Intrinsically safe touch screen for process equipment
US8531422B2 · kind B2 · utility
0Cited by
11References
21Claims
0Family size
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Key dates
| Filing date | Sep 12, 2011 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Mar 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0416
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An intrinsically safe touch screen system includes a touch screen, a current limiting barrier coupled to the touch screen, a touch screen controller, and a voltage limiting barrier. The controller is coupled to the current limiting barrier, the voltage limiting barrier, and the touch screen, in a configuration such that signals transmitted to and from the touch screen will be within a level that ensures intrinsic safety of the touch screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.