ES2109337T3 - Procedimiento y circuito para sintonizacion fina de frecuencias, automatica y de alta precision. - Google Patents

Procedimiento y circuito para sintonizacion fina de frecuencias, automatica y de alta precision.

Info

Publication number
ES2109337T3
ES2109337T3 ES92902830T ES92902830T ES2109337T3 ES 2109337 T3 ES2109337 T3 ES 2109337T3 ES 92902830 T ES92902830 T ES 92902830T ES 92902830 T ES92902830 T ES 92902830T ES 2109337 T3 ES2109337 T3 ES 2109337T3
Authority
ES
Spain
Prior art keywords
frequency
circuit
automatic
tuning
integrated
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 - Lifetime
Application number
ES92902830T
Other languages
English (en)
Inventor
Rudolf Koblitz
Martin Rieger
Sabine Roth
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.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt 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 Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Application granted granted Critical
Publication of ES2109337T3 publication Critical patent/ES2109337T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/10—Circuit arrangements for fine tuning, e.g. bandspreading

Landscapes

  • Television Receiver Circuits (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
  • Networks Using Active Elements (AREA)

Abstract

LOS SISTEMAS CONOCIDOS DE SINTONIZACION FINA DE FRECUENCIA AUTOMATICA ANALOGICA, SON ADECUADOS Y NO PUEDEN SER COMPLETAMENTE INTEGRADOS EN RELACION, POR EJEMPLO, CON EL CIRCUITO DE RESONANCIA QUE REQUIERE. LOS SISTEMAS CONOCIDOS DE SINTONIZACION FINA DE FRECUENCIA AUTOMATICA DIGITAL PUEDEN SER ALTAMENTE PRECISOS, PERO REQUIEREN UNA SUPERFICIE DE CHIP COMPARATIVAMENTE GRANDE Y TIENEN UN ALTO CONSUMO DE POTENCIA. PARA ASEGURAR UNA SINTONIZACION FINA DE FRECUENCIA DE ALTA PRECISION EN PARTICULAR EN CANAL TV, POR EJEMPLO, SE PROPONE SEGUN LA INVENCION UN CIRCUITO ANALOGICO DE IGUALACION DE FRECUENCIA, POR EJEMPLO UN DEMODULADOR (23) FM, PARA SER IGUALADO EN UN CIRCUITO INTEGRADO MEDIANTE UNA CORRIENTE DE CONTROL (ICON). LA CORRIENTE DE CONTROL GENERADA EN UN LAZO DE CONTROL ES DEPENDIENTE DE UNA FRECUENCIA (FCH) DE REFERENCIA DE PRECISION ADECUADA E INTEGRADA CON UNA CAPACITANCIA DE REFERENCIA EN EL CHIP. SIGUIENDO LA SELECCION DE FRECUENCIA, EL CIRCUITO ANALOGICO ES CALIBRADO Y A CONTINUACIONSE SINTONIZA LA FRECUENCIA EN UN MODO DE MEDIDA. EL CIRCUITO ANALOGICO OPERA SUBSECUENTEMENTE EN EL MODO NORMAL.
ES92902830T 1991-01-29 1992-01-18 Procedimiento y circuito para sintonizacion fina de frecuencias, automatica y de alta precision. Expired - Lifetime ES2109337T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4102562A DE4102562A1 (de) 1991-01-29 1991-01-29 Verfahren und schaltung fuer eine automatische, hochpraezise frequenz-feinabstimmung

Publications (1)

Publication Number Publication Date
ES2109337T3 true ES2109337T3 (es) 1998-01-16

Family

ID=6423920

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92902830T Expired - Lifetime ES2109337T3 (es) 1991-01-29 1992-01-18 Procedimiento y circuito para sintonizacion fina de frecuencias, automatica y de alta precision.

