Acoustic output apparatus

Patent metadata

Field	Value
Publication number	US-12160696-B2
Application number	US-202318502124-A
Country	US
Kind code	B2
Filing date	Nov 6, 2023
Priority date	Apr 30, 2019
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

The present disclosure discloses an acoustic output apparatus. The acoustic output apparatus may include at least one acoustic driver. The at least one acoustic driver may generate sound that is output through at least two sound guiding holes. Further, the acoustic output apparatus may include a supporting structure. The supporting structure may be configured to support the at least one acoustic driver. A baffle may be disposed between the at least two sound guiding holes. The baffle may increase an acoustic distance from at least one sound guiding hole of the at least two sound guiding holes to a user's ear.

First claim

What is claimed is:

1. An acoustic output apparatus, comprising:
at least one acoustic driver configured to generate sound that is output through at least two sound guiding holes; and
a supporting structure suitable for wearing on a user's body and configured to support the at least one acoustic driver, wherein the supporting structure functions as a baffle to increase an acoustic distance from one of the at least two sound guiding holes to the user's ear, and a ratio of a height of the baffle to a distance between the at least two sound guiding holes is less than or equal to 2.

2. The acoustic output apparatus of claim 1 , wherein the ratio of the height of the baffle to the distance between the at least two sound guiding holes is less than or equal to 1.8.

3. The acoustic output apparatus of claim 1 , wherein the ratio of the height of the baffle to the distance between the at least two sound guiding holes is less than or equal to 1.

4. The acoustic output apparatus of claim 1 , wherein
the at least one acoustic driver includes a vibration diaphragm,
a front side of the vibration diaphragm in the supporting structure is provided with a front chamber for transmitting sound, the front chamber being acoustically coupled with one sound guiding hole of the at least two sound guiding holes, and
a rear side of the vibration diaphragm in the supporting structure is provided with a rear chamber for transmitting sound, the rear chamber being acoustically coupled with another sound guiding hole of the at least two sound guiding holes.

5. The acoustic output apparatus of claim 4 , wherein the at least two sound guiding holes output at least one set of sounds with opposite phases.

6. The acoustic output apparatus of claim 1 , wherein the at least two sound guiding holes output at least one set of sounds having a phase difference.

7. The acoustic output apparatus of claim 1 , wherein the supporting structure is configured such that each of the at least two sound guiding holes is located on a front side of the user's ear.

8. The acoustic output apparatus of claim 1 , wherein
one of the at least two sound guiding holes is located on a side of the supporting structure facing the user's ear, and
another one of the at least two sound guiding holes is located on a side of the supporting structure facing away from the user's ear.

9. The acoustic output apparatus of claim 1 , wherein a distance between the at least two sound guiding holes is less than or equal to 6 cm.

10. The acoustic output apparatus of claim 1 , wherein a ratio of a distance between a structural center of the supporting structure and a connection line between the at least two sound guiding holes to the height of the baffle is less than or equal to 2.

11. The acoustic output apparatus of claim 1 , wherein a ratio of a distance between a structural center of the supporting structure and a connection line between the at least two sound guiding holes to the height of the baffle is less than or equal to 1.5.

12. The acoustic output apparatus of claim 1 , wherein a ratio of a distance between a structural center of the supporting structure and a connection line between the at least two sound guiding holes to the height of the baffle is less than or equal to 1.

13. The acoustic output apparatus of claim 1 , wherein a ratio of a distance between a structural center of the supporting structure and a connection line between the at least two sound guiding holes to the height of the baffle is less than or equal to 0.5.

14. The acoustic output apparatus of claim 1 , wherein a ratio of a distance between a structural center of the supporting structure and a connection line between the at least two sound guiding holes to the height of the baffle is less than or equal to 0.3.

15. The acoustic output apparatus of claim 1 , wherein the at least two sound guiding holes are located on a same side of the user's ear, a ratio of a distance between a sound guiding hole, which is closer to the user's ear, of the at least two sound guiding holes and the user's ear to a distance between the at least two sound guiding holes being less than or equal to 3.

16. The acoustic output apparatus of claim 15 , wherein one of the at least two sound guiding holes is located on a front side of the user's ear, and another one of the at least two sound guiding holes is located on a back side of the user's ear.

17. The acoustic output apparatus of claim 1 , wherein the at least two sound guiding holes are set horizontally.

18. The acoustic output apparatus of claim 1 , wherein the supporting structure is made of acoustic resistance material.

19. The acoustic output apparatus of claim 18 , wherein the acoustic resistance material includes at least one of plastic, textile, metal, permeable material, woven material, screen material, mesh material, porous material, particulate material, or polymer material.

20. The acoustic output apparatus of claim 18 , wherein the acoustic resistance material has acoustic impedance, the acoustic impedance being in a range of 5-500 MKS Rayleigh.

Assignees

• Shenzhen Shokz Co Ltd

Inventors

• Zhang Lei
• Fu Junjiang
• Yan Bingyan
• Liao Fengyun
• Qi Xin

Classifications

• H04M1/035

  Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities · CPC title

• G02C11/00

  Non-optical adjuncts; Attachment thereof (G02C7/16 takes precedence) · CPC title

• H04R1/2811

  for loudspeaker transducers · CPC title

• H04R1/2807

  Enclosures comprising vibrating or resonating arrangements (for the reduction of undesired resonances or vibrations H04R1/2869) · CPC title

• H04R2410/05

  Noise reduction with a separate noise microphone · CPC title