LU63973A1 - - Google Patents
Info
- Publication number
- LU63973A1 LU63973A1 LU63973DA LU63973A1 LU 63973 A1 LU63973 A1 LU 63973A1 LU 63973D A LU63973D A LU 63973DA LU 63973 A1 LU63973 A1 LU 63973A1
- Authority
- LU
- Luxembourg
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 |
|---|---|---|---|
| DE19702048198 DE2048198C2 (de) | 1970-09-30 | 1970-09-30 | Schaltungsanordnung zur Herstellung von Konferenzverbindungen in einer PCM-Fernmelde-, insbesondere Fernsprechvermittlungsstelle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU63973A1 true LU63973A1 (de) | 1972-03-01 |
Family
ID=5783876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU63973D LU63973A1 (de) | 1970-09-30 | 1971-09-28 |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT314622B (de) |
| BE (1) | BE773329A (de) |
| CH (1) | CH548716A (de) |
| DE (1) | DE2048198C2 (de) |
| FR (1) | FR2108669A5 (de) |
| GB (1) | GB1336815A (de) |
| LU (1) | LU63973A1 (de) |
| NL (1) | NL7113445A (de) |
| SE (1) | SE366452B (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1027265A (en) * | 1975-04-23 | 1978-02-28 | Alan S.J. Chapman | Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system |
| GB8324058D0 (en) * | 1983-09-08 | 1983-10-12 | Plessey Co Plc | Conference bridge circuit arrangement |
-
1970
- 1970-09-30 DE DE19702048198 patent/DE2048198C2/de not_active Expired
-
1971
- 1971-09-10 CH CH1326971A patent/CH548716A/de not_active IP Right Cessation
- 1971-09-17 GB GB4338971A patent/GB1336815A/en not_active Expired
- 1971-09-22 AT AT822771A patent/AT314622B/de not_active IP Right Cessation
- 1971-09-28 LU LU63973D patent/LU63973A1/xx unknown
- 1971-09-28 FR FR7134942A patent/FR2108669A5/fr not_active Expired
- 1971-09-29 SE SE1235271A patent/SE366452B/xx unknown
- 1971-09-30 NL NL7113445A patent/NL7113445A/xx unknown
- 1971-09-30 BE BE773329A patent/BE773329A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT314622B (de) | 1974-04-10 |
| BE773329A (fr) | 1972-03-30 |
| DE2048198A1 (de) | 1972-05-04 |
| CH548716A (de) | 1974-04-30 |
| NL7113445A (de) | 1972-04-05 |
| DE2048198C2 (de) | 1975-10-09 |
| FR2108669A5 (de) | 1972-05-19 |
| DE2048198B2 (de) | 1972-05-04 |
| GB1336815A (en) | 1973-11-14 |
| SE366452B (de) | 1974-04-22 |