System for detecting and locating defective crosspoint switches
US4860334A · kind A · utility
2Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1988 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Sep 23, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q1/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for detecting and locating defective crosspoint switches in a path consisting of a plurality of conducting segments connected by switch points is disclosed. The method and apparatus utilize the change in capacitance of the path which occurs when the switches are operated in a predetermined order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.