CN204795532U - Earphone of making an uproar falls in initiative - Google Patents
Earphone of making an uproar falls in initiative Download PDFInfo
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- CN204795532U CN204795532U CN201520549080.6U CN201520549080U CN204795532U CN 204795532 U CN204795532 U CN 204795532U CN 201520549080 U CN201520549080 U CN 201520549080U CN 204795532 U CN204795532 U CN 204795532U
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- earphone
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Abstract
The utility model relates to an earphone of making an uproar falls in initiative, including earphone main part and first earphone control box, the earphone main part includes that shell and the loudspeaker and the noise that set up in the shell listen the microphone, the shell is equipped with the first metal mesh that constitutes first electric capacity with the earth including the protecgulum and the hou gai that interosculate on the protecgulum, the inside of first earphone control box is equipped with a PCBA board, is equipped with first appearance value detection circuitry, controller on the PCBA board and falls the circuit of making an uproar, the noise is listened the microphone and is fallen the circuit connection that makes an uproar, and first appearance value detection circuitry detects the appearance value of first electric capacity and exports the controller to, and closed signals is opened to falling the circuit of making an uproar to output after the change of the appearance value of the first electric capacity of controller calculation. The utility model discloses an earphone of making an uproar falls in initiative can open automatically or close and fall the function of making an uproar.
Description
Technical field
The utility model relates to electroacoustic switch technology, more specifically, relates to a kind of active noise reduction earphone.
Background technology
Active noise reduction earphone be arrange in earphone detecting noise microphone and in earphone line control or earphone, add noise reduction process circuit, produce the anti-phase sound wave equal with noise by noise reduction process circuit, thus neutralization, counteracting ambient noise reach the effect of active noise reduction.Existing active noise reduction earphone needs to configure rechargeable battery, for Dolby circuit arranges artificial hand switch, intelligent not.
Utility model content
The purpose of this utility model is to provide a kind of technical scheme of the decrease of noise functions for automatic opening/closing active noise reduction earphone.
According to an aspect of the present utility model, provide a kind of active noise reduction earphone, comprise headset main body and the first earphone control box; Described headset main body comprises shell and the loudspeaker be arranged in shell and noise detecting microphone; Described shell comprises the protecgulum and bonnet that are combined with each other, and described protecgulum is provided with and greatly forms the first wire netting of the first electric capacity; The inside of described first earphone control box is provided with the first PCBA board, and described first PCBA board is provided with the first capacitance testing circuit, controller and Dolby circuit; Described noise detecting microphone is connected with described Dolby circuit, described first capacitance testing circuit detects the capacitance of described first electric capacity and exports controller to, and described controller exports On/Off signal to described Dolby circuit after calculating the change of the capacitance of described first electric capacity.
Preferably, described bonnet is provided with and greatly forms the second wire netting of the second electric capacity; Described first PCBA board is also provided with the second capacitance testing circuit; Described second capacitance testing circuit detects the capacitance of described second electric capacity and exports controller to, and described controller exports On/Off signal to described Dolby circuit after calculating the change of the capacitance of described second electric capacity.
Preferably, described controller is following arbitrary: single-chip microcomputer, PLC module, FPGA module.
Preferably, described active noise reduction earphone also comprises USB headset plug, and one end of described first earphone control box is connected with headset main body by earphone cord, and the other end is connected with described USB headset plug by earphone cord.
Preferably, described first PCBA board is also provided with the voltage stabilizing circuit be connected with Dolby circuit, the VBUS pin of described USB plug is connected with described voltage stabilizing circuit.
Preferably, described voltage stabilizing circuit is low-dropout linear voltage-regulating circuit.
Preferably, described active noise reduction earphone also comprises speech microphone; Described first PCBA board is also provided with audio coding decoding chip, the digital audio and video signals of described USB plug transmission is converted to simulated audio signal via described audio coding decoding chip and exports described loudspeaker to, and the analog voice signal of described speech microphone pickup is converted to audio digital signals via described audio coding decoding chip and exports via described USB plug.
Preferably, described headset main body comprises left ear headset main body and auris dextra headset main body, the second earphone control box is also provided with between one of described left ear headset main body or auris dextra headset main body and described first earphone control box, the inside of described second earphone control box is provided with the second PCBA board, the box body of described second earphone control box is provided with the volume increment key, the volume-down keys that are connected with the second PCBA board respectively and answers/pause button, and described speech microphone is arranged in described second PCBA board.
Preferably, described noise detecting microphone is arranged in the rear operatic tunes of headset main body.
Preferably, described active noise reduction earphone is non-built-in earplug.
Active noise reduction earphone of the present utility model arranges wire netting and forms electric capacity on earphone protecgulum, when user's wear headphones, wire netting and contact human skin cause electric capacity to change, otherwise, when user takes off earphone from ear, electric capacity also can change, and controller automatically opens according to the change of electric capacity or cuts out the decrease of noise functions of earphone.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present utility model, further feature of the present utility model and advantage thereof will become clear.
Accompanying drawing explanation
What form a part for specification drawings describes embodiment of the present utility model, and together with the description for explaining principle of the present utility model.
Fig. 1 is the circuit block diagram of the utility model active noise reduction earphone control noises circuit On/Off.
Fig. 2 is the front schematic view of the utility model active noise reduction earphone.
Fig. 3 is the schematic rear view of the utility model active noise reduction earphone.
100-first electric capacity, 200-second electric capacity, 300-first capacitance testing circuit, 400-second capacitance testing circuit, 500 controllers, 600-Dolby circuit; 1-USB plug, 2-first earphone control box 2,3-second earphone control box, 4-headset main body; 5-second wire netting, 9-first wire netting, 6-earphone cord, 7-first PCBA board, 8-second PCBA board, 10-first control box upper cover, 11-first control box lower cover, 12-second control box upper cover, 13-second control box lower cover, 17-speech microphone.
Embodiment
Various exemplary embodiment of the present utility model is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit scope of the present utility model.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the utility model and application or use.
The technology and equipment known for person of ordinary skill in the relevant may not discuss in detail, but in the appropriate case, described technology and equipment should be regarded as a part for specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Introducing the embodiment of the utility model active noise reduction earphone with reference to figure 1-3, comprising USB plug 1, first earphone control box 2, second earphone control box 3, two headset main body 4 for connecting main process equipment (such as mobile phone or apparatus such as computer).
One of them headset main body 4 is left ear headset main body, and another headset main body 4 is auris dextra headset main body.One in two headset main body 4 is connected with the second control box 3 by earphone cord, second control box 3 is connected by earphone cord one end with the first control box 2, another headset main body 4 is directly connected with same one end of the first control box 2 by earphone cord, and the other end of the first control box 2 is connected with USB plug 1 by earphone cord 6.
Headset main body 4 comprises shell and the loudspeaker be arranged in shell and noise detecting microphone, and noise detecting microphone can be arranged in the rear operatic tunes of headset main body 4, effectively can pick up ambient noise.Shell comprises the protecgulum and bonnet that are combined with each other, protecgulum is provided with and greatly forms the first wire netting 9 of the first electric capacity 100, bonnet is provided with and greatly forms the second wire netting 5 of the second electric capacity 200, that is, a pole of the first electric capacity 100 is wire nettings 9, and another pole is the earth, namely the GND in circuit serves as another pole of the first electric capacity 100, one pole of the second electric capacity 200 is wire nettings 5, and another pole is the earth, and the GND namely in circuit serves as another pole of the second electric capacity 200.
The box body of the first earphone control box 2 comprises the upper cover 10 and lower cover 11 that are combined with each other, tray interior is provided with the first PCBA board 7, first PCBA board 7 and is provided with the first capacitance testing circuit 300, second capacitance testing circuit 400, controller 500, Dolby circuit 600, voltage of voltage regulation road and audio coding decoding chip.
Noise detecting microphone is connected with Dolby circuit 600, noise detecting microphone carries out processing to play active noise reduction effect for picking up ambient noise and passing to Dolby circuit 600, the specific implementation of noise reduction is not emphasis of the present invention, those skilled in the art can design different Dolby circuits according to demand or select existing noise reduction chip or circuit, do not repeat them here.
First capacitance testing circuit 300 is connected with controller 500, first capacitance testing circuit 300 detects the capacitance of the first electric capacity 100 and exports capacitance to controller 500, and controller 500 exports On/Off signal to Dolby circuit 600 after calculating the change of the capacitance of the first electric capacity 100.Specifically, the medium not having the first electric capacity when wear headphones is at the beginning air, after user's wear headphones, the first wire netting can cause the medium of the first electric capacity to become human body skin with contact human skin, thus cause the first electric capacity to change, user takes the process of earphone in contrast, therefore can judge whether that generation is worn or takes action by the change of the capacitance of detection first electric capacity, if produce and wear action, controller output signal opens noise-reduction control system work, if instead produce and take action, controller output signal stops noise reduction system work.This set makes the use of user have more real-time, and user brings earphone noise reduction automatically to open, and take down earphone noise reduction and automatically close, during owing to not wearing, decrease of noise functions is closed automatically, and the effective cruise-ability of battery is improved.
