US 11,818,537 B2
Acoustic reproduction device
Nobukazu Suzuki, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/309,665
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Nov. 6, 2019, PCT No. PCT/JP2019/043492
§ 371(c)(1), (2) Date Jun. 14, 2021,
PCT Pub. No. WO2020/129443, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 2018-239108 (JP), filed on Dec. 21, 2018.
Prior Publication US 2022/0014844 A1, Jan. 13, 2022
Int. Cl. H04R 1/34 (2006.01); H04R 1/02 (2006.01); H04R 1/24 (2006.01); H04R 1/28 (2006.01); H04R 3/00 (2006.01); H04R 7/12 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01); H04R 9/06 (2006.01)
CPC H04R 1/345 (2013.01) [H04R 1/025 (2013.01); H04R 1/24 (2013.01); H04R 1/2834 (2013.01); H04R 3/00 (2013.01); H04R 7/12 (2013.01); H04R 9/025 (2013.01); H04R 9/04 (2013.01); H04R 9/06 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An acoustic reproduction device, comprising:
a first acoustic reproduction unit; and
a second acoustic reproduction unit, wherein
the first acoustic reproduction unit includes:
a housing having a cylindrical shape; and
a vibration exciter configured to vibrate an end surface of one end of the housing,
the first acoustic reproduction unit is configured to output a first sound based on the vibration of the vibration exciter,
the second acoustic reproduction unit includes:
a speaker unit configured to output a second sound toward the first acoustic reproduction unit;
a diffuser configured to:
change a radiation direction of the second sound; and
control, based on the change in the radiation direction of the second sound, the radiation direction of the second sound to be substantially same as a radiation direction of the first sound; and
a cabinet that includes:
a tip cabinet that includes the vibration exciter and the one end of the housing; and
a main cabinet continuous with the tip cabinet,
the main cabinet is below the tip cabinet,
the main cabinet includes the diffuser and the speaker unit, and
the housing, the speaker unit, and the diffuser are substantially coaxial with a determined axis.