CN105263081B - It is a kind of that there is the earplug arrangement for suppressing feedback function - Google Patents
It is a kind of that there is the earplug arrangement for suppressing feedback function Download PDFInfo
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- CN105263081B CN105263081B CN201510778631.0A CN201510778631A CN105263081B CN 105263081 B CN105263081 B CN 105263081B CN 201510778631 A CN201510778631 A CN 201510778631A CN 105263081 B CN105263081 B CN 105263081B
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- loudspeaker
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- earplug
- mike
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- 229910052742 iron Inorganic materials 0.000 claims description 3
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- 230000009467 reduction Effects 0.000 description 19
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- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention provides a kind of earplug arrangement for having and suppressing feedback function, including, hollow earplug housing；The loudspeaker one being arranged in earplug housing, the sound outlet hole of loudspeaker one go out sound end towards earplug arrangement；The Mike being arranged in earplug housing, Mike are equipped with the pickup hole for being used for receiving the sound that duct transmits；The loudspeaker two being arranged in earplug housing, loudspeaker two export sound to Mike.Apply the technical scheme of the present invention, the feedback sound that the pickup hole pickup loudspeaker one of Mike are produced via duct, the another side of Mike picks up the output sound of ad hoc loudspeaker two at the same time, causes feedback sound and the sound wave of output two sound of sound to cancel out each other, so as to inhibit the generation of feedback phenomenon.
Description
Technical field
The present invention relates to mobile or fixed telecommunication terminal external audio frequency input/output device (headset), it is particularly
Be related to it is a kind of using earplug internal structure and the characteristic of used electro-acoustic component with effectively suppress the earplug of sound feedback phenomenon dress
Put.
Background technology
Noise reduction headset currently on the market is varied, can be divided into according to principle of noise reduction division following two：
A. passive noise reducing type：Ear is mainly surrounded by using acoustic material and forms enclosure space or using silica gel earplugs
Completely cut off duct Deng acoustic material to stop outside noise.Since noise is not handled by Dolby circuit chip, can only generally hinder
Every voice and low-frequency noise.This kind of headset is commonly provided with the cover thickeied, is mostly wear-type, volume is big using mechanical noise reduction
It is and heavy.
B. active noise reduction type：Ambient noise is obtained by Mike, is produced by active noise reduction chip equal with ambient noise
Anti-phase sound wave broadcasts together with the sound to be broadcasted in loudspeaker, so that noise be neutralized, realizes noise reduction.This headset needs
Equipped with complicated active noise reduction circuit and need the driving of power supply.
When headset is applied to fixed or communication terminal (such as mobile phone), sound conditions become increasingly complex.This
When, headset not only needs to undertake the task of playing sound, it is also necessary to undertakes the task for the call sound that collection user sends.
A kind of existing active noise reduction techniques applied to communicating terminal, it is similar with active noise reduction headset, drop of taking the initiative
Make an uproar chip controls, use the diamylose gram sampling for being arranged on communicating terminal diverse location to carry out noise reduction.Mike A obtain environmental noise and
The call sound of people, Mike B only obtain environmental noise.The environmental noise part obtained for Mike B, noise reduction chip will be with noise
Frequency is identical with amplitude, and the sine wave of phase difference 180 degree is stacked the sound for adding to Mike A acquisitions, it is possible to which offset noise, is adopted
Collect more pure call sound.And the major defect of the technology is noise reduction unobvious.Mike A and Mike B are usually difficult
Equally to gather call sound or noise respectively as desired, but all collect the call mixed in together being difficult to differentiate between and make an uproar
Mixture of tones sound so that noise reduction is undesirable, and even more two Mikes only collect particularly when the intensity of noise is larger
Huge environmental noise, call sound are covered so that noise reduction chip can not effectively work.
Although existing part communication terminal equipment has the function of active noise reduction, its noise reduction capability reaches far away people's
It is expected.Thus, as a further improvement, occur it is a kind of Mike and loudspeaker are built in earphone earplug at the same time can carry out it is double
The earplug arrangement of work communication.Its earplug be furnished with the sizable earplug set of duct, and earplug housing in be equipped with damping material, when
Duct can be effectively sealed after filling in duct, isolated environment noise enters duct, and the Mike built in earplug can be in quiet duct
Pick up the sound of speaking that duct is passed to from oral cavity.Belong to passive noise reducing type on this earplug arrangement type of service, but noise reduction is former
Reason but belongs to active noise reduction type.In addition, when communicating terminal is inserted into earphone in use, just shielding the decrease of noise functions of itself, at this time
This noise reduction earplug arrangement can be used as external denoising device.
