公开(公告)号：US12160716B2

公开(公告)日：2024-12-03

申请号：US17872673

申请日：2022-07-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Fumiyasu Konno ,  Masahide Onishi

IPC: H04R5/02 ,  H04R1/02

Abstract: A loudspeaker system includes: a first cushion body near which a head of a person is to be located when the person is seated or recumbent; and a first loudspeaker that is provided to the first cushion body and outputs ultrasound toward the head.

公开(公告)号：US11750975B2

公开(公告)日：2023-09-05

申请号：US17691671

申请日：2022-03-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Fumiyasu Konno ,  Masahide Onishi

IPC: H04R3/04 ,  G06F7/50

CPC classification number: H04R3/04 ,  G06F7/50

Abstract: A signal processing device includes: an obtainer that obtains sound data; a pitch controller that controls pitch of the sound data obtained to increase the pitch by a factor of n (a real number greater than 1); an extractor that extracts frequency components of at least 20 kHz which are included in the sound data whose pitch is controlled; an adder that adds the frequency components extracted to the sound data obtained; and an outputter that outputs sound data to which the frequency components extracted are added.