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SamsungGranted patentPhones & computersInterest 3/10

Samsung patents phone tech to fix compass errors from magnetic cases

This patent describes a method for phones to detect when a magnetic case is attached by measuring the strength of the magnetic signal. Once the phone identifies the signal as coming from the case, it uses specific correction data to adjust its internal magnetic sensor readings.

Why it mattersIt improves the accuracy of navigation and orientation features by automatically compensating for interference caused by common accessories.

In the filing’s own words

An electronic device includes: a magnetic sensor; a communication module; at least one processor operatively connected with the magnetic sensor and the communication module. The at least one processor is configured to: identify that a magnetic signal is detected through the magnetic sensor; identify, based on a magnitude of the detected magnetic signal, whether the magnetic signal is generated by coupling the electronic device with a cover device; and based on identifying that the magnetic signal is generated by coupling the electronic device with the cover device, correct sensor data of the magnetic sensor.

What exactly they claim (claim 1)

1. An electronic device comprising: a magnetic sensor; communication circuitry; at least one processor operatively connected with the magnetic sensor and the communication circuitry; and memory storing instructions that, when executed by the at least one processor individually or collectively, cause the electronic device to: identify that a magnetic signal is detected through the magnetic sensor; identify, based on a magnitude of the detected magnetic signal, whether the magnetic signal is generated by coupling the electronic device with a cover device; and in response to the magnitude of the detected magnetic signal being indicated as the magnetic signal generated by coupling the electronic device with the cover device, correct sensor data of the magnetic sensor using correction data corresponding to the magnitude of the detected magnetic signal, wherein the memory further stores correction data for each of a plurality of magnetic signal ranges, and wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to correct the sensor data of the magnetic sensor by: identifying a magnetic signal range corresponding to the magnitude of the detected magnetic signal among the plurality of magnetic signal ranges, and correcting the sensor data of the magnetic sensor based on correction data corresponding to the identified magnetic signal range.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
Electronic device for recognizing cover device and operation method thereof
Patent number
US12732576B2
Application number
18210465
Filed
Jun 15, 2023
Granted
Sep 8, 2026
Inventors
3
Claims
13

Classified under

H04M 1/72454 Electricity & electronicsG01R 33/0029 Physics & computingH04M 1/026 Electricity & electronicsH04M 1/7246 Electricity & electronicsH04M 2201/34 Electricity & electronicsH04M 2201/36 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.