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:
Jan. 18, 2005

Filed:

Nov. 20, 2003
Applicants:

Satoshi Ishii, Kawasaki, JP;

Yoshikazu Dooi, Kawasaki, JP;

Sadanori Matsui, Kobe, JP;

Inventors:

Satoshi Ishii, Kawasaki, JP;

Yoshikazu Dooi, Kawasaki, JP;

Sadanori Matsui, Kobe, JP;

Assignees:

Fujitsu Limited, Kawasaki, JP;

Fujitsu Ten Limited, Kobe, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 1334 ; G01S 740 ;
U.S. Cl.
CPC ...
Abstract

A signal from CW radar is received, and the received power detected by the CW radar's swinging in all directions is averaged in each direction. Then, the maximum value and the minimum value of the received power are detected for each direction, and the difference between the maximum value and the minimum value is computed. An average power value of obtained power is also computed. On a 2-dimensional plane on which the difference between the maximum value and the minimum value and the average power value are used for coordinate axes, slice processing is performed using a threshold indicated by a line graph or a curve.


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