Key unit
US12154732B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2022 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Dec 8, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/94036
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A key unit and a keyboard using the same are provided. The key unit includes a circuit board, a supporting assembly, a keycap, and a floating conductive structure. The circuit board includes a capacitance sensing circuit embedded therein, and the capacitance sensing circuit includes a pair of sensor electrodes which are spaced apart from each other. The supporting assembly is disposed on the circuit board. The keycap is moveably disposed above and spaced apart from the circuit board. The supporting assembly disposed between the keycap and the circuit board allows the keycap to be moved between a non-depressed position and a depressed position with respect to the circuit board. The floating conductive structure is disposed on the supporting assembly, and an orthogonal projection of the floating conductive structure on the circuit board overlaps with the pair of sensor electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.