Method of mapping characters for a mobile telephone keypad
US7642932B2 · kind B2 · utility
1Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2005 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Dec 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a mobile communications device used in countries having a prevailing language with a large number of alphabet characters, the keypad is mapped alphabet into two groups and mapping each of the groups to the keypad to provide two independent modes of selection. The user can toggle from one mode to the other by operating a separate switch to enable selections from each of the alphabet groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.