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:
May. 10, 2011
Filed:
Apr. 20, 2000
Eric Lechevin, Leuze-En-Hainaut, BE;
Jean-pierre Franckart, Montignies-Sur-Sambre, BE;
Danièle Galardini, Monceau-Sur-Sambre, BE;
Eric Lechevin, Leuze-En-Hainaut, BE;
Jean-Pierre Franckart, Montignies-Sur-Sambre, BE;
Danièle Galardini, Monceau-Sur-Sambre, BE;
Alstom Belgium S.A., Charleroi, BG;
Abstract
In order to measure a speed of a vehicle having an antenna and travelling on a track formed by two rails, first and second discontinuities are detected. The first discontinuity is detected in a current or voltage of a signal generated by an antenna when the vehicle passes a first tuning block of an electric joint. The second discontinuity is detected in a current or voltage of a signal generated by the antenna when the vehicle passes a second tuning block of the electric joint. The detected discontinuities are used to measure the speed of the vehicle travelling on a track divided in track sections separated by electric joints. Each electric joint includes two tuning blocks and a predetermined length of a track section, wherein each of the tuning blocks allows power coupling between adjacent track sections.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile