CH270713A - Dispositif émetteur de courant modulé en fréquence. - Google Patents
Dispositif émetteur de courant modulé en fréquence.Info
- Publication number
- CH270713A CH270713A CH270713DA CH270713A CH 270713 A CH270713 A CH 270713A CH 270713D A CH270713D A CH 270713DA CH 270713 A CH270713 A CH 270713A
- Authority
- CH
- Switzerland
- Prior art keywords
- frequency modulated
- transmitter device
- modulated current
- current transmitter
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
- H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/002—Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
- H04B14/006—Angle modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Amplitude Modulation (AREA)
- Particle Accelerators (AREA)
- Ac-Ac Conversion (AREA)
- Microwave Amplifiers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR855417X | 1947-02-20 | ||
FR2558214X | 1948-02-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH270713A true CH270713A (fr) | 1950-09-15 |
Family
ID=32232282
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH270713D CH270713A (fr) | 1947-02-20 | 1948-03-10 | Dispositif émetteur de courant modulé en fréquence. |
CH276572D CH276572A (fr) | 1947-02-20 | 1948-12-13 | Dispositif générateur d'oscillations modulées en fréquence. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH276572D CH276572A (fr) | 1947-02-20 | 1948-12-13 | Dispositif générateur d'oscillations modulées en fréquence. |
Country Status (7)
Country | Link |
---|---|
US (2) | US2519836A (fr) |
BE (2) | BE483758A (fr) |
CH (2) | CH270713A (fr) |
DE (1) | DE855417C (fr) |
FR (3) | FR1003746A (fr) |
GB (2) | GB652473A (fr) |
NL (2) | NL66962C (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2682035A (en) * | 1950-10-26 | 1954-06-22 | Collins Radio Co | Linear frequency shift keying circuit |
BE509657A (fr) * | 1951-03-03 | |||
BE525820A (fr) * | 1953-01-19 | |||
DE968134C (de) * | 1953-04-05 | 1958-01-16 | Automatic Elect Lab | Schaltungsanordnung zur Erzeugung mehrerer Frequenzen fuer Vielkanaltelegrafie |
US2835802A (en) * | 1953-10-12 | 1958-05-20 | James R Day | Linear frequency modulation detector |
GB863585A (en) * | 1957-10-21 | 1961-03-22 | Gen Electric Co Ltd | Improvements in or relating to tunable discriminator circuits |
US3002159A (en) * | 1957-12-30 | 1961-09-26 | Daystrom Inc | Oscillator |
US2962670A (en) * | 1958-05-02 | 1960-11-29 | Electronic Eng Co | Modulatable transistor oscillator |
DE1271781B (de) * | 1964-04-23 | 1968-07-04 | Siemens Ag | Schaltung zur Winkelmodulation einer elektrischen Schwingung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE691878C (de) * | 1933-07-08 | 1940-06-07 | Rca Corp | Anordnung zur Umwandlung frequenz- oder phasenmodulierter Schwingungen |
US2087429A (en) * | 1935-06-06 | 1937-07-20 | Rca Corp | Phase and frequency modulation wave receiving system |
US2321269A (en) * | 1941-11-21 | 1943-06-08 | Rca Corp | Frequency modulation |
US2347398A (en) * | 1942-05-01 | 1944-04-25 | Rca Corp | Modulation system |
US2458574A (en) * | 1943-04-10 | 1949-01-11 | Rca Corp | Pulse communication |
-
0
- NL NL646405951A patent/NL139712B/xx unknown
- BE BE486292D patent/BE486292A/xx unknown
- BE BE483758D patent/BE483758A/xx unknown
- NL NL66962D patent/NL66962C/xx active
-
1947
- 1947-02-20 FR FR1003746D patent/FR1003746A/fr not_active Expired
- 1947-07-04 FR FR56849D patent/FR56849E/fr not_active Expired
-
1948
- 1948-02-25 FR FR1007109D patent/FR1007109A/fr not_active Expired
- 1948-02-26 US US11223A patent/US2519836A/en not_active Expired - Lifetime
- 1948-03-09 GB GB7262/48A patent/GB652473A/en not_active Expired
- 1948-03-10 CH CH270713D patent/CH270713A/fr unknown
- 1948-12-13 CH CH276572D patent/CH276572A/fr unknown
-
1949
- 1949-01-28 GB GB2357/49A patent/GB659174A/en not_active Expired
- 1949-02-23 US US77886A patent/US2558214A/en not_active Expired - Lifetime
-
1950
- 1950-09-13 DE DEC2144A patent/DE855417C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE483758A (fr) | |
FR1003746A (fr) | 1952-03-21 |
NL139712B (nl) | |
FR1007109A (fr) | 1952-05-02 |
US2519836A (en) | 1950-08-22 |
DE855417C (de) | 1952-11-13 |
CH276572A (fr) | 1951-07-15 |
GB659174A (en) | 1951-10-17 |
BE486292A (fr) | |
NL66962C (fr) | 1900-01-01 |
FR56849E (fr) | 1952-10-07 |
GB652473A (en) | 1951-04-25 |
US2558214A (en) | 1951-06-26 |
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