CN106856580A - A kind of method of bluetooth earphone and its monitoring condition sound - Google Patents
A kind of method of bluetooth earphone and its monitoring condition sound Download PDFInfo
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- CN106856580A CN106856580A CN201611192853.5A CN201611192853A CN106856580A CN 106856580 A CN106856580 A CN 106856580A CN 201611192853 A CN201611192853 A CN 201611192853A CN 106856580 A CN106856580 A CN 106856580A
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- data signal
- bluetooth earphone
- surrounding environment
- signal
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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
- H04R1/1041—Mechanical or electronic switches, or control elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a kind of bluetooth earphone and its method for monitoring condition sound.Sidetone module is configured with the Bluetooth chip of bluetooth earphone of the invention, SBC audio coding decoding algorithms are solidified with the Bluetooth chip where sidetone module；The method of the present invention includes：When needing to monitor surrounding environment sound, the microphone of bluetooth earphone is enabled, surrounding environment sound is picked up using microphone；First analog signal of surrounding environment sound is converted into the first data signal；SBC audio coding decoding algorithms are called by sidetone module, the first data signal is carried out into digital audio processing is converted to the second data signal；Second data signal is converted into the second analog signal, and the loudspeaker exported to bluetooth earphone is played out, and realizes the monitoring to surrounding environment sound.It can be seen that, this invention simplifies product design, the R＆D cycle is shortened, and design cost is reduced, improve functional stabilization.
Description
Technical field
The present invention relates to ear phone technology field, the method for more particularly to a kind of bluetooth earphone and its monitoring condition sound.
Background technology
In order to build audible environment good during earphone broadcasting audio, bluetooth earphone, especially wear-type bluetooth earphone
The sealing property of headgear has very well, but this easily causes user and cannot obtain the sound of surrounding environment, for example, it is desired to at one's side
When people talks, it is impossible to hear the voice of people at one's side, at this moment, it is necessary to which taking earphone just can be so that this just brings not to user
Just.So, the earphone of the function with monitoring condition sound turns into a kind of demand.During using earphone with monitor function, in nothing
In the case of earphone need to being taken, user is heard the ambient sound of surrounding, increased security；Can also with one's side
People is clearly talked.
In the prior art, bluetooth earphone is to realize monitor function, usually using DSP (Digital Signal
Processing, Digital Signal Processing) chip or purchase third party algorithm realize, but, both modes can increase product
Design cost, increase the R＆D cycle, be unfavorable for the exploitation of product.
The content of the invention
In view of realize increasing the design cost of product using dsp chip or purchase third party algorithm in the prior art,
Increase the R＆D cycle, be unfavorable for the problem of the exploitation of product, it is proposed that a kind of bluetooth earphone of the invention and its monitoring condition sound
Method, to solve or to solve the above problems at least in part.
According to an aspect of the invention, there is provided a kind of method of bluetooth earphone monitoring condition sound, the bluetooth earphone
Bluetooth chip in be configured with sidetone module, be solidified with SBC audio coding decodings in the Bluetooth chip where the sidetone module
Algorithm；Methods described includes：
When needing to monitor surrounding environment sound, the microphone of the bluetooth earphone is enabled, week is picked up using the microphone
Enclose ambient sound；
First analog signal of the surrounding environment sound is converted into the first data signal；
The SBC audio coding decodings algorithm is called by the sidetone module, first data signal is carried out into numeral
Audio frequency process, is converted to the second data signal；
Second data signal is converted into the second analog signal, and the loudspeaker exported to the bluetooth earphone is carried out
Play, realize the monitoring to surrounding environment sound.
