Trackpad with force sensing circuitry
US11604531B2 · kind B2 · utility
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23Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 4, 2019 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Mar 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04105
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one aspect, a trackpad includes: a substrate; a stiffener plate; a circuit board between the substrate and the stiffener plate, the circuit board comprising position detecting circuitry configured to detect a position of an object adjacent the substrate, the circuit board including an inductive element; a grounding element that electrically connects the stiffener plate and the circuit board to each other; and force sensing circuitry configured to detect force applied to the substrate, the force detected using the inductive element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.