BE473144A - - Google Patents
Info
- Publication number
- BE473144A BE473144A BE473144DA BE473144A BE 473144 A BE473144 A BE 473144A BE 473144D A BE473144D A BE 473144DA BE 473144 A BE473144 A BE 473144A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
- H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US616622A US2462905A (en) | 1945-09-15 | 1945-09-15 | Frequency modulated oscillating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE473144A true BE473144A (ja) |
Family
ID=24470285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE473144D BE473144A (ja) | 1945-09-15 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2462905A (ja) |
| BE (1) | BE473144A (ja) |
| CH (1) | CH270708A (ja) |
| ES (1) | ES179489A1 (ja) |
| FR (1) | FR938467A (ja) |
| GB (1) | GB614066A (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018009925A1 (en) * | 2016-07-08 | 2018-01-11 | Rensselaer Polytechnic Institute | High frequency push-push oscillator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2121737A (en) * | 1933-07-24 | 1938-06-21 | Rca Corp | Variable reactance modulator circuit |
| US2283793A (en) * | 1939-06-07 | 1942-05-19 | Emi Ltd | High frequency modulated radio signal transmitter |
| US2321269A (en) * | 1941-11-21 | 1943-06-08 | Rca Corp | Frequency modulation |
| US2382198A (en) * | 1942-05-16 | 1945-08-14 | Rca Corp | Oscillator stabilizing circuit |
| US2421725A (en) * | 1944-11-23 | 1947-06-03 | Philco Corp | Variable frequency cavity resonator oscillator |
-
0
- BE BE473144D patent/BE473144A/xx unknown
-
1945
- 1945-09-15 US US616622A patent/US2462905A/en not_active Expired - Lifetime
-
1946
- 1946-06-28 GB GB19413/46A patent/GB614066A/en not_active Expired
- 1946-11-15 FR FR938467D patent/FR938467A/fr not_active Expired
-
1947
- 1947-02-19 CH CH270708D patent/CH270708A/fr unknown
- 1947-08-28 ES ES0179489A patent/ES179489A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2462905A (en) | 1949-03-01 |
| CH270708A (fr) | 1950-09-15 |
| ES179489A1 (es) | 1947-10-16 |
| GB614066A (en) | 1948-12-09 |
| FR938467A (fr) | 1948-09-16 |