ES8608258A1 - Un circuito de entrada de un receptor de television, para separar las componentes de muy alta frecuencia y ultra alta frecuencia de una senal combinada - Google Patents

Un circuito de entrada de un receptor de television, para separar las componentes de muy alta frecuencia y ultra alta frecuencia de una senal combinada

Info

Publication number
ES8608258A1
ES8608258A1 ES538210A ES538210A ES8608258A1 ES 8608258 A1 ES8608258 A1 ES 8608258A1 ES 538210 A ES538210 A ES 538210A ES 538210 A ES538210 A ES 538210A ES 8608258 A1 ES8608258 A1 ES 8608258A1
Authority
ES
Spain
Prior art keywords
uhf
vhf
receiver
section
filter section
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
ES538210A
Other languages
English (en)
Other versions
ES538210A0 (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.)
Philips North America LLC
US Philips Corp
Original Assignee
North American Philips Consumer Electronics Corp
US Philips Corp
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 North American Philips Consumer Electronics Corp, US Philips Corp filed Critical North American Philips Consumer Electronics Corp
Publication of ES8608258A1 publication Critical patent/ES8608258A1/es
Publication of ES538210A0 publication Critical patent/ES538210A0/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/46—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H7/466—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source particularly adapted as input circuit for receivers
    • 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

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

CIRCUITO DE ENTRADA PARA SEPARAR LAS COMPONENTES DE MUY ALTA FRECUENCIA (VHF) DE LAS COMPONENTES DE ULTRA ALTA FRECUENCIA (UHF), DE UNA SEÑAL COMBINADA DE VHF-UHF. COMPRENDE DOS TRAMOS O SECCIONES DE FILTRO DE PASO BAJO (26, 27) EN CASCADA, CONECTADOS EN SERIE ENTRE EL TERMINAL (11) DE ENTRADA UNICA Y LA ENTRADA DEL SINTONIZADOR DEL VHF, SIENDO EL TRAMO DE FILTRO DE PASO BAJO (26) ES DEL TIPO COMUNMENTE CONOCIDO COMO DE FILTRO EN T DE K CONSTANTE, Y SE CARACTERIZA POR ATENUAR SUSTANCIALMENTE LAS SEÑALES APLICADAS DE UNA FRECUENCIA SUPERIOR A LA DE CORTE PREFIJADA. EL SEGUNDO TRAMO DE FILTRO (27) ES DEL TIPO CONOCIDO EN GENERAL COMO DE DERIVACION EN M.
ES538210A 1983-12-05 1984-12-03 Un circuito de entrada de un receptor de television, para separar las componentes de muy alta frecuencia y ultra alta frecuencia de una senal combinada Expired ES8608258A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/558,226 US4567523A (en) 1983-12-05 1983-12-05 Television receiver input circuit

Publications (2)

Publication Number Publication Date
ES8608258A1 true ES8608258A1 (es) 1986-06-01
ES538210A0 ES538210A0 (es) 1986-06-01

Family

ID=24228686

Family Applications (1)

Application Number Title Priority Date Filing Date
ES538210A Expired ES8608258A1 (es) 1983-12-05 1984-12-03 Un circuito de entrada de un receptor de television, para separar las componentes de muy alta frecuencia y ultra alta frecuencia de una senal combinada

Country Status (3)

Country Link
US (1) US4567523A (es)
EP (1) EP0145076A3 (es)
ES (1) ES8608258A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3633383A1 (de) * 1985-11-02 1988-04-14 Telefunken Electronic Gmbh Fernsehtuner
DE3633384A1 (de) * 1986-10-01 1988-04-14 Telefunken Electronic Gmbh Fernsehtuner fuer drei unterschiedliche frequenzbereiche
DE3703406A1 (de) * 1987-02-05 1988-08-18 Philips Patentverwaltung Kombinierter zf-saug- und parallelkreis fuer einen fernseh-tuner
US4897624A (en) * 1989-02-23 1990-01-30 Thomson Consumer Electronics, Inc. Unitary capacitance trimmer
DE4132907A1 (de) * 1991-10-04 1993-04-08 Thomson Brandt Gmbh Filteranordnung
US5970386A (en) * 1997-01-27 1999-10-19 Hughes Electronics Corporation Transmodulated broadcast delivery system for use in multiple dwelling units
JP2005109799A (ja) * 2003-09-30 2005-04-21 Sharp Corp 受信装置
JP3922235B2 (ja) * 2003-10-14 2007-05-30 松下電器産業株式会社 高周波受信装置とそれに用いる集積回路
JP2010011406A (ja) * 2008-06-30 2010-01-14 Toshiba Corp テレビジョン放送受信装置
TWI581640B (zh) * 2014-09-09 2017-05-01 鴻海精密工業股份有限公司 信號合成電路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611198A (en) * 1970-05-04 1971-10-05 Zenith Radio Corp Frequency-selective coupling circuit for all-channel television antenna having uhf/vhf crossover network within uhf tuner
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
US4207532A (en) * 1978-12-14 1980-06-10 Rca Corporation Frequency signal splitting circuit

Also Published As

Publication number Publication date
ES538210A0 (es) 1986-06-01
EP0145076A3 (en) 1987-04-01
US4567523A (en) 1986-01-28
EP0145076A2 (en) 1985-06-19

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