Frequency-based noise removal
US12079428B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | Mar 20, 2023 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Mar 20, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic device samples radiofrequency signals measured by multiple antennas positioned across the digitizer, wherein the radiofrequency signals include noise components. The electronic device selects an orthogonal frequency outside the defined bandwidth of the working frequency and removes at least some of the noise components from the radiofrequency signals measured by each antenna based at least on a sense signal measured at the orthogonal frequency by the each antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.