-04 1992-05-04 Modulador con canal de salida variable.

Publications (3)

Publication Number Publication Date
ES2046113A2 true ES2046113A2 (es) 1994-01-16
ES2046113R ES2046113R (es) 1996-07-16
ES2046113B1 ES2046113B1 (es) 1997-02-16

Family

ID=8276898

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9200919A Expired - Lifetime ES2046113B1 (es) 1992-05-04 1992-05-04 Modulador con canal de salida variable.

Country Status (1)

Country Link
ES (1) ES2046113B1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2272140A1 (es) * 2004-12-22 2007-04-16 Angel Iglesias, S.A. Modulador de television doble banda lateral.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955155A (en) * 1974-12-23 1976-05-04 Rca Corporation Amplitude modulation system
DE2343532C3 (de) * 1972-08-31 1982-03-11 RCA Corp., 10020 New York, N.Y. Modulatorschaltung
US4602287A (en) * 1983-11-21 1986-07-22 Zenith Electronics Corporation Intermediate frequency filter with Nyquist phase modulation correction
ES8707640A1 (es) * 1986-05-14 1987-08-01 Fagor Electrotecnica Modulador para t.v. comunitaria
GB2219912A (en) * 1988-06-10 1989-12-20 British Broadcasting Corp Vestigial sideband amplitude modulated transmission system with additional data capacity
ES2021536A6 (es) * 1990-05-07 1991-11-01 Tagra Sa Modulador en banda vestigial para television.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2343532C3 (de) * 1972-08-31 1982-03-11 RCA Corp., 10020 New York, N.Y. Modulatorschaltung
US3955155A (en) * 1974-12-23 1976-05-04 Rca Corporation Amplitude modulation system
US4602287A (en) * 1983-11-21 1986-07-22 Zenith Electronics Corporation Intermediate frequency filter with Nyquist phase modulation correction
ES8707640A1 (es) * 1986-05-14 1987-08-01 Fagor Electrotecnica Modulador para t.v. comunitaria
GB2219912A (en) * 1988-06-10 1989-12-20 British Broadcasting Corp Vestigial sideband amplitude modulated transmission system with additional data capacity
ES2021536A6 (es) * 1990-05-07 1991-11-01 Tagra Sa Modulador en banda vestigial para television.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2272140A1 (es) * 2004-12-22 2007-04-16 Angel Iglesias, S.A. Modulador de television doble banda lateral.
ES2272140B1 (es) * 2004-12-22 2008-03-16 Angel Iglesias, S.A. Modulador de television doble banda lateral.

Also Published As

Publication number Publication date
ES2046113R (es) 1996-07-16
ES2046113B1 (es) 1997-02-16

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Legal Events

Date Code Title Description
RD2A Seizure of patent freed

Effective date: 19941115

EC2A Search report published

Effective date: 19940116

FA2A Application withdrawn

Effective date: 19980401