WO2021006833A1 - In-ear headphone with private acoustic room - Google Patents

In-ear headphone with private acoustic room Download PDF

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Publication number
WO2021006833A1
WO2021006833A1 PCT/TR2019/050567 TR2019050567W WO2021006833A1 WO 2021006833 A1 WO2021006833 A1 WO 2021006833A1 TR 2019050567 W TR2019050567 W TR 2019050567W WO 2021006833 A1 WO2021006833 A1 WO 2021006833A1
Authority
WO
WIPO (PCT)
Prior art keywords
driver
acoustic path
hole
ear
acoustic
Prior art date
Application number
PCT/TR2019/050567
Other languages
French (fr)
Inventor
Yavuz SAYGIN
Original Assignee
Saygin Yavuz
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saygin Yavuz filed Critical Saygin Yavuz
Priority to PCT/TR2019/050567 priority Critical patent/WO2021006833A1/en
Publication of WO2021006833A1 publication Critical patent/WO2021006833A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016—Earpieces of the intra-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2846—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/11—Aspects relating to vents, e.g. shape, orientation, acoustic properties in ear tips of hearing devices to prevent occlusion

Definitions

  • the invention relates to an in-ear headphone which includes an acoustic chamber and an acoustic pathway in the class of headphones which are commercially available with a soft silicone ring in the ear called an in-ear monitor or IEM.
  • the invention relates to an acoustic chamber in-ear headphone with a special air outlet, which is obtained by creating an acoustic path in a special geometric structure and which controls the air outlet of the rear part of the sound-producing driver.
  • Headphones are known as three types on the market. These are in-ear without silicone isolation, IEM with silicone isolation, and over-the-ear types. Although there are more subtypes, each type of headset generally has its own advantages and disadvantages. Of these, the in-ear headphones do not include an acoustic path or space between the driver from which the sound comes out and the headphone sound outlet port, in order to distribute the sound to different frequencies. With these types of headphones, the driver is stuck in a confined space and the driver's back cavity is closed, making the rear air outlet of the driver inefficient. In the over-the-ear headphones, although there is a sound gap for the headphone audio output, these types of headphones are large and difficult to carry. Some models of on-ear headphones have gaps on the other side of the driver, but not all models.
  • the object of present invention is to provide an in-ear headphone with a special acoustic chamber that incorporates an acoustic path in the silicone in-ear headphones, which incorporates the ergonomic structure of the in-ear headphones and includes the high sound quality of the on-ear headphones.
  • Figure 1 shows a perspective view of an in-ear headphone with the special acoustic chamber.
  • Figure 2 shows the view of the back cover of the in-ear headphone with the special acoustic chamber with the acoustic path visible.
  • Figure 3 shows a side view of an in-ear headphone with the special acoustic chamber.
  • acoustic chamber headphone In-ear headphones with special acoustic chamber (hereinafter referred to as acoustic chamber headphone)
  • the invention relates to an acoustic chamber headphone (1 ) which creates a missing acoustic chamber in the in-ear headphones also known as IEM, which have their audio output ports are covered via silicone rings, including an acoustic path (1.1 ) which has a space (1.6) inside it, a rear cover (1.2) having a distance with the sound driver, a vent hole (1.2.2) located on the rear cover (1.2), a hole (1.8.1 ) in the audio out port (1.8) and a capillary air pipe (1.5) connected between the hole (1.8.1 ) and the vent hole (1.2.2).
  • Acoustic chambers are important for headphones.
  • the main reason for this is that the drivers producing the sound need a distance for the frequencies of the sound during the sound output are divided, so that the sound from a single point can be heard by the eardrum definably.
  • IEM In-ear silicone insulated headphones called standard IEM, the distance between the sound driver and the sound output region is very short, but the other side of the driver is closed. Since the acoustic room in the on-ear headphones, where the highest quality sound is received from the headphones, is not located in the in-ear headphones called IEM, the desired sound quality cannot be achieved in the in-ear headphones.
  • on-ear headphones are inefficient for outside usage, as they have a big structure and cause perspiration due to increased temperature in the ear over time.
  • the acoustic chamber headphone (1 ) which combines the ergonomic structure of the in-ear headphones and the sound quality of the on-ear headphones and improves the sound quality while doing so, is also able to achieve higher quality audio output, especially on analog outputs.
  • the acoustic path (1.1 ) in the acoustic chamber headphone (1 ) of the present invention comprises a unique design as a structure.
  • the acoustic property can be increased by the acoustic path (1.1 ) wood material.
  • wood instead of wood, plastic and similar materials can be used.
  • the rear cover (1.2) which includes the air outlet (1.2.1 ), covers the acoustic path (1.1 ) from the other region of the audio out port (1.8) and has a distance of 2 ⁇ 0.2 mm between the driver.
