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.
Patent No.:
Date of Patent:
Nov. 08, 2011
Filed:
Jan. 26, 2009
Motohide Kinoshita, Kobe, JP;
Hisateru Asanuma, Kobe, JP;
Jun Tsunekawa, Nagoya, JP;
Motomi Iyoda, Seto, JP;
Tomoya Kawasaki, Toyota, JP;
Motohide Kinoshita, Kobe, JP;
Hisateru Asanuma, Kobe, JP;
Jun Tsunekawa, Nagoya, JP;
Motomi Iyoda, Seto, JP;
Tomoya Kawasaki, Toyota, JP;
Fujitsu Ten Limited, Kobe-shi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A radar device has a plurality of receiving antennas which receive, as a reception wave, a radar wave sent in a predetermined reference direction and reflected by a target; a phase difference detection unit which detects a first phase difference of the reception wave received by a first receiving antenna pair that is spaced by a first gap, and a second phase difference of the reception wave received by a second receiving antenna pair that is spaced by a second gap smaller than the first gap; and an angle detection unit which performs a first process of determining, as a detection angle, an angle of the target relative to the reference direction being a mutually coincident angle from among a plurality of first angles corresponding to the first phase difference and a plurality of second angles corresponding to the second phase difference. The radar device allows expanding an angle detection range without reducing the resolution of the angle corresponding to the second phase difference.