Qwerty-keyboard for mobile communication devices
US8125355B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Jul 29, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2221/016
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a mobile communication device, with a casing and a keypad comprising a plurality of keys and a plurality of rotatable key elements comprising a protrusion. Each key element is adapted to depress a first key in a first direction, when rotated in a first rotating direction, and depress a second key in said first direction, when rotated in a second rotating direction. Each key element is adapted to be rotated in said first rotating direction upon application of a force onto the protrusion in a second direction. Each key element is adapted to be rotated in said second rotating direction upon application of a force onto the protrusion in a third direction. The second and third direction is opposite to each other, and the first direction is perpendicular to said second and said third direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.