CN205812323U - A kind of earphone, audio frequency processing circuit and terminal - Google Patents
A kind of earphone, audio frequency processing circuit and terminal Download PDFInfo
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- CN205812323U CN205812323U CN201620685132.7U CN201620685132U CN205812323U CN 205812323 U CN205812323 U CN 205812323U CN 201620685132 U CN201620685132 U CN 201620685132U CN 205812323 U CN205812323 U CN 205812323U
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- wheat
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Abstract
This utility model provides a kind of earphone, audio frequency processing circuit and terminal, and wherein, earphone includes: earplug, plug, earphone cord, main wheat and secondary wheat；Described earplug is electrically connected with described plug by described earphone cord；Described main wheat is located on described earphone cord, and is electrically connected with described plug by described earphone cord, and described secondary wheat is located on described earphone cord, and is separated by predeterminable range with described main wheat, is electrically connected with described plug by described earphone cord.The scheme that this utility model provides is by arranging main wheat (collecting the voice of doping ambient noise) and secondary wheat (collection ambient noise), audio signal in audio signal in main wheat and secondary wheat is carried out process and obtains voice by recycling terminal, ambient noise can well be eliminated, improve speech quality and efficiency.
Description
Technical field
This utility model relates to electronic technology field, particularly relates to a kind of earphone, audio frequency processing circuit and terminal.
Background technology
Along with popularizing of smart mobile phone, use the scene of earphone call to get more and more, and use earphone call to solve
Put both hands, bring great convenience.
But, when using earphone call, if being in the environment that noise is big, current most of earphones can be accomplished well
Shielding external noise makes one's own side can't hear noise, however still can make noise by one's own side's headset be delivered to the other side receiver or
Earphone, makes the other side not hear one's own side and speaks, cause the degradation of speech quality.
Utility model content
The purpose of this utility model is to provide a kind of earphone, audio frequency processing circuit and terminal, solves prior art middle ear
The incomplete problem of machine de-noising function.
For solving above-mentioned technical problem, embodiment of the present utility model provides a kind of earphone, including:
Earplug, plug, earphone cord, main wheat and secondary wheat；
Described earplug is electrically connected with described plug by described earphone cord；Described main wheat is located on described earphone cord, and logical
Crossing described earphone cord to electrically connect with described plug, described secondary wheat is located on described earphone cord, and be separated by with described main wheat preset away from
From, electrically connected with described plug by described earphone cord.
This utility model also provides for a kind of audio frequency processing circuit, including:
Main wheat drive circuit, secondary wheat drive circuit, phase inverter and adder；
The described signal output part of main wheat drive circuit electrically connects with the first signal input part of described adder, described pair
The signal output part of wheat drive circuit electrically connects with the signal input part of described phase inverter, the signal output part of described phase inverter with
First signal input part electrical connection of described adder.
This utility model also provides for a kind of terminal, including: above-mentioned audio frequency processing circuit.
Having the beneficial effect that of technique scheme of the present utility model:
In such scheme, described earphone is by arranging main wheat (collecting the voice of doping ambient noise) and secondary wheat (outside collection
Boundary's noise), the audio signal in the audio signal in main wheat and secondary wheat is carried out process and obtains voice by recycling terminal, can be very
Good elimination ambient noise, improves speech quality and efficiency.
Accompanying drawing explanation
Fig. 1 is the Headphone structure schematic diagram of this utility model embodiment one；
Fig. 2 is the audio frequency processing circuit schematic diagram of this utility model embodiment two；
Fig. 3 is the main wheat/pair wheat drive circuit schematic diagram of this utility model embodiment two；
Fig. 4 is the Audio Processing schematic flow sheet of this utility model embodiment two.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and be embodied as
This utility model is described in detail by example.
This utility model is for the incomplete problem of earphone de-noising function in existing technology, it is provided that multiple solution party
Case, specific as follows:
Embodiment one
As it is shown in figure 1, the earphone that this utility model embodiment one provides includes:
Earplug 1, plug 2, earphone cord 3, main wheat 4 and secondary wheat 5；
Described earplug 1 is electrically connected with described plug 2 by described earphone cord 3；Described main wheat 4 is located on described earphone cord 3,
And electrically connected with described plug 2 by described earphone cord 3, described pair wheat 5 is located on described earphone cord 3, and with described main wheat 4 phase
Every predeterminable range, electrically connected with described plug 2 by described earphone cord 3.
Wherein, secondary wheat is located at the position away from main wheat predeterminable range is to collect ambient noise accurately, being relatively as the criterion
True voice.
Concrete, described earphone cord includes earphone wire sleeve, the first holding wire, secondary signal line, the 3rd holding wire and the 4th
Holding wire, described first holding wire, secondary signal line, the 3rd holding wire and the 4th holding wire are arranged in described earphone wire sleeve；
Described earplug includes left earplug and right earplug；Described left earplug is electrically connected with described plug by the first holding wire, described auris dextra
Plug is electrically connected with described plug by secondary signal line, and described main wheat is electrically connected with described plug by described 3rd holding wire,
Described secondary wheat is electrically connected with described plug by described 4th holding wire.The present embodiment provides the specifically side of setting of two kinds of secondary wheats
Formula is as follows:
The first, as it is shown in figure 1, described secondary wheat 5 is located between described main wheat 4 and described plug 2.
