CN209642920U - Environment sensing noise reduction in-ear typed Bluetooth headset - Google Patents
Environment sensing noise reduction in-ear typed Bluetooth headset Download PDFInfo
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- CN209642920U CN209642920U CN201821996213.4U CN201821996213U CN209642920U CN 209642920 U CN209642920 U CN 209642920U CN 201821996213 U CN201821996213 U CN 201821996213U CN 209642920 U CN209642920 U CN 209642920U
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- noise reduction
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- active noise
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Abstract
Environment sensing noise reduction in-ear typed Bluetooth headset, including transmitter and the first noise reduction earplug component, it further include active noise reduction chip, sound Threshold detection chip, audio-frequency power amplifier, bluetooth mould group processor and battery, active noise reduction chip and sound Threshold detection chip are connect with transmitter, and sound Threshold detection chip connects active noise reduction chip, active noise reduction chip is connect with audio-frequency power amplifier, active noise reduction chip is connect with bluetooth mould group processor, and audio-frequency power amplifier is connect with the first noise reduction earplug component；For sound Threshold detection chip for detection noise voltage-boosting stage and control active noise reduction chip operation pattern switching, battery is respectively active noise reduction chip, sound Threshold detection chip, audio-frequency power amplifier and the power supply of bluetooth mould group processor.It helps user of service mutually to exchange without removing earphone, sound general orientation can also be perceived, while automatically switching to protection mode in burst noise, protect user of service's hearing.
Description
Technical field
The utility model relates to technical field of acoustics, and in particular to environment sensing noise reduction in-ear typed Bluetooth headset.
Background technique
Currently, traditional earphone is mainly used to send called use as communication terminal, only by the passive sound insulation of earplug to decline
Noise abatement sound, and passively insulating against sound is to be worked by earplug to the barrier of sound, can only be had preferably to the medium-high frequency of sound
Effect, and active noise reduction, be for low frequency noise reduction and the effective measures taken, can make up for it passive protection to low frequency noise reduction not
Foot, to there is better noise reduction effect, but has also just obstructed perception of the human ear to extraneous acoustic information while noise isolating sound, and
Do not need protection most of the time, but want mutual ditch, this will user of service must remove earphone, use very
It is inconvenient.
Utility model content
For the defect for solving the above-mentioned prior art, the utility model provides environment sensing noise reduction in-ear typed Bluetooth headset.
The technical solution of the utility model is: environment sensing noise reduction in-ear typed Bluetooth headset, including transmitter and the first drop
It makes an uproar earplug component, further includes active noise reduction chip, sound Threshold detection chip, audio-frequency power amplifier, bluetooth mould group processor
And battery, the active noise reduction chip and the sound Threshold detection chip are connect with the transmitter, and the sound thresholding
Detection chip connects the active noise reduction chip, and the active noise reduction chip is connect with the audio-frequency power amplifier, the master
Dynamic noise reduction chip is connect with the bluetooth mould group processor, and the audio-frequency power amplifier is connect with the first noise reduction earplug component；
The sound Threshold detection chip is described for detection noise voltage-boosting stage and the control active noise reduction chip operation pattern switching
Battery is respectively the active noise reduction chip, the sound Threshold detection chip, the audio-frequency power amplifier and the bluetooth
The power supply of mould group processor.
Preferably, the transmitter and the first noise reduction earplug component are set on the first shell.
Preferably, volume button is equipped in the first shell, the volume button controls the bluetooth mould group processing
The volume of device output sound.
Preferably, pickup mode key and noise reduction mode key are equipped in the first shell, the pickup mode is pressed
Key and the noise reduction mode key pass through the bluetooth mould group processor control active noise reduction chip switch mode.
Preferably, switch key is equipped in the first shell, the switch key controls the Cell On-Off.
Preferably, the first shell, which passes through, is connected with the with neck ring headband group and neck ring group for packing into head part
Two shells are equipped with neck ring cable in neck ring group.
Preferably, the second shell is connected with the second noise reduction earplug component and ear-hang group, the second noise reduction earplug
Component connects audio-frequency power amplifier by neck ring cable.
Preferably, the active noise reduction chip, the sound Threshold detection chip, the audio-frequency power amplifier and described
Bluetooth mould group processor is located in the first shell, and the battery is located in the second shell.
The utility model has the beneficial effects that the utility model by transmitter acquire ambient sound export it is special to active noise reduction
It is filtered with chip and Phase Processing, then voice signal after processing is exported to audio-frequency power amplifier and carries out power amplification,
It finally exports to receiver and restores speech information, user of service is helped mutually to exchange while sound general orientation can also be perceived,
Electricity is closed by sound Threshold detection chip controls active noise reduction special chip without removing earphone, while in burst noise
Road, no longer output voice signal, automatically switch to protection mode, protect user of service's hearing.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model structural blast schematic diagram；
Fig. 3 is the utility model electrical block diagram.
