Virtual keypads for hands-free operation of computing devices
US11442582B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2021 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Mar 5, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2200/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes: detecting, at a computing device coupled to an image sensor, an input request; in response to detecting the input request, capturing a reference image via the image sensor, the reference image containing a virtual keypad having a set of virtual keys; detecting, in the reference image, the set of virtual keys; capturing, via the image sensor, a key-press image of the virtual keypad; detecting, in the key-press image, a subset of the virtual keys; comparing the set of virtual keys and the subset of virtual keys to identify a key-press obscuring one of the virtual keys; and returning input data corresponding to the obscured virtual key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.