Speaker device and area reproduction apparatus

Patent metadata

Field	Value
Publication number	US-11057699-B2
Application number	US-202016780279-A
Country	US
Kind code	B2
Filing date	Feb 3, 2020
Priority date	Feb 13, 2019
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

A speaker device includes a speaker that outputs sound, a horn that emits sound output from the speaker, and a slit opening that is formed on a front surface of the horn, a vertical side of the slit opening being longer than a horizontal side of the slit opening. It is possible to prevent reflection of unnecessary sound in a vertical direction and enhance sound reproduction performance in a horizontal direction.

First claim

The invention claimed is:

1. A speaker device, comprising:
a speaker that outputs sound;
a horn that emits the sound output from the speaker;
a connecting part that connects the speaker and the horn and has a space inside; and
a slit opening that is formed on a front surface of the horn, a vertical side of the slit opening being longer than a horizontal side of the slit opening,
wherein the connecting part includes a front panel provided in a direction of outputting the sound and a sound conduit that penetrates the front panel and is connected to a rear end part of the horn, and
a gap is formed between a rear end part of the sound conduit and a front surface of the speaker.

2. The speaker device according to claim 1 ,
wherein the speaker device is used for a speaker array that reproduces the sound in a predetermined area, and
a plurality of speaker devices are arranged in the speaker array.

3. The speaker device according to claim 1 ,
wherein the slit opening is formed inside of an outer edge of the front surface of the horn.

4. The speaker device according to claim 1 ,
wherein an outer edge of the slit opening matches an outer edge of the front surface of the horn.

5. The speaker device according to claim 1 ,
wherein the connecting part removes sound in a predetermined frequency band from the sound output from the speaker.

6. The speaker device according to claim 5 ,
wherein the connecting part connects the speaker and the horn with a center of the speaker matching a center of the horn.

7. The speaker device according to claim 5 ,
wherein the connecting part connects the speaker and the horn with a center of the speaker shifting from a center of the horn.

8. The speaker device according to claim 1 ,
wherein the horn includes a folding part that reflects the sound in a direction opposite to a direction of outputting the sound and a reflecting part that reflects the sound reflected by the folding part again in the direction of outputting the sound.

9. An area reproduction apparatus, comprising:
a speaker array in which a plurality of speaker devices are arranged; and
an output controller that adjusts a sound pressure of sound to be output from each of the plurality of speaker devices and reproduces the sound in a predetermined area, based on a control line including a reproduction line in which sound waves emitted from the speaker array are intensified and a non-reproduction line in which the sound waves are weakened,
wherein each of the plurality of speaker devices is the speaker device according to claim 1 .

Assignees

• Panasonic Ip Corp America

Inventors

• Sakaguchi Atsushi
• Matsumura Toshiyuki

Classifications

• H04R1/30 Primary

  Combinations of transducers with horns, e.g. with mechanical matching means {, i.e. front-loaded horns}(horns in general G10K; {transducer enclosures or mountings using a back-loaded horn H04R1/2861; application of horns as guiding means to obtain a predetermined directivity characteristic H04R1/345}) · CPC title

• H04R1/2842

  for loudspeaker transducers · CPC title

• H04R3/12

  for distributing signals to two or more loudspeakers {(specially adapted for hearing aids H04R25/407)} · CPC title

• H04R1/403

  loud-speakers · CPC title

• H04R2201/403

  Linear arrays of transducers · CPC title