  • the closed acoustic path (1.1 ) is vented by the driver air outlet (1.2.1 ) and the capillary air pipe (1.5).
  • the main task of the driver air outlet (1.2.1 ) is to improve the quality of sound by controlling the driver's outgoing air.
  • the drivers on standard in-ear headphones are covered on the non-sound side, in addition, there is little or no space between the headphone wall and the driver. Although some models of this type of IEM headset have small vents, they cannot provide a controlled output and, due to their insufficient size, create an adverse pressure in the headset and adversely affect the sound quality.
  • the driver air outlet (1.2.1 ) comprises a porous structure. In this way, the pressure of the incoming air decreases in a controlled manner from the surface of the entire driver air outlet (1.2.1 ).
  • the driver is located 2-3 mm from the audio out port (1.8). As with standard headphones, the driver is powered by the supplied cable or a rechargeable battery. The driver has the same features as standard headset drivers available on the market.
  • the acoustic path (1.1 ) has a geometrically unique structure, the volume of the user can be increased or decreased relative to the ear size.
  • the material forming the acoustic path (1.1 ) has a wall thickness of 2-3 mm, providing the isolation required for high-quality sound, while ensuring that the space (1.6) reaches a sufficient size.
  • the invention is an acoustic chamber headphone (1 ) comprising a driver and an audio cable (1.7) in each headset a rear cover (1.2) with an acoustic path (1.1 ), a driver air outlet
  • a sound outlet port comprising a hole (1.8.1 ) providing a connection, a piece providing an air passageway isolated from the acoustic path
  • the capillary air tube (1.5) comprises a drive location where the driver is located and a cavity (1.6) surrounded by the acoustic path (1.1 ).
  • the hole (1.8.1 ), the capillary air tube (1.5) and the vent (1.2.2) are connected to each other to establish the air connection between the ear and the external environment.
  • the capillary tube (1.5) does not adversely affect the sound flow there as it passes through the acoustic pathway (1.1 ) and thus forms an isolated acoustic chamber and airway.
  • the airway obtained by the capillary air tube (1.5), orifice (1.8.1 ) and the orifice (1.2.2) establishes the pressure balance within the ear and does not have a negative effect on the quality of sound.
  • the ratio of the diameter of the bore (1.8.1 ), the capillary air tube (1.5) and the bore (1.2.2) is greater than the assumed model, it reduces the pressure too much and may cause too much noise from outside. If they are too small they may not be able to reduce the pressure sufficiently.
  • the acoustic path (1.1 ) is characterized in that the angle between the sound outlet port (1.8) and the driver air outlet (1.2.1 ) at its two ends is 90 ⁇ 15 sahip, having a special geometry similar to a spherical structure with an internal cavity (1.6).
  • the acoustic path (1.1 ) includes the driver in such a way that it is located in the driver's location within 2-3 mm of the driver air outlet (1.2.1 ).
  • the driver location may be located on the rear cover (1.2) or the acoustic path (1.1 ). This is because the acoustic path (1.1 ) and the tailgate (1.2) form the acoustic chamber as an integral structure.
  • the capillary air pipe (1.5) is a stainless steel air-permeable tube which makes direct connection between the hole (1.8.1 ) at the audio out port (1.8) and the air hole (1.2.2) on the back cover (1.2).
  • the driver air outlet (1.2.1 ) is located on the other side of the sound output direction of the driver.
  • driver air outlet (1.2.1 ) is a porous surface.
  • the rear cover (1.2) has the feature that the diameter of the vent hole (1.2.2) on which it holds is equal to the outer diameter of the capillary air pipe (1.5).
  • the hole (1.8.1 ) has the feature that its diameter is equal to the outer diameter of the capillary air pipe (1.5).
  • the drive location is of a geometric structure such that the drive fits into the edges of the drive.
  • the audio out port (1.8) has a cylindrical structure around which silicone rings of various sizes can be inserted into the ear. This is the same as for conventional IEM headphones.
  • the headset of the present invention is not connected to the on-ear headphones that surround the outer part of the headset, but is used only in headphones called IEM which provide insulation in the ear with a flexible silicone rubber-like structure.
  • the acoustic path (1.1 ) and the rear cover (1.2) can be integrally integrated into a single body.
  • Such an application can be made when plastic material is used.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Headphones And Earphones (AREA)

Abstract

The invention relates to an acoustic chamber headphone (1) which creates a missing acoustic chamber in the in-ear headphones also known as IEM, which have their audio output ports are covered via silicone rings, including an acoustic path (1.1) which has a space (1.6) inside it, a rear cover (1.2) having a distance with the sound driver, a vent hole 5 (1.2.2) located on the rear cover (1.2), a hole (1.8.1) in the audio out port (1.8) and a capillary air pipe (1.5) connected between the hole (1.8.1) and the vent hole (1.2.2).

