Finger tracking in an input device with proximity sensing
US11061520B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Oct 27, 2017 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Jul 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04101
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for increasing the proximity sensing distance of a touch and proximity sensitive touch sensor to thereby enable greater distance of detectability of a user in a proximity sensing mode of a touch sensor by driving a time varying voltage or drive signal onto a user who is also holding a touch sensor with at least one hand, and then sensing the drive signal from the user's fingers or thumb on sense electrodes that are on the touch sensor when the fingers are within a proximity sensing distance of sense electrodes in the touch sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.