Keyboard device and operation method thereof
US11048119B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 17, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Jul 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2221/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A keyboard device and an operating method thereof are provided. The keyboard device includes a microcontroller, a drive circuit, a backlight module, and a plurality of key units. The microcontroller is coupled to a computer device. A detection module of the computer device detects an input mode of the computer device. The plurality of key units is disposed on the backlight module. The plurality of key units each has a plurality of character symbols corresponding to different input modes. The microcontroller outputs a control signal to the drive circuit according to the input mode. The drive circuit drives the backlight module according to the control signal to selectively illuminate one of the plurality of character symbols of each of at least a portion of the plurality of key units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.