Description

DESCRIPTION
IN-EAR HEADPHONE WITH PRIVATE ACOUSTIC ROOM
Technical Field
The invention relates to an in-ear headphone which includes an acoustic chamber and an acoustic pathway in the class of headphones which are commercially available with a soft silicone ring in the ear called an in-ear monitor or IEM.
More particularly, the invention relates to an acoustic chamber in-ear headphone with a special air outlet, which is obtained by creating an acoustic path in a special geometric structure and which controls the air outlet of the rear part of the sound-producing driver. State of the Art
Headphones are known as three types on the market. These are in-ear without silicone isolation, IEM with silicone isolation, and over-the-ear types. Although there are more subtypes, each type of headset generally has its own advantages and disadvantages. Of these, the in-ear headphones do not include an acoustic path or space between the driver from which the sound comes out and the headphone sound outlet port, in order to distribute the sound to different frequencies. With these types of headphones, the driver is stuck in a confined space and the driver's back cavity is closed, making the rear air outlet of the driver inefficient. In the over-the-ear headphones, although there is a sound gap for the headphone audio output, these types of headphones are large and difficult to carry. Some models of on-ear headphones have gaps on the other side of the driver, but not all models.
Summary Of The Invention
The object of present invention is to provide an in-ear headphone with a special acoustic chamber that incorporates an acoustic path in the silicone in-ear headphones, which incorporates the ergonomic structure of the in-ear headphones and includes the high sound quality of the on-ear headphones.
DESCRIPTION OF THE FIGURES
Figure 1 shows a perspective view of an in-ear headphone with the special acoustic chamber. Figure 2 shows the view of the back cover of the in-ear headphone with the special acoustic chamber with the acoustic path visible.
Figure 3 shows a side view of an in-ear headphone with the special acoustic chamber.
DESCRIPTION OF REFERENCE NUMBERS
1 In-ear headphones with special acoustic chamber (hereinafter referred to as acoustic chamber headphone)
1.1 Acoustic path
1.2 Rear cover
1.2.1 Driver air outlet
1.2.2 Vent ole
1.5 Capillary air pipe
1.6 Space
1.7 Audio cable
1.8 Audio out port
1.8.1 Hole
DETAILED DESCRIPTION OF THE INVENTION
The invention relates to an acoustic chamber headphone (1 ) which creates a missing acoustic chamber in the in-ear headphones also known as IEM, which have their audio output ports are covered via silicone rings, including an acoustic path (1.1 ) which has a space (1.6) inside it, a rear cover (1.2) having a distance with the sound driver, a vent hole (1.2.2) located on the rear cover (1.2), a hole (1.8.1 ) in the audio out port (1.8) and a capillary air pipe (1.5) connected between the hole (1.8.1 ) and the vent hole (1.2.2).
Acoustic chambers are important for headphones. The main reason for this is that the drivers producing the sound need a distance for the frequencies of the sound during the sound output are divided, so that the sound from a single point can be heard by the eardrum definably. In-ear silicone insulated headphones called standard IEM, the distance between the sound driver and the sound output region is very short, but the other side of the driver is closed. Since the acoustic room in the on-ear headphones, where the highest quality sound is received from the headphones, is not located in the in-ear headphones called IEM, the desired sound quality cannot be achieved in the in-ear headphones. However, on-ear headphones are inefficient for outside usage, as they have a big structure and cause perspiration due to increased temperature in the ear over time. The acoustic chamber headphone (1 ), which combines the ergonomic structure of the in-ear headphones and the sound quality of the on-ear headphones and improves the sound quality while doing so, is also able to achieve higher quality audio output, especially on analog outputs.
The acoustic path (1.1 ) in the acoustic chamber headphone (1 ) of the present invention comprises a unique design as a structure. The acoustic property can be increased by the acoustic path (1.1 ) wood material. However, instead of wood, plastic and similar materials can be used.
The rear cover (1.2), which includes the air outlet (1.2.1 ), covers the acoustic path (1.1 ) from the other region of the audio out port (1.8) and has a distance of 2±0.2 mm between the driver. The closed acoustic path (1.1 ) is vented by the driver air outlet (1.2.1 ) and the capillary air pipe (1.5). The main task of the driver air outlet (1.2.1 ) is to improve the quality of sound by controlling the driver's outgoing air. The drivers on standard in-ear headphones are covered on the non-sound side, in addition, there is little or no space between the headphone wall and the driver. Although some models of this type of IEM headset have small vents, they cannot provide a controlled output and, due to their insufficient size, create an adverse pressure in the headset and adversely affect the sound quality.
