FR1230932A - - Google Patents
Info
- Publication number
- FR1230932A FR1230932A FR1230932DA FR1230932A FR 1230932 A FR1230932 A FR 1230932A FR 1230932D A FR1230932D A FR 1230932DA FR 1230932 A FR1230932 A FR 1230932A
- 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
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/347—Negative-feedback-circuit arrangements with or without positive feedback using transformers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/36—Repeater circuits
- H04B3/38—Repeater circuits for signals in two different frequency ranges transmitted in opposite directions over the same transmission path
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1131275X | 1958-07-26 | ||
| JP2365759A JPS37009162B1 (ru) | 1958-07-26 | 1959-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1230932A true FR1230932A (ru) | 1960-09-21 |
Family
ID=51845152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1230932D Expired FR1230932A (ru) | 1958-07-26 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS37009162B1 (ru) |
| DE (1) | DE1131275B (ru) |
| FR (1) | FR1230932A (ru) |
| NL (2) | NL109786C (ru) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3503002A (en) * | 1965-07-05 | 1970-03-24 | Cesare Valfre | Transistor negative impedance amplifier,stable in short circuit,particularly for telephone systems |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE878222C (de) * | 1951-04-26 | 1953-06-01 | Licentia Gmbh | Verstaerkerschaltung mit gleichzeitiger Strom- und Spannungsgegenkopplung |
| DE886925C (de) * | 1951-11-30 | 1953-08-17 | Telefunken Gmbh | Schaltung zur Verstaerkung elektrischer Schwingungen mit wenigstens zwei Rueckkopplungen |
| BE519695A (ru) * | 1952-05-05 | |||
| FR1086996A (fr) * | 1952-11-19 | 1955-02-17 | Western Electric Co | Compensation de la largeur de bande des circuits à transistor |
-
0
- FR FR1230932D patent/FR1230932A/fr not_active Expired
- NL NL229968D patent/NL229968A/xx unknown
- NL NL109786D patent/NL109786C/xx active
-
1959
- 1959-07-22 DE DEN17007A patent/DE1131275B/de active Pending
- 1959-07-24 JP JP2365759A patent/JPS37009162B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3503002A (en) * | 1965-07-05 | 1970-03-24 | Cesare Valfre | Transistor negative impedance amplifier,stable in short circuit,particularly for telephone systems |
Also Published As
| Publication number | Publication date |
|---|---|
| NL229968A (ru) | |
| NL109786C (ru) | |
| DE1131275B (de) | 1962-06-14 |
| JPS37009162B1 (ru) | 1962-07-24 |