BE411275A - - Google Patents
Info
- Publication number
- BE411275A BE411275A BE411275DA BE411275A BE 411275 A BE411275 A BE 411275A BE 411275D A BE411275D A BE 411275DA BE 411275 A BE411275 A BE 411275A
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Burglar Alarm Systems (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26464/34A GB445543A (en) | 1934-09-14 | 1934-09-14 | Improvements in or relating to electrical high frequency oscillating circuit arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE411275A true BE411275A (da) |
Family
ID=10244047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE411275D BE411275A (da) | 1934-09-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2097937A (da) |
| BE (1) | BE411275A (da) |
| FR (1) | FR794733A (da) |
| GB (1) | GB445543A (da) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2429762A (en) * | 1944-02-05 | 1947-10-28 | Rca Corp | Combined frequency modulation and amplitude modulation detector circuits |
| NL70931C (da) * | 1945-06-14 | |||
| DE977658C (de) * | 1945-09-07 | 1968-01-25 | Rca Corp | Detektor fuer phasenwinkelmodulierte Traegerfrequenzspannungen |
| US2533496A (en) * | 1946-04-18 | 1950-12-12 | Motorola Inc | Low-level bridge discriminator |
| US2773181A (en) * | 1951-10-25 | 1956-12-04 | Westinghouse Electric Corp | Frequency discriminator system |
| US2794912A (en) * | 1953-09-23 | 1957-06-04 | Gen Electric | Frequency modulation detector |
| US2836716A (en) * | 1953-09-23 | 1958-05-27 | Gen Electric | Angle modulation detector |
-
0
- BE BE411275D patent/BE411275A/xx unknown
-
1934
- 1934-09-14 GB GB26464/34A patent/GB445543A/en not_active Expired
-
1935
- 1935-09-12 FR FR794733D patent/FR794733A/fr not_active Expired
- 1935-10-08 US US44045A patent/US2097937A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR794733A (fr) | 1936-02-24 |
| GB445543A (en) | 1936-04-14 |
| US2097937A (en) | 1937-11-02 |