Input device
US7928963B2 · kind B2 · utility
10Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2007 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Feb 1, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2231/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An input device constructed in a carrier electronic apparatus comprises a letter button module and a number button module. The letter button module has a plurality of letter buttons to represent different letters respectively, and the number button module has a plurality of number buttons to represent different numbers respectively. The number buttons are separated from the letter buttons by being located in the intervals formed by adjacent rows of the letter buttons. The size, form, and color of the number buttons are different to those of the letter buttons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.