Double pre-loaded deflection webs for keypad
US9323344B2 · kind B2 · utility
0Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2013 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Jan 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A keypad for an electronic device is provided and includes a substrate, a plurality of frets disposed with the substrate and a plurality of mechanical keys disposed with the substrate and arrayed in rows interleaved among the plurality of frets, at least one of the keys being deflectable toward a position at which a switch of a circuit is affected and a capacitive sensor layer disposed between the frets and the keys and the substrate to register movement of a capacitive element across the frets and the keys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.