Object-detecting system for vehicle

Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle

Reexamination Certificate

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Details

C342S109000, C342S111000, C342S115000, C342S192000, C342S196000

Reexamination Certificate

active

06906661

ABSTRACT:
In an object-detecting system using an FM-CW wave, points f1to f4corresponding to detection peaks of a reflected wave from a road-side object such as guardrail and points m1and m2corresponding to detection peaks of a reflected wave from a moving object such as a reflector of a preceding vehicle are indicated on two-dimensional coordinates along with the shape of a road ahead of a subject vehicle. Among the points f1to f4, m1and m2, the points f1to f4are determined as being provided by the reflected wave from the road-side object, and a distance from the subject vehicle to the object and a speed of the subject vehicle relative the object are calculated using the remaining points m1and m2excluding the points f1to f4. Thus, only the moving object except the road-side object can be detected.

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patent: 2004/0227662 (2004-11-01), Sawamoto et al.
patent: 3305624 (1997-07-01), None

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