Equipment protection method and apparatus
US8429511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2009 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Dec 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/54558
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Equipment protection of a switch matrix (SM) in a network node, which contains a number of matrix modules (M1.1-M4.4, E1.5-E4.6) is achieved by slicing an input signal into k parallel signal slices (x(0)-x(3)) with k>2; coding the k signal slices into a number of n coded signal slices (x(0)-x(5)) with n>k+1 using an error correcting code to add redundancy to said input signal; switching said n coded signal slices through the switching matrix (SM) via n distinct matrix modules; and decoding the n coded signal slices into k decoded signal slices to correct errors introduced while passing through said switch matrix. Preferably, the switch matrix (SM) contains a first number of matrix boards (MB1-MB4, EB5, EB6), each carrying a second number of matrix modules (M1.1-M4.4, E1.5-E4.6). The n coded signal slices are switched via matrix modules on n distinct matrix boards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.