BE439707A - - Google Patents
Info
- Publication number
- BE439707A BE439707A BE439707DA BE439707A BE 439707 A BE439707 A BE 439707A BE 439707D A BE439707D A BE 439707DA BE 439707 A BE439707 A BE 439707A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H04B3/10—Control of transmission; Equalising by pilot signal
- H04B3/12—Control of transmission; Equalising by pilot signal in negative-feedback path of line amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US255812A US2208617A (en) | 1939-02-11 | 1939-02-11 | Signal transmission system |
| GB3622/40A GB538807A (en) | 1939-02-11 | 1940-02-27 | Electric signal transmission systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE439707A true BE439707A (en) | 1940-12-31 |
Family
ID=26238481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE439707D BE439707A (en) | 1939-02-11 | 1940-11-08 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2208617A (en) |
| BE (1) | BE439707A (en) |
| FR (1) | FR863363A (en) |
| GB (1) | GB538807A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2477028A (en) * | 1945-02-03 | 1949-07-26 | Wilkie Harry | Dual channel gain control |
| BE480692A (en) * | 1947-02-26 | |||
| US2867774A (en) * | 1952-12-17 | 1959-01-06 | Bell Telephone Labor Inc | Gain regulator for carrier systems |
| DE1060442B (en) * | 1956-06-29 | 1959-07-02 | Siemens Ag | Transmission system for the transmission of messages over lines with main amplifiers and unmanned, remotely fed intermediate amplifiers |
| NL223412A (en) * | 1956-12-21 | |||
| US3082381A (en) * | 1959-05-27 | 1963-03-19 | Goodyear Aircraft Corp | Automatic gain control circuit |
| DE1144773B (en) * | 1959-11-05 | 1963-03-07 | Int Standard Electric Corp | Circuit arrangement for regulating the level in communication systems with intermediate amplifiers |
-
1939
- 1939-02-11 US US255812A patent/US2208617A/en not_active Expired - Lifetime
-
1940
- 1940-02-09 FR FR863363D patent/FR863363A/en not_active Expired
- 1940-02-27 GB GB3622/40A patent/GB538807A/en not_active Expired
- 1940-11-08 BE BE439707D patent/BE439707A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2208617A (en) | 1940-07-23 |
| FR863363A (en) | 1941-04-01 |
| GB538807A (en) | 1941-08-18 |