US 12,081,959 B2
Display device and surround sound system
Eunjung Lee, Seoul (KR); Sijin Kim, Seoul (KR); and Hyorim Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/440,141
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Aug. 27, 2019, PCT No. PCT/KR2019/010930
§ 371(c)(1), (2) Date Sep. 16, 2021,
PCT Pub. No. WO2021/040074, PCT Pub. Date Mar. 4, 2021.
Prior Publication US 2022/0150654 A1, May 12, 2022
Int. Cl. H04S 7/00 (2006.01); H04R 5/02 (2006.01); H04R 29/00 (2006.01)
CPC H04S 7/30 (2013.01) [H04R 5/02 (2013.01); H04R 29/001 (2013.01); H04R 2420/07 (2013.01); H04R 2499/15 (2013.01); H04S 2400/13 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A display device comprising:
an audio output interface;
a wireless communication interface configured to connect to at least one external speaker;
a user input interface; and
a controller configured to:
cause the audio output interface to output a first sound and the at least one external speaker to output a second sound;
receive a first audio signal corresponding to the first sound or a second audio signal corresponding to the second sound from a remote control device through the user input interface,
acquire at least one of information on a level of the first sound output from the audio output interface based on the received first audio signal or information on a level of the second sound output from the at least one external speaker based on the received second audio signal, and
control a volume of the at least one external speaker according to the level of the first sound output from the audio output interface,
wherein the display device further comprises a storage configured to store sound pressure balancing data for mapping the level of the second sound to each sound level of the first sound.