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. 30, 2024
Filed:
Aug. 27, 2020
Sonitor Technologies As, Oslo, NO;
Wilfred Edwin Booij, Oslo, NO;
Vincent Martello Kwie Hoe Thio, Oslo, NO;
Sonitor Technologies AS, Oslo, NO;
Abstract
In a positioning system, a plurality of transmitter units () transmit respective transmitter-specific identification signals at intervals, which are received at a mobile receiver unit (). A processing system () identifies the transmitter unit that transmitted each received identification signal, and, for each signal, determines range data from time of arrival data and determines distance data from Doppler shift information. The range data and distance data are compared to determine range error data. A position estimate for the mobile receiver unit () is determined by solving an optimisation problem using range estimates determined for the plurality of transmitter units, weighted in dependence on the range error data.