Specific embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
Technical solutions of the utility model are as follows: environment sensing noise reduction in-ear typed Bluetooth headset, as shown in Figure 1, including sending words
Device 11 and the first noise reduction earplug component 12, as shown in Fig. 2, further include active noise reduction chip 101, sound Threshold detection chip 102,
Audio-frequency power amplifier 103, bluetooth mould group processor 104 and battery 105, active noise reduction chip 101 use the AS system of AMS company
Column active noise reduction chip, sound Threshold detection chip 102 using JRC company NJU series audio-switch chip, at bluetooth mould group
Device 104 is managed using the MT25 series Bluetooth chip of Lian Fake company, as shown in figure 3, active noise reduction chip 101 and the inspection of sound thresholding
It surveys chip 102 to connect with transmitter 11, and sound Threshold detection chip 102 connects active noise reduction chip 101, active noise reduction chip
101 connect with audio-frequency power amplifier 103, and active noise reduction chip 101 is connect with bluetooth mould group processor 104, and audio power is put
Big device 103 is connect with the first noise reduction earplug component 12；Sound Threshold detection chip 102 is for detection noise voltage-boosting stage and control master
Dynamic 101 operating mode of noise reduction chip switching, sound Threshold detection chip 102 detect that the collected noise of transmitter 11 is greater than and set
When setting value, it is switched to noise reduction mode when sound Threshold detection chip 102 controls active noise reduction chip 101, voice signal is carried out
Noise reduction process, protects user's hearing, and bluetooth mould group processor 104 receives the transmission of sound signals of voice frequency terminal transmission to master
Dynamic noise reduction chip 101, active noise reduction chip 101 are transmitted to the first noise reduction earplug component 12 by audio-frequency power amplifier 103 again,
Realize telecommunication, battery 105 is respectively active noise reduction chip 101, sound Threshold detection chip 102, Audio power amplifier
Device 103 and bluetooth mould group processor 104 are powered；Transmitter 11 and the first noise reduction earplug component 12 are located in first shell 1；
One shell 1 is equipped with volume button 13, and volume button 13 controls the volume that bluetooth mould group processor 104 exports sound；First
Shell 1 is equipped with pickup mode key 14 and noise reduction mode key 15, and pickup mode key 14 and noise reduction mode key 15 pass through
Bluetooth mould group processor 104 controls 101 switch mode of active noise reduction chip, and pickup mode key 14 passes through bluetooth mould group processor
104 control active noise reduction chips 101 export low level, so that earphone is switched to pickup mode, noise reduction mode key 15 passes through bluetooth
Mould group processor 104 exports high level, and earphone is made to be switched to noise reduction mode；Switch key 16, switch are equipped in first shell 1
Switch 16 controls 105 on-off of battery；Pass through in the first shell 1 with the neck ring headband group 3 and neck for packing into head part
Ring group 4 is connected with second shell 2, and neck ring cable 41 is equipped in neck ring group 4；Second shell 2 is connected with the second noise reduction earplug
Component 21 and ear-hang group 22, the second noise reduction earplug component 21 connect audio-frequency power amplifier 103 by neck ring cable 41；Actively drop
Make an uproar chip 101, sound Threshold detection chip 102, audio-frequency power amplifier 103 and bluetooth mould group processor 104 is located at first shell
In body 1, it is active noise reduction chip 101, sound Threshold detection chip that battery 105, which is located in second shell 2 through neck ring cable 41,
102, audio-frequency power amplifier 103, bluetooth mould group processor 104 are powered；Or active noise reduction chip 101, sound Threshold detection core
Piece 102, audio-frequency power amplifier 103, bluetooth mould group processor 104 and battery 105 are located in first shell 1 or second shell 2
It is interior；Or active noise reduction chip 101, sound Threshold detection chip 102, audio-frequency power amplifier 103, bluetooth mould group processor 104
It is located in second shell 2, it is active noise reduction chip 101, sound thresholding that battery 105, which is located at first shell 1 by neck ring cable 41,
Detection chip 102, audio-frequency power amplifier 103, bluetooth mould group processor 104 are powered.
When surrounding has huge noise, transmitter 11 collects environmental sound signal and exports to active noise reduction chip 101 to ring
Border voice signal is filtered and Phase Processing, and the noise signal in environmental sound signal is filtered out, and combines sound thresholding
Detection chip 102 detects the noise signal in environmental sound signal, when noise signal is greater than setting, sound Threshold detection chip
102 control active noise reduction chips 101 are switched to noise reduction mode, and active noise reduction chip 101 is again by the transmission of sound signals after noise reduction
To audio-frequency power amplifier 103, after audio-frequency power amplifier 103 carries out increase audio power to voice signal, output to first
Noise reduction earplug component 12 and the second noise reduction earplug component 21, bluetooth mould group processor 104 pass through wireless transmission voice signal to sound
Frequency terminal, when voice frequency terminal sends voice signal to bluetooth mould group processor 104, bluetooth mould group processor 104 receives sound
Active noise reduction chip 101 is transmitted to after signal, active noise reduction chip 101 transports to the first noise reduction ear by audio-frequency amplifier 103 again
Plug assembly 12 and the second noise reduction earplug component 21, the speech information sent to voice frequency terminal restore.
