ES2045046T3 - Procedimiento y disposicion de circuito para la determinacion de la presencia o ausencia de al menos una frecuencia de valor conocido en unase¦al de entrada compuesta de varias frecuencias. - Google Patents
Procedimiento y disposicion de circuito para la determinacion de la presencia o ausencia de al menos una frecuencia de valor conocido en unase¦al de entrada compuesta de varias frecuencias.Info
- Publication number
- ES2045046T3 ES2045046T3 ES88114224T ES88114224T ES2045046T3 ES 2045046 T3 ES2045046 T3 ES 2045046T3 ES 88114224 T ES88114224 T ES 88114224T ES 88114224 T ES88114224 T ES 88114224T ES 2045046 T3 ES2045046 T3 ES 2045046T3
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- case
- known value
- signal
- absence
- 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
Links
Classifications
-
- 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
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
- H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0007—Frequency selective voltage or current level measuring
Landscapes
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Television Receiver Circuits (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Fuel Cell (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Circuits Of Receivers In General (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Radar Systems Or Details Thereof (AREA)
- Superheterodyne Receivers (AREA)
Abstract
PROCEDIMIENTO Y DISPOSICION DE CONEXION PARA LA COMPROBACION DE LA EXISTENCIA O NO DE AL MENOS UN VALOR CONOCIDO DE FRECUENCIA EN UNA SEÑAL DE ENTRADA COMPUESTA POR VARIAS FRECUENCIAS CONOCIDAS EN UNA SEÑAL DE CONEXION CUATRO MANDADO POR UNA FRECUENCIA DE REFERENCIA DE UN GENERADOR DE FRECUENCIAS (61) SON PRODUCIDAS CON LA FRECUENCIA A DETERMINAR DEPENDIENTE DE LAS FRECUENCIAS Y DE UNA DIFERENCIA DE FASES DE 90 Y SON MEZCLADAS EN CADA CASO UNA SEÑAL DE CONEXION CON LA SEÑAL DE ENTRADA EN CADA MEZCLADOR (55, 56, 57, 58) EN CADA CASO EL PRODUCTO DE MEZCLA DE DOS MEZCLADORES (55, 56, 57, 58) SON UNIDOS ADITIVAMENTE Y PARA EL FILTRADO DE PARTES DE CAMBIO, FILTRADOS POR EN CADA CASO UN FILTRO (27, 28) Y UNA PARTE DE TENSION CONTINUA CONTENIDA EN PRESENCIA DE FRECUENCIA DETERMINADA EN CADA PRODUCTO DE MEZCLA EN RELACION DE LA AMPLITUD QUE SEA VALORADA
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP88114224A EP0356555B1 (de) | 1988-08-31 | 1988-08-31 | Verfahren und Schaltungsanordnung zur Feststellung des Vorhandenseins oder Nichtvorhandenseins mindestens einer Frequenz bekannten Wertes in einem aus mehreren Frequenzen zusammengesetzten Eingangssignal |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2045046T3 true ES2045046T3 (es) | 1994-01-16 |
Family
ID=8199250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES88114224T Expired - Lifetime ES2045046T3 (es) | 1988-08-31 | 1988-08-31 | Procedimiento y disposicion de circuito para la determinacion de la presencia o ausencia de al menos una frecuencia de valor conocido en unase¦al de entrada compuesta de varias frecuencias. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4991015A (es) |
EP (1) | EP0356555B1 (es) |
JP (1) | JPH02105784A (es) |
AT (1) | ATE96596T1 (es) |
DE (1) | DE3885279D1 (es) |
DK (1) | DK426389A (es) |
ES (1) | ES2045046T3 (es) |
FI (1) | FI894070A (es) |
PT (1) | PT91581B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4006656C2 (de) * | 1990-03-03 | 2002-01-24 | Philips Corp Intellectual Pty | Schaltungsanordnung zum Detektieren von Kennschwingungen |
