CN110650407A - Multistage tone tuning earphone and audio-visual equipment - Google Patents
Multistage tone tuning earphone and audio-visual equipment Download PDFInfo
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- CN110650407A CN110650407A CN201911027847.8A CN201911027847A CN110650407A CN 110650407 A CN110650407 A CN 110650407A CN 201911027847 A CN201911027847 A CN 201911027847A CN 110650407 A CN110650407 A CN 110650407A
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- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 29
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 29
- 241001330002 Bambuseae Species 0.000 claims abstract description 29
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 29
- 239000011425 bamboo Substances 0.000 claims abstract description 29
- 239000000178 monomer Substances 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000013011 mating Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000000613 ear canal Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
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- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention discloses a multi-stage tuning earphone and audio-visual equipment, and relates to the technical field of earphones. This multistage tuning earphone includes earphone body and tuning cylinder, this internal loudspeaker monomer that is provided with of earphone, loudspeaker monomer separates into back chamber and antechamber with the inner space of earphone body, be provided with the disappointing hole of back chamber with the back chamber intercommunication on the earphone body, the tuning cylinder rotationally sets up on the earphone body, the tuning cylinder is provided with a section of thick bamboo inner chamber, set up the section of thick bamboo wall hole with section of thick bamboo inner chamber intercommunication on the section of thick bamboo wall of tuning cylinder, when the relative earphone body of tuning cylinder rotates to first state, the disappointing hole of back chamber is sealed to the section of thick bamboo wall of tuning cylinder, when the relative earphone body of tuning cylinder rotates to the second state, section of thick bamboo wall hole and the disappointing hole intercommunication. The multi-stage tuning earphone provided by the invention can adjust the high-frequency and low-frequency performances according to the heard sound, thereby improving the listening experience of a user.
Description
Technical Field
The invention relates to the technical field of earphones, in particular to a multi-stage tuning earphone and audio-visual equipment.
Background
The earphone with better low-frequency performance has better bass effect, the earphone with better high-frequency performance has better treble effect.
The earphones on the market are fixed in high-low frequency performance, cannot be adaptively adjusted according to the heard sound in the using process, and the listening experience of a user still needs to be improved.
Disclosure of Invention
The invention aims to provide a multi-stage tuning earphone which can change the high-low frequency performance of the multi-stage tuning earphone to adapt to different sounds.
Another object of the present invention is to provide an audio-visual apparatus capable of changing its high and low frequency performance to accommodate different sounds.
The invention provides a technical scheme that:
the utility model provides a multistage tuning earphone, includes earphone body and tuning barrel, this internal loudspeaker monomer that is provided with of earphone, loudspeaker monomer will the inner space separation of earphone body becomes rear chamber and antechamber, be provided with on the earphone body with the rear chamber of rear chamber intercommunication loses heart the hole, tuning barrel rotationally set up in on the earphone body, tuning barrel is provided with a section of thick bamboo inner chamber, set up on tuning barrel's the section of thick bamboo wall with the section of thick bamboo wall hole of section of thick bamboo inner chamber intercommunication, work as tuning barrel is relative when earphone body rotates to the first state, tuning barrel's section of thick bamboo wall seals the disappointing hole in rear chamber, work as tuning barrel is relative when earphone body rotates to the second state, section of thick bamboo wall hole with the disappointing hole intercommunication in rear chamber.
Further, the tube inner cavity comprises a first tube inner cavity, the tube wall hole comprises a first tube wall hole, the first tube wall hole is communicated with the first tube inner cavity, the earphone body is further provided with an increase cavity and an increase hole communicated with the increase cavity, and when the tuning tube rotates relative to the earphone body to communicate the first tube wall hole with the rear cavity air leakage hole, the first tube wall hole is communicated with the increase cavity.
Furthermore, still be provided with first disappointing hole on the earphone body, increase the appearance chamber and pass through first disappointing hole and external intercommunication.
Further, the barrel inner cavity further comprises a second barrel inner cavity, the barrel wall hole further comprises a second barrel wall hole, and the second barrel wall hole is communicated with the second barrel inner cavity.
Furthermore, a second air release hole is formed in the cylinder wall, and the inner cavity of the second cylinder is communicated with the outside through the second air release hole.
Further, the outer wall of earphone body is concave to be equipped with the mating holes, the drill way in the disappointing hole of back chamber is seted up on the lateral wall of mating holes, the one end of a tuning section of thick bamboo is inserted the mating holes, the drill way in section of thick bamboo wall hole is seted up on the lateral wall of a tuning section of thick bamboo, the lateral wall of a tuning section of thick bamboo with the lateral wall laminating of mating holes.
Further, multistage tuning earphone still includes the tuning carousel, the tuning carousel rotate set up in on the earphone body, run through on the tuning carousel and be provided with the disappointing hole of a plurality of aperture variation in size carousel, the tuning carousel is used for relatively the earphone body rotates to make different apertures the disappointing hole of carousel will ante chamber and external intercommunication.
Further, be provided with on the earphone body with the preceding chamber of ante-chamber intercommunication loses heart the hole, the tuning carousel cover in on the preceding chamber loses heart the hole, the ante-chamber pass through the preceding chamber loses heart the hole with carousel loses heart intercommunication.
Further, the aperture of the front cavity air release hole is larger than that of each turntable air release hole.
The invention also provides audio-visual equipment which comprises the multi-stage tuning earphone, wherein the multi-stage tuning earphone comprises an earphone body and a tuning cylinder, a loudspeaker unit is arranged in the earphone body, the loudspeaker unit divides the internal space of the earphone body into a rear cavity and a front cavity, a rear cavity air leakage hole communicated with the rear cavity is formed in the earphone body, the tuning cylinder is rotatably arranged on the earphone body and is provided with a cylinder inner cavity, a cylinder wall hole communicated with the cylinder inner cavity is formed in the cylinder wall of the tuning cylinder, when the tuning cylinder rotates to a first state relative to the earphone body, the cylinder wall hole of the tuning cylinder seals the rear cavity air leakage hole, and when the tuning cylinder rotates to a second state relative to the earphone body, the cylinder wall hole is communicated with the rear cavity air leakage hole.
Compared with the prior art, the multistage tuning earphone provided by the invention can realize volume adjustment of the rear cavity of the earphone by adjusting the rotation of the tuning cylinder relative to the earphone body, and the larger the rear cavity of the earphone is, the better the low-frequency performance is, the smaller the rear cavity is, the better the high-frequency performance is, so that the volume adjustment of the rear cavity of the earphone is realized, and the high-frequency and low-frequency performance of the earphone is realized. When the heard sound is mainly high-pitched, the tuning cylinder is adjusted to rotate to a first state relative to the earphone body, the rear cavity is sealed, and the earphone has better high-frequency performance; when the sound of listening mainly is the bass, adjust the relative earphone body of tuning cylinder and rotate to the second state, the rear chamber communicates with a section of thick bamboo inner chamber, is equivalent to the rear chamber volume increase of earphone, and the earphone has better low frequency performance this moment. Therefore, the multistage tuning earphone provided by the invention has the beneficial effects that: the high-low frequency performance can be adjusted according to the heard sound, and therefore the user listening experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a cross-sectional view of a multi-stage tuned earphone according to a first embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of the tuning cylinder of FIG. 1;
FIG. 3 is a cross-sectional view of a tuning earphone illustrating simultaneous communication of the first barrel wall aperture of the tuning barrel of FIG. 1 with the volume-increasing aperture and the rear cavity vent aperture;
FIG. 4 is a cross-sectional view of the tuning earphone of FIG. 1 with the second barrel wall of the tuning barrel in communication with the rear cavity vent hole;
fig. 5 is a schematic structural diagram of the tuning dial in fig. 1.
Icon: 100-multi-stage tuning earphones; 110-a headset body; 111-the posterior chamber; 1111-rear cavity air release hole; 113-anterior chamber; 1131-front cavity air release hole; 1133, sound outlet; 115-increasing volume; 1151-a compatiblizing aperture; 1153-a first venting hole; 117-mating holes; 120-horn unit; 130-tuning barrel; 131-a first barrel lumen; 1311-first cartridge wall aperture; 133-second cartridge chamber; 1331-second cartridge wall aperture; 1333-a second air escape aperture; 150-tuning rotary table; 151-rotating disk air release hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
First embodiment
Referring to fig. 1, the multi-level tuning earphone 100 provided in this embodiment can adjust high and low frequency performance according to a sound heard, so as to improve listening experience of a user.
The multistage tuning headset 100 provided in this embodiment includes a headset body 110, a tuning barrel 130, and a tuning dial 150. The earphone body 110 is provided with a speaker unit 120, the speaker unit 120 divides the inner space of the earphone body 110 into a rear cavity 111 and a front cavity 113, and the earphone body 110 is further provided with a sound outlet 1133 communicated with the front cavity 113. The tuning cylinder 130 is disposed on the rear cover of the earphone body 110 for multi-level adjusting the volume of the rear cavity 111, thereby realizing multi-level adjusting of high and low frequency performance of the earphone and enabling the earphone to adapt to different sounds. The tuning dial 150 is disposed on the front cover of the earphone body 110, and is used for balancing the sound pressure of the ear canal by changing the air leakage aperture of the front cavity 113, and relieving hearing fatigue.
The outer wall of the earphone body 110 is concavely provided with a matching hole 117, and the side wall of the matching hole 117 is provided with a rear cavity air release hole 1111 communicated with the rear cavity 111. The matching hole 117 is inserted to tuning barrel 130's one end, and can be at the internal rotation of matching hole 117, be provided with the section of thick bamboo inner chamber that a plurality of volumes are different in tuning barrel 130, set up a plurality of section of thick bamboo wall holes that correspond the intercommunication with a plurality of section of thick bamboo inner chambers on tuning barrel 130's the section of thick bamboo wall, when tuning barrel 130 rotates to first state relative earphone body 110, the section of thick bamboo wall of tuning barrel 130 seals the disappointing hole 1111 of back chamber, when tuning barrel 130 rotates to the second state relative earphone body 110, section of thick bamboo wall hole communicates with the disappointing hole 1111 of back chamber.
When the tuning cylinder 130 rotates in the fitting hole 117 with respect to the earphone body 110, the plurality of different cylinder wall holes are selectively communicated with the rear cavity release hole 1111, so as to communicate the rear cavity 111 with a plurality of cylinder inner cavities having different volumes, that is, in the present embodiment, the second state includes a plurality of states of changing the volume of the rear cavity 111. Therefore, the volume of the rear cavity 111 is adjusted in multiple stages, and the high-low frequency performance of the multi-stage tuning earphone 100 is adjusted.
Referring to fig. 1 and fig. 2, in the present embodiment, the inner cylinder cavity of the tuning cylinder 130 includes a first cylinder inner cavity 131 and a second cylinder inner cavity 133, the cylinder wall holes include a first cylinder wall hole 1311 and a second cylinder wall hole 1331, the first cylinder wall hole 1311 is communicated with the first cylinder inner cavity 131, the second cylinder wall hole 1331 is correspondingly communicated with the second cylinder inner cavity 133, the tuning cylinder 130 is further provided with a second air release hole 1333 for communicating the second cylinder inner cavity 133 with the outside, the volume of the first cylinder inner cavity 131 is greater than the volume of the second cylinder inner cavity 133, the circle center included angle of the positions of the first cylinder wall hole 1311 and the second cylinder wall hole 1331 on the cylinder wall is 90 °, that is, when the first cylinder wall hole 1311 is communicated with the rear cavity air release hole 1111, the second cylinder wall hole 1331 can be communicated with the rear cavity air release hole 1111 by rotating 90 ° toward the direction of the second cylinder wall hole 1331.
Fig. 1 is a cross-sectional view of the multi-stage tuning headset 100 when the tuning barrel 130 is rotated to a first state relative to the headset body 110. The earphone body 110 is further provided with a volume increasing cavity 115, and a volume increasing hole 1151 and a first air release hole 1153 which are respectively communicated with the volume increasing cavity 115, and the first air release hole 1153 is communicated with the outside. In this embodiment, the orifice of the volume-increasing hole 1151 is also opened on the sidewall of the mating hole 117, at this time, the wall of the tuning cylinder 130 simultaneously seals the rear cavity air release hole 1111 and the volume-increasing hole 1151, and the rear cavity air release hole 1111 is sealed.
At this moment, the volume of earphone back cavity is only the volume of back cavity 111, and when loudspeaker monomer 120 vibrating diaphragm vibrated, the air current of back cavity 111 only can be in the activity of back cavity 111, and the volume of earphone back cavity is minimum under this state, and multistage tuning earphone 100's high frequency performance is stronger, and the low frequency performance is more weak, and bass effect is relatively poor promptly, is applicable to the high pitch. That is, when the sound is mainly high pitched, the tuning cylinder 130 is adjusted to rotate to this state.
The relative opening positions of the capacity increasing hole 1151 and the rear cavity air release hole 1111 correspond to the first cylinder wall hole 1311, and when the tuning cylinder 130 rotates relative to the earphone body 110 until the first cylinder wall hole 1311 is communicated with the rear cavity air release hole 1111, the first cylinder wall hole 1311 is simultaneously communicated with the capacity increasing hole 1151.
Fig. 3 is a sectional view of the multistage tuning headphone 100 when the tuning cylinder 130 is rotated to a state in which the first cylinder wall hole 1311 is simultaneously communicated with the capacity-increasing hole 1151 and the rear chamber relief hole 1111 in the second state with respect to the headphone body 110. Referring to fig. 3, at this time, the first cylinder wall hole 1311 is simultaneously communicated with the volume-increasing hole 1151 and the rear cavity air-releasing hole 1111, at this time, the rear cavity 111 is communicated with the first cylinder inner cavity 131 and the volume-increasing cavity 115, and at this time, the volume of the rear cavity of the earphone is the sum of the volumes of the three.
At this time, the multistage toning headset 100 has better low-frequency performance and poorer high-frequency performance, and is suitable for listening to bass, that is, when the sound is mainly heard by bass, the toning barrel 130 is adjusted to rotate to this state.
Fig. 4 is a cross-sectional view of the multi-stage tuning earphone 100 when the tuning cylinder 130 is rotated to the second state relative to the earphone body 110, and the second cylinder wall hole 1331 is communicated with the rear cavity air release hole 1111, and the capacity increasing hole 1151 is closed by the cylinder wall. Referring to fig. 4, at this time, the back cavity 111 is communicated with the second barrel inner cavity 133, and the volume of the back cavity of the earphone is substantially the sum of the two volumes.
At this time, the multi-stage tuning earphone 100 has a balanced high-frequency performance and a balanced low-frequency performance, and is suitable for listening to the middle voice, that is, when the sound is mainly the middle voice, the tuning barrel 130 is adjusted to rotate to this state.
In practical applications, by rotating the tuning cylinder 130, the high-low frequency performance of the multi-stage tuning earphone 100 provided by the present embodiment can be changed to accommodate bass, midrange and treble, respectively. Namely, when facing different sound objects, the user can obtain better listening experience.
Please refer to fig. 1 and 5, a plurality of turntable air release holes 151 with different diameters are formed in the tuning turntable 150 in a penetrating manner, the tuning turntable 150 is rotatably disposed on the earphone body 110, and the turntable air release holes 151 with different diameters can be communicated with the front cavity 113 by rotating the tuning turntable 150, so that pressure release with different degrees can be realized.
The earphone body 110 is provided with a front cavity air release hole 1131 communicated with the front cavity 113, and the aperture of the front cavity air release hole 1131 is larger than that of each turntable air release hole 151. The tuning dial 150 covers the front cavity air release hole 1131, and the front cavity 113 is communicated with the dial air release hole 151 through the front cavity air release hole 1131.
In practical applications, a user adjusts the tuning cylinder 130 to change the high-frequency and low-frequency performance of the multi-stage tuning earphone 100 provided by the present embodiment, so as to adapt to different sound objects, and obtain a better listening experience. And the sound pressure output by the multistage tuning earphone 100 is changed by adjusting the tuning dial 150, so that the hearing fatigue of the user is relieved while the high-frequency and low-frequency performance is further adjusted.
Therefore, the multistage tuning headset 100 provided by the embodiment has stronger applicability and better user experience.
Second embodiment
The present embodiment provides an audio-visual device including the multi-stage tuned headphone 100 provided in the first embodiment, which is capable of adjusting high and low frequency performance of the multi-stage tuned headphone 100 according to a listening object, thereby obtaining a better listening experience.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a multistage tuning earphone, its characterized in that, includes earphone body and tuning barrel, this internal loudspeaker monomer that is provided with of earphone, loudspeaker monomer will the inner space of earphone body separates into back chamber and antechamber, be provided with on the earphone body with the disappointing hole of back chamber intercommunication, the tuning barrel rotationally set up in on the earphone body, the tuning barrel is provided with a section of thick bamboo inner chamber, set up on the section of thick bamboo wall of tuning barrel with the section of thick bamboo wall hole of section of thick bamboo inner chamber intercommunication, work as the tuning barrel is relative when the earphone body rotates to first state, the section of thick bamboo wall of tuning barrel seals the disappointing hole of back chamber, work as the tuning barrel is relative when the earphone body rotates to the second state, section of thick bamboo wall hole with the disappointing hole intercommunication of back chamber.