According to another aspect of the present invention, there is provided a kind of bluetooth earphone, including microphone and loudspeaker, the bluetooth
Sidetone module is configured with the Bluetooth chip of earphone, SBC audios volume is solidified with the Bluetooth chip where the sidetone module
Decoding algorithm；The bluetooth earphone also includes：Enable module, analog-to-digital conversion module, D/A converter module；
The microphone, for picking up surrounding environment sound；
The enable module, for when needing to monitor surrounding environment sound, enabling the microphone of the bluetooth earphone, utilizes
The microphone pickup surrounding environment sound is sent to the analog-to-digital conversion module；
The analog-to-digital conversion module, for the first analog signal of the surrounding environment sound to be converted into the first numeral letter
Number, it is sent to the sidetone module；
The sidetone module, for calling the SBC audio coding decodings algorithm, numeral is carried out by first data signal
Audio frequency process, is converted to the second data signal and is sent to the D/A converter module；
The D/A converter module, for second data signal to be converted into the second analog signal, output is described in
The loudspeaker of bluetooth earphone；
The loudspeaker, second analog signal for playing the D/A converter module output, realizes to surrounding
The monitoring of ambient sound.
In sum, the present invention opens microphone when user needs monitoring condition sound, and surrounding ring is picked up using microphone
Border sound, after the first analog signal of surrounding environment sound is converted into the first data signal, using existing sidetone in bluetooth earphone
Module calls SBC audio coding decoding algorithms, the second numeral that first digit signal is converted into be recognized by earphone speaker
Signal, then the second data signal is converted into the second analog signal, and output is played out to earphone speaker, is realized to surrounding
The monitoring of ambient sound.The sidetone module that the present invention is used using bluetooth earphone in call, calls free SBC audio coding decodings
Algorithm, has reached the effect for monitoring surrounding environment sound, and not using complicated circuit, monitor function is equally stablized.It can be seen that, present invention letter
Change product design, shortened the R＆D cycle, and reduced design cost, improve functional stabilization.
Brief description of the drawings
A kind of method flow diagram of bluetooth earphone monitoring condition sound that Fig. 1 is provided for one embodiment of the invention；
A kind of schematic diagram of bluetooth earphone that Fig. 2 is provided for one embodiment of the invention；
A kind of schematic diagram of bluetooth earphone that Fig. 3 is provided for another embodiment of the present invention.
Specific embodiment
Mentality of designing of the invention is：In view of realizing meeting using dsp chip or purchase third party algorithm in the prior art
Increase the design cost of product, increase the R＆D cycle, be unfavorable for the problem of the exploitation of product, it is also contemplated that bluetooth earphone bluetooth mould
Sidetone module in block can realize the characteristic of the transmission between microphone to loudspeaker of user's own voice.Profit of the invention
With the free SBC audio coding decoding algorithms being cured in sidetone module, microphone pickup surrounding environment sound is utilized into bluetooth ear
After existing sidetone module calls SBC audio coding decoding algorithms to be converted into the signal that can be recognized by earphone speaker in machine, output
Played out to earphone speaker, realize the monitoring to surrounding environment sound.To make the object, technical solutions and advantages of the present invention more
Plus it is clear, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Sidetone module is configured with the Bluetooth chip of bluetooth earphone, the sidetone module is general in call, there is provided will use
The sound at family is transferred to the path of loudspeaker from microphone, so that user's audible sound of oneself in call.It is blue to realize
Tooth earphone under other usage scenarios to the monitoring of surrounding environment sound, such as when audio is listened, by surrounding environment sound from microphone
It is transferred in loudspeaker, and without earphone is taken, the present invention utilizes existing sidetone module in the bluetooth earphone, and in sidetone
Solidify SBC audio coding decoding algorithms in Bluetooth chip where module, realize the monitoring to surrounding environment sound.
A kind of method flow diagram of bluetooth earphone monitoring condition sound that Fig. 1 is provided for one embodiment of the invention.Such as Fig. 1 institutes
Show, the method includes：
Step S110, when needing to monitor surrounding environment sound, enables the microphone of bluetooth earphone, and week is picked up using microphone
Enclose ambient sound.
When user, it is necessary to when monitoring surrounding environment sound, user need not take earphone, is pressed using earphone by enabling
Key, opens the microphone of bluetooth earphone, and surrounding environment sound is picked up using microphone.For example, when user needs and people at one's side
When being talked, without taking earphone, after pressing enable button, microphone is opened, it is possible to pick up people at one's side by microphone
One's voice in speech.
