Vehicular rear and side warning device

Details Vehicular rear and side warning device Vehicular rear and side warning device

2007-02-06

2007-02-06

Tweel, Jr., John (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

External signal light system

C340S468000

Reexamination Certificate

active

11077013

ABSTRACT:
There is provided a vehicular rear and side warning device which does not issue a warning against a roadside stationary body such as a guard rail or a wall, and certainly issues a warning against a vehicle approaching from behind or a vehicle existing in a blind spot region of an own vehicle. A warning object judgment unit includes a noted sampling timing setting unit for setting a noted sampling timing on the basis of a peak timing obtained by a peak detection unit, and a frequency judgment unit for judging whether a frequency component not lower than a frequency threshold set by a frequency threshold setting unit exists with respect to an FFT operation result at the noted sampling timing. In a case where a front approaching body recognition unit judges that a material body approaches from in front of the own vehicle, and when the frequency judgment unit judges that a frequency component not lower than the frequency threshold exists, it is judged that the material body is a stationary body and is not a warning object.

REFERENCES:
patent: 4682146 (1987-07-01), Friedman, III
patent: 5434554 (1995-07-01), Caesar
patent: 6744359 (2004-06-01), Wasilewski et al.
patent: 6850156 (2005-02-01), Bloomfield et al.
patent: 6947576 (2005-09-01), Stam et al.
patent: 54118036 (1979-09-01), None
patent: 8293099 (1996-11-01), None
patent: 2002-233699 (2000-08-01), None
patent: 2002-274303 (2002-09-01), None

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