2. The multi-stage tuning earphone according to claim 1, wherein the barrel inner cavity comprises a first barrel inner cavity, the barrel wall hole comprises a first barrel wall hole, the first barrel wall hole is communicated with the first barrel inner cavity, the earphone body is further provided with a volume increasing cavity and a volume increasing hole communicated with the volume increasing cavity, and when the tuning barrel rotates relative to the earphone body until the first barrel wall hole is communicated with the rear cavity air release hole, the first barrel wall hole is communicated with the volume increasing hole.
3. The multi-stage tuning earphone according to claim 2, wherein a first air-release hole is further formed in the earphone body, and the volume-increasing cavity is communicated with the outside through the first air-release hole.
4. The multi-stage tuning headset of claim 2, wherein the barrel lumen further comprises a second barrel lumen, the barrel wall aperture further comprising a second barrel wall aperture, the second barrel wall aperture in communication with the second barrel lumen.
5. The multi-stage tuning earphone according to claim 4, wherein the wall of the barrel is further provided with a second air release hole, and the inner cavity of the second barrel is communicated with the outside through the second air release hole.
6. The multi-stage tuning earphone according to claim 1, wherein the outer wall of the earphone body is concavely provided with a matching hole, the orifice of the rear cavity air release hole is arranged on the side wall of the matching hole, one end of the tuning cylinder is inserted into the matching hole, the orifice of the cylinder wall hole is arranged on the side wall of the tuning cylinder, and the side wall of the tuning cylinder is attached to the side wall of the matching hole.
7. The multi-stage tuning earphone according to claim 1, further comprising a tuning turntable, wherein the tuning turntable is rotatably arranged on the earphone body, a plurality of turntable air release holes with different hole diameters are formed in the tuning turntable in a penetrating mode, and the tuning turntable is used for rotating relative to the earphone body so that the front cavity is communicated with the outside through the turntable air release holes with different hole diameters.
8. The multi-stage tuning earphone according to claim 7, wherein a front cavity air release hole communicated with the front cavity is formed in the earphone body, the tuning turntable covers the front cavity air release hole, and the front cavity is communicated with the turntable air release hole through the front cavity air release hole.
9. The multi-level tuning earphone according to claim 8, wherein the aperture of the front cavity air release hole is larger than that of each turntable air release hole.
10. An audio-visual apparatus comprising a multi-stage tuned headphone according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027847.8A CN110650407B (en) | 2019-10-25 | 2019-10-25 | Multistage tuning earphone and audio-visual equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027847.8A CN110650407B (en) | 2019-10-25 | 2019-10-25 | Multistage tuning earphone and audio-visual equipment |
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| CN110650407A true CN110650407A (en) | 2020-01-03 |
| CN110650407B CN110650407B (en) | 2024-08-27 |
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| CN201911027847.8A Active CN110650407B (en) | 2019-10-25 | 2019-10-25 | Multistage tuning earphone and audio-visual equipment |
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| WO2022213457A1 (en) * | 2021-04-09 | 2022-10-13 | 深圳市韶音科技有限公司 | Acoustic device |
| WO2023097794A1 (en) * | 2021-11-30 | 2023-06-08 | 歌尔股份有限公司 | Wrist-worn device, and air pressure adjustment method, apparatus and system therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022213457A1 (en) * | 2021-04-09 | 2022-10-13 | 深圳市韶音科技有限公司 | Acoustic device |
| TWI832198B (en) * | 2021-04-09 | 2024-02-11 | 大陸商深圳市韶音科技有限公司 | Acoustic device |
| WO2023097794A1 (en) * | 2021-11-30 | 2023-06-08 | 歌尔股份有限公司 | Wrist-worn device, and air pressure adjustment method, apparatus and system therefor |
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| CN110650407B (en) | 2024-08-27 |
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