BE539151A - - Google Patents
Info
- Publication number
- BE539151A BE539151A BE539151DA BE539151A BE 539151 A BE539151 A BE 539151A BE 539151D A BE539151D A BE 539151DA BE 539151 A BE539151 A BE 539151A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
- H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Networks Using Active Elements (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE331705X | 1954-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE539151A true BE539151A (https=) |
Family
ID=6198638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE539151D BE539151A (https=) | 1954-06-21 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE539151A (https=) |
| CH (1) | CH331705A (https=) |
| FR (1) | FR1126293A (https=) |
| GB (1) | GB803662A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1048609B (https=) * | 1959-09-12 | 1959-01-15 |
-
0
- BE BE539151D patent/BE539151A/xx unknown
-
1955
- 1955-06-17 CH CH331705D patent/CH331705A/de unknown
- 1955-06-20 FR FR1126293D patent/FR1126293A/fr not_active Expired
- 1955-06-21 GB GB17937/55A patent/GB803662A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB803662A (en) | 1958-10-29 |
| CH331705A (de) | 1958-07-31 |
| FR1126293A (fr) | 1956-11-19 |