Global Patent Index - EP 0998804 A1

EP 0998804 A1 2000-05-10 - SELF-HEALING MESHED NETWORK

Title (en)

SELF-HEALING MESHED NETWORK

Title (de)

SELBSTGENERIERENDES VERMASCHTES NETZWERK

Title (fr)

RESEAU

Publication

EP 0998804 A1 (EN)

Application

EP 98938663 A

Priority

  • EP 9803934 W
  • GB 9713802 A

Abstract (en)

[origin: GB2327020A] A self-healing meshed network includes protection rings in the form of a series of closed loops 42,44. Each node-to-node link 32,34 in the network is protected by a counter-propagating link 46,48 which forms a part of one of the closed loops. Each closed loop preferably passes through three or four of the network nodes 36,38,50. In the event of a cable break, traffic intended for the broken link can instead be routed into the protection ring at the head node, and routed back into the network at the tail node for onward transmission. The network is electrical, using twisted pairs or coaxial cable, or optical. Links can be uni-directional or bidirectional.

IPC 1-7 (main, further and additional classification)

H04L 12/437

IPC 8 full level (invention and additional information)

H04L 12/437 (2006.01)

CPC (invention and additional information)

H04L 12/437 (2013.01)

Citation (search report)

See references of WO 9901963A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

GB 2327020 A 19990106; GB 9713802 D0 19970903; AU 8729998 A 19990125; EP 0998804 A1 20000510; WO 9901963 A1 19990114

INPADOC legal status


2005-02-09 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040803

2004-05-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040323

2004-05-06 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

2000-05-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000124

2000-05-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE