US 11,895,459 B2
Sound output device
Masayoshi Hasegawa, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/596,540
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed May 14, 2020, PCT No. PCT/JP2020/019221
§ 371(c)(1), (2) Date Dec. 13, 2021,
PCT Pub. No. WO2020/255596, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 2019-115318 (JP), filed on Jun. 21, 2019.
Prior Publication US 2022/0248126 A1, Aug. 4, 2022
Int. Cl. H04R 1/26 (2006.01); H04R 1/10 (2006.01); G10K 11/178 (2006.01)
CPC H04R 1/26 (2013.01) [G10K 11/17881 (2018.01); H04R 1/1016 (2013.01); H04R 1/1075 (2013.01); H04R 1/1083 (2013.01); G10K 2210/1081 (2013.01); G10K 2210/3026 (2013.01); G10K 2210/3027 (2013.01); H04R 2460/01 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A sound output device, comprising:
a housing that includes an arrangement case in which an internal space is formed, and a sound guide tube in which a sound conduction space is formed;
a feedback microphone to which an external sound is input;
a first speaker unit configured to output a sound; and
a second speaker unit configured to output a sound in an output band different from an output band of the sound output from the first speaker unit,
wherein the housing has inside a first space and a second space,
the feedback microphone and the first speaker unit are arranged in the first space,
the second speaker unit is arranged in the second space, and
an equalizer that partitions the first space and the second space is disposed between the first speaker unit and the second speaker unit.