The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 04, 2004

Filed:

Dec. 04, 2002
Applicant:
Inventors:

Masayuki Kishida, Kobe, JP;

Yasuhiro Sekiguchi, Kobe, JP;

Assignee:

Fujitsu Ten Limited, Hyogo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 1/3536 ; G01S 1/356 ; G01S 1/393 ;
U.S. Cl.
CPC ...
G01S 1/3536 ; G01S 1/356 ; G01S 1/393 ;
Abstract

When a new target is detected, if it is determined that the distance difference between the newly detected target and the previously detected target is within a predetermined range, the difference between the relative velocity of the newly detected target and the relative velocity of the previously detected target is obtained to determine whether the difference is greater than a predetermined value &Dgr;V , and when the difference is greater than the predetermined value, it is determined that the new target is a target obtained as a result of mispairing. Further, when the difference between the relative velocity of the newly detected target and the relative velocity of the previously detected target is greater than the predetermined value &Dgr;V , then the difference between a distance derivative of the newly detected target over a prescribe time and the relative velocity of the previously detected target is obtained, and when the difference is greater than a predetermined value &Dgr;V which is smaller than the predetermined value &Dgr;V , it is determined that the new target is a target obtained as a result of mispairing.


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