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. 19, 2022
Filed:
Sep. 25, 2018
Amazon Technologies, Inc., Seattle, WA (US);
Yixin Gao, Cambridge, MA (US);
Ming Sun, Winchester, MA (US);
Varun Nagaraja, Cambridge, MA (US);
Gengshen Fu, Sharon, MA (US);
Chao Wang, Newton, MA (US);
Shiv Naga Prasad Vitaladevuni, Cambridge, MA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A system and method performs wakeword detection and automatic speech recognition using the same acoustic model. A mapping engine maps phones/senones output by the acoustic model to phones/senones corresponding to the wakeword. A hidden Markov model (HMM) may determine that the wakeword is present in audio data; the HMM may have multiple paths for multiple wakewords or may have multiple models. Once the wakeword is detected, ASR is performed using the acoustic model.