US 12,329,034 B2
Audio device and driving method thereof, and display device
Yoshio Ohashi, Kanagawa (JP); Shin Yamaguchi, Kanagawa (JP); and Manabu Hamakawa, Tokyo (JP)
Assigned to Sony Group Corporation, (JP)
Appl. No. 18/006,019
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Jul. 14, 2021, PCT No. PCT/JP2021/026478
§ 371(c)(1), (2) Date Jan. 19, 2023,
PCT Pub. No. WO2022/024763, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 2020-127050 (JP), filed on Jul. 28, 2020.
Prior Publication US 2023/0354712 A1, Nov. 2, 2023
Int. Cl. H04R 25/00 (2006.01); H04R 1/24 (2006.01); H04R 3/14 (2006.01); H04R 17/00 (2006.01); H10N 30/20 (2023.01); H10N 30/50 (2023.01)
CPC H10N 30/2047 (2023.02) [H04R 1/24 (2013.01); H04R 3/14 (2013.01); H04R 17/00 (2013.01); H10N 30/50 (2023.02); H04R 2217/01 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An audio device comprising:
a diaphragm;
an electrodynamic vibrator that vibrates the diaphragm to output sound;
a piezoelectric vibrator that vibrates the diaphragm to output sound;
an LPF that performs filtering to block a high frequency band component on an acoustic signal; and
an HPF that performs filtering to block a low frequency band component on the acoustic signal,
wherein the electrodynamic vibrator vibrates the diaphragm on a basis of a signal obtained by the LPF, and
the piezoelectric vibrator vibrates the diaphragm on a basis of a signal obtained by the HPF.