Semiconductor device, character recognition device, and character recognition methods
US11494042B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Mar 3, 2021 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Mar 3, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor device includes: a sensor detecting electric capacitance of a touch key group comprising a plurality of touch keys arranged in a matrix; and a control device configured to perform character recognition based on a change in the electric capacitance of the plurality of touch keys detected by the sensor and on a sampling pattern that is time-series data of a loci.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.