Optionally, by arranging structure secondary wheat is configured as main wheat and barley.
The second, described secondary wheat is located at (not shown) on described earplug；And described earplug is provided with installing hole, institute
State secondary wheat to be fixed on described earplug by described installing hole.Preferably, described secondary wheat can be located at described left earplug or the described right side
On earplug；It is of course also possible to arrange on described left earplug and described right earplug simultaneously, in this no limit.
Concrete, it being provided with cavity inside described earplug, described installing hole connects described cavity and the external world, and described secondary wheat is located at
In described cavity, and by described installing hole to exposing outside.
Corresponding to the increase of secondary wheat, as it is shown in figure 1,5 segmentation structures changed into by described plug 2, include L channel section successively
6, R channel section 7, power supply location 8, main wheat section 9 and secondary wheat section 10.
The earphone provided this utility model embodiment one below is illustrated.
The mike of the portable In-Ear Headphones being typically used for call is placed on earphone cord, and below head,
It is easy to receive people's one's voice in speech.This utility model increases a MIC (secondary wheat) and at earplug, close proximity to human ear, can keep away
When exempting from call, voice is passed to the other side by secondary wheat.
It addition, existing earphone is due to an only mike, so headset plug is four-part form, and put in order as (left
Sound channel, R channel, power supply ground, mike), but owing to the application has diamylose, need to be divided into earphone 5 sections；For compatible one
As four-section type headset, it is preferred that the mike of four-part form before can be divided into two sections, and total length is identical with four-part form, suitable
Sequence is (L channel, R channel, power supply ground, main wheat, secondary wheat).
From the foregoing, it will be observed that the described earphone that this utility model embodiment one provides (is collected the doping external world to make an uproar by arranging main wheat
The voice of sound) and secondary wheat (collection ambient noise), recycling terminal is by the audio signal in the audio signal in main wheat and secondary wheat
Carry out process and obtain voice, ambient noise can well be eliminated, improve speech quality and efficiency.
Embodiment two
As in figure 2 it is shown, the audio frequency processing circuit that this utility model embodiment two provides includes:
Main wheat drive circuit 11, secondary wheat drive circuit 12, phase inverter 13 and adder 14；
The signal output part of described main wheat drive circuit 11 electrically connects with the first signal input part of described adder 14, institute
State the secondary signal output part of wheat drive circuit 12 to electrically connect with the signal input part of described phase inverter 13, the letter of described phase inverter 13
Number outfan electrically connects with the first signal input part of described adder 14.
Voice data after adder 14 process exports analog-digital converter 15 and carries out subsequent treatment.
The audio signal of the audio signal main wheat drive circuit exported by adder and secondary wheat drive circuit output
Inverted signal processes, and can obtain the most clearly voice.Illustrate at this, the Audio Processing that this utility model embodiment provides
Circuit, for arranging the situation of a secondary wheat, arranges that the situation of multiple secondary wheat is similar (only need to increase a multiple secondary wheat audio frequency number
According to integrated circuit), in this no limit.
In order to ensure circuit safety and service life, as in figure 2 it is shown, described audio frequency processing circuit also includes: the first protection
Resistance 16 and the second protective resistance 17；Described first protective resistance 16 be located at the signal output part of described main wheat drive circuit 11 with
Between first signal input part of described adder 14；Described second protective resistance 17 is located at the signal output of described phase inverter 13
Between end and the first signal input part of described adder 14.
Main wheat drive circuit in this utility model embodiment and secondary wheat drive circuit can use same circuit, such as Fig. 3
Shown in, including: power supply the 18, first resistance the 19, second resistance 20, signal input part the 21, first electric capacity the 22, second electric capacity 23, the
One signal output part 24 and secondary signal outfan 25；Annexation each other is not as it is shown on figure 3, repeat them here.
From the foregoing, it will be observed that this utility model embodiment two increases secondary wheat corresponding to an above-described embodiment one, increase so corresponding
Secondary wheat drive circuit, concrete signal processing flow as shown in Figure 4:
Received by the secondary wheat of earphone is ambient noise signal n (t), then by a phase inverter, is processed
After signal-n (t), and original signal opposite polarity, subsequently into adder；By the main wheat of earphone receive be voice believe
Number and ambient noise signal, i.e. m (t)+n (t), signal through amplification after send into adder；Now, by the process of adder,
Obtain signal m (t), be required voice.
In sum, this programme can realize avoiding one's own side's ambient noise to pass to the purpose of the other side when using earphone call, carries
The high quality using earphone call and efficiency.
In order to solve above-mentioned technical problem, this utility model embodiment additionally provides a kind of terminal, including: above-mentioned audio frequency
Process circuit.
