Waking degree maintaining apparatus

Details Waking degree maintaining apparatus Waking degree maintaining apparatus

1992-09-30

1994-05-17

Cohen, Lee S.

Surgery

Truss

Pad

128782, 340575, 340576, A61B 504, A61B 5103, G08B 2300

Patent

active

053118774

ABSTRACT:
A waking degree maintaining apparatus of this invention estimates a waking degree of a person on the basis of a correlation between brain waves and the reaction time or between the blinking frequency and the reaction time, and discriminates a drop in waking degree on the basis of the obtained waking degree. A stimulus according to the waking degree is presented to maintain the person in a waking state of a predetermined level. The waking degree of a person is recovered to a normal state, not only in a low waking degree state, but also in an over-stained state.

REFERENCES:
patent: 3877466 (1975-04-01), Montor
patent: 3924606 (1975-12-01), Silva et al.
patent: 4220142 (1980-09-01), Rosen et al.
patent: 4725824 (1988-02-01), Yoshioka
patent: 4883067 (1989-11-01), Knispel et al.
patent: 4928090 (1990-05-01), Yoshimi et al.
patent: 4953111 (1990-08-01), Yamamoto et al.

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