FR1113390A - Détecteur de modulation de fréquence linéaire - Google Patents
Détecteur de modulation de fréquence linéaireInfo
- Publication number
- FR1113390A FR1113390A FR1113390DA FR1113390A FR 1113390 A FR1113390 A FR 1113390A FR 1113390D A FR1113390D A FR 1113390DA FR 1113390 A FR1113390 A FR 1113390A
- Authority
- FR
- France
- Prior art keywords
- frequency modulation
- linear frequency
- modulation detector
- detector
- linear
- 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
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
- H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
- H03D3/08—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of diodes, e.g. Foster-Seeley discriminator
- H03D3/10—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of diodes, e.g. Foster-Seeley discriminator in which the diodes are simultaneously conducting during the same half period of the signal, e.g. radio detector
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US385368A US2835802A (en) | 1953-10-12 | 1953-10-12 | Linear frequency modulation detector |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1113390A true FR1113390A (fr) | 1956-03-28 |
Family
ID=23521124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1113390D Expired FR1113390A (fr) | 1953-10-12 | 1954-10-12 | Détecteur de modulation de fréquence linéaire |
Country Status (2)
Country | Link |
---|---|
US (1) | US2835802A (fr) |
FR (1) | FR1113390A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1200891B (de) * | 1962-04-09 | 1965-09-16 | Pierre Brossard | Demodulator fuer frequenzmodulierte elektrische Hochfrequenzschwingungen |
DE1275632B (de) * | 1963-07-15 | 1968-08-22 | Fujitsu Ltd Comm And Electroni | Demodulator fuer frequenzmodulierte Schwingungen mit einer Verzoegerungsleitung |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2923882A (en) * | 1955-11-14 | 1960-02-02 | Henry K Bradford | Signalling apparatus |
US3012200A (en) * | 1957-10-18 | 1961-12-05 | Hurvitz Hyman | Frequency coincidence detector |
GB863585A (en) * | 1957-10-21 | 1961-03-22 | Gen Electric Co Ltd | Improvements in or relating to tunable discriminator circuits |
US3086175A (en) * | 1961-02-06 | 1963-04-16 | Westinghouse Electric Corp | Inductanceless fm discriminator |
US3764927A (en) * | 1971-12-07 | 1973-10-09 | Gen Datacomm Ind Inc | Wide band frequency discriminator |
JPS5222866A (en) * | 1975-08-15 | 1977-02-21 | Victor Co Of Japan Ltd | Demodulation system for angle modulated signal wave |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1613626A (en) * | 1918-09-30 | 1927-01-11 | Western Electric Co | Space discharge system |
US2230212A (en) * | 1932-06-20 | 1941-01-28 | Rca Corp | Signal receiver |
US2111737A (en) * | 1934-10-17 | 1938-03-22 | Rca Corp | Local oscillator circuit tuning device |
US2087429A (en) * | 1935-06-06 | 1937-07-20 | Rca Corp | Phase and frequency modulation wave receiving system |
US2302834A (en) * | 1940-12-03 | 1942-11-24 | Rca Corp | Discriminator-rectifier circuit |
NL136932B (fr) * | 1945-05-08 | |||
NL139712B (nl) * | 1947-02-20 | Shell Int Research | Drijvende opslaginrichting van het verdringingstype, in het bijzonder voor het opslaan van aardolie. | |
US2634369A (en) * | 1947-06-26 | 1953-04-07 | Standard Coil Prod Co Inc | Detector for frequency modulation receivers |
US2523043A (en) * | 1948-03-27 | 1950-09-19 | Gen Electric | Frequency modulation receiver system |
US2499742A (en) * | 1948-06-11 | 1950-03-07 | Bell Telephone Labor Inc | Frequency modulation detector |
US2496063A (en) * | 1948-07-23 | 1950-01-31 | Rca Corp | Automatic tuning circuit for radio receivers |
US2743361A (en) * | 1952-01-23 | 1956-04-24 | Motorola Inc | Selective squelch receiver |
-
1953
- 1953-10-12 US US385368A patent/US2835802A/en not_active Expired - Lifetime
-
1954
- 1954-10-12 FR FR1113390D patent/FR1113390A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1200891B (de) * | 1962-04-09 | 1965-09-16 | Pierre Brossard | Demodulator fuer frequenzmodulierte elektrische Hochfrequenzschwingungen |
DE1275632B (de) * | 1963-07-15 | 1968-08-22 | Fujitsu Ltd Comm And Electroni | Demodulator fuer frequenzmodulierte Schwingungen mit einer Verzoegerungsleitung |
Also Published As
Publication number | Publication date |
---|---|
US2835802A (en) | 1958-05-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH330870A (fr) | Goniomètre | |
FR1131189A (fr) | Oscillateur | |
FR1113390A (fr) | Détecteur de modulation de fréquence linéaire | |
FR1128810A (fr) | Diviseur de fréquence | |
FR68385E (fr) | Démodulateur de fréquence | |
CH353776A (de) | Radiodiversity-Empfangseinrichtung | |
FR1080677A (fr) | Perfectionnements aux vanues seeteur | |
FR1129797A (fr) | Récepteur radio à modulation de fréquence perfectionné | |
FR1114389A (fr) | Discriminateur de fréquence | |
FR1103962A (fr) | Modulateur de fréquence équilibré | |
FR1089088A (fr) | Couteau de saigneur | |
FR1114685A (fr) | Diviseur de fréquence | |
FR1107449A (fr) | Système de modulation | |
CH325324A (de) | Schaltungsanordnung zur Frequenzmodulation | |
FR1109385A (fr) | Transporteur | |
FR1101974A (fr) | Magnétron | |
FR1073517A (fr) | Arracheuse-nettoyeuse de pommes de terre | |
FR1092789A (fr) | Changeur de fréquence | |
FR1116869A (fr) | Enregistreur | |
CA490704A (fr) | Detecteur de modulation de frequence | |
FR1133815A (fr) | émetteur direct de basse fréquence | |
FR1091045A (fr) | Couche-culotte | |
FR1081834A (fr) | Perfectionnements à la modulation des émetteurs radio-électriques | |
FR1084234A (fr) | Fréquencemètre ferrodynamique | |
FR1112850A (fr) | Circuit discriminateur de fréquence |