Keypad with cantilever keys
US8138436B2 · kind B2 · utility
1Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2009 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Nov 7, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus including: a substrate; a keypad including a plurality of distinct rigid elongate keys wherein each elongate key includes: a first end portion supported by the substrate and a second end portion separated by a dimension of the elongate key from the first end portion, and suspended from the substrate in free space by the elongate key; and a plurality of switches, wherein each switch detects travelling towards the substrate of the second end portion of a respective one of the plurality of elongate keys in response to user actuation of the second end portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.