Self-checking circuit, touch sensing device, and electronic device
US11275465B2 · kind B2 · utility
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27Claims
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Key dates
| Filing date | Oct 1, 2020 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Oct 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/955
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A self-checking circuit includes: an edge detector configured to output an edge detection signal having a pulse generated during detection of an edge of a pulse signal having a pulse train; a charging and discharging circuit configured to perform a charging operation and a discharging operation based on the edge detection signal to generate a detection voltage; and a comparison circuit configured to check whether the pulse signal is normal, based on the detection voltage, to output a checking signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.