Patent · US Active

Utilization of luminance changes to determine user characteristics

US11354805B2 · kind B2 · utility

2Cited by
3References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 21, 2020
Grant dateJun 7, 2022
Priority date
Expiry dateJul 21, 2040

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06T2207/30041
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

Identifying a state of a user (e.g., attentive, distracted, mind wandering, etc.) based on the user's physiological (e.g., pupillary) response to luminance change events in which a portion or all of the content quickly becomes brighter or dimmer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.