公开(公告)号：US20250048021A1

公开(公告)日：2025-02-06

申请号：US18717388

申请日：2021-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Dongchul JIN ,  Sangwon LEE ,  Daesung KIM

IPC: H04R1/10

Abstract: The present invention relates to a wireless sound device and a control method thereof, in which at least one of sound volume adjustment and noise cancelling operation is appropriately selected according to a user's preference and/or situation so that noise according to an external ambient sound is reduced and a sound can be thus provided to the user. The present invention may provide a wireless sound device comprising: a wireless communication unit for performing wireless communication with a sound source device; a speaker for outputting a sound source signal received from the sound source device; an external microphone for picking up an ambient sound; an internal microphone for picking up an in-ear sound and internal noise; and a control unit for performing sound volume control and ANC control to reduce an influence of the internal noise, wherein the control unit performs control so that, when reduction in the internal noise is insufficient after one of the sound volume control and the ANC control is performed preferentially, the other of the sound volume control and the ANC control is further performed.

公开(公告)号：US20190136431A1

公开(公告)日：2019-05-09

申请号：US16091349

申请日：2017-04-06

Applicant: LG Electronics Inc. ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Chunbae LEE ,  Younah KANG ,  Soojin JUN ,  Sangwon LEE

IPC: D06F19/00 ,  D06F39/00 ,  D06F33/02

Abstract: The present invention relates to an accessory used for a top-loading washing machine having: a cabinet for forming the outer appearance thereof; a drum rotatably provided in the cabinet, and of which the upper surface is opened so as to accommodate objects to be treated; and a laundry inlet provided at the upper surface of the cabinet, and washing machine accessory comprises: a body forming the exterior thereof and having a closed inner space; one or more ultrasonic wave generators provided inside the body; and a control unit formed so as to control the ultrasonic wave generator, wherein the body is formed in a shape in which a cross sectional area thereof is gradually reduced from the bottom toward the top thereof, such that the center of gravity of the body is located at the lower side thereof.