Step S120, the first data signal is converted into by the first analog signal of surrounding environment sound.
The surrounding environment sound that microphone is picked up is an analog signal, in order to the further treatment of surrounding environment sound, need
The analog signal of surrounding environment sound is converted into data signal.Here by analog-to-digital conversion (ADC, analog to
Digital convertor) module changed.
Step S130, SBC audio coding decoding algorithms are called by sidetone module, and the first data signal is carried out into DAB
Treatment, is converted to the second data signal.
The effect of the sidetone module in the Bluetooth chip of bluetooth earphone is in call, there is provided by the sound of user from wheat
Gram wind is transferred to the path of loudspeaker, so that user's audible sound of oneself in call.But bluetooth earphone other
This module does not work under usage scenario, i.e., surrounding environment sound cannot be transferred to loudspeaker from microphone；Even if or this
Module works, but the analog signal of surrounding environment sound also cannot be by speaker identification.So, in view of sidetone module is above-mentioned
Characteristic, solidifies free SBC audio coding decoding algorithms in the Bluetooth chip where sidetone module, can provide surrounding environment sound
The path of loudspeaker is transferred to from microphone, surrounding environment sound is converted into speaker identification by SBC audio coding decoding algorithms
Signal after transmission of the surrounding environment sound from microphone to loudspeaker can just be realized by the path, user just can be from raising one's voice
Surrounding environment sound is heard in device.
Here SBC (sub band code) audio coding decoding algorithm is a kind of instrument of transducing audio form, surrounding ring
Border sound can be converted into by the second data signal of speaker identification by the algorithm.
Step S140, the second analog signal is converted to by the second data signal, and the loudspeaker exported to bluetooth earphone enters
Row is played, and realizes the monitoring to surrounding environment sound.
By the conversion of SBC audio coding decodings algorithm is data signal, in order to realize the broadcasting of loudspeaker, the data signal
Also need to, by digital-to-analogue conversion (DAC, digital to analog convertor), the second data signal is converted into second
Analog signal, could play out in loudspeaker.
The sidetone module that the present invention is used using bluetooth earphone in call, calls free SBC audio coding decoding algorithms,
The effect for monitoring surrounding environment sound is not only can reach in voice call, monitoring can also be reached when audio is played or when standby
The effect of surrounding environment sound, not using complicated circuit, monitor function is equally stablized.It can be seen that, this invention simplifies product design, contracting
The short R＆D cycle, and design cost is reduced, improve functional stabilization.
In order that the volume of surrounding environment sound that user hears is in a suitable scope, in one of the invention implementation
In example, the first analog signal of surrounding environment sound be converted into the first data signal include in step S120：Regulation first is counted
The signal intensity of word signal.
Here the signal intensity for adjusting the first data signal is realized by adjusting gain (gain) value.Regulation gain
(gain) it is Regulate signal voltage, controls the multiple of low level signal amplification, it is seen that what it was mainly adjusted is signal intensity.
In the present embodiment, a gain1 value can be set in earphone based on experience value, when by the first of surrounding environment sound
When analog signal is converted into the first data signal, the gain1 according to setting adjusts the signal intensity of data signal.
In one embodiment of the invention, SBC audio coding decoding algorithms are called by sidetone module in step S130,
First data signal carried out into digital audio processing be converted to the second data signal including：SBC audios are called by sidetone module
Encoding and decoding algorithm, the first data signal is encoded successively, is compressed, decoding process, obtains the second data signal, and regulation
The signal intensity of the second data signal.
During SBC audio coding decodings algorithm is changed to the first data signal, coding, pressure can be sequentially passed through
The processes such as contracting, decoding process, meanwhile, in order that the volume of surrounding environment sound that user hears is in a suitable scope, this
Embodiment can also be realized by adjusting gain (gain) value of the second data signal.
