IP Library › Granted Patent US 12,413,915
Granted Patent B2
US 12,413,915 · App. 18/361,844 · Granted Sep 9, 2025

Systems and methods for suppressing sound leakage

Inventors: Xin Qi (Shenzhen, CN); Fengyun Liao (Shenzhen, CN); Jinbo Zheng (Shenzhen, CN); Qian Chen (Shenzhen, CN); Hao Chen (Shenzhen, CN); Zeying Zheng (Shenzhen, CN); Jiang Xu (Shenzhen, CN); Haofeng Zhang (Shenzhen, CN); Gan Lai (Shenzhen, CN); Chong Wang (Shenzhen, CN); Liwei Wang (Shenzhen, CN); Ruixin Han (Shenzhen, CN); Lei Zhang (Shenzhen, CN); Junjiang Fu (Shenzhen, CN)
Assignee: SHENZHEN SHOKZ CO., LTD.
H04R25/505G10K9/13G10K9/22G10K11/175G10K11/178G10K11/26H04R1/2811H04R9/066G10K2210/3216H04R1/2876H04R17/00H04R2460/13
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Quick Facts
Patent No.
US 12,413,915
App. No.
18/361,844
Granted
Sep 9, 2025
Kind
B2
Abstract

A speaker comprises a housing, a transducer residing inside the housing, and at least one sound guiding hole located on the housing. The transducer generates vibrations. The vibrations produce a sound wave inside the housing and cause a leaked sound wave spreading outside the housing from a portion of the housing. The at least one sound guiding hole guides the sound wave inside the housing through the at least one sound guiding hole to an outside of the housing. The guided sound wave interferes with the leaked sound wave in a target region. The interference at a specific frequency relates to a distance between the at least one sound guiding hole and the portion of the housing.

Claims (32)

1. An earphone, comprising: a holding component including a housing; a transducer residing inside the housing and configured to generate vibrations, the vibrations producing a sound wave inside the housing; at least two sound guiding holes located on the housing and configured to guide the sound wave inside the housing through the at least two sound guiding holes to an outside of the housing, wherein the at least two sound guiding holes include a first sound guiding hole and a second sound guiding hole, the first sound guiding hole and the second sound guiding hole are located on different side walls of the housing, and the guided sound waves of the first sound guiding hole and the second sound guiding hole have different phases; and a hook-shaped component configured to hang between a rear side of an ear of a user and a head of the user; and a connecting component configured to connect the hook-shaped component and the holding component and cooperate with the hook-shaped component to provide the holding component with a pressing force on the front side of the ear, so that the hook-shaped component and the holding component cooperate to form a clamping for the ear; and wherein the housing includes a specific side wall where no sound guiding hole is located, and a distance from the first sound guiding hole to the specific side wall of the housing is different from a distance from the second sound guiding hole to the specific side wall of the housing.

2. The earphone of claim 1 , wherein the connecting component extend from the head along a coronal axis of the user towards an outside of the head to cooperate with the hook-shaped component.

3. The earphone of claim 1 , wherein in a direction from a first connection point between the hook-shaped component and the connecting component to a free end of the hook-shaped component,

the hook-shaped component is bent toward the rear side of the ear to form a first contact point with the rear side of the ear, and

the holding component forms a second contact point with the front side of the ear, wherein a distance between the first contact point and the second contact point along an extending direction of the connecting component in a natural state is smaller than that in a wearing state to provide the holding component with the pressing force on the front side of the ear.

4. The earphone of claim 3 , wherein the hook-shaped component further forms a third contact point with the rear side of the ear, the third contact point being located between the first connection point and the first contact point and being closer to the first connection point, wherein

a distance between projections of the first contact point and the third contact point on a reference plane perpendicular to the extending direction of the connecting component in the natural state is smaller than that in the wearing state.

5. The earphone of claim 1 , wherein in a direction from a first connection point between the hook-shaped component and the connecting component to a free end of the hook-shaped component, the hook-shaped component is bent toward the head to form a first contact point and a second contact point with the head, wherein

the first contact point is located between the second contact point and the first connection point, so that the hook-shaped component forms a lever structure with the first contact point as a fulcrum; and

a force directed to the outside of the head and provided by the head at the second contact point causes a force directed to the head at the first connection point by the lever structure to provide the holding component with the pressing force on the front side of the ear through the connecting component.

6. The earphone of claim 1 , wherein the holding component extends and is held in a concha boat of the ear.

7. The earphone of claim 1 , wherein an elastic metal wire is arranged inside the hook-shaped component, the elastic metal wire has a major axis direction and a minor axis direction orthogonal to each other on a cross section of the elastic metal wire, and a size of the elastic metal wire in the major axis direction is greater than a size of the elastic metal wire in the minor axis direction, so that the hook-shaped component and the holding component cooperate to form an elastic clamping for the ear.

8. The earphone of claim 7 , wherein a ratio of the size of the elastic metal wire in the major axis direction to the size of the elastic metal wire in the minor axis direction is between 4:1 and 6:1.