The driver air outlet (1.2.1 ) comprises a porous structure. In this way, the pressure of the incoming air decreases in a controlled manner from the surface of the entire driver air outlet (1.2.1 ). The vent (1.2.2), which is located in the region close to the driver air outlet
(1.2.1 ), is connected to the hole (1.8.1 ) via the capillary air pipe (1.5) thereby balancing the in-ear pressure. In the acoustic chamber headphone (1 ) of the present invention, the pressure problem, which is the biggest disadvantage of silicone insulations of the IEM headphones, is overcome with the pressure balancer air path formed via the vent hole
(1.2.2), the capillary air pipe (1.5) and the hole (1.8.1 ), thus the sound quality is not reduced. The driver is located 2-3 mm from the audio out port (1.8). As with standard headphones, the driver is powered by the supplied cable or a rechargeable battery. The driver has the same features as standard headset drivers available on the market.
Although the acoustic path (1.1 ) has a geometrically unique structure, the volume of the user can be increased or decreased relative to the ear size. Depending on the size, the material forming the acoustic path (1.1 ) has a wall thickness of 2-3 mm, providing the isolation required for high-quality sound, while ensuring that the space (1.6) reaches a sufficient size.
The invention is an acoustic chamber headphone (1 ) comprising a driver and an audio cable (1.7) in each headset a rear cover (1.2) with an acoustic path (1.1 ), a driver air outlet
(1.2.1 ), and an air vent (1.2.2) that allows the inside of the ear to communicate with the external environment in each headset; a sound outlet port (1.8) comprising a hole (1.8.1 ) providing a connection, a piece providing an air passageway isolated from the acoustic path
(1.1 ) by bridging said air port (1.2.2) and the opening (1.8.1 ). characterized in that the capillary air tube (1.5) comprises a drive location where the driver is located and a cavity (1.6) surrounded by the acoustic path (1.1 ).
The hole (1.8.1 ), the capillary air tube (1.5) and the vent (1.2.2) are connected to each other to establish the air connection between the ear and the external environment. Here, the capillary tube (1.5) does not adversely affect the sound flow there as it passes through the acoustic pathway (1.1 ) and thus forms an isolated acoustic chamber and airway. The airway obtained by the capillary air tube (1.5), orifice (1.8.1 ) and the orifice (1.2.2) establishes the pressure balance within the ear and does not have a negative effect on the quality of sound. If the ratio of the diameter of the bore (1.8.1 ), the capillary air tube (1.5) and the bore (1.2.2) is greater than the assumed model, it reduces the pressure too much and may cause too much noise from outside. If they are too small they may not be able to reduce the pressure sufficiently.
The acoustic path (1.1 ) is characterized in that the angle between the sound outlet port (1.8) and the driver air outlet (1.2.1 ) at its two ends is 90 ± 15 sahip, having a special geometry similar to a spherical structure with an internal cavity (1.6).
The acoustic path (1.1 ) includes the driver in such a way that it is located in the driver's location within 2-3 mm of the driver air outlet (1.2.1 ). The driver location may be located on the rear cover (1.2) or the acoustic path (1.1 ). This is because the acoustic path (1.1 ) and the tailgate (1.2) form the acoustic chamber as an integral structure.
The capillary air pipe (1.5) is a stainless steel air-permeable tube which makes direct connection between the hole (1.8.1 ) at the audio out port (1.8) and the air hole (1.2.2) on the back cover (1.2). The driver air outlet (1.2.1 ) is located on the other side of the sound output direction of the driver.
In addition, the driver air outlet (1.2.1 ) is a porous surface.
The rear cover (1.2) has the feature that the diameter of the vent hole (1.2.2) on which it holds is equal to the outer diameter of the capillary air pipe (1.5).
The hole (1.8.1 ) has the feature that its diameter is equal to the outer diameter of the capillary air pipe (1.5).
The drive location is of a geometric structure such that the drive fits into the edges of the drive.
The audio out port (1.8) has a cylindrical structure around which silicone rings of various sizes can be inserted into the ear. This is the same as for conventional IEM headphones.
The headset of the present invention is not connected to the on-ear headphones that surround the outer part of the headset, but is used only in headphones called IEM which provide insulation in the ear with a flexible silicone rubber-like structure.
In a different version, the acoustic path (1.1 ) and the rear cover (1.2) can be integrally integrated into a single body. Such an application can be made when plastic material is used. In this type of application, there is a driver air outlet (1.2.1 ) and a vent hole (1.2.2).

