# US 10,484,790 B1 · Speaker device for vehicle

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- Number: US 10,484,790 B1
- Document ID: US10484790B1
- Status: Granted
- Kind: B1
- Application number: 16/255,540
- Filed: 2019-01-23
- Granted: 2019-11-19
- Earliest claimed: 2018-10-23
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; Kia Motors Corporation
- Inventors: Byoungyoon Kim; Yonghwan Hwang
- Web page: https://patentgrep.com/patent/US10484790B1

## CPC

- H04R 1/345: {for loudspeakers}
- H04R 1/025: {Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture}
- H04R 1/2811: {for loudspeaker transducers}
- H04R 2201/025: Transducer mountings or cabinet supports enabling variable orientation of transducer of cabinet
- H04R 2499/13: Acoustic transducers and sound field adaptation in vehicles
- H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K)

## Abstract

Disclosed is a speaker device for a vehicle capable of directing sounds in a wide frequency range. The speaker device includes: a speaker unit, and an acoustic reflector unit provided on an upper portion of the speaker unit. In particular, the acoustic reflector unit includes a plurality of acoustic reflectors having different curvatures, and the plurality of acoustic reflectors are provided to be stacked on one another.

## Claims

### Claim 1

A speaker device for a vehicle, comprising:
a speaker unit; and
an acoustic reflector unit provided on an upper portion of the speaker unit,
wherein the acoustic reflector unit includes a plurality of acoustic reflectors having different curvatures, and acoustic reflectors of the plurality of acoustic reflectors are provided to be stacked on one another, and
wherein the acoustic reflector unit includes a rotation unit configured to rotate the plurality of acoustic reflectors.

### Claim 2 (depends on 1)

The speaker device according to claim 1, wherein the acoustic reflectors of the plurality of acoustic reflectors are formed in different sizes.

### Claim 3 (depends on 2)

The speaker device according to claim 2, wherein the acoustic reflectors of the plurality of acoustic reflectors are formed in a dome shape.

### Claim 4 (depends on 3)

The speaker device according to claim 3, wherein
the acoustic reflector unit includes a plurality of acoustic filters, and acoustic filters of the plurality of acoustic filters are ring-shaped.

### Claim 5 (depends on 4)

The speaker device according to claim 4, wherein
the acoustic filters of the plurality of acoustic filters and the acoustic reflectors of the plurality of acoustic reflectors are alternatively disposed.

### Claim 6 (depends on 4)

The speaker device according to claim 4, wherein
the acoustic filters of the plurality of acoustic filters are formed in different sizes.

### Claim 7 (depends on 1)

The speaker device according to claim 1, wherein
the acoustic reflector unit includes a driving unit configured to move the plurality of acoustic reflectors up and down.

### Claim 8

A speaker device for a vehicle comprising:
a speaker unit; and
an acoustic reflector unit disposed on an upper portion of the speaker unit,
wherein the acoustic reflector unit includes a plurality of acoustic reflectors having different curvatures and an acoustic filter provided at each acoustic reflector of the plurality of acoustic reflectors, and
acoustic reflectors of the plurality of acoustic reflectors and the acoustic filters are alternately stacked on one another.

### Claim 9 (depends on 8)

The speaker device according to claim 8, wherein
the acoustic reflectors of the plurality of acoustic reflectors are formed in a dome shape.

### Claim 10 (depends on 8)

The speaker device according to claim 8, wherein
the acoustic filters are formed in a ring shape.