Touch-sensitive pushbutton switch
US9190999B2 · kind B2 · utility
1Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2007 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Nov 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96015
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A touch-sensitive pushbutton switch includes an optical sensor, in particular an infrared sensor, and an evaluation circuit. The evaluation circuit is able, through the use of a reference device, to set a sensitivity of the optical sensor in dependence on a detected basic level of an evaluation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.