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.
Patent No.:
Date of Patent:
Apr. 14, 2026
Filed:
Jul. 29, 2022
Espressif Systems (Shanghai) Co., Ltd., Shanghai, CN;
Xiangyu Sun, Shanghai, CN;
ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD., Shanghai, CN;
Abstract
The present application discloses an automatic gain control method and apparatus for a voice interaction system, a system, and a computer-readable storage medium. The method comprises: receiving a voice signal; dividing the received voice signal into a plurality of sound signals of different sound sources by blind source separation; invoking a pre-trained wake-up word detection model to perform wake-up word detection on the sound signals of different sound sources respectively, to determine a sound signal in which a wake-up word is detected; calculating, based on the sound signal in which the wake-up word is detected, a gain required for automatic gain control of the voice interaction system, to adjust a volume of picked-up audio data within a preset range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile