Parsimonious systems for touch detection and capacitive touch methods useful in conjunction therewith
US9239655B2 · kind B2 · utility
16Cited by
7References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2013 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Mar 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0443
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensing system comprising a set of touch surfaces in a touch panel including a population of touch surfaces; and at least one touch alert generator separately alerting for touch on each of, and both of, at least first and second touch surfaces from among the population of touch surfaces, wherein the alert generator is operative to determine capacitance of said first touch surface, determine touch object capacitance of said first and second touch surfaces, and compute a difference between the two capacitances, thereby to generate an approximation for touch object capacitance of said second touch surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.