US 12,231,861 B2
Signal processing device, signal processing method, and image display device
Hiroaki Maeshiba, Tokyo (JP); and Hiroshi Yoshioka, Kanagawa (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/755,343
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Oct. 30, 2020, PCT No. PCT/JP2020/040821
§ 371(c)(1), (2) Date Apr. 27, 2022,
PCT Pub. No. WO2021/090770, PCT Pub. Date May 14, 2021.
Claims priority of application No. 2019-201198 (JP), filed on Nov. 6, 2019.
Prior Publication US 2022/0369032 A1, Nov. 17, 2022
Int. Cl. H04R 3/04 (2006.01)
CPC H04R 3/04 (2013.01) [H04R 2499/15 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A signal processing device, comprising:
a control unit configured to:
control each of a plurality of actuators, wherein
each actuator of the plurality of actuators is configured to drive a display unit based on an acoustic signal, and
each actuator of the plurality of actuators corresponds to a respective region of a plurality of regions of the display unit;
select a first region of the plurality of the regions based on a luminance of an image displayed in the display unit and a frequency characteristic of the acoustic signal corresponding to the first region; and
execute low band component reduction processing to reduce a low band component of the acoustic signal of the first region of the plurality of regions to drive an actuator of the plurality of actuators,
wherein the execution is based on the luminance of the image displayed in the first region of the display unit.