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.

Date of Patent:
Feb. 24, 2026

Filed:

Mar. 24, 2021
Applicant:

Assa Abloy Ab, Stockholm, SE;

Inventors:

Magnus Hansson, Malmö, SE;

Jan Elfström, Landskrona, SE;

Mikael Johansson, Lund, SE;

Assignee:

ASSA ABLOY AB, Stockholm, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 5/02 (2010.01); G01S 5/14 (2006.01); H04W 40/24 (2009.01); H04W 64/00 (2009.01);
U.S. Cl.
CPC ...
G01S 5/0278 (2013.01); G01S 5/14 (2013.01); H04W 40/244 (2013.01); H04W 64/00 (2013.01); H04W 64/003 (2013.01);
Abstract

It is provided a method for enabling determination of proximity of a mobile device () to a beacon device (). The method is performed by a proximity determiner () and comprises the steps of: determining a set of beacon devices (-) being detectable from the mobile device: obtaining beacon measurements of one or two beacon devices in each pair: generating a two-dimensional graph based on the beacon measurements: obtaining device measurements of signal strength of beacons from the beacon devices in the set of beacon devices: finding an optimum in a space defined by the two-dimensional graph; and determining the most probable position of the mobile device in the graph based on the optimum.


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