Optical proximity sensing with reduced pixel distortion
US11410631B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | May 5, 2021 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | May 5, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/0266
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of operating an optical proximity sensor of a computer device having a display, where the optical proximity sensor is located beneath or otherwise adjacent to the display. The method comprises obtaining a vertical synchronization signal from a display driver, and synchronizing periodic illumination of a light emitter of the optical proximity sensor with the vertical synchronization signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.