The above is only the preferred embodiment of the present invention, is not intended to limit the protection scope of the utility model.
It is practical new to be all contained in this for any modification, equivalent substitution, improvement and etc. made within the spirit and principle of the present invention
In the protection scope of type.
Claims (8)
1. environment sensing noise reduction in-ear typed Bluetooth headset, including transmitter (11) and the first noise reduction earplug component (12), feature
It is: further includes active noise reduction chip (101), sound Threshold detection chip (102), audio-frequency power amplifier (103), bluetooth mould
Group processor (104) and battery (105), the active noise reduction chip (101) and the sound Threshold detection chip (102) and institute
Transmitter (11) connection is stated, and the sound Threshold detection chip (102) connects the active noise reduction chip (101), the master
Dynamic noise reduction chip (101) are connect with the audio-frequency power amplifier (103), the active noise reduction chip (101) and the bluetooth
Mould group processor (104) connection, the audio-frequency power amplifier (103) connect with the first noise reduction earplug component (12)；The sound
Sound Threshold detection chip (102) switches for detection noise voltage-boosting stage and control active noise reduction chip (101) operating mode,
The battery (105) is respectively the active noise reduction chip (101), the sound Threshold detection chip (102), the audio function
Rate amplifier (103) and the bluetooth mould group processor (104) power supply.
2. environment sensing noise reduction in-ear typed Bluetooth headset according to claim 1, it is characterised in that: the transmitter (11)
It is located on first shell (1) with the first noise reduction earplug component (12).
3. environment sensing noise reduction in-ear typed Bluetooth headset according to claim 2, it is characterised in that: in the first shell
(1) volume button (13) are equipped with, the volume button (13) controls the sound of bluetooth mould group processor (104) the output sound
Amount.
4. environment sensing noise reduction in-ear typed Bluetooth headset according to claim 3, it is characterised in that: in the first shell
(1) pickup mode key (14) and noise reduction mode key (15), the pickup mode key (14) and the noise reduction mould are equipped with
Formula key (15) controls active noise reduction chip (101) switch mode by the bluetooth mould group processor (104).
5. environment sensing noise reduction in-ear typed Bluetooth headset according to claim 4, it is characterised in that: in the first shell
(1) switch key (16) are equipped with, the switch key (16) controls battery (105) on-off.
6. environment sensing noise reduction in-ear typed Bluetooth headset according to claim 5, it is characterised in that: in the first shell
(1) by being connected with second shell (2) with the neck ring headband group (3) and neck ring group (4) for packing into head part, in neck ring group
(4) neck ring cable (41) are equipped in.
7. environment sensing noise reduction in-ear typed Bluetooth headset according to claim 6, it is characterised in that: the second shell
(2) it is connected with the second noise reduction earplug component (21) and ear-hang group (22), the second noise reduction earplug component (21) passes through neck ring
Cable (41) connects audio-frequency power amplifier (103).
8. environment sensing noise reduction in-ear typed Bluetooth headset according to claim 7, it is characterised in that: the active noise reduction core
Piece (101), the sound Threshold detection chip (102), the audio-frequency power amplifier (103) and the bluetooth mould group processor
(104) it is located in the first shell (1), the battery (105) is located in the second shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821996213.4U CN209642920U (en) | 2018-11-30 | 2018-11-30 | Environment sensing noise reduction in-ear typed Bluetooth headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821996213.4U CN209642920U (en) | 2018-11-30 | 2018-11-30 | Environment sensing noise reduction in-ear typed Bluetooth headset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209642920U true CN209642920U (en) | 2019-11-15 |
Family
ID=68474009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821996213.4U Active CN209642920U (en) | 2018-11-30 | 2018-11-30 | Environment sensing noise reduction in-ear typed Bluetooth headset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209642920U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111182148A (en) * | 2019-12-30 | 2020-05-19 | 联想(北京)有限公司 | Electronic equipment |
| CN112118506A (en) * | 2020-09-29 | 2020-12-22 | 英华达（上海）科技有限公司 | Earphone noise reduction mode control method, system, equipment and storage medium |
| CN112866858A (en) * | 2021-01-19 | 2021-05-28 | 维沃移动通信有限公司 | Earphone and noise reduction processing method and device |
-
2018
- 2018-11-30 CN CN201821996213.4U patent/CN209642920U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111182148A (en) * | 2019-12-30 | 2020-05-19 | 联想(北京)有限公司 | Electronic equipment |
| CN111182148B (en) * | 2019-12-30 | 2022-02-18 | 联想(北京)有限公司 | Electronic equipment |
| CN112118506A (en) * | 2020-09-29 | 2020-12-22 | 英华达（上海）科技有限公司 | Earphone noise reduction mode control method, system, equipment and storage medium |
| CN112866858A (en) * | 2021-01-19 | 2021-05-28 | 维沃移动通信有限公司 | Earphone and noise reduction processing method and device |
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