Kind of multi-touch input device
US9122353B2 · kind B2 · utility
2Cited by
0References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2012 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Oct 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/013
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multi-touch method includes, in response to at least one finger of a user pointing toward a computer screen, recognizing an eye and at least one finger in an image frame taken by a camera; mapping a first coordinate of the recognized finger in the image frame to a second coordinate of the finger on the computer screen; mapping a third coordinate the recognized eye in the image frame to a fourth coordinate of the eye on the computer screen; determining whether the fourth coordinate is in the proximity of the second coordinate; in response to a positive decision, determining the second coordinate as a multi-touch point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.