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:
Dec. 13, 2005
Filed:
May. 31, 1999
Håkan Lövsén, Linköping, SE;
Håkan Lövsén, Linköping, SE;
Combitech Traffic Systems AB, Jönköping, SE;
Abstract
A device for determining the position of a vehicle on a roadway by using radio waves which are emitted from the device and reflected by the vehicle and received by at least two array antennas () arranged across the roadway, wherein the array antennas () comprise a number of antenna elements (), one of the antenna elements in the respective array antenna constituting the phase center () of the array antennas, and wherein the antenna elements () of the array antennas are connected to one another such that the distance (d) between the phase centers () of the array antennas () included is smaller than half the width of an individual array antenna ().