Doze-off warning apparatus for vehicle
US7868771B2 · kind B2 · utility
12Cited by
5References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 24, 2008 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Aug 5, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/18
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention provides a doze-off warning apparatus for a vehicle, comprising: a sensor measuring a driver's eye-open time (to) and an eye-closure time (tc); a doze-off driving determination part determining degree of danger based on the measured eye-open time (to) and the eye-closure time (tc) and comparing the determined degree of danger with a predetermined threshold (Kt); and an alarm part providing a warning signal with the driver when the degree of danger exceeds the predetermined threshold (Kt).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.