System and method for determining input object information from proximity and force measurements
US9411458B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2014 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Jan 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processing system for an input device having a sensing region overlapping an input surface and an array of sensor electrodes configured to form a plurality of proximity pixels and a plurality of force pixels. The processing system is configured to: determine a proximity image indicative of positional information for input objects; determine a force image indicative of local deflection of the input surface in response to force applied by the input objects; determine a respective group of proximity pixels from the proximity image corresponding to each input object; determine a respective group of force pixels from the force image corresponding to each determined group of proximity pixels; determine the position of each input object based on the determined groups of proximity pixels; and determine the force associated with each input object based on the determined groups of force pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.