公开(公告)号：US20220174407A1

公开(公告)日：2022-06-02

申请号：US17538121

申请日：2021-11-30

Applicant: Alps Alpine Co., LTD

Inventor： Ryo ITO

IPC: H04R7/02 ,  B60R11/02

Abstract: One form of an in-vehicle sound emitting device includes a front case and a rear case. The front case is partitioned from the rear case by a partition plate made from a metal plate. Rear space inside the rear case is sealed, and an electronic circuit is disposed in the rear space. A loudspeaker is mounted in front space inside the front case. By using two of the partition plates having the same structure, the front case having the incorporated loudspeaker and the rear case having the incorporated electronic circuit can be disposed separately.

公开(公告)号：US20250048032A1

公开(公告)日：2025-02-06

申请号：US18783993

申请日：2024-07-25

Applicant: ALPS ALPINE CO., LTD.

Inventor： Ryo ITO ,  Heishiro FUDO

IPC: H04R7/04 ,  H04R7/16 ,  H04R17/00 ,  H04R31/00

Abstract: A transducer includes a flexible substrate, a piezoelectric element formed on a surface of the flexible substrate, and a support member, in which holes are formed, having a higher rigidity than the flexible substrate. The surface of the flexible substrate has an element region in which the piezoelectric element is continuous in a planar direction of the piezoelectric element. The support member is stacked to the flexible substrate in a manner such that the holes face the element region. The flexible substrate is freely movable in each of the holes, and a region of the flexible substrate corresponding to a region other than the holes of the support member is fixed to the support member.

公开(公告)号：US20240340573A1

公开(公告)日：2024-10-10

申请号：US18618237

申请日：2024-03-27

Applicant: ALPS ALPINE CO., LTD.

Inventor： Ryo ITO

IPC: H04R1/24 ,  B60N2/879 ,  H04R3/12

CPC classification number: H04R1/24 ,  B60N2/879 ,  H04R3/12 ,  H04R2499/13

Abstract: An audio output device for outputting a sound corresponding to a first audio signal toward a first user in front of a second user and a sound corresponding to a second audio signal toward the second user in back of the first user is provided. The audio output device includes a first speaker configured to output a sound having a low-frequency component of the first audio signal toward the first user, and a sound having a high-frequency component of the second audio signal toward the second user; and a second speaker configured to output a sound having low-frequency and middle-frequency components of the second audio signal toward the second user. The first speaker is disposed in a vicinity of the first user, and the second speaker is disposed in a vicinity of the second user.

公开(公告)号：US20240284095A1

公开(公告)日：2024-08-22

申请号：US18583071

申请日：2024-02-21

Applicant: ALPS ALPINE CO., LTD.

Inventor： Ryo ITO

IPC: H04R1/28 ,  B60N2/879 ,  H04R1/24 ,  H04R5/02

CPC classification number: H04R1/2826 ,  B60N2/879 ,  H04R1/24 ,  H04R5/023 ,  H04R2499/13

Abstract: With a vehicle-mounted acoustic device, a bass-reflex speaker system, composed of an enclosure, ducts, and a speaker unit, is accommodated in a head restraint. Each duct has a large ratio of the duct length to the area of the duct cross section to increase the load mass of air in the duct, so that the resonant frequency of the vibration unit in the speaker unit can be set in a frequency band lower than the resonant frequency of a Helmholtz resonator. Thus, sound pressure in a low-frequency band equal to or lower than the resonant frequency of the Helmholtz resonator can be emphasized and the emphasized sound pressure can be given to the ear.

公开(公告)号：US20240348956A1

公开(公告)日：2024-10-17

申请号：US18628207

申请日：2024-04-05

Applicant: ALPS ALPINE CO., LTD.

Inventor： Ryo ITO

IPC: H04R1/02 ,  H04R1/40

CPC classification number: H04R1/025 ,  H04R1/403 ,  H04R2201/02

Abstract: An acoustic apparatus includes at least two speakers, each of the speakers having a sound producing direction directed to a corresponding ear of left and right ears of a listener; and an enclosure covering a back portion of a corresponding speaker of the speakers. An opening to open the enclosure is provided at a position further away from the corresponding ear than the corresponding speaker of the speakers. An opening area of the opening is greater than or equal to an effective vibration area of each of the speakers.

公开(公告)号：US20240365034A1

公开(公告)日：2024-10-31

申请号：US18643261

申请日：2024-04-23

Applicant: ALPS ALPINE CO., LTD.

