BE442895A - - Google Patents
Info
- Publication number
- BE442895A BE442895A BE442895DA BE442895A BE 442895 A BE442895 A BE 442895A BE 442895D A BE442895D A BE 442895DA BE 442895 A BE442895 A BE 442895A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H04B3/06—Control of transmission; Equalising by the transmitted signal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US284584A US2213034A (en) | 1939-07-15 | 1939-07-15 | Gain control circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE442895A true BE442895A (OSRAM) |
Family
ID=23090738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE442895D BE442895A (OSRAM) | 1939-07-15 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2213034A (OSRAM) |
| BE (1) | BE442895A (OSRAM) |
| FR (1) | FR866460A (OSRAM) |
| GB (1) | GB537944A (OSRAM) |
| NL (1) | NL63644C (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2533253A (en) * | 1945-09-17 | 1950-12-12 | Royal V Howard | Automatic regulating system and peak limiter |
| US2713620A (en) * | 1949-04-29 | 1955-07-19 | Phillips Petroleum Co | Automatic volume control system |
-
0
- NL NL63644D patent/NL63644C/xx active
- BE BE442895D patent/BE442895A/xx unknown
-
1939
- 1939-07-15 US US284584A patent/US2213034A/en not_active Expired - Lifetime
-
1940
- 1940-06-05 GB GB9813/40A patent/GB537944A/en not_active Expired
- 1940-07-15 FR FR866460D patent/FR866460A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2213034A (en) | 1940-08-27 |
| FR866460A (fr) | 1941-08-14 |
| NL63644C (OSRAM) | |
| GB537944A (en) | 1941-07-14 |