Method and devices for establishing point-to-multipoint connections and multipoint-to-point connections
Abstract
The present invention relates to a method and apparatus for establishing point-to-multipoint connections (A14, A33, A34) and multipoint-to-point connections (B14, B15, B35) in a switching matrix of a plurality of stages (I , II, III) each having a plurality of switching modules (11-15, 21-25, 31-35). For this purpose, it is proposed if switch modules (21-25) are present in at least one stage (II), which, due to the design, also has point-to-multipoint connections (A14, A33, A34) as well as multipoint-to-point connections (B14, B15, B35), point-to-multipoint connections (A14, A33, A34) in switching modules (25) to switch, in which already more inputs than outputs are loaded with connections, and multipoint-to-point connections ( B14, B15, B35) of switching modules (24),

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Projected expiry passed 14 August 2018, 8.1 years ago.
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1 sheet
Sheet 1
Every citation, both waysCites: the store holds 1 of 2
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| US5451936A | Cites | United States of America | A | Search report | 1-5 |
| WON-BAE PARK ET AL: "SONET/SDH MULTICAST ROUTING ALGORITHMS IN SYMMETRICAL THREE STAGE NETWORKS", PROCEEDINGS OF THE 1995 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC'95), SEATTLE, WA, USA, 18 June 1995 (1995-06-18) - 22 June 1995 (1995-06-22), pages 1912 - 1917 Bd. 3, XP000535070, ISBN: 0-7803-2487-0 | Non-patent | – | – | Search report | – |
| TANAKA Y ET AL: "THREE-STAGE SWITCHING NETWORKS FOR N:1 MULTICONNECTION", ELECTRONICS & COMMUNICATIONS IN JAPAN, PART I : COMMUNICATIONS, vol. 71 (1988) Juli, no. 7, pages 66 - 74, XP000029338, ISSN: 8756-6621 | Non-patent | – | – | Search report | – |
7 members in 6 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 19741577 | Germany | A | |
| 19741577 | Germany | – | |
| 19741577 | – | – | – |
| DE1997141577 | – | – | – |
Members7
| Document | Office | Kind | |
|---|---|---|---|
| CA2245256A1 | Canada | A1 | |
| EP0903958A2 | European Patent Office (EPO) | A2 | |
| DE19741577A1 | Germany | A1 | |
| CN1213918A | China | A | |
| AU8308598A | Australia | A | |
| EP0903958A3This record | European Patent Office (EPO) | A3 | |
| US6418142B1 | United States of America | B1 |
11 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application deemed to be withdrawnWithdrawn18D | 18D | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | |
| Designation fees paidDE FI FR GB IT SEAKX | AKX | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAL;LT;LV;MK;RO;SIAX | AX | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAL;LT;LV;MK;RO;SIAX | AX | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 0903958
- Publication, DOCDB
- 0903958
- Publication, EPODOC
- EP0903958
- Application
- 98440174
- Application, DOCDB
- 98440174
- Application, EPODOC
- EP19980440174
Titles3
- German
- Verfahren und Vorrichtungen zum Aufbau von Punkt-zu-Mehrpunkt-Verbindungen und Mehrpunkt-zu-Punkt-Verbindungen
- English
- Method and devices for establishing point-to-multipoint connections and multipoint-to-point connections
- French
- Procédé et dispositifs pour établir des connexions point à multipoint et des connexions multipoint à point
Classification
- CPC, 3
- H04Q11/0478
- H04J2203/0019
- H04J2203/006
- IPC, 1
- H04Q11 04
Designated states2
- Contracting states, 1
- Sweden
- Extension states, 1
- Slovenia