Inventor： Ryosuke TACHI ,  Ryo ITO

IPC: H04R1/02 ,  H04R1/34

CPC classification number: H04R1/023 ,  H04R1/345 ,  H04R2217/03 ,  H04R2499/13

Abstract: A speaker that is configured to emit ultrasonic waves includes an ultrasonic emission unit, a reflector, and a louver unit. The ultrasonic emission unit is configured to emit ultrasonic waves in an emission direction. The reflector is disposed at a side of the ultrasonic emission unit from which the ultrasonic waves are emitted. The reflector is configured to reflect the ultrasonic waves emitted from the ultrasonic emission unit in a predetermined direction. The louver unit is disposed between the ultrasonic emission unit and the reflector. The louver unit includes slits formed therein in a manner such that the slits do not change a direction of the ultrasonic waves between the ultrasonic emission unit and the reflector, and do not change a direction of the ultrasonic waves reflected by the reflector. The louver unit is configured to inhibit entry of foreign matter into the ultrasonic emission unit.

公开(公告)号：US20240336181A1

公开(公告)日：2024-10-10

申请号：US18624560

申请日：2024-04-02

Applicant: ALPS ALPINE CO., LTD.

Inventor： Ryo ITO

IPC: B60N2/879 ,  B60N2/00 ,  H04R3/00 ,  H04R5/02

CPC classification number: B60N2/879 ,  B60N2/002 ,  H04R3/005 ,  H04R5/023 ,  H04R2499/13

Abstract: An in-vehicle conversation device amplifies a sound of a passenger collected by a front row microphone by a front row sound amplifier and outputs the sound from speakers and provided more outward than a head position of a passenger of a back row seat relative to the microphone, amplifies a sound of a passenger collected by a back row microphone by a back row sound amplifier and outputs the sound from speakers and provided more outward than a head position of a passenger of a front row seat relative to the microphone.

公开(公告)号：US20250039603A1

公开(公告)日：2025-01-30

申请号：US18769792

申请日：2024-07-11

Applicant: ALPS ALPINE CO., LTD.

Inventor： Ryo ITO

IPC: H04R3/04 ,  H04R7/16

Abstract: An acoustic apparatus includes an enclosure, a duct communicating into an inner space of the enclosure, and a speaker unit configured to transmit sound pressures in opposite phases to an inside and an outside of the enclosure, respectively, wherein at least the enclosure and the speaker unit are fixed to a seat, wherein a resonant frequency Fd of a Helmholtz resonator composed of the enclosure and the duct is higher than a resonant frequency F0 of a vibration mass including a mass of a vibrating part of the speaker and a load mass of air in the duct, and wherein a listening position is situated at a position where a direct distance Ld from an exit of the duct is shorter than a direct distance Ls from a diaphragm of the speaker unit.

公开(公告)号：US20250030968A1

公开(公告)日：2025-01-23

申请号：US18768464

申请日：2024-07-10

Applicant: ALPS ALPINE CO., LTD.

Inventor： Ryo ITO

IPC: H04R1/02 ,  B60N2/879 ,  B60N2/90

Abstract: A bodily-sensible acoustic device includes an operation part, speaker, amplifier, vibrator, vibration driver, and gain setting part. The operation part is operated by a user. The speaker is arranged in a position that allows the user to hear a sound output from the speaker. The amplifier is configured to amplify an input audio signal at a first gain to output the amplified input audio signal. The vibrator is arranged in a position that enables vibrations of the vibrator to be transmitted to the user. The vibration driver is configured to vibrate the vibrator according to a signal obtained by amplifying the input audio signal at a second gain. The gain setting part is configured to set the first gain and the second gain according to an operation amount of the operation part, where the first gain and the second gain are set to have different gain characteristics.

公开(公告)号：US20220210546A1

公开(公告)日：2022-06-30

申请号：US17560537

申请日：2021-12-23

Applicant: Alps Alpine Co., LTD

Inventor： Ryo ITO

IPC: H04R1/28 ,  H04R1/02 ,  H04R7/12

Abstract: An acoustic device includes a main body case, a vibrating body provided inside of the main body case, a magnetic circuit unit disposed in front of the vibrating body in a sound emitting direction of the vibrating body, a coil located inside of a magnetic gap of the magnetic circuit unit, a bobbin configured to support the coil and vibrate along with the vibrating body, and a damper configured to connect the main body case to the bobbin. The damper is disposed in the rear of the vibrating body, and a damper regulation unit is provided in the rear of the damper at a position facing the damper.