Second capacitance testing circuit 400 is connected with controller 500, second capacitance testing circuit 400 detects the capacitance of the second electric capacity 200 and exports capacitance to controller 500, and controller 500 exports On/Off signal to Dolby circuit 600 after calculating the change of the capacitance of the second electric capacity 100.Arranging the second electric capacity is condition in order to additionally provide manual switch decrease of noise functions to user, if user wants to open monitor function, only need to go to touch the bonnet of earphone the second metal electrical network is touched capacitance that human body skin just can change the second electric capacity with hand, controller judges that controlling noise reduction system after the second electric capacity changes changes current state, namely controls noise reduction system and becomes halted state from current operating state or become operating state from current halted state.Existing monitor function switch is physical switches button, and manual switch of the present utility model does not have physical switches button, has effectively saved cost, also makes noise cancelling headphone lighter simultaneously.
The box body of the second earphone control box 3 comprises the upper cover 12 and lower cover 13 that are combined with each other, and tray interior is provided with the second PCBA board 8, and speech microphone 17 is arranged in the second PCBA board 8.The box body of the second earphone control box 3 is provided with the volume increment key, the volume-down keys that are connected with the second PCBA board 8 respectively and answers/pause button, volume increment key and the volume of volume-down keys for regulating loudspeaker to export, answer/pause button for interrupt audio frequency play or enter voice call state.
Main process equipment is by USB plug 1 input digital audio signal (comprising audio digital signals), be converted to simulated audio signal via audio coding decoding chip to export loudspeaker to and play, the analog voice signal that speech microphone 17 picks up is converted to audio digital signals via audio coding decoding chip, export main process equipment via USB plug 1 again, sent to the other side of voice call by main process equipment.
The VBUS pin of USB plug 1 is connected with voltage stabilizing circuit, voltage stabilizing circuit is connected with Dolby circuit 600, main process equipment by USB plug 1 for Dolby circuit is powered, the charging circuit of supplying cell and supplying cell so just can be removed in the structure of noise cancelling headphone, facilitate the product design of noise cancelling headphone, effectively save cost, also made noise cancelling headphone lighter simultaneously.Here voltage stabilizing circuit can select low pressure difference linearity voltage stabilizing (LowDropoutRegulator, LDO) circuit.
The controller of the present embodiment can be following arbitrary: single-chip microcomputer, PLC module, FPGA module.
Shown in figure 2, the active noise reduction earphone of the present embodiment is preferably non-built-in earplug, non-built-in earplug refers to that wearing rear earplug is positioned at the auricle of user and can not enters duct, this earphone is more suitable for the first capacitor design of the present utility model, because In-Ear Headphones generally all wears thicker silica gel sheath, when making exploring electrode, electrode, away from human body skin, is not easy detection.
The utility model arranges wire netting and forms electric capacity on earphone protecgulum, when user's wear headphones, wire netting and contact human skin cause electric capacity to change, otherwise, when user takes off earphone from ear, electric capacity also can change, and the situation of change that controller obtains electric capacity controls the decrease of noise functions unlatching of earphone or closes.
Although be described in detail specific embodiments more of the present utility model by example, it should be appreciated by those skilled in the art, above example is only to be described, instead of in order to limit scope of the present utility model.It should be appreciated by those skilled in the art, when not departing from scope and spirit of the present utility model, above embodiment can be modified.Scope of the present utility model is limited by claims.
Claims (10)
1. an active noise reduction earphone, is characterized in that, comprises headset main body (4) and the first earphone control box (2);
Described headset main body (4) comprises shell and the loudspeaker be arranged in shell and noise detecting microphone; Described shell comprises the protecgulum and bonnet that are combined with each other, and described protecgulum is provided with and greatly forms first wire netting (9) of the first electric capacity (100);
The inside of described first earphone control box (2) is provided with the first PCBA board (7), and described first PCBA board (7) is provided with the first capacitance testing circuit (300), controller (500) and Dolby circuit (600); Described noise detecting microphone is connected with described Dolby circuit (600), described first capacitance testing circuit (300) detects the capacitance of described first electric capacity (100) and exports controller (500) to, and described controller (500) exports On/Off signal to described Dolby circuit (600) after calculating the change of the capacitance of described first electric capacity (100).
2. active noise reduction earphone according to claim 1, is characterized in that, described bonnet is provided with and greatly forms second wire netting (5) of the second electric capacity (200);
Described first PCBA board (7) is also provided with the second capacitance testing circuit (400); Described second capacitance testing circuit (400) detects the capacitance of described second electric capacity (200) and exports controller (500) to, and described controller (500) exports On/Off signal to described Dolby circuit (600) after calculating the change of the capacitance of described second electric capacity (200).
