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SamsungGranted patentNetworks & wirelessInterest 6/10

Samsung patents indoor tracking that blends Wi-Fi signals with step counting

This patent describes a method for pinpointing a device's location indoors by combining wireless signal data with motion sensor readings. When the system detects a step, it calculates the distance and direction of that step to refine the location estimate beyond what the wireless signal alone can provide.

Why it mattersThis technology could improve the accuracy of indoor navigation apps, helping users find specific rooms or items in large buildings where GPS signals are weak.

In the filing’s own words

A method includes receiving at least one wireless signal measurement and motion sensor measurements. The method also includes generating a location estimate based on the at least one wireless signal measurement. The method also includes determining whether a step is present based on the motion sensor measurements. The method also includes, in response to determining that a step is present, determining a step heading offset based on the location estimate and the motion sensor measurements, and determining a step length and heading based on the motion sensor measurements and the step heading offset. The method also includes determining a location of an object based on at least one of (i) the at least one wireless signal measurement or (ii) the step length and heading.

What exactly they claim (claim 1)

1. A method comprising: receiving at least one wireless signal measurement and motion sensor measurements; generating a location estimate based on the at least one wireless signal measurement; determining whether a step is present based on the motion sensor measurements; in response to determining that a step is present: determining a step heading offset based on the location estimate and the motion sensor measurements; and determining a step length and heading based on the motion sensor measurements and the step heading offset; and determining a location of an object based on at least one of (i) the at least one wireless signal measurement or (ii) the step length and heading.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Motion sensor fusion in indoor localization
Patent number
US12739599B2
Application number
18627365
Filed
Apr 4, 2024
Granted
Sep 15, 2026
Inventors
7
Claims
20

Classified under

H04W 4/029 Electricity & electronicsG01C 21/183 Physics & computingG01C 21/206 Physics & computingH04W 64/006 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.