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:
Mar. 31, 2020
Filed:
May. 10, 2016
National Institute of Information and Communications Technology, Tokyo, JP;
Naoyuki Kanda, Tokyo, JP;
Abstract
An object is to provide a speech recognition device with improved recognition accuracy using characteristics of a neural network. A speech recognition device includes: an acoustic modelimplemented by a RNN (recurrent neural network) for calculating, for each state sequence, the 45 posterior probability of a state sequence in response to an observed sequence consisting of prescribed speech features obtained from a speech; a WFSTbased on S-1HCLG calculating, for each word sequence, posterior probability of a word sequence in response to a state sequence; and a hypothesis selecting unit, performing speech recognition of the speech signal based on a score calculated for each hypothesis of aword sequence corresponding to the speech signal, using the posterior probabilities calculated by the acoustic modeland the WFSTfor the input observed sequence.