3. active noise reduction earphone according to claim 1 and 2, is characterized in that, described controller (500) is for following arbitrary: single-chip microcomputer, PLC module, FPGA module.
4. active noise reduction earphone according to claim 1 and 2, it is characterized in that, described active noise reduction earphone also comprises USB headset plug (1), one end of described first earphone control box (2) is connected with headset main body (4) by earphone cord, and the other end is connected with described USB headset plug (1) by earphone cord.
5. active noise reduction earphone according to claim 4, is characterized in that, described first PCBA board (7) is also provided with the voltage stabilizing circuit be connected with Dolby circuit, and the VBUS pin of described USB plug (1) is connected with described voltage stabilizing circuit.
6. active noise reduction earphone according to claim 5, is characterized in that, described voltage stabilizing circuit is low-dropout linear voltage-regulating circuit.
7. active noise reduction earphone according to claim 4, is characterized in that, described active noise reduction earphone also comprises speech microphone (17);
Described first PCBA board (7) is also provided with audio coding decoding chip, the digital audio and video signals that described USB plug (1) is transmitted is converted to simulated audio signal via described audio coding decoding chip and exports described loudspeaker to, and the analog voice signal that described speech microphone (17) picks up is converted to audio digital signals via described audio coding decoding chip and exports via described USB plug (1).
8. active noise reduction earphone according to claim 7, it is characterized in that, described headset main body (4) comprises left ear headset main body and auris dextra headset main body, the second earphone control box (3) is also provided with between one of described left ear headset main body or auris dextra headset main body and described first earphone control box (2), the inside of described second earphone control box (3) is provided with the second PCBA board (8), the box body of described second earphone control box (3) is provided with the volume increment key be connected with the second PCBA board (8) respectively, volume-down keys, and answer/pause button, described speech microphone (17) is arranged on described second PCBA board (8).
9. active noise reduction earphone according to claim 1 and 2, is characterized in that, described noise detecting microphone is arranged in the rear operatic tunes of headset main body (4).
10. active noise reduction earphone according to claim 1 and 2, is characterized in that, described active noise reduction earphone is non-built-in earplug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520549080.6U CN204795532U (en) | 2015-07-24 | 2015-07-24 | Earphone of making an uproar falls in initiative |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520549080.6U CN204795532U (en) | 2015-07-24 | 2015-07-24 | Earphone of making an uproar falls in initiative |
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| Publication Number | Publication Date |
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| CN204795532U true CN204795532U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520549080.6U Active CN204795532U (en) | 2015-07-24 | 2015-07-24 | Earphone of making an uproar falls in initiative |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788737A (en) * | 2016-04-20 | 2016-07-20 | 深圳市方格子电子有限公司 | Lighting data transmission line and earphone employing same |
| CN110300344A (en) * | 2019-03-25 | 2019-10-01 | 深圳市增长点科技有限公司 | Adaptive noise reduction earphone |
| CN110891221A (en) * | 2019-12-25 | 2020-03-17 | 歌尔科技有限公司 | Wireless earphone and wearing detection device and method thereof |
| CN111163391A (en) * | 2020-04-03 | 2020-05-15 | 恒玄科技(北京)有限公司 | Method for noise reduction of headphones and noise reduction headphones |
| CN111885458A (en) * | 2020-07-20 | 2020-11-03 | 歌尔科技有限公司 | Audio playing method, earphone and computer readable storage medium |
-
2015
- 2015-07-24 CN CN201520549080.6U patent/CN204795532U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788737A (en) * | 2016-04-20 | 2016-07-20 | 深圳市方格子电子有限公司 | Lighting data transmission line and earphone employing same |
| CN110300344A (en) * | 2019-03-25 | 2019-10-01 | 深圳市增长点科技有限公司 | Adaptive noise reduction earphone |
| CN110891221A (en) * | 2019-12-25 | 2020-03-17 | 歌尔科技有限公司 | Wireless earphone and wearing detection device and method thereof |
| CN111163391A (en) * | 2020-04-03 | 2020-05-15 | 恒玄科技(北京)有限公司 | Method for noise reduction of headphones and noise reduction headphones |
| CN111885458A (en) * | 2020-07-20 | 2020-11-03 | 歌尔科技有限公司 | Audio playing method, earphone and computer readable storage medium |
| CN111885458B (en) * | 2020-07-20 | 2022-04-22 | 歌尔科技有限公司 | Audio playing method, earphone and computer readable storage medium |
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| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |