Light assisted keyboard for mobile communication device
US7655901B2 · kind B2 · utility
58Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2005 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Nov 18, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0202
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A mobile communication device having a keyboard with a set of keys representing alpha-numeric characters, the keyboard comprising a light source, located within said mobile communication device; for providing a light; a set of sensors, associated with said keys, for sensing an amount of said light in a vicinity of each of said set of sensors, to determine which of said set of keys has been selected; and a transparent flat cover, overlying said set of sensors, displaying said set of alpha-numeric characters, for associating said set of alpha-numeric characters with said set of sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.