Voltage isolated detection apparatus and method
US7091728B2 · kind B2 · utility
1Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2004 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Aug 27, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A high-isolation call cord switch includes connectivity for a standard hospital-style push-button call cord while using low voltage alternating current to isolate detection circuitry from static electricity. An alternating current signal is used to permit transformer coupling, with its intrinsic isolation capability, between the call cord switch and the detection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.