BE478223A - - Google Patents
Info
- Publication number
- BE478223A BE478223A BE478223DA BE478223A BE 478223 A BE478223 A BE 478223A BE 478223D A BE478223D A BE 478223DA BE 478223 A BE478223 A BE 478223A
- 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
- H03C3/245—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube by using semiconductor elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US718498A US2583138A (en) | 1946-12-26 | 1946-12-26 | Frequency modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE478223A true BE478223A (it) |
Family
ID=24886293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE478223D BE478223A (it) | 1946-12-26 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2583138A (it) |
| BE (1) | BE478223A (it) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3061802A (en) * | 1954-05-14 | 1962-10-30 | Electro Mechanical Res Inc | Frequency modulated crystal oscillator |
| US2853680A (en) * | 1955-05-06 | 1958-09-23 | Nuut August | Phase modulator |
| US3010016A (en) * | 1958-01-20 | 1961-11-21 | Motorola Inc | Remote tuning radio receiver |
| US3008095A (en) * | 1958-08-25 | 1961-11-07 | Arf Products | Frequency-modulated oscillator |
| US2980864A (en) * | 1959-08-14 | 1961-04-18 | Savage Ind Inc | Voltage controlled oscillator |
| US3127577A (en) * | 1960-06-30 | 1964-03-31 | Raytheon Co | Frequency controlled oscillator |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE17356E (en) * | 1929-07-02 | Piezo-electric resonator | ||
| US1447793A (en) * | 1921-08-19 | 1923-03-06 | Latour Marius | Radio receiving system |
| US1471418A (en) * | 1923-05-26 | 1923-10-23 | Charles Hanselmann | Tuning transformer |
| US2033231A (en) * | 1931-09-19 | 1936-03-10 | Rca Corp | Modulation system |
| US1998119A (en) * | 1932-08-19 | 1935-04-16 | Bell Telephone Labor Inc | Frequency changer and circuits therefor |
| GB491103A (en) * | 1937-04-12 | 1938-08-26 | Gen Electric Co Ltd | Improvements in or relating to electrical frequency changing apparatus |
| US2182377A (en) * | 1937-05-01 | 1939-12-05 | Radio Patents Corp | Method and means for tuning electric oscillatory circuits |
| US2222048A (en) * | 1938-11-23 | 1940-11-19 | Union Switch & Signal Co | Apparatus for the production of electric oscillations |
| US2306555A (en) * | 1940-05-23 | 1942-12-29 | Research Corp | Method for frequency control |
| US2298437A (en) * | 1940-06-05 | 1942-10-13 | Rca Corp | Frequency modulation |
| US2473556A (en) * | 1943-03-15 | 1949-06-21 | Carl A Wiley | Device for controlling oscillating circuits |
| US2424246A (en) * | 1943-09-16 | 1947-07-22 | Bell Telephone Labor Inc | Frequency-modulated crystal oscillator |
| US2461307A (en) * | 1944-11-13 | 1949-02-08 | Rauland Corp | Modulating system |
-
0
- BE BE478223D patent/BE478223A/xx unknown
-
1946
- 1946-12-26 US US718498A patent/US2583138A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2583138A (en) | 1952-01-22 |