PatentsDB

System and method for adapting automatic speech recognition pronunciation by acoustic model restructuring

US9305547B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9305547-B2
Application numberUS-201514698183-A
CountryUS
Kind codeB2
Filing dateApr 28, 2015
Priority dateJun 9, 2009
Publication dateApr 5, 2016
Grant dateApr 5, 2016

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

Disclosed herein are systems, computer-implemented methods, and computer-readable storage media for recognizing speech by adapting automatic speech recognition pronunciation by acoustic model restructuring. The method identifies an acoustic model and a matching pronouncing dictionary trained on typical native speech in a target dialect. The method collects speech from a new speaker resulting in collected speech and transcribes the collected speech to generate a lattice of plausible phonemes. Then the method creates a custom speech model for representing each phoneme used in the pronouncing dictionary by a weighted sum of acoustic models for all the plausible phonemes, wherein the pronouncing dictionary does not change, but the model of the acoustic space for each phoneme in the dictionary becomes a weighted sum of the acoustic models of phonemes of the typical native speech. Finally the method includes recognizing via a processor additional speech from the target speaker using the custom speech model.

First claim

Opening claim text (preview).

We claim: 1. A method comprising: identifying an acoustic model, wherein the acoustic model is trained on native speech in a target dialect; and replacing, via a processor, a phoneme in the acoustic model with a modified phoneme, wherein the modified phoneme is a weighted sum of plausible phonemes in a lattice of plausible phonemes associated with a class of a speaker. 2. The method of claim 1 , wherein upon replacing the phoneme in the acoustic model, the…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

View patent family 43301374

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Get alerts for this patentView on Google Patents

Request deeper analysis

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9305547B2 cover?
Disclosed herein are systems, computer-implemented methods, and computer-readable storage media for recognizing speech by adapting automatic speech recognition pronunciation by acoustic model restructuring. The method identifies an acoustic model and a matching pronouncing dictionary trained on typical native speech in a target dialect. The method collects speech from a new speaker resulting in…
Who is the assignee on this patent?
At & T Ip I Lp
What technology area does this patent fall under?
Primary CPC classification G10L15/07. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Apr 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).