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. 25, 2019
Filed:
Mar. 31, 2016
Applicant:
Amazon Technologies, Inc., Seattle, WA (US);
Inventor:
Björn Hoffmeister, Seattle, WA (US);
Assignee:
Amazon Technologies, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 15/16 (2006.01); G06N 3/04 (2006.01); G06N 3/08 (2006.01);
U.S. Cl.
CPC ...
G10L 15/16 (2013.01); G06N 3/0445 (2013.01); G06N 3/08 (2013.01);
Abstract
An automatic speech recognition (ASR) system uses recurrent neural network (RNN) encoding to create a feature vector corresponding to a word sequence ASR result where the feature vector incorporates data from different hierarchies (i.e., frame level, phone level, etc.) of the ASR processing. The feature vector may be used with a trained classifier to confirm that the ASR result was correct, or to otherwise assign a confidence score to the ASR results.