Pupil dynamics, physiology, and context for estimating vigilance
US12124625B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2023 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Jun 30, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2505/09
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A computer system records eye tracking data and identifies movements in the eye tracking data to determine gaze and pupil dynamics. Eye tracking data is correlated with a current task and predetermined vigilance requirements. The system determines if the user is exhibiting an appropriate level of vigilance based on the task or is becoming fixated. When fixation is detected, the system may engage in remedial action. A task flow diagram represents the operator tasks. Interactions between the user and the instrumentation are used to estimate the probability distribution of the task the user is currently conducting. The system correlates eye tracking data and physiological data such as electroencephalogram (EEG) and functional near-infrared spectroscopy (fNIRs) to determine neuroactivity. Monitoring neuroactivity reduces the probability of a false positive for fixation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.