Method and apparatus for emulating touch and gesture events on a capacitive touch sensor
US9110543B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jan 6, 2012 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Nov 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
It is an object of the present invention to provide an apparatus and method for emulating touch and gesture events on a capacitive touch sensor array comprising: an electric field detection means for measuring the electric field intensity emitted as a function of time from a first plurality of scan electrodes of said capacitive touch sensor array; a predictive scan pattern means to infer the scan times and scan stimulus waveforms of a second plurality of scan electrodes at a plurality of emulated touch locations spanning an emulated gesture movement on said capacitive touch sensor array from said measured electric field intensity; and an electric field synthesizing means to create a time sequence of time variant electric fields coincident to said inferred scan time, and coherent and proportional to said inferred scan stimulus waveform for each said second plurality of scan electrodes; and a capacitive coupling means to couple said synthesized electric fields to said second plurality of electrodes inducing voltages which emulate time sequential touch events at said plurality of emulated touch locations animating said emulated gesture movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.