Method and apparatus for active ultrasonic touch devices
US9477350B2 · kind B2 · utility
36Cited by
85References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2012 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Apr 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/043
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for determining a user indication is disclosed. The system includes a communication interface configured to send a signal to be used to propagate a freely propagating signal through a propagating medium with a surface and receive the freely propagating signal that has been disturbed by a disturbance on the surface. The system also includes a processor coupled to the communication interface and configured to process the received signal to determine a user indication associated with the disturbance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.