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. 21, 2026
Filed:
Sep. 28, 2022
Espressif Systems (Shanghai) Co., Ltd., Shanghai, CN;
Xiaozheng Shen, Shanghai, CN;
ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD., Shanghai, CN;
Abstract
A method for improving far-field speech interaction performance, and a far-field speech interaction system are provided. The method comprises: a smart device, during a network configuration process by soundwave signals, acquires a soundwave transmitted by a network configuration auxiliary device, and calculates a spatial acoustic parameter where the smart device is located. Furthermore, numerical values of the spatial acoustic parameter are selected within a set margin range, front-end speech processing parameter is updated according to the spatial acoustic parameter, and a soundwave signal energy value after front-end speech processing is calculated so that a spatial acoustic parameter corresponding to the minimum energy value is selected as a final spatial acoustic parameter. The final spatial acoustic parameter is transmitted to a speech recognition engine which selects an acoustic model trained by using a data set closest to the final spatial acoustic parameter as a far-field speech recognition model.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile