Touch controller with signal combining and simultaneous I/Q demodulation
US10353518B2 · kind B2 · utility
3Cited by
11References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 14, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Apr 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04105
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An input device is configured to detect signals from of an input object. Examples include acquiring a first signal on a first sensor electrode of the input device; acquiring a second signal on a second sensor electrode of the input device; combining the first signal and the second signal to produce a combined signal; demodulating the combined signal to determine an in-phase component of the combined signal and a quadrature component of the combined signal; and combining the in-phase component and the quadrature component to determine signal magnitude information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.