Method for improving accuracy of touch screen event analysis by use of spatiotemporal touch patterns
US10606417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2014 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Sep 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of classifying touch screen events uses known non-random patterns of touch events over short periods of time to increase the accuracy of analyzing such events. The method takes advantage of the fact that after one touch event, certain actions are more likely to follow than others. Thus if a touch event is classified as a knock, and then within 500 ms a new event in a similar location occurs, but the classification confidence is low (e.g., 60% nail, 40% knuckle), the classifier may add weight to the knuckle classification since this touch sequence is far more likely. Knowledge about the probabilities of follow-on touch events can be used to bias subsequent classification, adding weight to particular events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.