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. 29, 1999

Filed:

Dec. 30, 1997
Applicant:
Inventors:

Toshiyuki Takahara, Tokyo, JP;

Masahiro Watanabe, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ; G01S / ;
U.S. Cl.
CPC ...
342 70 ; 342147 ; 342158 ;
Abstract

An arrangement is provided such that a time counter 5 starts counting an elapsed time after the lapse of a fixed time from the time the output of a beam reference-position detecting means 3 is turned on, such that an angle output value calculated by an angle-calculating means becomes 0 when the direction of a beam emitted from a radar head unit 2 has coincided with a frontal direction of the vehicle.


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