Country Status (14)

Country Link
US (1) US5524289A (es)
EP (2) EP0569392B1 (es)
JP (1) JP3228929B2 (es)
KR (1) KR100188604B1 (es)
CN (1) CN1028586C (es)
AU (1) AU1165392A (es)
DE (2) DE4102562A1 (es)
ES (1) ES2109337T3 (es)
MX (1) MX9200359A (es)
MY (1) MY106797A (es)
SG (1) SG45445A1 (es)
TR (1) TR26875A (es)
WO (1) WO1992013389A1 (es)
ZA (1) ZA92611B (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG46175A1 (en) * 1996-01-10 1998-02-20 Philips Electronics Nv Tv/fm receiver for multi-media applications
GB2335808B (en) * 1998-03-24 2001-09-12 Ericsson Telefon Ab L M Demodulator circuits
GB2335807B (en) 1998-03-24 2001-12-12 Ericsson Telefon Ab L M Demodulator circuits
DE19921805C2 (de) * 1999-05-11 2002-06-27 X Fab Semiconductor Foundries FM/FSK-Demodulator mit automatischer Frequenzabstimmung
DE10112427A1 (de) * 2001-03-15 2002-09-19 Bosch Gmbh Robert Elektromotorische Stelleinheit für ein Zumeßsystem einer Brennkraftmaschine
EP1854978B1 (en) * 2006-05-11 2009-01-14 MAGNETI MARELLI POWERTRAIN S.p.A. Internal combustion engine throttle valve

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686574A (en) * 1970-08-19 1972-08-22 Hallicrafters Co Self-correcting afc system
DE2852839C2 (de) * 1978-12-07 1983-05-05 Loewe Opta Gmbh, 8640 Kronach Empfängerschaltung für ein Gerät der Nachrichtentechnik, insbesondere Rundfunk- und Fernsehempfänger, mit Kapazitätsdiodenabstimmung
US4245351A (en) * 1979-07-30 1981-01-13 Rca Corporation AFT Arrangement for a phase locked loop tuning system
DE2933416A1 (de) * 1979-08-17 1981-03-26 Siemens AG, 1000 Berlin und 8000 München Verfahren zur automatischen zf-korrektur von rundfunkgeraeten mit digital einstellbarer empfangsrequenz
US4358791A (en) * 1980-12-01 1982-11-09 Rca Corporation Phase locked loop tuning control system including a sync activated AFT signal seeking arrangement
US4466128A (en) * 1981-01-15 1984-08-14 Texas Instruments Incorporated Automatically centered pulsed FM receiver
JPS57171822A (en) * 1981-04-15 1982-10-22 Pioneer Electronic Corp Automatic channel selector of tuner
GB2217935A (en) * 1988-04-27 1989-11-01 Philips Electronic Associated Television receiving apparatus
DE3816696A1 (de) * 1988-05-17 1989-11-30 Philips Patentverwaltung Schaltungsanordnung zum synchronisieren eines in der frequenz steuerbaren oszillators
US4977613A (en) * 1988-10-17 1990-12-11 Motorola, Inc. Fine tuning frequency synthesizer with feedback loop for frequency control systems

Also Published As

Publication number Publication date
CN1028586C (zh) 1995-05-24
KR930703736A (ko) 1993-11-30
WO1992013389A1 (de) 1992-08-06
EP0569392B1 (de) 1997-10-01
KR100188604B1 (ko) 1999-06-01
MY106797A (en) 1995-07-31
EP0569392A1 (de) 1993-11-18
CN1063786A (zh) 1992-08-19
JP3228929B2 (ja) 2001-11-12
EP0501536A2 (de) 1992-09-02
US5524289A (en) 1996-06-04
AU1165392A (en) 1992-08-27
SG45445A1 (en) 1998-01-16
ZA92611B (en) 1993-07-29
EP0501536A3 (en) 1993-03-03
MX9200359A (es) 1992-07-01
TR26875A (tr) 1994-08-22
DE59208948D1 (de) 1997-11-06
DE4102562A1 (de) 1992-07-30
JPH06504661A (ja) 1994-05-26

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