But loudspeaker and Mike are integrated in slight earplug and are put into duct in use, since loudspeaker are same with Mike
Small space in duct, can cause voice signal to form the sound of feedback, i.e. loudspeaker outflow in duplex communication system
Into after duct, have partial sound and be fed into again into the pickup hole of Mike, this creates the terminal feedback phenomenon.This time
Interference sound can be formed by awarding phenomenon, and the collection to sound of speaking interferes, and when horn volume is larger, or even can be compared seriously
Influence communication effect.
The present invention is a kind of earplug arrangement for predominantly suppressing feedback phenomenon and designing.
The content of the invention
The present invention is intended to provide a kind of have the earplug arrangement for suppressing feedback function, it is logical to solve duplex of the prior art
Interrogate earplug there are feedback phenomenon, the problem of disturbing the collection of sound of speaking, influence communication effect.
To achieve these goals, the present invention provides a kind of earplug arrangement for having and suppressing feedback function, including, it is hollow
Earplug housing；The loudspeaker one being arranged in earplug housing, the sound outlet hole of loudspeaker one go out sound end towards earplug arrangement；It is arranged on
Mike in earplug housing, Mike are equipped with the pickup hole for being used for receiving the sound that duct transmits；The loudspeaker being arranged in earplug housing
Two, loudspeaker two to Mike export sound.
Further, earplug enclosure interior filling damping material.
Further, there is cavity in damping material, Mike is equipped with the rear pickup hole for the sound for being used to receive loudspeaker two,
Pickup hole and the sound face that goes out of loudspeaker two are in cavity together afterwards.
Further, loudspeaker two are arranged to be integrated in the rear portion of loudspeaker one and back-to-back arrangement.
Further, sound is transmitted to duct by loudspeaker one by sound channel A.
Further, the pickup hole of the sound transmitted for receiving duct by sound channel B pick up duct in by sky
Gas vibration is transmitted through carrying out sound of speaking.
Further, the output volume of loudspeaker two is the 16% of loudspeaker one, and loudspeaker two export at the same time with loudspeaker one.
Further, loudspeaker one and loudspeaker two are moving-iron type unit.
Further, Mike is differential Mike.
Further, the pickup hole of the sound transmitted for receiving duct is arranged to one or several.
Apply the technical scheme of the present invention, the feedback sound that loudspeaker one are produced via duct is picked up in the pickup hole of Mike, at the same time
The another side of Mike picks up the output sound of ad hoc loudspeaker two, causes feedback sound and the sound wave of output two sound of sound mutually to support
Disappear, so as to inhibit the generation of feedback phenomenon.
Brief description of the drawings
The accompanying drawings which form a part of this application are used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows a kind of structure diagram with the earplug arrangement for suppressing feedback function of the present invention.
Description of reference numerals：10- shells；20- damping materials；30- Mikes；Pickup hole after 31-；Pickup hole before 32-；41-
Loudspeaker one；42- loudspeaker two；50- earplug sets；A- sound channels A；B- sound channels B.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.Below with reference to the accompanying drawings and the present invention will be described in detail in conjunction with the embodiments.
The specific embodiment of the present invention is referring to shown in attached drawing 1, after people's one's voice in speech is passed to duct, by air
Vibration propagation enters the preceding pickup hole 32 of Mike 30 by sound channel B, and the sound of pickup is passed by wired or wireless way
Send to the communicating terminal of connection.
After the sound that loudspeaker 1 are spread out of enters duct by sound channel A, have partial sound and (measured about through experiment
16%) to enter the preceding pickup hole 32 of Mike 30 by sound channel B, this creates the terminal feedback phenomenon.
The present invention sets the loudspeaker for obtaining voice signal from communicating terminal at the same time with loudspeaker one to eliminate feedback phenomenon
Two, the voice signal of acquisition is exported, and about 16% that output volume is loudspeaker one, Mike is transmitted to by the cavity after Mike
30 rear pickup hole 31.The identical frequency and the sound of volume that the front and rear pickup hole of differential Mike is picked up at the same time are mutually cancelled
, pressure difference zero, does not produce voice signal, therefore also eliminates the need for feedback phenomenon.
The device of the invention has a hollow earplug housing 10, has component loudspeaker 1, loudspeaker 2 42 and wheat in housing
Grams 30, sound channel A and sound channel B, 30 rear cavity of Mike, its complementary space are filled by damping material 20.
Differential 30 front portion of Mike has a preceding pickup hole 32, rear portion to have one or several rear pickup holes 31, preceding pickup
Hole 32 goes out sound end towards earplug.
Loudspeaker 1 and loudspeaker 2 42 are moving-iron type unit, respectively there is a sound outlet hole.Loudspeaker 1 in the lower part of Mike 30,
Sound outlet hole goes out sound end towards earplug.
In order to which line is convenient and easy to assembly, loudspeaker 2 42 are arranged to be integrated in the rear portion of loudspeaker 1 and back-to-back row
Row, sound outlet hole go out the reverse side at sound end towards earplug.In this way, two loudspeaker can share same set of wiring, and can make in groups
Component, one is merged into by the similar pad on two loudspeaker, and is assembled jointly so that be easy in process of production welding and
Assembling, can improve production efficiency, reduce production cost, while also can effectively improve product qualification rate.
The audio signal obtained from the communicating terminal of wired or wireless way connection is exported by loudspeaker 1, by sound
Passage A arrival earplugs go out sound end (earplug set 50), are transmitted in duct.
The audio signal obtained from the communicating terminal of wired or wireless way connection is exported by loudspeaker 2 42, output volume
For about the 16% of loudspeaker 1, if by the small-sized cavity reserved in damping material 20 can transmit one behind Mike 30 or
After dry in pickup hole 31.
After people's one's voice in speech is passed to duct, the preceding pickup hole 32 of Mike 30 is entered by sound channel B, then by having
Line or wireless mode connecting communication terminal send out the sound of pickup.
Controlled by output circuit, the output volume for controlling loudspeaker two is about the 16% of loudspeaker one, and is exported at the same time；By pressure difference
The feedback sound of the output generation of loudspeaker one and the output sound of loudspeaker two are picked up in the front and rear pickup hole of formula Mike at the same time, due to volume phase
Together, the sound wave of two sound is cancelled out each other caused by, so as to inhibit the generation of feedback phenomenon.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of have the earplug arrangement for suppressing feedback function, it is characterised in that including,
Hollow earplug housing (10)；
The loudspeaker one (41) being arranged in the earplug housing (10), the sound outlet holes of the loudspeaker one (41) is towards earplug arrangement
Go out sound end, for exporting the audio signal obtained from communicating terminal；
The Mike (30) being arranged in the earplug housing (10), the Mike (30), which is equipped with, to be used to receive the sound that duct transmits
Pickup hole；
The loudspeaker two (42) being arranged in the earplug housing (10), the loudspeaker two (42) and the loudspeaker one (41) and meanwhile from
The communicating terminal obtains the audio signal, and with the loudspeaker one (41) while exporting sound, passes through the Mike (30)
Cavity afterwards is transmitted to the Mike (30).
2. according to claim 1 have the earplug arrangement for suppressing feedback function, it is characterised in that the earplug housing
(10) internal filling damping material (20).
3. according to claim 2 have the earplug arrangement for suppressing feedback function, it is characterised in that in the damping material
(20) there is the cavity, the Mike (30) is equipped with the rear pickup hole for the sound for being used to receive the loudspeaker two (42), institute in
State rear pickup hole and the sound face that goes out of the loudspeaker two (42) and be in the cavity together.
4. there is the earplug arrangement for suppressing feedback function according to claim 1 or 3, it is characterised in that the loudspeaker two
(42) it is arranged to be integrated in the rear portion of the loudspeaker one (41) and back-to-back arrangement.
5. according to claim 1 have the earplug arrangement for suppressing feedback function, it is characterised in that the loudspeaker one (41)
Sound is transmitted to duct by sound channel A.
6. according to claim 1 have the earplug arrangement for suppressing feedback function, it is characterised in that the Mike (30) is used
Pickup hole is entered by sound channel B in pickup, the sound of speaking propagated by the air vibration in duct transmitted from duct.
