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:
Dec. 01, 2020
Filed:
Aug. 21, 2019
Samsung Electronics Co., Ltd., Suwon-si, KR;
Seongwoo Kim, Seongnam-si, KR;
Han Young Yim, Suwon-si, KR;
Dongil Hyun, Incheon, KR;
Jong Won Shin, Gwangju, KR;
Hyungchan Song, Daejeon, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Gwangju Institute of Science and Technology, Gwangju, KR;
Abstract
A residual echo estimator estimates a residual echo of a microphone signal input to a microphone as a reference signal is output through a speaker. The residual echo estimator estimates a magnitude of a residual echo of the reference signal at a current frame by using a magnitude of the linear echo of the reference signal at the current frame and a magnitude of the linear echo of the reference signal at a past frame, and updates weights to be applied to the magnitudes of the linear echo.