ES2090169T3 - Demodulador de fm agil para canal. - Google Patents
Demodulador de fm agil para canal.Info
- Publication number
- ES2090169T3 ES2090169T3 ES91107052T ES91107052T ES2090169T3 ES 2090169 T3 ES2090169 T3 ES 2090169T3 ES 91107052 T ES91107052 T ES 91107052T ES 91107052 T ES91107052 T ES 91107052T ES 2090169 T3 ES2090169 T3 ES 2090169T3
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- oscillator
- output
- demodulator
- mixed
- 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
- 239000000203 mixture Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
- H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/004—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
- H03L2207/10—Indirect frequency synthesis using a frequency multiplier in the phase-locked loop or in the reference signal path
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stereo-Broadcasting Methods (AREA)
- Circuits Of Receivers In General (AREA)
- Superheterodyne Receivers (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Noise Elimination (AREA)
- Television Receiver Circuits (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Abstract
SE SUMINISTRA UN DEMODULADOR PLL CON UNA AGIL CANALIZACION DE FRECUENCIA UTILIZANDO UN OSCILADOR PRECISO Y ESTABLE, TAL COMO UN VCXO TENIENDO SU FRECUENCIA DE SALIDA VARIABLE SOBRE UN PROMEDIO LIMITADO. LA SALIDA DEL OSCILADOR ES MULTIPLICADA POR UN FACTOR DE MULTIPLICACION PARA PRODUCIR UNA FRECUENCIA MEZCLADA. EL FACTOR DE MULTIPLICACION PONE EN ESCALA LA AMPLITUD LIMITADA DEL OSCILADOR PARA PRODUCIR UNA DESVIACION PROPORCIONAL DE FRECUENCIA MEZCLADA. SE UTILIZA UN SINTETIZADOR DE FRECUENCIA PARA PERMITIR AL DEMODULADOR DETECTAR SEÑALES EN CANALES DIFERENTES. EN UNA REALIZACION, LA SALIDA DEL SINTETIZADOR DE FRECUENCIA SE MEZCLA CON LA SALIDA DEL OSCILADOR EN ESCALA PARA DAR UNA MEZCLA DE FRECUENCIA TENIENDO UNA DESVIACION FIJADA PARA TODOS LOS CANALES.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/523,057 US5036291A (en) | 1990-05-11 | 1990-05-11 | On channel agile FM demodulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2090169T3 true ES2090169T3 (es) | 1996-10-16 |
Family
ID=24083494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES91107052T Expired - Lifetime ES2090169T3 (es) | 1990-05-11 | 1991-05-01 | Demodulador de fm agil para canal. |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US5036291A (es) |
| EP (1) | EP0456099B1 (es) |
| JP (1) | JPH0720017B2 (es) |
| AT (1) | ATE139874T1 (es) |
| CA (1) | CA2041678C (es) |
| DE (1) | DE69120468T2 (es) |
| DK (1) | DK0456099T3 (es) |
| ES (1) | ES2090169T3 (es) |
| FI (1) | FI102646B (es) |
| GR (1) | GR3021000T3 (es) |
| IE (1) | IE74864B1 (es) |
| NO (1) | NO178050C (es) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9320067D0 (en) * | 1993-09-29 | 1993-11-17 | Sgs Thomson Microelectronics | Demodulation of fm audio carrier |
| US5963098A (en) * | 1997-08-22 | 1999-10-05 | Technology Service Corporation | FM canceler loop to reduce shock and vibration effects in crystal oscillators |
| CA2289321A1 (en) * | 1998-12-22 | 2000-06-22 | Nortel Networks Corporation | Apparatus and method for versatile digital communication |
| TWI226150B (en) * | 2004-03-17 | 2005-01-01 | Mediatek Inc | Phase-locked loop with VCO tuning sensitivity compensation |
| NL1031209C2 (nl) * | 2006-02-22 | 2007-08-24 | Enraf Bv | Werkwijze en inrichting voor het nauwkeurig vaststellen van het niveau L van een vloeistof met behulp van naar het vloeistofniveau uitgestraalde radarsignalen en door het vloeistofniveau gereflecteerde radarsignalen. |
| NL1034327C2 (nl) * | 2007-09-04 | 2009-03-05 | Enraf Bv | Werkwijze en inrichting voor het binnen een bepaald meetbereik vaststellen van het niveau L van een vloeistof met behulp van naar het vloeistofniveau uitgestraalde radarsignalen en door het vloeistofniveau gereflecteerde radarsignalen. |
