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:
Oct. 21, 2025
Filed:
Jun. 29, 2022
Amazon Technologies, Inc., Seattle, WA (US);
Gurhan Saplakoglu, Acton, MA (US);
Berkant Tacer, Bellevue, WA (US);
Alexander Kanaris, San Jose, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A system configured to perform source classification using a continuously active beamformer and a classifier to improve beamforming. A device processes audio data representing sounds from multiple sound sources to determine a source direction corresponding to each detected sound source. For each audio frame, the classifier receives a source direction for each unknown sound source and uses the source direction to determine first spectral characteristics that are unique to the individual sound source. By comparing the first spectral characteristics to spectral characteristics associated with labeled sound sources, the device identifies a match and associates the source directions with a corresponding labeled sound source. For each labeled sound source, the classifier determines attributes of a corresponding signal, and the device uses these attributes to select a single sound source. Using a desired look direction associated with the selected sound source, the beamformer generates audio data representing desired speech.