In the present embodiment, a gain2 value can be set in earphone based on experience value, be changed when by the first data signal
During into the second data signal, the gain2 according to setting adjusts the signal intensity of data signal.
It is the adjustment that yield value is carried out to data signal in above-described embodiment, same user can also pass through on earphone
Volume adjusting button, the volume of the surrounding environment sound that loudspeaker is played is adjusted according to own situation.At one of the invention
In embodiment, the second data signal be converted into the second analog signal include in step S140：Receive the volume of bluetooth earphone
The regulating command of button, adjusts the signal intensity of the second analog signal.Here user can be by the volume adjusting on bluetooth earphone
Button, sends increase volume or reduces the instruction of volume, user is received during the digital-to-analogue conversion of surrounding environment sound and is led to
Cross the regulating command that volume button sends, it is possible to the analog signal of surrounding environment sound is adjusted according to regulating command.But
It is that the volume of the surrounding environment sound played here by volume adjusting button regulation loudspeaker needs higher limit and lower limit
Value, that is to say, that the volume of the surrounding environment sound that user hears will not unconfined increase or reduction, when reach the upper limit or lower limit
When, the size of volume will not again increase or reduce.
It should be noted that the embodiment of above-mentioned regulation volume can individually be implemented, can also be combined with each other implementation, knot
The sense of hearing demand for implementing that user can be more conformed to is closed, strengthens Consumer's Experience.
In one embodiment of the invention, in step S110 need monitor surrounding environment sound when, enable bluetooth ear
The microphone of machine includes：Switch module is set on bluetooth earphone, when switch module is opened, the Mike of bluetooth earphone is enabled
Wind, opens the monitoring condition sound function of bluetooth earphone.
Switch module is set on bluetooth earphone, when user needs monitoring condition sound, switch is opened, it is possible to realize
The monitoring of surrounding environment sound.It should be noted that during user's monitoring condition sound, loudspeaker playing environment sound, and
The audio that user plays before opening switch is at the state that pause is played, and when user's closing switch, audio starts to broadcast again
Put.
A kind of schematic diagram of bluetooth earphone that Fig. 2 is provided for one embodiment of the invention.As shown in Fig. 2 the bluetooth earphone
200 include：Microphone 220 and loudspeaker 260, are configured with sidetone module 240 in the Bluetooth chip of bluetooth earphone, in sidetone module
SBC audio coding decoding algorithms are solidified with the Bluetooth chip at place；Characterized in that, bluetooth earphone also includes：Enable module
210th, analog-to-digital conversion module 230, D/A converter module 250.
Microphone 220, for picking up surrounding environment sound.
Module 210 is enabled, for when needing to monitor surrounding environment sound, the microphone of bluetooth earphone being enabled, using Mike
Wind pickup surrounding environment sound is sent to analog-to-digital conversion module.
Analog-to-digital conversion module 230, for the first analog signal of surrounding environment sound to be converted into the first data signal, sends
Give sidetone module.
Sidetone module 240, for calling SBC audio coding decoding algorithms, digital audio processing is carried out by the first data signal
Be converted to the second data signal and be sent to D/A converter module.
D/A converter module 250, for the second data signal to be converted into the second analog signal, bluetooth earphone is arrived in output
Loudspeaker.
Loudspeaker 260, the second analog signal for playing D/A converter module output, realizes the prison to surrounding environment sound
Listen.
In one embodiment of the invention, analog-to-digital conversion module 230, the signal for being additionally operable to adjust the first data signal is strong
Degree.
In one embodiment of the invention, sidetone module 240, specifically for calling SBC audio coding decodings algorithm by
One data signal is encoded, compressed successively, decoding process, obtains the second data signal, and be additionally operable to the numeral of regulation second
The signal intensity of signal.
