Pressure-sensing touch system utilizing optical and capacitive systems
US9557846B2 · kind B2 · utility
58Cited by
268References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2013 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Oct 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hybrid touch system that utilizes a combination of a capacitive touch system for position sensing and an optical touch system for pressure sensing is disclosed. The optical touch system includes a transparent sheet having a surface, at least one light source and at least one detector which are operably arranged relative to the transparent sheet to transmit light through the sheet and to detect the transmitted light. Performing position sensing using the capacitive touch system simplifies the pressure-sensing optical touch system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.