Systems and methods for calibrating wearables based on impedance levels of users' skin surfaces
US11488361B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2019 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Jul 30, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0223
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosed wearable may include (1) a plurality of electrodes dimensioned to interface with a skin surface of a user of an artificial reality system, wherein the electrodes are spaced a known distance from one another, (2) a signal generator communicatively coupled to one of the electrodes, wherein the signal generator injects a test signal into the skin surface of the user via the one of the electrodes, (3) at least one sensor communicatively coupled to another one of the electrodes, wherein the sensor measures the test signal as received by the another one of the electrodes, and (4) at least one processing device communicatively coupled to the sensor, wherein the processing device determines a current impedance of the skin surface based at least in part on the known distance and the measurement of the test signal. Various other systems and methods are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.