User interface of a keypad entry system for character input
US7095403B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2002 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Feb 14, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A user interface (102) of a portable electronic device (100) includes a plurality of keys (112). The user interface (102) includes a first group of keys representing vowel characters (402), and a second group of keys representing consonant characters (202). The second group of keys is separate from the first group of keys. For the first group of keys, a first key represents leading vowels (422, 424, 426), a second key represents above and below vowels (428, 430), and a third key represents following vowels (432, 434, 436). The second group of keys may be subdivided into phonetic consonant groups (FIGS. 5 & 6) or alphabetic consonant groups (FIGS. 7 & 8).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.