Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Reexamination Certificate
2005-11-10
2010-11-23
Camby, Richard M. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
C701S031000, C701S045000, C180S274000, C280S735000
Reexamination Certificate
active
07840323
ABSTRACT:
A collision recognition device for a vehicle is proposed, comprising a pressure sensor with a first electrode and a second electrode, both having first and second ends, the second end of the first electrode being connected to a first terminal of a first resistor, the second end of the second electrode being connected to a first terminal of a second resistor During use, a first voltage V1is applied to the first end of the first electrode, a second voltage V2is applied to a second terminal of the first resistor so that a voltage difference between said first terminal of the first resistor and said second terminal of said first resistor forms a first status voltage indicative of circuit integrity. A first signal voltage V3at the second end of the second electrode is indicative of whether said first and second electrodes are in contact. During a collision, the two electrodes are pressed together in the collision zone, which creates an electrical contact in this region. The signal voltage V3thus changes, and a collision can be detected. A fourth voltage V4is applied to the first end of the second electrode and a fifth voltage V5is applied to a second terminal of the second resistor so that a voltage difference between the first terminal of the second resistor and said second terminal of the second resistor forms a second status voltage indicative of circuit integrity.
REFERENCES:
patent: 6561301 (2003-05-01), Hattori et al.
patent: 7036621 (2006-05-01), Takafuji et al.
patent: 2004/0064230 (2004-04-01), Takafuji et al.
patent: 103 09 715 (2004-04-01), None
International Search Report; PCT/EP2005/055872; Feb. 14, 2006.
Bour Christian
Petereit Andreas
Camby Richard M.
Cantor & Colburn LLP
IEE International Electronics & Engineering S.A.
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