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:
Jun. 09, 2026
Filed:
Sep. 19, 2023
Shenzhen Shokz Co., Ltd., Shenzhen, CN;
Le Xiao, Shenzhen, CN;
Chengqian Zhang, Shenzhen, CN;
Fengyun Liao, Shenzhen, CN;
Xin Qi, Shenzhen, CN;
Shenzhen Shokz Co., Ltd., Shenzhen, CN;
Abstract
Microphone signals output by the microphone array satisfy a first model corresponding to a noise signal or a second model corresponding to a target voice signal mixed with a noise signal. A method and system may optimize the first model and the second model respectively by using maximization of a likelihood function and rank minimization of a noise covariance matrix as joint optimization objectives, and determine a first estimate of a noise covariance matrix of the first model and a second estimate of a noise covariance matrix of the second model; and determine, by using a statistical hypothesis testing method, whether the microphone signals satisfy the first model or the second model, so as to determine whether the target voice signal is present in the microphone signals, determine a noise covariance matrix of the microphone signals, and further perform voice enhancement on the microphone signals.