System for extended key actions and haptic feedback and optimized key layout for a solid-state keyboard and touchpad
US11507188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2021 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Jul 21, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/038
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A haptic keyboard of an information handling system may comprise a coversheet to identify an extended action key of the haptic keyboard, a support layer, a contact foil, and piezoelectric elements placed between the contact foil and support layer to receive an applied mechanical stress at the extended action key and generate an electric actuation signal. A controller may receive the electric actuation signal from a piezoelectric element placed under the mechanical stress, via the contact foil, and determine the level of mechanical stress applied to the piezoelectric element from the electric actuation signal to select an alphanumeric character from a plurality of alphanumeric characters based on the mechanical stress level applied to the extended action key and provide a response haptic feedback control signal to cause the piezoelectric element to generate haptic feedback.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.