BE451440A - - Google Patents
Info
- Publication number
- BE451440A BE451440A BE451440DA BE451440A BE 451440 A BE451440 A BE 451440A BE 451440D A BE451440D A BE 451440DA BE 451440 A BE451440 A BE 451440A
- 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
- H03C3/12—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 |
|---|---|---|---|
| NL250224X | 1942-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE451440A true BE451440A (xx) |
Family
ID=19781055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE451440D BE451440A (xx) | 1942-07-11 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2539952A (xx) |
| BE (1) | BE451440A (xx) |
| CH (1) | CH250224A (xx) |
| DE (1) | DE869358C (xx) |
| FR (1) | FR896849A (xx) |
| GB (1) | GB643712A (xx) |
| NL (2) | NL65812C (xx) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL75095C (xx) * | 1947-03-01 | |||
| US2683252A (en) * | 1950-05-25 | 1954-07-06 | Bendix Aviat Corp | Crystal controlled angle modulation system |
| DE976238C (de) * | 1953-05-28 | 1963-05-16 | Telefunken Patent | Schaltung eines rueckgekoppelten Roehrengenerators zur Frequenzmodulation mit grossem Frequenzhub |
| DE977479C (de) * | 1953-08-20 | 1966-08-04 | Siemens Ag | Schaltungsanordnung zur Frequenzmodulation |
| GB757629A (en) * | 1954-01-15 | 1956-09-19 | Marconi Wireless Telegraph Co | Improvements in or relating to reactance valve circuit arrangements |
| CN109387670B (zh) * | 2017-08-07 | 2020-12-29 | 中国科学院沈阳自动化研究所 | 一种基于差分降噪的sicm电压调制成像装置和方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2278429A (en) * | 1939-12-27 | 1942-04-07 | Rca Corp | Reactance tube modulation |
| US2298438A (en) * | 1940-10-17 | 1942-10-13 | Rca Corp | Frequency modulation system |
| GB551344A (en) * | 1941-08-16 | 1943-02-18 | Cossor Ltd A C | Improvements relating to the frequency control of thermionic valve oscillators |
| US2351368A (en) * | 1942-06-03 | 1944-06-13 | Rca Corp | Reactance tube |
| US2350171A (en) * | 1942-06-19 | 1944-05-30 | Rca Corp | Reactance controlled generator |
| US2356483A (en) * | 1942-07-02 | 1944-08-22 | Philco Radio & Television Corp | Frequency control system |
| US2394427A (en) * | 1942-11-09 | 1946-02-05 | Rca Corp | Wave length modulation |
| US2419527A (en) * | 1943-02-27 | 1947-04-29 | Gen Electric | Radio frequency transmitter monitoring system and method |
-
0
- NL NL106866D patent/NL106866B/xx unknown
- BE BE451440D patent/BE451440A/xx unknown
- NL NL65812D patent/NL65812C/xx active
-
1943
- 1943-07-09 DE DEN2573D patent/DE869358C/de not_active Expired
- 1943-07-09 CH CH250224D patent/CH250224A/de unknown
- 1943-07-29 FR FR896849D patent/FR896849A/fr not_active Expired
-
1946
- 1946-04-27 US US665391A patent/US2539952A/en not_active Expired - Lifetime
- 1946-07-04 GB GB20020/46A patent/GB643712A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB643712A (en) | 1950-09-27 |
| FR896849A (fr) | 1945-03-05 |
| NL106866B (xx) | |
| DE869358C (de) | 1953-03-05 |
| NL65812C (xx) | |
| US2539952A (en) | 1951-01-30 |
| CH250224A (de) | 1947-08-15 |