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:
Jan. 14, 2025
Filed:
Jan. 20, 2021
Sonitor Technologies As, Oslo, NO;
Wilfred Edwin Booij, Oslo, NO;
Cyril Antille, Oslo, NO;
Elad Shabtai, Oslo, NO;
Mattheus Franciscus Albertus Ten Veldhuis, Oslo, NO;
Sonitor Technologies AS, Oslo, NO;
Abstract
A positioning system comprising a processing system () configured to receive a first position estimate for a mobile device (), and to receive data representative of an acoustic signal received by the mobile device () from one of a plurality of acoustic transmitter units (). For each of the acoustic transmitter units (), the processing system () determines spatial likelihood data representative of a likelihood of the received acoustic signal having been transmitted by the respective acoustic transmitter unit by comparing a time-of-flight range value with a geometric distance value, representative of a distance between the acoustic transmitter unit and the first position estimate. The processing system () processes the spatial likelihood data to identify a subset of the acoustic transmitter units, and processes information relating to the positions of the acoustic transmitter units in the identified subset and/or relating to the acoustic signals transmitted by the acoustic transmitter units in the identified subset, to determine a second position estimate for the mobile device ().