Input device and mobile terminal having the input device
US8786548B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2010 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Apr 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An input device and a mobile terminal having the input device are provided. The input device includes a key button with a transparent material having an internal space, an illumination sensor located in an internal space of the key button to sense ambient illumination of the key button, a light-emitting portion located at one side of the illumination sensor to output a light signal to the outside of the key button for detecting a touch applied to the key button, and an input signal generation unit configured to generate a touch input signal according to the light signal being input to a light-receiving portion of the illumination sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.