Keyswitch using magnetic force
US9728353B2 · kind B2 · utility
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83References
3Claims
0Family size
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Key dates
| Filing date | Jan 13, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Jan 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2221/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A key for user input having superior tactile qualities. The key is suspended by a magnetic field force to improve the smoothness of motion. Two compact interleaved members link a keycap to a key base to provide highly precise parallel travel with reduced tilt and flexion, and improved durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.