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SamsungGranted patentAudio & voiceInterest 6/10

Samsung patents method to fix audio distortion for better echo cancellation

Samsung has been granted a patent for an electronic device that improves how it handles audio during calls. The system compares the digital audio data it receives with the actual sound coming out of the speaker to detect any distortion. If a mismatch is found, the device adjusts the internal data to ensure the microphone can accurately cancel out the echo.

Why it mattersThis improves the clarity of voice calls by helping the device more accurately distinguish between your voice and the sound of the other person, reducing the chance of the other party hearing an echo.

In the filing’s own words

An electronic device is provided. The electronic device includes a microphone. The electronic device includes a speaker. The electronic device includes a communication circuit. The electronic device includes at least one processor. The at least one processor is configured to obtain a second signal based on decoding a first signal received through the communication circuit from an external electronic device. The at least one processor is configured to output a third signal through the speaker obtained based on executing decompression the second signal. The at least one processor is configured to compensate the second signal based on a difference between the second signal and the third signal representing a distortion of the third signal, in response to obtaining an input signal including the output third signal through the microphone. The at least one processor is configured to execute cancellation of an echo of the input signal based on the compensated second signal.

What exactly they claim (claim 1)

1. An electronic device, comprising: a microphone; a speaker; a communication circuit; memory storing instructions; and at least one processor comprising processing circuitry, wherein the instructions, when executed by the at least one processor individually or collectively, cause the at least one processor to: based on decoding a first signal received through the communication circuit from an external electronic device, obtain a second signal, obtain a third signal to be output through the speaker based on executing decompression for the second signal, obtain a fourth signal to be used for echo cancellation, based on processing the second signal, compare the second signal with the fourth signal, based on the fourth signal being identified via the comparison as including a distortion, compensate the second signal to provide a compensated second signal, output, through the speaker, the third signal, while the third signal is output, obtain an input signal through the microphone, and execute echo cancellation with respect to the input signal based on the compensated second signal.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
Electronic device and method for detecting error of a signal
Patent number
US12725601B2
Application number
18483146
Filed
Oct 9, 2023
Granted
Sep 1, 2026
Inventors
4
Claims
19

Classified under

G10K 11/17825 Physics & computingG10K 11/17823 Physics & computingG10K 11/17881 Physics & computingG10K 2210/108 Physics & computingG10K 2210/3026 Physics & computingG10K 2210/3027 Physics & computing
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.