Electronic apparatus and control method therefor
The electronic device uses multiple microphones and advanced signal processing algorithms to enhance SNR and suppress noise, accurately determining the audio signal's direction for precise control.
WO2026135052A1PCT designated stage Publication Date: 2026-06-25SAMSUNG ELECTRONICS CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SAMSUNG ELECTRONICS CO LTD
- Filing Date
- 2025-12-12
- Publication Date
- 2026-06-25
AI Technical Summary
Technical Problem
Conventional electronic devices struggle to accurately recognize the direction from which an audio signal originates due to challenges in distinguishing between voice signals and noise signals.
Method used
The electronic device employs a plurality of microphones, a communication interface, memory, and a processor to calculate Signal-to-Noise Ratio (SNR) values based on arrival time differences and noise suppression algorithms like Fast Fourier Transform (FFT) and Neural Network-based Generalized Eigenvalue (NNGEV), identifying the direction with the highest SNR using a table of index values.
Benefits of technology
Accurately determines the direction of a voice signal by enhancing SNR and suppressing noise, enabling precise control and operation in that direction.
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Smart Images
Figure KR2025021618_25062026_PF_FP_ABST
Abstract
This electronic apparatus comprises a plurality of microphones, a communication interface, a memory for storing instructions, and at least one processor, wherein, when executed collectively or individually by the at least one processor, the instructions can instruct the electronic apparatus to acquire a signal-to-noise ratio (SNR) value on the basis of a noise signal and a speech signal included in respective frames acquired from an audio signal including the speech signal, acquire, on the basis of a difference in arrival time of the audio signal received through the plurality of microphones, information corresponding to the incident direction of the speech signal included in the respective frames, and acquire, as the incident direction of the speech signal, a direction having the largest SNR value from among SNR values for respective directions acquired on the basis of the SNR value corresponding to the incident direction of the speech signal included in the respective frames.
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