Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1999-02-05
1999-11-23
Tong, Nina
Communications: electrical
Condition responsive indicating system
Specific condition
340439, 701 70, 180272, G08B 2300
Patent
active
059907959
ABSTRACT:
This invention provides a means of awakening the sleeping or unconscious operator of the vehicle by sounding a loud alarm with a recorded message within the cabin as well as alerting nearby and opposing drivers of other vehicles in motion that the involved vehicle is out of control. The invention involves securing to a shoulder belt a capacitance element including circuits to bring about a change in capacitance in the event of nodding of the operator's head.
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patent: 4203098 (1980-05-01), Muncheryan
patent: 5508685 (1996-04-01), Monte, Jr.
patent: 5568127 (1996-10-01), Bang
patent: 5585785 (1996-12-01), Gwin et al.
patent: 5813989 (1998-09-01), Saitoh et al.
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