BE474391A - - Google Patents
Info
- Publication number
- BE474391A BE474391A BE474391DA BE474391A BE 474391 A BE474391 A BE 474391A BE 474391D A BE474391D A BE 474391DA BE 474391 A BE474391 A BE 474391A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/042—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant with reactance tube
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- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US678263A US2457034A (en) | 1946-06-21 | 1946-06-21 | Arrangement for simulating a reactive impedance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474391A true BE474391A (US20080293856A1-20081127-C00150.png) |
Family
ID=24722087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474391D BE474391A (US20080293856A1-20081127-C00150.png) | 1946-06-21 |
Country Status (5)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2786183A (en) * | 1953-04-14 | 1957-03-19 | Bosch Arma Corp | Quadrature reduction circuit |
| US2948869A (en) * | 1955-12-27 | 1960-08-09 | Raytheon Co | Reactance networks |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2240428A (en) * | 1936-07-31 | 1941-04-29 | Philco Radio & Television Corp | Electrical circuits |
| BE442116A (US20080293856A1-20081127-C00150.png) * | 1940-02-29 | |||
| US2398793A (en) * | 1943-07-03 | 1946-04-23 | Galvin Mfg Corp | Radio receiving system |
-
0
- BE BE474391D patent/BE474391A/xx unknown
- NL NL133065A patent/NL133065B/xx unknown
-
1946
- 1946-06-21 US US678263A patent/US2457034A/en not_active Expired - Lifetime
-
1947
- 1947-05-19 GB GB13442/47A patent/GB640264A/en not_active Expired
- 1947-07-17 FR FR949990D patent/FR949990A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL133065B (US20080293856A1-20081127-C00150.png) | |
| GB640264A (en) | 1950-07-19 |
| FR949990A (fr) | 1949-09-14 |
| US2457034A (en) | 1948-12-21 |
