FR2444365A1 - Montage demodulateur a boucle de regulation de phase - Google Patents
Montage demodulateur a boucle de regulation de phaseInfo
- Publication number
- FR2444365A1 FR2444365A1 FR7930775A FR7930775A FR2444365A1 FR 2444365 A1 FR2444365 A1 FR 2444365A1 FR 7930775 A FR7930775 A FR 7930775A FR 7930775 A FR7930775 A FR 7930775A FR 2444365 A1 FR2444365 A1 FR 2444365A1
- Authority
- FR
- France
- Prior art keywords
- regulation loop
- phase regulation
- voltage
- demodulator assembly
- mixer
- 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.)
- Granted
Links
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
- H03D3/245—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 using at least twophase detectors in the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
- H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
- H03D1/2254—Homodyne or synchrodyne circuits using two quadrature channels and a phase locked loop
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Montage démodulateur comportant une boucle de régulation de phase constituée par un mélangeur, un filtre passe-bas et un oscillateur commandé en tension. Un au moins des paramètres de la boucle de régulation de phase - constitués par l'amplitude ûos du signal de sortie de l'oscillateur commandé en tension VCO, la sensibilité de modulation Kos du VCO, le gain en tension KV1 du filtre passe-bas TP1 et le gain KM1 du mélangeur M1 - varie en raison inverse de l'amplitude porteuse du signal d'entrée uE , afin que le produit des paramètres et de l'amplitude porteuse soit constant
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2853890A DE2853890C2 (de) | 1978-12-14 | 1978-12-14 | Verfahren zur Demodulation von phasen-, amplituden- oder frequenzmodulierten Signalen mit Hilfe eines Phasenregelkreises |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2444365A1 true FR2444365A1 (fr) | 1980-07-11 |
FR2444365B1 FR2444365B1 (fr) | 1985-09-06 |
Family
ID=6057089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7930775A Expired FR2444365B1 (fr) | 1978-12-14 | 1979-12-14 | Montage demodulateur a boucle de regulation de phase |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5583307A (fr) |
CA (1) | CA1158323A (fr) |
DE (1) | DE2853890C2 (fr) |
FR (1) | FR2444365B1 (fr) |
GB (1) | GB2039179B (fr) |
IT (1) | IT1127684B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0361746A2 (fr) * | 1988-09-26 | 1990-04-04 | Nec Corporation | Circuit de commande de phase automatique |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3146280A1 (de) * | 1981-11-21 | 1983-06-23 | AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang | Demodulatoren, deren regelinformation von einem leistungsdetektor gewonnen wird |
DE4223257C2 (de) * | 1992-07-15 | 1994-07-14 | Telefunken Microelectron | Schaltungsanordnung zur Demodulation des SECAM-Farbartsignals |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3060383A (en) * | 1958-12-04 | 1962-10-23 | Itt | Gain regulation circuit |
US3069625A (en) * | 1958-03-20 | 1962-12-18 | Nippon Electric Co | Reception system of high sensitivity for frequency-or phase-modulated wave |
GB925157A (en) * | 1960-06-29 | 1963-05-01 | Standard Telephones Cables Ltd | Circuit arrangement for effecting automatic frequency readjustment in television receivers |
US3209271A (en) * | 1961-08-17 | 1965-09-28 | Radiation Inc | Phase-locked loops |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU472567B2 (en) | 1972-01-20 | 1976-05-27 | National Aeronautics And Space Administration | Improved narrowband fm system for voice communications |
JPS52150922A (en) * | 1976-06-10 | 1977-12-15 | Sony Corp | Am receiver |
JPS6024640B2 (ja) * | 1976-11-25 | 1985-06-13 | 日本ビクター株式会社 | 多チヤンネル円盤レコ−ドから再生された角度変調波信号の復調装置 |
-
1978
- 1978-12-14 DE DE2853890A patent/DE2853890C2/de not_active Expired
-
1979
- 1979-12-06 GB GB7942100A patent/GB2039179B/en not_active Expired
- 1979-12-07 IT IT28007/79A patent/IT1127684B/it active
- 1979-12-14 CA CA000341968A patent/CA1158323A/fr not_active Expired
- 1979-12-14 FR FR7930775A patent/FR2444365B1/fr not_active Expired
- 1979-12-14 JP JP16174779A patent/JPS5583307A/ja active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3069625A (en) * | 1958-03-20 | 1962-12-18 | Nippon Electric Co | Reception system of high sensitivity for frequency-or phase-modulated wave |
US3060383A (en) * | 1958-12-04 | 1962-10-23 | Itt | Gain regulation circuit |
GB925157A (en) * | 1960-06-29 | 1963-05-01 | Standard Telephones Cables Ltd | Circuit arrangement for effecting automatic frequency readjustment in television receivers |
US3209271A (en) * | 1961-08-17 | 1965-09-28 | Radiation Inc | Phase-locked loops |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0361746A2 (fr) * | 1988-09-26 | 1990-04-04 | Nec Corporation | Circuit de commande de phase automatique |
EP0361746A3 (en) * | 1988-09-26 | 1990-06-20 | Nec Corporation | Automatic phase controlling circuit |
Also Published As
Publication number | Publication date |
---|---|
DE2853890A1 (de) | 1980-06-19 |
GB2039179A (en) | 1980-07-30 |
IT7928007A0 (it) | 1979-12-07 |
CA1158323A (fr) | 1983-12-06 |
IT1127684B (it) | 1986-05-21 |
FR2444365B1 (fr) | 1985-09-06 |
JPS6351406B2 (fr) | 1988-10-13 |
JPS5583307A (en) | 1980-06-23 |
DE2853890C2 (de) | 1986-03-13 |
GB2039179B (en) | 1983-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
CD | Change of name or company name | ||
ST | Notification of lapse |