GB654174A - Improvements in or relating to circuits for detecting frequency-modulated oscillations - Google Patents
Improvements in or relating to circuits for detecting frequency-modulated oscillationsInfo
- Publication number
- GB654174A GB654174A GB33460/47A GB3346047A GB654174A GB 654174 A GB654174 A GB 654174A GB 33460/47 A GB33460/47 A GB 33460/47A GB 3346047 A GB3346047 A GB 3346047A GB 654174 A GB654174 A GB 654174A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- reactor
- coil
- circuit
- oscillator
- 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
- 230000010355 oscillation Effects 0.000 title abstract 7
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL267012X | 1946-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB654174A true GB654174A (en) | 1951-06-06 |
Family
ID=19781782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33460/47A Expired GB654174A (en) | 1946-11-02 | 1947-12-18 | Improvements in or relating to circuits for detecting frequency-modulated oscillations |
Country Status (7)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1102834B (de) * | 1959-07-16 | 1961-03-23 | Siemens Elektrogeraete Gmbh | UEberlagerungsempfaenger zum wahlweisen Empfang amplitudenmodulierter oder frequenzmodulierter Schwingungen |
| US3191124A (en) * | 1961-10-30 | 1965-06-22 | Avco Corp | Amplitude noise control gate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2263615A (en) * | 1940-04-06 | 1941-11-25 | Rca Corp | Frequency modulation detector |
| US2280525A (en) * | 1940-07-02 | 1942-04-21 | Rca Corp | Frequency modulated wave detector |
| US2332540A (en) * | 1941-02-27 | 1943-10-26 | Philco Radio & Television Corp | Method and apparatus for receiving frequency modulated waves |
| GB551344A (en) * | 1941-08-16 | 1943-02-18 | Cossor Ltd A C | Improvements relating to the frequency control of thermionic valve oscillators |
| US2440653A (en) * | 1944-11-14 | 1948-04-27 | Rca Corp | Locked-in oscillator circuits |
-
0
- NL NL69021D patent/NL69021C/xx active
- BE BE478151D patent/BE478151A/xx unknown
-
1947
- 1947-11-28 CH CH267012D patent/CH267012A/de unknown
- 1947-12-02 FR FR982097D patent/FR982097A/fr not_active Expired
- 1947-12-18 GB GB33460/47A patent/GB654174A/en not_active Expired
- 1947-12-23 US US793494A patent/US2623174A/en not_active Expired - Lifetime
-
1948
- 1948-11-04 DE DEP20540A patent/DE809669C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE478151A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) | |
| DE809669C (de) | 1951-08-02 |
| CH267012A (de) | 1950-02-28 |
| NL69021C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) | |
| US2623174A (en) | 1952-12-23 |
| FR982097A (fr) | 1951-06-04 |
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