EP0512133B1 (de) * | 1991-05-03 | 1997-01-02 | Deutsche ITT Industries GmbH | Verfahren zur automatischen Suchlaufabstimmung von Satelliten-Fernsehtonträgern |
US5220683A (en) * | 1991-08-26 | 1993-06-15 | All Systems, Inc. | Ultra-widebandwidth compressive receiver |
DE4326524C1 (de) * | 1993-08-06 | 1994-12-15 | Siemens Ag | Schaltungsanordnung zur Feststellung des Vorhandenseins oder Nichtvorhandenseins mindestens einer Frequenz bekannten Wertes in einem aus mehreren Frequenzen zusammengesetzten Eingangssignal |
JP2616401B2 (ja) * | 1993-09-16 | 1997-06-04 | 日本電気株式会社 | パイロット信号検出回路 |
JP2699860B2 (ja) * | 1994-03-24 | 1998-01-19 | 日本電気株式会社 | パイロット信号検出回路およびパイロット信号検出方法 |
GB2491430B (en) * | 2012-03-16 | 2013-12-04 | Renesas Mobile Corp | Reconfigurable radio frequency circuits and methods of receiving |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT303845B (de) * | 1969-10-30 | 1972-12-11 | Uzinele Elektronica | Verfahren und Schaltungsanordnung für die Erzeugung von Frequenzmarken |
FR2138549B1 (es) * | 1971-05-19 | 1973-05-25 | Ibm France | |
US4139866A (en) * | 1976-02-18 | 1979-02-13 | Telesonics, Inc. | Stereophonic television sound transmission system |
US4281411A (en) * | 1979-06-25 | 1981-07-28 | Signatron, Inc. | High speed digital communication receiver |
DE3340325A1 (de) * | 1983-11-08 | 1985-05-15 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und schaltungsanordnung zur feststellung des vorhandenseins oder nichtvorhandenseins mindestens einer frequenz bekannten wertes in einem aus mehreren frequenzen zusammengesetzten eingangssignal |
US4591915A (en) * | 1984-04-18 | 1986-05-27 | Oak Industries Inc. | Remote volume control by means of frequency modulation feedback loop |
US4571622A (en) * | 1984-05-25 | 1986-02-18 | Oak Industries Inc. | Hybrid frequency modulation feedback loop remote volume control circuit |
EP0213222B1 (de) * | 1985-08-27 | 1989-03-29 | Deutsche ITT Industries GmbH | Fernsehtonempfangsschaltung für mindestens einen in einem HF-signal enthaltenen Tonkanal |
EP0308520B1 (de) * | 1987-08-26 | 1992-12-09 | Deutsche ITT Industries GmbH | Digitaler Demodulator |
-
1988
- 1988-08-31 AT AT88114224T patent/ATE96596T1/de active
- 1988-08-31 DE DE88114224T patent/DE3885279D1/de not_active Expired - Fee Related
- 1988-08-31 ES ES88114224T patent/ES2045046T3/es not_active Expired - Lifetime
- 1988-08-31 EP EP88114224A patent/EP0356555B1/de not_active Expired - Lifetime
-
1989
- 1989-08-28 JP JP1222782A patent/JPH02105784A/ja active Pending
- 1989-08-30 PT PT91581A patent/PT91581B/pt not_active IP Right Cessation
- 1989-08-30 FI FI894070A patent/FI894070A/fi not_active IP Right Cessation
- 1989-08-30 DK DK426389A patent/DK426389A/da not_active Application Discontinuation
-
1990
- 1990-07-05 US US07/548,202 patent/US4991015A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH02105784A (ja) | 1990-04-18 |
DK426389D0 (da) | 1989-08-30 |
FI894070A (fi) | 1990-03-01 |
US4991015A (en) | 1991-02-05 |
EP0356555B1 (de) | 1993-10-27 |
FI894070A0 (fi) | 1989-08-30 |
DK426389A (da) | 1990-03-01 |
EP0356555A1 (de) | 1990-03-07 |
DE3885279D1 (de) | 1993-12-02 |
PT91581B (pt) | 1995-07-18 |
ATE96596T1 (de) | 1993-11-15 |
PT91581A (pt) | 1990-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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