US 11,722,814 B2
Sound output apparatus
Daegee Kang, Seoul (KR); Seunghark Paek, Seoul (KR); Minkoo Kim, Seoul (KR); and Seunghwan Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Apr. 11, 2022, as Appl. No. 17/718,042.
Claims priority of application No. 10-2021-0167414 (KR), filed on Nov. 29, 2021.
Prior Publication US 2023/0171538 A1, Jun. 1, 2023
Int. Cl. H04R 1/28 (2006.01); H04R 1/02 (2006.01); H04R 7/12 (2006.01); H04R 9/02 (2006.01); H04R 7/26 (2006.01); H04R 9/06 (2006.01); H04R 7/18 (2006.01)
CPC H04R 1/288 (2013.01) [H04R 1/025 (2013.01); H04R 7/12 (2013.01); H04R 7/18 (2013.01); H04R 7/26 (2013.01); H04R 9/025 (2013.01); H04R 9/06 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A sound output apparatus comprising:
a case including a first opening and a second opening positioned on opposite sides of the case; and
a first speaker mounted to the case at the first opening and the second speaker mounted to the case at the second opening such that the first speaker and the second speaker are symmetrically arranged and face opposite directions,
wherein the first speaker and the second speaker are spaced apart from each other by a preset distance such that respective sound vibrations generated at a rear of the first speaker and a rear of the second speaker cancel each other out.