BE572020A - - Google Patents
Info
- Publication number
- BE572020A BE572020A BE572020DA BE572020A BE 572020 A BE572020 A BE 572020A BE 572020D A BE572020D A BE 572020DA BE 572020 A BE572020 A BE 572020A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F7/00—Parametric amplifiers
- H03F7/02—Parametric amplifiers using variable-inductance element; using variable-permeability element
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F7/00—Parametric amplifiers
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66400657A | 1957-06-06 | 1957-06-06 | |
| US850707XA | 1957-10-30 | 1957-10-30 | |
| US893082XA | 1958-03-26 | 1958-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE572020A true BE572020A (xx) |
Family
ID=31982224
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE567285D BE567285A (xx) | 1957-06-06 | ||
| BE572020D BE572020A (xx) | 1957-06-06 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE567285D BE567285A (xx) | 1957-06-06 |
Country Status (6)
| Country | Link |
|---|---|
| BE (2) | BE572020A (xx) |
| CH (1) | CH391799A (xx) |
| DE (2) | DE1094313B (xx) |
| FR (1) | FR1208249A (xx) |
| GB (3) | GB850036A (xx) |
| NL (3) | NL237429A (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3215941A (en) * | 1960-07-13 | 1965-11-02 | Hazeltine Research Inc | Traveling-wave parametric amplifier with idler frequency much higher than signal frequency and propagating on same line therewith |
| DE1275160B (de) * | 1961-12-29 | 1968-08-14 | Siemens Ag | Einrichtung zur parametrischen Erregung bzw. Verstaerkung elektromagnetischer Wellen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR890345A (fr) * | 1941-12-01 | 1944-02-04 | Telefunken Gmbh | Perfectionnements aux systèmes amplificateurs à plusieurs lampes électroniques |
| US2698398A (en) * | 1949-04-07 | 1954-12-28 | Univ Leland Stanford Junior | Traveling wave electron discharge device |
-
0
- NL NL232219D patent/NL232219A/xx unknown
- NL NL228439D patent/NL228439A/xx unknown
- BE BE567285D patent/BE567285A/xx unknown
- NL NL237429D patent/NL237429A/xx unknown
- BE BE572020D patent/BE572020A/xx unknown
-
1958
- 1958-05-22 DE DEW23385A patent/DE1094313B/de active Pending
- 1958-05-30 FR FR1208249D patent/FR1208249A/fr not_active Expired
- 1958-06-03 GB GB17710/58A patent/GB850036A/en not_active Expired
- 1958-06-05 CH CH6024958A patent/CH391799A/de unknown
- 1958-10-02 DE DEW24201A patent/DE1099007B/de active Pending
- 1958-10-06 GB GB31802/58A patent/GB850707A/en not_active Expired
-
1959
- 1959-03-20 GB GB9701/59A patent/GB893082A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE567285A (xx) | |
| GB893082A (en) | 1962-04-04 |
| NL232219A (xx) | |
| GB850036A (en) | 1960-09-28 |
| DE1094313B (de) | 1960-12-08 |
| CH391799A (de) | 1965-05-15 |
| DE1099007B (de) | 1961-02-09 |
| GB850707A (en) | 1960-10-05 |
| NL228439A (xx) | |
| FR1208249A (fr) | 1960-02-22 |
| NL237429A (xx) |