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:
Oct. 01, 2024
Filed:
May. 07, 2019
Applicant:
Transtron Inc., Kanagawa, JP;
Inventor:
Yuki Satomi, Kanagawa, JP;
Assignee:
TRANSTRON INC., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/02 (2006.01); G10L 21/0208 (2013.01);
U.S. Cl.
CPC ...
H04R 3/02 (2013.01); G10L 21/0208 (2013.01); G10L 2021/02082 (2013.01);
Abstract
There is provided an echo suppression device that allows adding a natural comfort noise even in an environment in which a change in ambient noise is large. An echo is removed from an input signal to generate an echo-removed signal, a noise signal included in the echo-removed signal is estimated to generate an estimated noise signal, and a noise signal included in the echo-removed signal is suppressed based on the estimated noise signal to generate a suppressed signal. A comfort noise is generated based on the estimated noise signal, and the comfort noise is superimposed on the suppressed signal.