公开(公告)号：US11128956B2

公开(公告)日：2021-09-21

申请号：US16620927

申请日：2018-06-14

Applicant: SONY CORPORATION

Inventor： Kohei Kikuchi ,  Nobukazu Suzuki

IPC: H04R7/18 ,  H04R7/12 ,  H04R9/02 ,  H04R9/06

Abstract: An edge including an inner notch extending in a diaphragm-side region, and an outer notch extending in a frame-side region near the inner notch, in which the inner notch and the outer notch have a depression with a depth equal to or larger than a thickness, and an angle B formed by an extending direction of the outer notch with respect to a line radially extending from an edge center is larger than an angle A formed by an extending direction of the inner notch with respect to the line.

公开(公告)号：US10993018B2

公开(公告)日：2021-04-27

申请号：US15533736

申请日：2015-11-09

Applicant: SONY CORPORATION

Inventor： Kohei Kikuchi ,  Yohei Fukuma ,  Nobukazu Suzuki ,  Kazuhiro Matsutani ,  Yoshio Ohashi ,  Yasuo Kawabata

IPC: H04R1/24 ,  H04R1/06 ,  H04R17/00 ,  H04R7/12 ,  F21V3/00 ,  F21V23/00 ,  F21V33/00 ,  H04R1/02 ,  H04R1/26 ,  H04R1/32 ,  H04R3/14 ,  H04R1/34 ,  H04R1/28 ,  F21Y115/10

Abstract: Generation of a secondary sound source is inhibited, and a sound quality is improved. Included are a support fixed to a mount base, a speaker unit including a portion to be fixed, and a base casing holding the speaker unit, and the speaker unit is fixed to the support and the base casing with the portion to be fixed being sandwiched between the support and the base casing. With this configuration, the speaker unit will be held stably, a great oscillation from a diaphragm of the speaker unit is less transmitted to the parts other than the diaphragm of the speaker unit, to the member holding the speaker unit, or the like. Generation of a secondary sound source is inhibited, and a sound quality can be improved.

公开(公告)号：US10405100B2

公开(公告)日：2019-09-03

申请号：US15533695

申请日：2015-11-09

Applicant: SONY CORPORATION

Inventor： Yohei Fukuma ,  Kohei Kikuchi ,  Nobukazu Suzuki ,  Kazuhiro Matsutani ,  Yasuo Kawabata

IPC: H04R1/02 ,  H04R1/24 ,  H04R1/40 ,  H04R7/12 ,  F21V33/00 ,  H04R15/00 ,  H04R17/00 ,  F21Y105/18 ,  F21Y115/10

Abstract: A sound conversion efficiency and a sound quality is improved. Included are an oscillating element that is expanded and contracted in response to a drive signal, two oscillating bodies that are positioned on opposite sides across the oscillating elements, have end faces arranged respectively in contact with both ends of the oscillating element in an expanding and contracting direction, and are oscillated by expansion and contraction of the oscillating element, and an urging spring that urges the two oscillating bodies and press the end faces against both the ends, respectively. Thus, the oscillating element is expanded and contracted, and the oscillating bodies are oscillated with the end faces of the oscillating bodies urged by the urging spring being in contact with both the ends of the oscillating element in the expanding and contracting direction of the oscillating element.