Audio keyboard button with varying output
US12211658B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2020 |
| Grant date | Jan 28, 2025 |
| Priority date | — |
| Expiry date | Jan 22, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/078
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a button for varying output based on force applied. The button comprises: a contact pad with at least two contacts, the contacts being arranged in a complementary pattern of interdigitated fingers with a separation therebetween; and an actuator and a conductive layer, the conductive layer being located between a base of the actuator and the contact pad and being independent of the actuator and contact pad, the base of the actuator being shaped to increase the surface area of the conductive layer in contact with the contacts as the actuator is pushed towards the contact pad. This increases current flow between the contacts in use as the force applied to the actuator increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.