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. 05, 2024
Filed:
Feb. 04, 2020
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Masahiro Yasuda, Tokyo, JP;
Yuma Koizumi, Tokyo, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
A direction-of-arrival estimation device for achieving direction-of-arrival estimation which is robust against an SNR and in which an application range of a learning model is specific is provided. The device includes: a reverberation output unit configured to receive input of a real spectrogram extracted from a complex spectrogram of acoustic data and an acoustic intensity vector extracted from the complex spectrogram, and output an estimated reverberation component of the acoustic intensity vector; a noise suppression mask output unit configured to receive input of the real spectrogram and the acoustic intensity vector from which the reverberation component has been subtracted, and output a time frequency mask for noise suppression; and a sound source direction-of-arrival derivation unit configured to derive a sound source direction-of-arrival based on an acoustic intensity vector formed by applying the time frequency mask to the acoustic intensity vector from which the reverberation component has been subtracted.