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:
Jul. 16, 2019
Filed:
Oct. 03, 2018
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
Alex Pereira Da Silva, Saint Martin d'Heres, FR;
Sylvain Leirens, Pierre Chatel, FR;
Abstract
In a method for locating mobile devices, a trajectory (T, T) is reconstructed modelling a movement made by each mobile device during which the mobile device carries out measurements of an indicator linked to the distance separating it from access terminals (B-B) to a communication network. From these measurements, the locations of the terminals are calculated in a frame of reference linked to each mobile device. A procrustean analysis is then performed to determine, for each mobile device, a geometric transformation that transforms the locations of the terminals in the frame of reference linked to the mobile device into locations transformed in a common frame of reference. From this determination, the location of each terminal transformed in the common frame of reference is superimposed with a location of the terminal in the common frame of reference. Finally, the corresponding geometric transformation is applied to the trajectory of each mobile device.