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:
Nov. 25, 2025
Filed:
Dec. 13, 2023
Amazon Technologies, Inc., Seattle, WA (US);
Wai Chung Chu, San Jose, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A system configured to improve sound source localization (SSL) processing by including distance information. By estimating a 3D location vector corresponding to a direction and a distance associated with a sound source, the system may extend SSL processing from 2D to 3D and generate a location estimate for the sound source. In addition, the system groups the 3D location vectors into 3D location cells having a regular structure (e.g., predetermined uniformity and/or symmetry), which simplifies SSL processing and results in a substantial reduction in computational cost. For example, the system may associate each 3D location cell with (i) location vectors contained within the 3D location cell, (ii) weight values indicating a relative weight of each location vector for the 3D location cell, and (iii) neighboring 3D location cells. Using these associations, the system may identify peak power value(s) corresponding to sound source(s) and generate location estimates for each sound source.