Concrete, the receiver J-Horner in described terminal is 5 segmentation structures, includes L channel section, R channel section, power supply successively
Location, main wheat section and secondary wheat section；The signal input part of the main wheat drive circuit in described main wheat section and described audio frequency processing circuit
Electrical connection；Described secondary wheat section electrically connects with the signal input part of the secondary wheat drive circuit in described audio frequency processing circuit.
Wherein, the described of above-mentioned audio frequency processing circuit realizes embodiment all be applicable to the embodiment of this terminal, also can reach
To identical technique effect.
Comprehensive above example, this utility model, by using the Headphone structure in embodiment one, coordinates at embodiment two
The process of reason circuit, in the case of using earphone call, avoids noise transmission to the other side's during may be implemented in call
Purpose, improves speech quality and efficiency.
It may also be said that this utility model embodiment is by increasing secondary wheat on earphone, then correspondence improves the sound in mobile phone
Frequency processes circuit and realizes this function (improving speech quality and the purpose of efficiency).
Above-described is preferred implementation of the present utility model, it should be pointed out that for the ordinary person of the art
For, some improvements and modifications can also be made under without departing from principle premise described in the utility model, these improve and profit
Decorations are also in protection domain of the present utility model.
Claims (11)
1. an earphone, it is characterised in that including:
Earplug, plug, earphone cord, main wheat and secondary wheat；
Described earplug is electrically connected with described plug by described earphone cord；Described main wheat is located on described earphone cord, and passes through institute
Stating earphone cord to electrically connect with described plug, described secondary wheat is located on described earphone cord, and is separated by predeterminable range with described main wheat, logical
Cross described earphone cord to electrically connect with described plug.
2. earphone as claimed in claim 1, it is characterised in that described secondary wheat is located between described main wheat and described plug.
3. earphone as claimed in claim 1, it is characterised in that described secondary wheat is located on described earplug.
4. earphone as claimed in claim 3, it is characterised in that described earplug is provided with installing hole, and described secondary wheat is by described
Installing hole is fixed on described earplug.
5. earphone as claimed in claim 4, it is characterised in that being provided with cavity inside described earplug, described installing hole connects institute
Stating cavity and the external world, described secondary wheat is located in described cavity, and by described installing hole to exposing outside.
6. earphone as claimed in claim 1, it is characterised in that described plug is 5 segmentation structures, include successively L channel section,
R channel section, power supply location, main wheat section and secondary wheat section.
7. earphone as claimed in claim 1, it is characterised in that described earphone cord include earphone wire sleeve, the first holding wire, second
Holding wire, the 3rd holding wire and the 4th holding wire, described first holding wire, secondary signal line, the 3rd holding wire and the 4th signal
Line is arranged in described earphone wire sleeve；Described earplug includes left earplug and right earplug；
Described left earplug is electrically connected with described plug by the first holding wire, and described right earplug is inserted with described by secondary signal line
Head electrical connection, described main wheat is electrically connected with described plug by described 3rd holding wire, and described secondary wheat is by described 4th signal
Line electrically connects with described plug.
8. an audio frequency processing circuit, it is characterised in that including:
Main wheat drive circuit, secondary wheat drive circuit, phase inverter and adder；
The described signal output part of main wheat drive circuit electrically connects with the first signal input part of described adder, and described secondary wheat drives
The signal output part on galvanic electricity road electrically connects with the signal input part of described phase inverter, and the signal output part of described phase inverter is with described
First signal input part electrical connection of adder.
9. audio frequency processing circuit as claimed in claim 8, it is characterised in that also include: the first protective resistance and the second protection
Resistance；
It is defeated with the first signal of described adder that described first protective resistance is located at the signal output part of described main wheat drive circuit
Enter between end；
Described second protective resistance be located at the signal output part of described phase inverter and described adder the first signal input part it
Between.
10. a terminal, it is characterised in that including: audio frequency processing circuit as claimed in claim 8 or 9.
11. terminals as claimed in claim 10, it is characterised in that the receiver J-Horner in described terminal is 5 segmentation structures, successively
Including L channel section, R channel section, power supply location, main wheat section and secondary wheat section；
Described main wheat section electrically connects with the signal input part of the main wheat drive circuit in described audio frequency processing circuit；Described secondary wheat section
Electrically connect with the signal input part of the secondary wheat drive circuit in described audio frequency processing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620685132.7U CN205812323U (en) | 2016-06-30 | 2016-06-30 | A kind of earphone, audio frequency processing circuit and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620685132.7U CN205812323U (en) | 2016-06-30 | 2016-06-30 | A kind of earphone, audio frequency processing circuit and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205812323U true CN205812323U (en) | 2016-12-14 |
Family
ID=57513371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620685132.7U Active CN205812323U (en) | 2016-06-30 | 2016-06-30 | A kind of earphone, audio frequency processing circuit and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205812323U (en) |
-
2016
- 2016-06-30 CN CN201620685132.7U patent/CN205812323U/en active Active
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| GR01 | Patent grant |