Apparatus and method for detecting fault in ATM switch
US5299209A · kind A · utility
10Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1991 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Oct 18, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5679
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus for detecting a fault in an ATM switch includes a stored cell number detection unit which detects a number of cells stored in the FIFO memory. A difference detection unit detects a difference between the number of cells stored in the FIFO memory and a predicted number of cells which must be stored in the FIFO memory. A difference evaluation unit determines whether or not the switch element has a fault on the basis of the difference detected by the the difference detection unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.