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:
Jun. 20, 2023
Filed:
Dec. 21, 2021
Thales, Courbevoie, FR;
THALES, Courbevoie, FR;
Abstract
This method, implemented in a mounted information display device, which incorporates a main sensor and an inertial sensor, and which determines the positioning by a hybrid inertial method including determining a calculated position by a main method using data acquired by the main sensor and determining a succession of estimated positions using the calculated position and data acquired by the inertial sensor, includes: obtaining at a first calculation time instant T1 a first estimated position of the device at a reference time instant, calculated by the hybrid inertia method; obtaining at a second time instant T2 a second estimated position of the device at the same reference time instant, calculated by the main method; comparing a difference between the first and second positions and a tolerance threshold; and, if the difference is less than the threshold, validating the positioning calculation by the hybrid inertial method, otherwise raising an alert.