BE795892A - Dispositif de conversion d'ondes modulees en frequence en ondes modulees en amplitude - Google Patents
Dispositif de conversion d'ondes modulees en frequence en ondes modulees en amplitudeInfo
- Publication number
- BE795892A BE795892A BE795892DA BE795892A BE 795892 A BE795892 A BE 795892A BE 795892D A BE795892D A BE 795892DA BE 795892 A BE795892 A BE 795892A
- Authority
- BE
- Belgium
- Prior art keywords
- modulated waves
- converting frequency
- amplitude
- frequency modulated
- amplitude modulated
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/50—Amplitude modulation by converting angle modulation to amplitude modulation
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7206662A FR2173688B1 (ja) | 1972-02-28 | 1972-02-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE795892A true BE795892A (fr) | 1973-06-18 |
Family
ID=9094230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE795892D BE795892A (fr) | 1972-02-28 | Dispositif de conversion d'ondes modulees en frequence en ondes modulees en amplitude |
Country Status (11)
Country | Link |
---|---|
US (1) | US3813617A (ja) |
JP (1) | JPS5740681B2 (ja) |
BE (1) | BE795892A (ja) |
CA (1) | CA1000372A (ja) |
CH (1) | CH570073A5 (ja) |
DE (1) | DE2304692C2 (ja) |
FR (1) | FR2173688B1 (ja) |
GB (1) | GB1349640A (ja) |
IT (1) | IT979307B (ja) |
NL (1) | NL174604C (ja) |
SE (1) | SE394062B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS596524B2 (ja) * | 1974-08-14 | 1984-02-13 | ソニー株式会社 | Fm−am変換装置 |
DE3124963A1 (de) * | 1981-06-25 | 1983-01-20 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Anordnung zur demodulation eines frequenzmodulierten eingangssignals |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB556208A (en) * | 1941-04-25 | 1943-09-24 | Standard Telephones Cables Ltd | Arrangement for conversion of frequency modulation to phase modulation and the application thereof to the production of a frequency modulated wave from a frequency stable oscillator |
US2976491A (en) * | 1958-05-21 | 1961-03-21 | Raytheon Co | Circuit responsive to amplitude and phase modulated wave and converting amplitude modulation into secondary phase modulation |
NL235487A (ja) * | 1959-01-26 | 1964-02-25 | ||
DE1200891B (de) * | 1962-04-09 | 1965-09-16 | Pierre Brossard | Demodulator fuer frequenzmodulierte elektrische Hochfrequenzschwingungen |
BE631621A (ja) * | 1962-05-02 | |||
FR1388796A (fr) * | 1963-12-03 | 1965-02-12 | Cft Comp Fse Television | Perfectionnements aux dispositifs de conversion d'une onde modulée en fréquence |
US3387220A (en) * | 1965-02-23 | 1968-06-04 | Automatic Elect Lab | Apparatus and method for synchronously demodulating frequency modulated differentially coherent duobinary signals |
-
0
- BE BE795892D patent/BE795892A/xx not_active IP Right Cessation
-
1972
- 1972-02-28 FR FR7206662A patent/FR2173688B1/fr not_active Expired
-
1973
- 1973-01-25 NL NLAANVRAGE7301087,A patent/NL174604C/xx not_active IP Right Cessation
- 1973-01-31 DE DE2304692A patent/DE2304692C2/de not_active Expired
- 1973-02-21 IT IT20625/73A patent/IT979307B/it active
- 1973-02-23 US US00335299A patent/US3813617A/en not_active Expired - Lifetime
- 1973-02-26 CH CH273873A patent/CH570073A5/xx not_active IP Right Cessation
- 1973-02-26 SE SE7302641A patent/SE394062B/xx unknown
- 1973-02-26 CA CA164,586A patent/CA1000372A/en not_active Expired
- 1973-02-27 GB GB961073A patent/GB1349640A/en not_active Expired
- 1973-02-27 JP JP48023675A patent/JPS5740681B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH570073A5 (ja) | 1975-11-28 |
FR2173688B1 (ja) | 1976-01-16 |
FR2173688A1 (ja) | 1973-10-12 |
DE2304692A1 (de) | 1973-09-13 |
SE394062B (sv) | 1977-05-31 |
CA1000372A (en) | 1976-11-23 |
DE2304692C2 (de) | 1984-05-03 |
JPS48101864A (ja) | 1973-12-21 |
JPS5740681B2 (ja) | 1982-08-30 |
NL7301087A (ja) | 1973-08-30 |
US3813617A (en) | 1974-05-28 |
IT979307B (it) | 1974-09-30 |
GB1349640A (en) | 1974-04-10 |
NL174604B (nl) | 1984-02-01 |
NL174604C (nl) | 1984-07-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1496141A (fr) | Générateur d'ondes modulées en fréquence | |
NL179962B (nl) | Amplitude/frequentieomzetter. | |
NL7507711A (nl) | Akoestische oppervlaktegolf-inrichting. | |
FR2282191A1 (fr) | Dispositif a ondes acoustiques superficielles | |
RO62365A (fr) | Couvercle pour container et dispositif de realisation | |
NL177870B (nl) | Golfpijpeenheid voor frequentie-omzettingsdoeleinden. | |
BE828863A (fr) | Dispositif pour l'emission d'ondes acoustiques par implosion | |
BE819691A (fr) | Dispositif de detection d'ondes de pression | |
BE821003A (fr) | Dispositif a ondes de surface acoustiques | |
BE778760A (fr) | Dispositif de transmission a basse frequence d'energie rayonnante | |
NL179859C (nl) | Akoestische oppervalktegolfinrichting. | |
NO148867C (no) | Anordning for aa frembringe amplitudemodulerte ultralydsendepulser | |
GB1440630A (en) | Frequency converting device | |
BE795892A (fr) | Dispositif de conversion d'ondes modulees en frequence en ondes modulees en amplitude | |
CH488341A (fr) | Appareil pour indiquer la présence de modulation d'amplitude dans la réception de signaux modulés en fréquence | |
BE798065A (fr) | Dispositif de detection d'une frequence | |
ZA731957B (en) | Wave height measuring device | |
IT994626B (it) | Disposizione circuitale per un ricevitore di segnali modulati in frequenza | |
FR2275779A1 (fr) | Dispositif de mesure de variations de frequence a l'aide d'ondes elastiques de surface | |
BE796562A (fr) | Dispositif de conversion d'energie | |
FR2282187A1 (fr) | Convertisseur modulation de frequence-modulation d'amplitude | |
BE846366R (fr) | Dispositif mobile pour engendrer dans le sol des ondes acoustiques transversables | |
BE797873A (fr) | Guide d'ondes rectangulaire, flexible et enroulable, pour la transmission d'ondes electromagnetiques | |
BE826514A (fr) | Dispositif filtre d'ondes de surfaces acoustiques | |
BE817174A (fr) | Demodulateur pour signaux modules en frequence |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: OFFICE DE RADIODIFFUSION TELEVISION FRANCAISE Effective date: 19860228 |