BE469025A - - Google Patents
Info
- Publication number
- BE469025A BE469025A BE469025DA BE469025A BE 469025 A BE469025 A BE 469025A BE 469025D A BE469025D A BE 469025DA BE 469025 A BE469025 A BE 469025A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
- H03K3/05—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback
- H03K3/06—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
- H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/04—Position modulation, i.e. PPM
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL253844X | 1945-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE469025A true BE469025A (de) |
Family
ID=19781221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE469025D BE469025A (de) | 1945-11-09 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2573447A (de) |
| BE (1) | BE469025A (de) |
| CH (1) | CH253844A (de) |
| DE (1) | DE818814C (de) |
| FR (1) | FR935649A (de) |
| GB (2) | GB633403A (de) |
| NL (1) | NL80739C (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE908628C (de) * | 1950-07-20 | 1954-04-08 | Siemens Ag | Vorrichtung zur Frequenzmodulation |
| US3046496A (en) * | 1959-01-21 | 1962-07-24 | Rca Corp | Stabilized frequency modulated oscillator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2279659A (en) * | 1937-04-13 | 1942-04-14 | Rca Corp | Frequency modulator |
| US2306052A (en) * | 1940-12-21 | 1942-12-22 | Rca Corp | Phase modulation circuit |
| US2392114A (en) * | 1943-01-23 | 1946-01-01 | Gen Electric | Pulse system |
| GB565403A (en) * | 1943-02-05 | 1944-11-09 | Mullard Radio Valve Co Ltd | Improvements in and relating to phase modulators |
| US2426996A (en) * | 1944-08-17 | 1947-09-09 | Bell Telephone Labor Inc | Frequency modulation |
-
0
- NL NL80739D patent/NL80739C/xx active
- BE BE469025D patent/BE469025A/xx unknown
-
1946
- 1946-11-06 GB GB1386/49A patent/GB633403A/en not_active Expired
- 1946-11-06 GB GB33046/46A patent/GB623060A/en not_active Expired
- 1946-11-07 FR FR935649D patent/FR935649A/fr not_active Expired
- 1946-11-08 CH CH253844D patent/CH253844A/de unknown
-
1947
- 1947-01-11 US US721652A patent/US2573447A/en not_active Expired - Lifetime
-
1948
- 1948-11-04 DE DEP20513A patent/DE818814C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR935649A (fr) | 1948-06-24 |
| DE818814C (de) | 1951-10-29 |
| US2573447A (en) | 1951-10-30 |
| CH253844A (de) | 1948-03-31 |
| NL80739C (de) | |
| GB633403A (en) | 1949-12-12 |
| GB623060A (en) | 1949-05-11 |