| US8271212B2 (en) * | 2008-09-18 | 2012-09-18 | Enraf B.V. | Method for robust gauging accuracy for level gauges under mismatch and large opening effects in stillpipes and related apparatus |
| US8659472B2 (en) * | 2008-09-18 | 2014-02-25 | Enraf B.V. | Method and apparatus for highly accurate higher frequency signal generation and related level gauge |
| US8224594B2 (en) * | 2008-09-18 | 2012-07-17 | Enraf B.V. | Apparatus and method for dynamic peak detection, identification, and tracking in level gauging applications |
| CN101753103A (zh) * | 2008-12-09 | 2010-06-23 | 博通集成电路（上海）有限公司 | 解调信号的装置 |
| TWI404340B (zh) * | 2009-11-23 | 2013-08-01 | Mstar Semiconductor Inc | 偏移式鎖相迴路發送器與其相關方法 |
| US9046406B2 (en) | 2012-04-11 | 2015-06-02 | Honeywell International Inc. | Advanced antenna protection for radars in level gauging and other applications |
| DE102017130390A1 (de) * | 2017-12-18 | 2019-06-19 | Infineon Technologies Ag | Testen von Eigenschaften eines spannungsgesteuerten Oszillators |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3530383A (en) * | 1966-11-18 | 1970-09-22 | Itt | Ultra-sensitive receiver |
| SE375868B (es) * | 1973-11-07 | 1975-04-28 | Facit Ab | |
| US4077016A (en) * | 1977-02-22 | 1978-02-28 | Ncr Corporation | Apparatus and method for inhibiting false locking of a phase-locked loop |
| FR2437733A1 (fr) * | 1978-08-30 | 1980-04-25 | Cit Alcatel | Procede de regeneration de l'onde porteuse de modulation d'un signal module comportant des raies symetriques par rapport a cette porteuse et dispositif de mise en oeuvre |
| FR2561468B1 (fr) * | 1984-03-13 | 1989-10-20 | Thomson Csf | Filtre actif hyperfrequence |
| US4633316A (en) * | 1984-11-14 | 1986-12-30 | Zenith Electronics Corporation | Stable low cost 4.5 MHz remodulator |
-
1990
- 1990-05-11 US US07/523,057 patent/US5036291A/en not_active Expired - Lifetime
-
1991
- 1991-04-26 IE IE140991A patent/IE74864B1/en not_active IP Right Cessation
- 1991-05-01 AT AT91107052T patent/ATE139874T1/de active
- 1991-05-01 ES ES91107052T patent/ES2090169T3/es not_active Expired - Lifetime
- 1991-05-01 DK DK91107052.2T patent/DK0456099T3/da active
- 1991-05-01 EP EP91107052A patent/EP0456099B1/en not_active Expired - Lifetime
- 1991-05-01 DE DE69120468T patent/DE69120468T2/de not_active Expired - Fee Related
- 1991-05-02 CA CA002041678A patent/CA2041678C/en not_active Expired - Fee Related
- 1991-05-08 JP JP3131653A patent/JPH0720017B2/ja not_active Expired - Fee Related
- 1991-05-09 FI FI912246A patent/FI102646B/fi active IP Right Grant
- 1991-05-10 NO NO911809A patent/NO178050C/no unknown
-
1996
- 1996-09-12 GR GR960402350T patent/GR3021000T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE69120468D1 (de) | 1996-08-01 |
| GR3021000T3 (en) | 1996-12-31 |
| EP0456099A2 (en) | 1991-11-13 |
| CA2041678C (en) | 1995-11-14 |
| DK0456099T3 (da) | 1996-11-04 |
| FI912246L (fi) | 1991-11-12 |
| IE74864B1 (en) | 1997-08-13 |
| HK1008406A1 (en) | 1999-05-07 |
| CA2041678A1 (en) | 1991-11-12 |
| EP0456099A3 (en) | 1991-12-18 |
| NO911809D0 (no) | 1991-05-10 |
| FI912246A0 (fi) | 1991-05-09 |
| JPH04252503A (ja) | 1992-09-08 |
| FI102646B1 (fi) | 1999-01-15 |
| EP0456099B1 (en) | 1996-06-26 |
| DE69120468T2 (de) | 1997-02-06 |
| IE911409A1 (en) | 1991-11-20 |
| FI102646B (fi) | 1999-01-15 |
| NO911809L (no) | 1991-11-12 |
| NO178050C (no) | 1996-01-10 |
| NO178050B (no) | 1995-10-02 |
| ATE139874T1 (de) | 1996-07-15 |
| JPH0720017B2 (ja) | 1995-03-06 |
| US5036291A (en) | 1991-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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