# US 2019/0246198 A1 · Speaker system

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2019/0246198 A1
- Document ID: US20190246198A1
- Status: Published application
- Kind: A1
- Application number: 16/266,696
- Filed: 2019-02-04
- Published: 2019-08-08
- Earliest claimed: 2018-02-07
- Assignees: Panasonic Intellectual Property Corporation of America
- Applicants: Panasonic Intellectual Property Corporation of America
- Inventors: Toshiyuki MATSUMURA; Shuji SAIKI
- Web page: https://patentgrep.com/patent/US20190246198A1

## CPC

- H04R 1/288: {for loudspeaker transducers}
- H04R 1/2819: {for loudspeaker transducers}
- H04R 1/2826: {for loudspeaker transducers}
- H04R 1/2857: {for loudspeaker transducers}
- H04R 2499/15: Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
- 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

A speaker system includes a speaker unit that outputs sound, a cabinet having a wall to which the speaker unit is attached, and an acoustic transmission tube that is disposed inside the cabinet and has an open end and a closed end, the acoustic transmission tube having an aperture in a side wall.

## Claims

### Claim 1

A speaker system, comprising:
a speaker unit that outputs sound;
a cabinet having a wall to which the speaker unit is attached; and
an acoustic transmission tube that is disposed inside the cabinet, and has an open end and a closed end, wherein
the acoustic transmission tube has an aperture in a side wall.

### Claim 2 (depends on 1)

The speaker system according to claim 1, wherein
the aperture is a slit along a direction in which the acoustic transmission tube extends.

### Claim 3 (depends on 1)

The speaker system according to claim 1, wherein
the aperture comprises a plurality of holes arranged along a direction in which the acoustic transmission tube extends.

### Claim 4 (depends on 1)

The speaker system according to claim 1, wherein
the acoustic transmission tube has:
a first space;
a second space that is substantially perpendicular to the direction in which the acoustic transmission extends, and communicates with the first space; and
a partition plate that is a part of the side wall, and separates the first space and the second space except in a portion in which the first space and the second space communicate with each other, and
the aperture is disposed in the partition plate.

### Claim 5 (depends on 1)

The speaker system according to claim 1, wherein
the acoustic transmission tube further includes a branch that connects to the aperture.

### Claim 6 (depends on 1)

The speaker system according to claim 1,
further comprising:
a damping cloth that covers the aperture.

### Claim 7 (depends on 1)

The speaker system according to claim 1,
further comprising:
a sound absorbing material disposed at the closed end of the acoustic transmission tube.