Method and device for capacitive touch panel based biosignal measurement
US11432779B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2020 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/044
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Many capacitive sensing based biosignal measurements methods exist, which are generic as they do not personalize biosignal measurement. Further, are do not provide device agnostic solutions. A method and system for capacitive touch panel based biosignal measurement is provided. The method senses a change in raw capacitance value of a capacitive touch panel. However, unlike existing methods that directly utilize the raw signal for biosignal measurements, the method disclosed derives a normalized signal by normalizing a raw signal corresponding to the change in raw capacitance of the capacitive touch panel. The normalization considers inter-relationships between a plurality of variables that affect the raw capacitance value such as a set of device specific parameters associated with the capacitive touch panel of the device, a set of ethnographic parameters, and metadata associated with the subject. Thus, method provides higher accuracy in biosignal measurement using capacitive touch panel based devices by personalizing the biosignal measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.