NL6617292A - - Google Patents
Info
- Publication number
- NL6617292A NL6617292A NL6617292A NL6617292A NL6617292A NL 6617292 A NL6617292 A NL 6617292A NL 6617292 A NL6617292 A NL 6617292A NL 6617292 A NL6617292 A NL 6617292A NL 6617292 A NL6617292 A NL 6617292A
- Authority
- NL
- Netherlands
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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1965ST024743 DE1242274B (de) | 1965-12-10 | 1965-12-10 | Konferenzeinrichtung fuer Fernsprechnebenstellenanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6617292A true NL6617292A (US20030199744A1-20031023-C00003.png) | 1967-06-12 |
Family
ID=7460259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6617292A NL6617292A (US20030199744A1-20031023-C00003.png) | 1965-12-10 | 1966-12-09 |
Country Status (5)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3037690C2 (de) * | 1980-10-06 | 1982-12-23 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Verfahren und Schaltungsanordnung zum Aufbau von Konferenzverbindungen in einer Fernmelde-, insbesondere Fernsprechvermittlungsanlage |
| US4544804A (en) * | 1983-01-24 | 1985-10-01 | At&T Bell Laboratories | Conference control transfer arrangement |
| US4540850A (en) * | 1983-04-29 | 1985-09-10 | At&T Bell Laboratories | Method and apparatus for controlling a conference |
-
0
- GB GB1143667D patent/GB1143667A/en active Active
-
1965
- 1965-12-10 DE DE1965ST024743 patent/DE1242274B/de not_active Withdrawn
-
1966
- 1966-12-07 SE SE16725/66A patent/SE318624B/xx unknown
- 1966-12-09 NL NL6617292A patent/NL6617292A/xx unknown
- 1966-12-09 CH CH1764666A patent/CH460874A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE318624B (US20030199744A1-20031023-C00003.png) | 1969-12-15 |
| GB1143667A (US20030199744A1-20031023-C00003.png) | |
| CH460874A (de) | 1968-08-15 |
| DE1242274B (de) | 1967-06-15 |