A kind of schematic diagram of bluetooth earphone that Fig. 3 is provided for another embodiment of the present invention.As shown in figure 3, the bluetooth ear
Machine 300 includes：Enable module 310, microphone 320, analog-to-digital conversion module 330, sidetone module 340, the and of D/A converter module 350
Loudspeaker 360；Volume button 370 is additionally provided with bluetooth earphone 300.Wherein, module 310, microphone 320, modulus is enabled to turn
Enable module 210, microphone shown in mold changing block 330, sidetone module 340, D/A converter module 350 and loudspeaker 360 and Fig. 2
220th, analog-to-digital conversion module 230, sidetone module 240, D/A converter module 250 and loudspeaker 260 have correspondence identical function,
Identical part will not be repeated here.
Volume button 370, the regulating command for sending the second analog signal of regulation.
D/A converter module 350, is additionally operable to the regulating command of volume of reception button 370, adjusts the letter of the second analog signal
Number intensity.
In one embodiment of the invention, switch module is provided with bluetooth earphone, module 310 is enabled and is specially switch
Module, when switch module is opened, enables the microphone of bluetooth earphone, opens the monitoring condition sound function of bluetooth earphone.
In sum, the present invention opens microphone when user needs to monitor surrounding environment sound, and week is picked up using microphone
Ambient sound is enclosed, after the first analog signal of surrounding environment sound is converted into the first data signal, using existing in bluetooth earphone
Sidetone module calls SBC audio coding decoding algorithms, and first digit signal is converted into can be by the second of earphone speaker identification
Data signal, then the second data signal is converted into the second analog signal, and output is played out to earphone speaker, it is right to realize
The monitoring of surrounding environment sound.The sidetone module that the present invention is used using bluetooth earphone in call, calls free SBC audios to compile
Decoding algorithm, not only can reach the effect for monitoring surrounding environment sound in voice call, also may be used when audio is played or when standby
The effect of surrounding environment sound is monitored to reach, not using complicated circuit, monitor function is equally stablized.It can be seen that, this invention simplifies
Product design, shortens the R＆D cycle, and reduces design cost, improves functional stabilization.
The above, specific embodiment only of the invention, under above-mentioned teaching of the invention, those skilled in the art
Other improvement or deformation can be carried out on the basis of above-described embodiment.It will be understood by those skilled in the art that above-mentioned tool
The purpose of the present invention is simply preferably explained in body description, and protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of method of bluetooth earphone monitoring condition sound, is configured with sidetone module in the Bluetooth chip of the bluetooth earphone,
SBC audio coding decoding algorithms are solidified with Bluetooth chip where the sidetone module；Characterized in that, methods described includes：
When needing to monitor surrounding environment sound, the microphone of the bluetooth earphone is enabled, surrounding ring is picked up using the microphone
Border sound；
First analog signal of the surrounding environment sound is converted into the first data signal；
The SBC audio coding decodings algorithm is called by the sidetone module, first data signal is carried out into DAB
Treatment, is converted to the second data signal；
Second data signal is converted into the second analog signal, and the loudspeaker exported to the bluetooth earphone is broadcast
Put, realize the monitoring to surrounding environment sound.
2. the method for claim 1, it is characterised in that first analog signal by the surrounding environment sound is changed
Include into the first data signal：
Adjust the signal intensity of first data signal.
3. the method for claim 1, it is characterised in that described to call the SBC audios to compile by the sidetone module
Decoding algorithm, carries out digital audio processing and is converted to the second data signal including by first data signal：
The SBC audio coding decodings algorithm is called by the sidetone module, first data signal is encoded successively,
Compression, decoding process, obtain the second data signal, and the signal intensity for adjusting second data signal.
4. the method for claim 1, it is characterised in that described that second data signal is converted into the second simulation letter
Number include：
The regulating command of the volume button of the bluetooth earphone is received, the signal intensity of second analog signal is adjusted.
5. the method for claim 1, it is characterised in that described when needing to monitor surrounding environment sound, enables the indigo plant
The microphone of tooth earphone includes：
Switch module is set on the bluetooth earphone, when the switch module is opened, the Mike of the bluetooth earphone is enabled
Wind, opens the monitoring condition sound function of the bluetooth earphone.
