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:
Feb. 11, 2014
Filed:
Feb. 25, 2011
Albert Joseph Kishan Thambiratnam, Beijing, CN;
Weiwu Zhu, Beijing, CN;
Frank Torsten Bernd Seide, Beijing, CN;
Albert Joseph Kishan Thambiratnam, Beijing, CN;
Weiwu Zhu, Beijing, CN;
Frank Torsten Bernd Seide, Beijing, CN;
Microsoft Corporation, Redmond, WA (US);
Abstract
A voice activity detection (VAD) module analyzes a media file, such as an audio file or a video file, to determine whether one or more frames of the media file include speech. A speech recognizer generates feedback relating to an accuracy of the VAD determination. The VAD module leverages the feedback to improve subsequent VAD determinations. The VAD module also utilizes a look-ahead window associated with the media file to adjust estimated probabilities or VAD decisions for previously processed frames.