System and method for mathematically independent signaling in gradient sensor devices
US9134827B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2011 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Aug 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0445
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processing system for an input device includes a transmitter module, a receiver module, and a determination module. The transmitter module is configured to simultaneously drive a first end of a transmitter electrode with a first drive signal and drive a second end of the transmitter electrode with a second drive signal to produce a voltage gradient across the transmitter electrode, wherein the first drive signal and the second drive signal are mathematically independent. The receiver module is configured to receive a resulting signal with a receiver electrode, the resulting signal comprising effects of the voltage gradient. The determination module is configured to determine positional information for an input object based on the resulting signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.