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. 14, 2023
Filed:
Jun. 29, 2018
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Qiongqiong Wang, Tokyo, JP;
Koji Okabe, Tokyo, JP;
Kong Aik Lee, Tokyo, JP;
Takafumi Koshinaka, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 15/20 (2006.01); G10L 15/02 (2006.01); G10L 25/30 (2013.01); G10L 25/84 (2013.01);
U.S. Cl.
CPC ...
G10L 15/20 (2013.01); G10L 15/02 (2013.01); G10L 25/30 (2013.01); G10L 25/84 (2013.01);
Abstract
A speech feature extraction apparatusincludes a voice activity detection unitthat drops non-voice frames from frames corresponding to an input speech utterance, and calculates a posterior of being voiced for each frame, a voice activity detection process unitcalculates a function value as weights in pooling frames to produce an utterance-level feature, from a given a voice activity detection posterior, and an utterance-level feature extraction unitthat extracts an utterance-level feature, from the frame on a basis of multiple frame-level features, using the function values.