Claims

1. An acoustic chamber headphone (1 ) having a driver and an audio cable (1.7) in each headset, comprising: an acoustic path (1.1 ) in each headset; a rear cover (1.2) having a driver air outlet (1.2.1 ) and a vent hole (1.2.2), wherein said rear cover (1.2) covers one side of the acoustic path(1.1 ); an audio out port (1.8) which sends soundwaves into the ear of the user with a hole
(1.8.1 ) wherein said hole (1.8.1 ) connecting the ear of the user to the acoustic path(1.1 ); a capillary air pipe (1.5) wherein said capillary air pipe (1.5) connects the vent hole
(1.2.2) and the hole (1.8.1 ) with an isolated passageway; a driver location wheerein a driver of the acoustic chamber headphone (1 ) driver is located and wherein said driver location is inside the acoustic path(1.1 ) and on the rear cover (1.2) facing the acoustic path (1.1 ); a space (1.6) wherein said space (1.6) is surrounded by the acoustic path (1.1 ).
2. The acoustic path (1.1 ) according to claim 1 , wherein said acoustic path (1.1 ) has a special geometry similar to a spherical structure covering the space (1.6), and having the characteristic that the angle between the audio out port (1.8) and the driver air outlet (1.2.1 ) facing direction is 90 ± 15 °.
3. The acoustic path (1.1 ) according to claim 1 or 2, wherein said acoustic path (1.1 ) comprises the driver so that it is positioned at the driver location, which is at a distance of 2-3 mm from the driver air outlet (1.2.1 ) inside the space (1.6).
4. The capillary air pipe (1.5) according to claim 1 , wherein said capillary air pipe (1.5) has the feature of being a stainless pipe which makes direct connection between the hole (1.8.1 ) at the audio out port (1.8) and the vent hole (1.2.2) at the rear cover
(1.2).
5. The driver air outlet (1.2.1 ) according to claim 1 , wherein the driver is located on the
6
SUBSTITUTE SHEETS (RULE 26) other side of the sound output direction.
6. The driver air outlet (1 .2.1 ) according to claim 1 or 5, wheren said driver air outlet (1.2.1 ) has a porous structure.
7. The rear cover (1 .2) according to claim 1 , wherein the diameter of the vent hole (1.2.2) is equal to the outer diameter of the capillary air tube (1 .5).
8. The hole (1 .8.1 ) according to claim 1 , wherein said hole (1 .8.1 ) has the same diameter of the capillary air pipe’s (1 .5) outer diameter.
9. The driver location according to claim 1 , wherein said driver location has a geometric structure to fit with the driver's edges.
10.The audio out port (1.8) according to claim 1 , wherein said audio out port (1 .8) has a cylindrical structure on which silicone rings of various sizes, which are inserted into the ear, can be located on.
7
SUBSTITUTE SHEETS (RULE 26)
PCT/TR2019/050567 2019-07-11 2019-07-11 In-ear headphone with private acoustic room WO2021006833A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TR2019/050567 WO2021006833A1 (en) 2019-07-11 2019-07-11 In-ear headphone with private acoustic room

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2019/050567 WO2021006833A1 (en) 2019-07-11 2019-07-11 In-ear headphone with private acoustic room

Publications (1)

Publication Number Publication Date
WO2021006833A1 true WO2021006833A1 (en) 2021-01-14

Family

ID=74113787

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2019/050567 WO2021006833A1 (en) 2019-07-11 2019-07-11 In-ear headphone with private acoustic room

Country Status (1)

Country Link
WO (1) WO2021006833A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150382100A1 (en) * 2014-06-27 2015-12-31 Apple Inc. Mass loaded earbud with vent chamber
CN106454591A (en) * 2016-10-19 2017-02-22 歌尔股份有限公司 Earphone
US20170070808A1 (en) * 2012-06-20 2017-03-09 Apple Inc. Earphone having an acoustic tuning mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170070808A1 (en) * 2012-06-20 2017-03-09 Apple Inc. Earphone having an acoustic tuning mechanism
US20150382100A1 (en) * 2014-06-27 2015-12-31 Apple Inc. Mass loaded earbud with vent chamber
CN106454591A (en) * 2016-10-19 2017-02-22 歌尔股份有限公司 Earphone

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