Touch-sensitive surface
US9223446B2 · kind B2 · utility
2Cited by
15References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2011 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Jan 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/044
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A body part of a user touching a touch sensitive surface is determined based on a measured electrostatic signal. The electrostatic signal is transmitted by a transmitter and received by a receiver using a capacitively coupled human body as a communication channel. A touch signal is provided by the touch sensitive surface being touched by the user. The received electrostatic signal is measured in response to the touch signal and the body part of the user touching the touch sensitive surface is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.