Doze detector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 28, 1990
Grant Date -
N/A
app pub date -
Feb 11, 1988
filing date -
Feb 12, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A doze detector detects when the user begins to go to sleep, by detecting the blinks of the user's eye, regardless of the position of the iris, using at least two reflection type sensors. A blink is determined to have occurred only when both light detecting elements detect a blink. The number and/or duration of the blinks is then used to determine whether the user is beginning to doze. An alarm can then be produced to prevent the user from going to sleep.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully