Detection of type of object used to provide a touch contact input
US9983718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2015 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Dec 11, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0436
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A signal to be used to propagate a freely propagating signal through a propagating medium with a touch input surface is sent. The freely propagating signal has been allowed to freely propagate through the propagating medium in a plurality directions to a plurality of receivers on multiple axes of the propagating medium. A received signal detected due to a touch input object contacting the touch input surface is received. The received signal includes the freely propagating signal that has been disturbed by the touch input object. At least a portion of the received signal is compared with one or more reference signals of one or more touch input object types. Based at least in part on the comparison a location of the touch input object contacting the surface is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.