7. it is according to claim 1 have suppress feedback function earplug arrangement, it is characterised in that loudspeaker two (42) it is defeated
Go out 16% that volume is loudspeaker one (41).
8. according to claim 1 have the earplug arrangement for suppressing feedback function, it is characterised in that loudspeaker one (41) and loudspeaker
Two (42) are moving-iron type unit.
9. according to claim 1 have the earplug arrangement for suppressing feedback function, it is characterised in that Mike (30) is pressure difference
Formula Mike.
10. according to claim 3 have the earplug arrangement for suppressing feedback function, it is characterised in that described to be used to receive
The rear pickup hole of the sound of the loudspeaker two (42) is arranged to one or several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778631.0A CN105263081B (en) | 2015-11-16 | 2015-11-16 | It is a kind of that there is the earplug arrangement for suppressing feedback function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778631.0A CN105263081B (en) | 2015-11-16 | 2015-11-16 | It is a kind of that there is the earplug arrangement for suppressing feedback function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105263081A CN105263081A (en) | 2016-01-20 |
| CN105263081B true CN105263081B (en) | 2018-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510778631.0A Active CN105263081B (en) | 2015-11-16 | 2015-11-16 | It is a kind of that there is the earplug arrangement for suppressing feedback function |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106658265B (en) * | 2017-02-14 | 2023-09-12 | 歌尔股份有限公司 | Noise reduction earphone and electronic equipment |
| CN109982185B (en) * | 2017-12-27 | 2024-05-28 | 上海安录宇高数据技术有限公司 | Double-side double-microphone head-wearing noise-reducing headset |
| GB2584535B (en) * | 2019-04-02 | 2021-12-01 | Tymphany Acoustic Tech Huizhou Co Ltd | In-ear headphone device with active noise control |
| CN115914913A (en) * | 2021-09-30 | 2023-04-04 | 华为技术有限公司 | Sound output device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011061483A2 (en) * | 2009-11-23 | 2011-05-26 | Incus Laboratories Limited | Production of ambient noise-cancelling earphones |
| CN202035121U (en) * | 2010-12-27 | 2011-11-09 | 深圳市奥尼电子工业有限公司 | Handset with built-in microphone |
| CN103179295A (en) * | 2011-12-26 | 2013-06-26 | 沈阳晨讯希姆通科技有限公司 | Mobile terminal capable of removing echo and echo removing method thereof |
| CN104602155A (en) * | 2015-01-14 | 2015-05-06 | 中山市天键电声有限公司 | Wireless noise reduction earphone based on intelligent mobile terminal |
| CN205081942U (en) * | 2015-11-16 | 2016-03-09 | 北京祥雍智杰科技有限公司 | Earplug device with restrain back coupling function |
-
2015
- 2015-11-16 CN CN201510778631.0A patent/CN105263081B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011061483A2 (en) * | 2009-11-23 | 2011-05-26 | Incus Laboratories Limited | Production of ambient noise-cancelling earphones |
| CN202035121U (en) * | 2010-12-27 | 2011-11-09 | 深圳市奥尼电子工业有限公司 | Handset with built-in microphone |
| CN103179295A (en) * | 2011-12-26 | 2013-06-26 | 沈阳晨讯希姆通科技有限公司 | Mobile terminal capable of removing echo and echo removing method thereof |
| CN104602155A (en) * | 2015-01-14 | 2015-05-06 | 中山市天键电声有限公司 | Wireless noise reduction earphone based on intelligent mobile terminal |
| CN205081942U (en) * | 2015-11-16 | 2016-03-09 | 北京祥雍智杰科技有限公司 | Earplug device with restrain back coupling function |
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| Publication number | Publication date |
|---|---|
| CN105263081A (en) | 2016-01-20 |
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Effective date of registration: 20210721 Address after: 100095 building 3, Linshan Linyu Second District, Lengquan Xishan, Haidian District, Beijing Patentee after: Zhao Qiang Address before: Room 712-8, building D, entrepreneurship Park, No. 2, Shangdi Information Road, Haidian District, Beijing 100085 Patentee before: BEIJING XIANGYONG ZHIJIE TECHNOLOGY Co.,Ltd. |