6. a kind of bluetooth earphone, including microphone and loudspeaker, are configured with sidetone module in the Bluetooth chip of the bluetooth earphone,
SBC audio coding decoding algorithms are solidified with the Bluetooth chip where the sidetone module；Characterized in that, the bluetooth earphone
Also include：Enable module, analog-to-digital conversion module, D/A converter module；
The microphone, for picking up surrounding environment sound；
The enable module, for when needing to monitor surrounding environment sound, the microphone of the bluetooth earphone being enabled, using described
Microphone pickup surrounding environment sound is sent to the analog-to-digital conversion module；
The analog-to-digital conversion module, for the first analog signal of the surrounding environment sound to be converted into the first data signal, hair
Give the sidetone module；
The sidetone module, for calling the SBC audio coding decodings algorithm, DAB is carried out by first data signal
Treatment is converted to the second data signal and is sent to the D/A converter module；
The D/A converter module, for second data signal to be converted into the second analog signal, output to the bluetooth
The loudspeaker of earphone；
The loudspeaker, second analog signal for playing the D/A converter module output, realizes to surrounding environment
The monitoring of sound.
7. bluetooth earphone as claimed in claim 6, it is characterised in that the analog-to-digital conversion module, is additionally operable to regulation described the
The signal intensity of one data signal.
8. bluetooth earphone as claimed in claim 6, it is characterised in that the sidetone module, specifically for calling the SBC sounds
First data signal is encoded, compressed by frequency encoding and decoding algorithm successively, decoding process obtains the second data signal, and
It is additionally operable to adjust the signal intensity of second data signal.
9. bluetooth earphone as claimed in claim 6, it is characterised in that be provided with volume button on the bluetooth earphone,
The D/A converter module, is additionally operable to receive the regulating command of the volume button, adjusts second analog signal
Signal intensity.
10. bluetooth earphone as claimed in claim 6, it is characterised in that switch module is provided with the bluetooth earphone, it is described
Enable module and be specially the switch module, when the switch module is opened, enable the microphone of the bluetooth earphone, open
The monitoring condition sound function of the bluetooth earphone.
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| CN107708017A (en) * | 2017-11-29 | 2018-02-16 | 杭州电子科技大学 | The earphone with regard to soundproof effect can be adjusted need not be extracted during a kind of wearing |
| CN108156550A (en) * | 2017-12-27 | 2018-06-12 | 上海传英信息技术有限公司 | The playing method and device of headphone |
| CN108600893A (en) * | 2018-07-10 | 2018-09-28 | 武汉轻工大学 | Military environments audio classification system, method and military noise cancelling headphone |
| CN110572734A (en) * | 2019-09-04 | 2019-12-13 | 广东以诺通讯有限公司 | Method for intelligently monitoring environmental sounds through earphone and earphone |
| CN111616733A (en) * | 2020-05-28 | 2020-09-04 | 广州爱听贝科技有限公司 | Wearable wireless auscultation device |
| CN113811848A (en) * | 2019-05-06 | 2021-12-17 | 苹果公司 | Apparatus, method and user interface for adaptively providing audio output |
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| CN107708017A (en) * | 2017-11-29 | 2018-02-16 | 杭州电子科技大学 | The earphone with regard to soundproof effect can be adjusted need not be extracted during a kind of wearing |
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| CN108156550B (en) * | 2017-12-27 | 2020-03-31 | 上海传英信息技术有限公司 | Playing method and device of headset |
| CN108600893A (en) * | 2018-07-10 | 2018-09-28 | 武汉轻工大学 | Military environments audio classification system, method and military noise cancelling headphone |
| CN113811848A (en) * | 2019-05-06 | 2021-12-17 | 苹果公司 | Apparatus, method and user interface for adaptively providing audio output |
| CN110572734A (en) * | 2019-09-04 | 2019-12-13 | 广东以诺通讯有限公司 | Method for intelligently monitoring environmental sounds through earphone and earphone |
| CN111616733A (en) * | 2020-05-28 | 2020-09-04 | 广州爱听贝科技有限公司 | Wearable wireless auscultation device |
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