9. The earphone of claim 7 , wherein the elastic metal wire is in a shape of an arc in the minor axis direction, and a ratio of a height of the arc to the size of the elastic metal wire in the major axis direction is within a range of 0.1-0.4.

10. The earphone of claim 1 , further including an extending component, wherein

the extending component is arranged on the holding component, and extends into any one of a concha cavity, a concha boat, a triangular fossa, and a scapha of the ear in the wearing state; and/or

the extending component is arranged on the hook-shaped component, and hooks a helix and/or an antihelix of the ear in the wearing state.

11. The earphone of claim 1 , wherein the holding component has a thickness direction, a length direction, and a height direction orthogonal to each other, the thickness direction is configured as a direction in which the holding component is close to or away from the ear in the wearing state, and the height direction is configured as a direction in which the holding component is close to or away from a top of the user's head in the wearing state, wherein

in the natural state, and viewed from a side of the earphone facing the top of the user's head in the wearing state, the holding component is at least spaced apart from a section of the hook-shaped component close to the connecting component in the thickness direction; and

the connecting component is arranged in a shape of an arc and connected between the holding component and the hook-shaped component.

12. The earphone of claim 11 , wherein in the thickness direction, a minimum distance between the section of the hook-shaped component close to the connecting component and the holding component is greater than 0 and smaller than or equal to 5 mm.

13. The earphone of claim 11 , wherein

edges of the section of the hook-shaped component close to the connecting component, the connecting component, and the holding component facing the ear are arranged in a shape of a circuitous arc; and

in a reference direction that passes through a roundabout inflection point of the circuitous arc and is parallel to the length direction, a minimum width of the circuitous arc along the thickness direction at a position 3 mm away from the roundabout inflection point is in a range of 1 mm to 5 mm.

14. The earphone of claim 11 , wherein the at least two sound guiding holes include a sound guiding hole disposed on a side of the holding component facing the ear, and a distance between a center of the sound guiding hole and the section of the hook-shaped component close to the connecting component in the thickness direction is in a range of 3 mm to 6 mm.

15. The earphone of claim 11 , wherein a side of the holding component facing the ear includes a first region and a second region, wherein

the at least two sound guiding holes include a sound guiding hole disposed in the first region; and

the second region is farther away from the connecting component than the first region and is more protruding toward the ear than the first region, so as to allow the sound guiding hole to be spaced from the ear in the wearing state.

16. The earphone of claim 15 , wherein a distance between the second region and the section of the hook-shaped component close to the connecting component in the thickness direction is in a range of 1 mm to 5 mm.

17. The earphone of claim 16 , wherein an orthographic projection of the section of the hook-shaped component close to the connecting component in the thickness direction partially overlaps the second region.

18. The earphone of claim 15 , wherein a maximum protrusion height of the second region relative to the first region in the thickness direction is greater than or equal to 1 mm.

19. The earphone of claim 1 , wherein the holding component is in contact with an antihelix of the ear.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 2, 2023
From: QI, XIN; LIAO, FENGYUN; ZHENG, JINBO; CHEN, QIAN; CHEN, HAO; ZHENG, ZEYING; XU, JIANG; ZHANG, HAOFENG; LAI, GAN; WANG, CHONG; WANG, LIWEI; HAN, RUIXIN; ZHANG, LEI; FU, JUNJIANG
To: SHENZHEN SHOKZ CO., LTD.
Reel/Frame 064462/0786 →
Priority Claims (3)
CN 201410005804.0 · Jan 6, 2014 · national
CN 202010743396.4 · Jul 29, 2020 · national
CN 202011328519.4 · Nov 24, 2020 · national
Continuity (14)
Continuation In Part 18308760 · Apr 28, 2023
Continuation 17804611 · May 31, 2022
Continuation 17170874 · Feb 8, 2021
Continuation In Part 17074762 · Oct 20, 2020
Continuation In Part 16813915 · Mar 10, 2020
Continuation 16419049 · May 22, 2019
Continuation 16180020 · Nov 5, 2018
Continuation 15650909 · Jul 16, 2017
Continuation 15109831
Continuation In Part 16833839 · Mar 30, 2020
Continuation 15752452
Continuation In Part 17457258 · Dec 2, 2021
Continuation In Part PCTCN2021109154 · Jul 29, 2021
Related Publication 20230379639A1 · Nov 23, 2023
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The Extended European Search Report in European Application No. 22216662.1 mailed on Apr. 28, 2023, 12 pages. [cited by applicant]
The Extended European Search Report in European Application No. 21850910.7 mailed on Jul. 11, 2023, 13 pages. [cited by applicant]
International Search Report in PCT/CN2021/109154 mailed on Nov. 3, 2021, 7 pages. [cited by applicant]
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Notice of Preliminary Rejection in Korean Application No. 10-2022-7042942 mailed on Nov. 21, 2023, 8 pages. [cited by applicant]
Notice of Preliminary Rejection in Korean Application No. 10-2022-7045388 mailed on Nov. 29, 2023, 8 pages. [cited by applicant]
The Extended European Search Report in European Application No. 24223173.6 mailed on Apr. 30, 2025, 10 pages. [cited by applicant]