Boots – shoes – and leggings
Patent
1993-04-07
1996-02-27
Chin, Gary
Boots, shoes, and leggings
340436, 307 101, 280735, 180282, B60R 2132
Patent
active
054954142
ABSTRACT:
A single-point impact sensor has a fully differential capacitive sense element for providing a capacitive difference which is proportional to the acceleration of the vehicle. The capacitive difference is converted into a digital pulse train signal which is pulse density modulated with variations in the capacitance. The pulse density of the pulse train is evaluated according to a hierarchy of counters and timers to determine if it is indicative of an activation worthy event. In one embodiment, a non-volatile programmable memory is provided to control the operation of the impact sensor.
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Graf Michael C.
Kemp Christopher J.
Spangler Leland J.
Chin Gary
Dixon Richard D.
Ford Motor Company
May Roger L.
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