ES8502821A1 - Dispositivo de conexion de sintonizacion para los alcances de frecuencia de uhf y de vhf de television - Google Patents

Dispositivo de conexion de sintonizacion para los alcances de frecuencia de uhf y de vhf de television

Info

Publication number
ES8502821A1
ES8502821A1 ES533166A ES533166A ES8502821A1 ES 8502821 A1 ES8502821 A1 ES 8502821A1 ES 533166 A ES533166 A ES 533166A ES 533166 A ES533166 A ES 533166A ES 8502821 A1 ES8502821 A1 ES 8502821A1
Authority
ES
Spain
Prior art keywords
vhf
uhf
resonant circuit
inductor
switch
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
ES533166A
Other languages
English (en)
Other versions
ES533166A0 (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.)
Telefunken Electronic GmbH
Original Assignee
Telefunken Electronic GmbH
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 Telefunken Electronic GmbH filed Critical Telefunken Electronic GmbH
Publication of ES533166A0 publication Critical patent/ES533166A0/es
Publication of ES8502821A1 publication Critical patent/ES8502821A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

DISPOSITIVO DE CONEXION DE SINTONIZACION PARA LOS ALCANCES DE FRECUENCIA DE UHF Y DE VHF DE TELEVISION.CONSTA DE UN CIRCUITO DE RESONANCIA LAMBDA-MEDIO SINTONIZADO POR C3 Y CON DOS RAMAS (4, 5) EN PARALELO QUE MEDIANTE UN CONMUTADOR DE DIODO (11) Y BOBINAS COMPENSADORAS (9, 12, 13) PRODUCE LA FRECUENCIA SUPERIOR DE UHF O DEL ALCANCE I O III DE VHF, TENIENDO ADEMAS UNA SEGUNDA CAPACITANCIA DE SINTONIZACION A DIODO (8). EL PUNTO ALTO DEL CIRCUITO DE RESONANCIA ESTA CONECTADO A UN GRADO MEZCLADOR AUTO-OSCILANTE PARA UHF (S). EL CONMUTADOR SOLO ESTA CERRADO EN UHF Y EN FUNCIONAMIENTO DE VHF EL GRADO MEZCLADOR DE UHF ESTA CONECTADO COMO OSCILADOR DE VHF DEBIDO A UN TRANSISTOR CUYA RESISTENCIA DE ENTRADA EN ESTA FRECUENCIA ES MUY SUPERIOR A LA QUE TIENE EN FUNCIONAMIENTO DE UHF.
ES533166A 1983-06-11 1984-06-06 Dispositivo de conexion de sintonizacion para los alcances de frecuencia de uhf y de vhf de television Expired ES8502821A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3321262A DE3321262A1 (de) 1983-06-11 1983-06-11 Abstimmschaltung fuer die bereiche uhf- und vhf

Publications (2)

Publication Number Publication Date
ES533166A0 ES533166A0 (es) 1985-02-01
ES8502821A1 true ES8502821A1 (es) 1985-02-01

Family

ID=6201338

Family Applications (1)

Application Number Title Priority Date Filing Date
ES533166A Expired ES8502821A1 (es) 1983-06-11 1984-06-06 Dispositivo de conexion de sintonizacion para los alcances de frecuencia de uhf y de vhf de television

Country Status (9)

Country Link
EP (1) EP0128532A3 (es)
JP (1) JPS6041814A (es)
DE (1) DE3321262A1 (es)
ES (1) ES8502821A1 (es)
FI (1) FI842302A (es)
IN (1) IN160325B (es)
PT (1) PT78692B (es)
YU (1) YU99584A (es)
ZA (1) ZA844168B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584544A (en) * 1985-02-28 1986-04-22 Rca Corporation Bandswitched interstage coupling network including a high side coupled capacitor
US4598423A (en) * 1985-02-28 1986-07-01 Rca Corporation Tuning circuit for a multiband tuner
DE3821714A1 (de) * 1988-06-28 1990-01-04 Telefunken Electronic Gmbh Fernsehtuner
JP2794249B2 (ja) * 1992-06-15 1998-09-03 国際電気株式会社 高速同調フィルタ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2412689C3 (de) * 1974-03-16 1978-04-27 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur Abstimmung und Bereichs- bzw. Bandumschaltung eines HF-Schwingungskreises
DE2503785C3 (de) * 1975-01-30 1984-07-12 Telefunken electronic GmbH, 7100 Heilbronn Kombituner für die Frequenzbereiche UHF und VHF

Also Published As

Publication number Publication date
FI842302A (fi) 1984-12-12
PT78692A (pt) 1985-01-01
EP0128532A2 (de) 1984-12-19
IN160325B (es) 1987-07-04
EP0128532A3 (de) 1986-04-16
ES533166A0 (es) 1985-02-01
ZA844168B (en) 1985-04-24
PT78692B (de) 1986-07-11
DE3321262A1 (de) 1984-12-13
YU99584A (en) 1987-10-31
JPS6041814A (ja) 1985-03-05
FI842302A0 (fi) 1984-06-07

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