Touch-based user interface conductive rings
US8686957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2010 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Sep 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03547
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus in which an outer conductive ring surrounds the periphery of a touch-sensitive surface of a touch sensor serving as a manually-operable control, wherein a portion of the outer conductive ring is also between the touch-sensitive surface and another manually-operable control that lacks the ability to sense the mere touch of a tip of a digit of a user. A processing device causes the level of capacitance of the outer conductive ring to be measured on a recurring basis for instances of an amount of additional capacitance above a minimum capacitance threshold, and employs such amounts of additional capacitance in a comparison to distinguish between the user interacting with a control surface defined on the touch-sensitive surface of the touch sensor or the other manually-operable control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.