Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Reexamination Certificate
2007-01-16
2007-01-16
Nguyen, Tan (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
C701S046000, C701S047000, C701S213000, C341S118000, C341S131000
Reexamination Certificate
active
10779627
ABSTRACT:
A G sensor31generates a measuring value by measuring an impact acceleration applied to a vehicle. An A/D converter32converts the measuring value into a digital value with a resolution of K bits. A transmission interface33compresses the digital value into a compression digital signal of L bits being smaller than K bits. When the digital value is outside a given range from (2K−2L)/2 to (2K+2L)/2, the compression digital signal is generated by dividing the digital value by 2(K-L). When within the given range, the compression digital signal is generated without dividing the digital value. The compression digital signal corresponding to the digital value within the given range thereby maintains the resolution of K bits. Thus, even using the single G sensor, a resolution of a compression digital signal can be varied based on a low or high intensity level of G.
REFERENCES:
patent: 5493297 (1996-02-01), Nguyen et al.
patent: 5621404 (1997-04-01), Heiss et al.
patent: 5668552 (1997-09-01), Thurston
patent: A-H10-166993 (1998-06-01), None
Denso Corporation
Nguyen Tan
Posz Law Group , PLC
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