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:
Jun. 14, 1994

Filed:

Dec. 28, 1992
Applicant:
Inventors:

Hayato Kikuchi, Wako, JP;

Yasuhiko Fujita, Wako, JP;

Toshiaki Arai, Wako, JP;

Yoshikazu Tsuchiya, Wako, JP;

Makoto Sato, Wako, JP;

Kunio Nanno, Wako, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
342 70 ; 342 71 ;
Abstract

In estimating the relative speed between a vehicle and an objective obstacle, a plurality of objective obstacle data are labeled, and an objective obstacle data preestimated on the basis of the past objective data is compared with an objective obstacle newly provided, thereby judging whether or not there is the same obstacle for every label. With regard to the objective obstacle data decided as being the same, the amount of variation in distance is determined for every label by comparison of the last data and the now data and divided by a sampling time to provide a relative speed. Thus, noise data can be eliminated to reliably provide a relative speed between a subject vehicle and an existent objective obstacle.


Find Patent Forward Citations

Loading…