BE449787A - - Google Patents
Info
- Publication number
- BE449787A BE449787A BE449787DA BE449787A BE 449787 A BE449787 A BE 449787A BE 449787D A BE449787D A BE 449787DA BE 449787 A BE449787 A BE 449787A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
-
- 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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL105285 | 1942-03-24 | ||
| NL130435 | 1947-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE449787A true BE449787A (es) |
Family
ID=26641556
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE480389D BE480389A (es) | 1942-03-24 | ||
| BE449787D BE449787A (es) | 1942-03-24 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE480389D BE480389A (es) | 1942-03-24 |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US2491921A (es) |
| BE (2) | BE449787A (es) |
| CH (2) | CH245234A (es) |
| DE (2) | DE886316C (es) |
| FR (2) | FR892818A (es) |
| GB (2) | GB619139A (es) |
| NL (2) | NL64974C (es) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2831632A (en) * | 1950-11-04 | 1958-04-22 | Westinghouse Electric Corp | Electronic speed controlling apparatus |
| US2750500A (en) * | 1951-09-06 | 1956-06-12 | Aiken William Ross | Linear pulse integrator |
| US2716212A (en) * | 1952-08-12 | 1955-08-23 | Raymond U Sims | Logarithmic discriminator |
| US2770727A (en) * | 1952-08-21 | 1956-11-13 | Arf Products | Double counter demodulator circuit |
| US2822510A (en) * | 1953-03-03 | 1958-02-04 | Gerald S Epstein | Series resonant frequency discriminator circuit |
| DE1020058B (de) * | 1954-12-31 | 1957-11-28 | Philips Nv | Vorrichtung zur Bestimmung der gegenseitigen prozentualen Abweichung der mittleren Wiederholungsfrequenz von Impulsquellen |
| US2840814A (en) * | 1955-03-22 | 1958-06-24 | Bendix Aviat Corp | Directional antenna control system |
| US3221260A (en) * | 1960-12-01 | 1965-11-30 | Bendix Corp | Frequency discriminator |
| NL273846A (es) * | 1961-01-24 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB368337A (en) * | 1930-12-02 | 1932-03-02 | Marconi Wireless Telegraph Co | Improvements in or relating to high frequency transmitters |
| US2131443A (en) * | 1933-05-18 | 1938-09-27 | Telefunken Gmbh | Signaling |
| US2279660A (en) * | 1937-04-13 | 1942-04-14 | Rca Corp | Wave length modulation system |
| US2214573A (en) * | 1938-02-17 | 1940-09-10 | Westinghouse Electric & Mfg Co | Modulation system |
| US2335796A (en) * | 1939-06-29 | 1943-11-30 | Rca Corp | Modulation limiter |
| US2307316A (en) * | 1941-02-13 | 1943-01-05 | Rca Corp | Frequency meter |
-
0
- NL NL68134D patent/NL68134C/xx active
- BE BE480389D patent/BE480389A/xx unknown
- NL NL64974D patent/NL64974C/xx active
- BE BE449787D patent/BE449787A/xx unknown
-
1943
- 1943-03-22 CH CH245234D patent/CH245234A/de unknown
- 1943-03-23 DE DEN2357D patent/DE886316C/de not_active Expired
- 1943-03-24 FR FR892818D patent/FR892818A/fr not_active Expired
-
1946
- 1946-04-26 US US665008A patent/US2491921A/en not_active Expired - Lifetime
- 1946-05-31 GB GB16548/46A patent/GB619139A/en not_active Expired
-
1948
- 1948-02-07 US US6954A patent/US2491922A/en not_active Expired - Lifetime
- 1948-02-13 CH CH266832D patent/CH266832A/de unknown
- 1948-02-13 GB GB4241/48A patent/GB641749A/en not_active Expired
- 1948-02-16 FR FR58021D patent/FR58021E/fr not_active Expired
- 1948-12-21 DE DEP25655A patent/DE895786C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR58021E (fr) | 1953-09-21 |
| DE895786C (de) | 1953-11-05 |
| CH245234A (de) | 1946-10-31 |
| GB641749A (en) | 1950-08-16 |
| GB619139A (en) | 1949-03-04 |
| BE480389A (es) | |
| US2491921A (en) | 1949-12-20 |
| NL68134C (es) | |
| NL64974C (es) | |
| CH266832A (de) | 1950-02-15 |
| FR892818A (fr) | 1944-05-22 |
| DE886316C (de) | 1953-08-13 |
| US2491922A (en) | 1949-12-20 |