FR966138A - - Google Patents
Info
- Publication number
- FR966138A FR966138A FR966138DA FR966138A FR 966138 A FR966138 A FR 966138A FR 966138D A FR966138D A FR 966138DA FR 966138 A FR966138 A FR 966138A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
- H03B5/22—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator active element in amplifier being vacuum tube
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US747214A US2474261A (en) | 1947-05-10 | 1947-05-10 | Modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR966138A true FR966138A (fi) | 1950-09-30 |
Family
ID=25004131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR966138D Expired FR966138A (fi) | 1947-05-10 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2474261A (fi) |
| BE (1) | BE483044A (fi) |
| FR (1) | FR966138A (fi) |
| NL (1) | NL140220B (fi) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE486127A (fi) * | 1947-12-03 | |||
| US2636941A (en) * | 1950-04-25 | 1953-04-28 | Westinghouse Electric Corp | Frequency shift keying circuits |
| US2667536A (en) * | 1951-08-07 | 1954-01-26 | Bell Telephone Labor Inc | Carrier telegraph system |
| US2716218A (en) * | 1952-06-06 | 1955-08-23 | Rca Corp | Frequency variation circuit |
| BE525820A (fi) * | 1953-01-19 | |||
| US2906960A (en) * | 1953-09-05 | 1959-09-29 | Estey Organ Corp | Electrical musical instrument with frequency divider circuit |
| GB756060A (en) * | 1953-09-10 | 1956-08-29 | Vickers Electrical Co Ltd | Improvements relating to modulating circuits for electric oscillators |
| US2874216A (en) * | 1953-10-27 | 1959-02-17 | Gen Electric | Automatic signal control system |
| US2802937A (en) * | 1954-05-05 | 1957-08-13 | Bell Telephone Labor Inc | Teletypewriter station network including mobile station |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1831933A (en) * | 1929-04-18 | 1931-11-17 | Wired Radio Inc | Frequency modulation system |
| US1950759A (en) * | 1931-05-25 | 1934-03-13 | Frederick E Terman | Variable reactance circuit |
| US2382198A (en) * | 1942-05-16 | 1945-08-14 | Rca Corp | Oscillator stabilizing circuit |
| US2394427A (en) * | 1942-11-09 | 1946-02-05 | Rca Corp | Wave length modulation |
-
0
- NL NL676711139A patent/NL140220B/xx unknown
- FR FR966138D patent/FR966138A/fr not_active Expired
- BE BE483044D patent/BE483044A/xx unknown
-
1947
- 1947-05-10 US US747214A patent/US2474261A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE483044A (fi) | |
| US2474261A (en) | 1949-06-28 |
| NL140220B (nl) |