公开(公告)号：US20240348855A1

公开(公告)日：2024-10-17

申请号：US18293545

申请日：2021-07-30

Applicant: LG ELECTRONICS INC.

Inventor： Dongsung KIM ,  Gipum CHOI

IPC: H04N21/422 ,  G06F3/16 ,  H04R3/02

CPC classification number: H04N21/42203 ,  G06F3/167 ,  H04R3/02

Abstract: Disclosed is a wireless display system comprising a wireless set-top box for communicating with a wireless display device and performing voice recognition, the wireless set-top box comprising: a communication unit that transmits image data and sound data to the wireless display device; a microphone that receives a voice command of a user; and a control unit that, when the voice command of the user is received, obtains an echo removal parameter on the basis of location information of the wireless set-top box and performs echo removal by using the echo removal parameter.