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. 09, 1999
Filed:
Apr. 08, 1997
Applicant:
Inventor:
Eisaku Akutsu, Susono, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455 41 ; 455523 ; 455422 ; 455 14 ;
Abstract
A radio communication system between a mobile station on a vehicle and a stationary station in which a uniform field intensity is obtained in a direction of a width of a road so that a good communication can be performed irrespective of a position of the vehicle on the road. A mobile station is provided on the vehicle. A stationary station communicating with the mobile station includes at least one pair of antennas located with the road therebetween so that the antennas generate an electric field having a substantially uniform intensity in a direction of a width of the road.