BE773327A - Montage pour l'etablissement de communications collectives dansun central telephonique a modulation par impulsions codees - Google Patents
Montage pour l'etablissement de communications collectives dansun central telephonique a modulation par impulsions codeesInfo
- Publication number
- BE773327A BE773327A BE773327A BE773327A BE773327A BE 773327 A BE773327 A BE 773327A BE 773327 A BE773327 A BE 773327A BE 773327 A BE773327 A BE 773327A BE 773327 A BE773327 A BE 773327A
- Authority
- BE
- Belgium
- Prior art keywords
- establishment
- modulation
- assembly
- code pulses
- telephone center
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Time-Division Multiplex Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702048173 DE2048173C (de) | 1970-09-30 | Schaltungsanordnung zur Herstellung von Sammelverbindungen in einer PCM-Fernsprechvermittlungsstelle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE773327A true BE773327A (fr) | 1972-03-30 |
Family
ID=5783863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE773327A BE773327A (fr) | 1970-09-30 | 1971-09-30 | Montage pour l'etablissement de communications collectives dansun central telephonique a modulation par impulsions codees |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT314623B (fr) |
| BE (1) | BE773327A (fr) |
| CH (1) | CH548715A (fr) |
| FR (1) | FR2108675A5 (fr) |
| GB (1) | GB1338820A (fr) |
| IT (1) | IT938855B (fr) |
| LU (1) | LU63974A1 (fr) |
| NL (1) | NL7113375A (fr) |
| SE (1) | SE366896B (fr) |
-
1971
- 1971-09-09 CH CH1326271A patent/CH548715A/xx not_active IP Right Cessation
- 1971-09-21 GB GB4390671A patent/GB1338820A/en not_active Expired
- 1971-09-24 AT AT830771A patent/AT314623B/de not_active IP Right Cessation
- 1971-09-28 LU LU63974D patent/LU63974A1/xx unknown
- 1971-09-29 IT IT2925771A patent/IT938855B/it active
- 1971-09-29 NL NL7113375A patent/NL7113375A/xx unknown
- 1971-09-29 FR FR7134988A patent/FR2108675A5/fr not_active Expired
- 1971-09-30 SE SE1242271A patent/SE366896B/xx unknown
- 1971-09-30 BE BE773327A patent/BE773327A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1338820A (en) | 1973-11-28 |
| LU63974A1 (fr) | 1972-03-01 |
| DE2048173A1 (fr) | 1972-05-04 |
| AT314623B (de) | 1974-04-10 |
| NL7113375A (fr) | 1972-04-05 |
| FR2108675A5 (fr) | 1972-05-19 |
| SE366896B (fr) | 1974-05-06 |
| IT938855B (it) | 1973-02-10 |
| CH548715A (de) | 1974-04-30 |
| DE2048173B2 (de) | 1972-05-04 |
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