Sensor device and method with at surface object sensing and away from surface object sensing
US8330474B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Mar 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04101
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems and devices are described for determining positional information for objects using a sensing device. The various embodiments provide improved user interface functionality by facilitating user input with both objects that are at the surfaced and objects that are away from the surface. The sensor device includes a processing system and a sensor array of sensing electrodes adapted to capacitively sense objects in a sensing region. First, the processing system is configured to determine positional information for objects at the surface in a first portion of the sensing region. Secondly, the processing system is configured to determine positional information for objects that are away from the surface and in a second portion of the sensing region, where the first portion of the sensing region is between the surface and the second portion of the sensing region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.