Trackpad with capacitive force sensing
US10534451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2018 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Jun 1, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04105
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A trackpad includes: a substrate; a circuit board coupled to the substrate for detecting a position of an object adjacent the substrate, the circuit board including a first plate; a second plate including a spring element, wherein a spacer couples the circuit board and the spring element to each other, the spring element facilitating first movement of the substrate and the circuit board relative to the second plate; and a capacitive force sensor that detects a capacitance of the first plate and the second plate. A trackpad can include a spacer coupling the circuit board and the spring element to each other, and facilitating second movement of at least the substrate and the circuit board by a haptic feedback component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.