Drowsiness/alertness monitor

Details Drowsiness/alertness monitor Drowsiness/alertness monitor

1998-09-04

2000-07-18

Wu, Daniel J.

Communications: electrical

Condition responsive indicating system

Specific condition

340439, 3405731, 340575, 128745, 351209, G08B 2100

Patent

active

060913347

ABSTRACT:
A method and apparatus for analyzing drowsiness of a subject. The monitor measures motion of the head of the subject and of one or both eyes of the subject in at least one dimension and derives at least one physiological indication such as gaze stability, saccade speed, saccade frequency, blink duration, and instrument-world scanning performance of the subject. The physiological indicator or indicators are compared with predetermined ranges of acceptable values in such a manner as to determine an onset of drowsiness in the subject.

REFERENCES:
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patent: 5570698 (1996-11-01), Liang et al.
patent: 5573006 (1996-11-01), Shimotani et al.
patent: 5583590 (1996-12-01), Clupper
patent: 5689241 (1997-11-01), Clarke, Sr. et al.
patent: 5729619 (1998-03-01), Puma
patent: 5859686 (1999-01-01), Aboutalib et al.
Ueno et al., "Development of Drowsiness Detection System", Proceedings of the Vehicle Navigation and Information Systems Conference, Yokohama, Aug. 31-Sep. 2, 1994, pp. 15-20.

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