BE474098A - - Google Patents
Info
- Publication number
- BE474098A BE474098A BE474098DA BE474098A BE 474098 A BE474098 A BE 474098A BE 474098D A BE474098D A BE 474098DA BE 474098 A BE474098 A BE 474098A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US679103A US2530937A (en) | 1946-06-25 | 1946-06-25 | Frequency modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474098A true BE474098A (fr) |
Family
ID=24725563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474098D BE474098A (fr) | 1946-06-25 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2530937A (fr) |
| BE (1) | BE474098A (fr) |
| FR (1) | FR948331A (fr) |
| GB (1) | GB628901A (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977095C (de) * | 1950-03-07 | 1965-01-28 | Siemens Ag | Elektrischer Zweipol in einer Schaltung fuer Frequenzmodulation, Frequenznachstellung oder den Abgleich von Messbrueckenanordnungen |
| DE977690C (de) * | 1950-03-07 | 1968-05-22 | Siemens Ag | Elektrischer Zweipol, der in seinem Blindwiderstandswert durch eine Steuergroesse veraenderbar ist |
| US2749310A (en) * | 1954-09-03 | 1956-06-05 | Shell Dev | Lubricating compositions |
| US3020493A (en) * | 1959-02-27 | 1962-02-06 | Hughes Aircraft Co | Frequency modulation circuit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2296962A (en) * | 1939-12-22 | 1942-09-29 | Rca Corp | Frequency modulation |
| US2354799A (en) * | 1940-07-26 | 1944-08-01 | Rca Corp | Phase modulation |
| US2436834A (en) * | 1942-11-17 | 1948-03-02 | Edwin K Stodola | Phase and frequency modulation |
| US2374000A (en) * | 1943-03-06 | 1945-04-17 | Rca Corp | Phase modulator |
| US2430126A (en) * | 1943-08-25 | 1947-11-04 | Rca Corp | Phase modulation |
-
0
- BE BE474098D patent/BE474098A/xx unknown
-
1946
- 1946-06-25 US US679103A patent/US2530937A/en not_active Expired - Lifetime
-
1947
- 1947-05-21 GB GB13661/47A patent/GB628901A/en not_active Expired
- 1947-06-24 FR FR948331D patent/FR948331A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR948331A (fr) | 1949-07-28 |
| GB628901A (en) | 1949-09-07 |
| US2530937A (en) | 1950-11-21 |