CN208540114U - A kind of bluetooth headset based on NFMI technology - Google Patents
A kind of bluetooth headset based on NFMI technology Download PDFInfo
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- CN208540114U CN208540114U CN201821168887.5U CN201821168887U CN208540114U CN 208540114 U CN208540114 U CN 208540114U CN 201821168887 U CN201821168887 U CN 201821168887U CN 208540114 U CN208540114 U CN 208540114U
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Abstract
The utility model discloses a kind of bluetooth headset based on NFMI technology, including main earphone and from earphone.Wireless communication module, the first magnetic induction switch module, the first NFMI wireless module, the first audio decoder module and the first player are provided in main earphone.Control module, the 2nd NFMI wireless module, the second audio decoder module and the second player are provided with from earphone.When first magnetic induction switch module detects that main earphone is separated with earphone cradle, then wireless communication module is opened.Module receives the audio data that voice frequency terminal transmitting comes to main earphone by wireless communication, and is wirelessly communicated by NFMI and the audio data after coding is sent to from earphone, makes winner's earphone and from earphone while playing audio-fequency data.The utility model controls the working condition of bluetooth headset by magnetic induction switch, and realizing bluetooth headset can just be switched on after taking out in cradle or charging box, and bluetooth headset is avoided to open by mistake machine, and the situation for electricity of avoiding waste occurs.
Description
Technical field
The utility model relates to bluetooth headset technical field more particularly to a kind of bluetooth headsets based on NFMI technology.
Background technique
Bluetooth headset exactly applies Bluetooth technology in hands-free headsets, is a kind of wireless headset, can allow user can
To exempt impeding for irritating electric wire, the easily call in various ways of comfortable ground.Bluetooth headset be typically equipped with earphone cradle or
Charging box, when bluetooth headset connects earphone cradle or charging box is charged, since the variation of voltage easily causes chip
Work leads to the case where opening by mistake machine generation, wastes energy.
Utility model content
The utility model embodiment provides a kind of bluetooth headset based on NFMI technology, it is intended to which solution exists in the prior art
Bluetooth headset connects earphone cradle or when charging box is charged, and since the variation of voltage easily causes chip operation, causes
The problem of opening by mistake machine.
The utility model embodiment provides a kind of bluetooth headset based on NFMI technology, including main earphone and from earphone.
Wireless communication module, the first magnetic induction switch module, the first NFMI wireless module, the first sound are provided in main earphone
Frequency decoder module and the first player, wireless communication module are connect with the first magnetic induction switch module, and wireless communication module passes through
Communication bus is connect with the first NFMI wireless module and the first audio decoder module respectively, and the first audio decoder module is broadcast with first
Put device connection.
Control module, the 2nd NFMI wireless module, the second audio decoder module and the second player are provided with from earphone,
Control module is connect with the 2nd NFMI wireless module and the second audio decoder module respectively, and the 2nd NFMI wireless module passes through communication
Bus is connect with the second audio decoder module, and the second audio decoder module is connect with the second player.
When first magnetic induction switch module detects that main earphone is separated with earphone cradle, then wireless communication module is opened;
Wireless communication module receives the audio data that voice frequency terminal is sent, and audio data is parsed for main earpiece audio data and from ear
Machine audio data;Main earpiece audio data are sent to the first audio decoder module by wireless communication module, and wireless communication module will
It is sent to the first NFMI wireless module from earpiece audio data, mode will be from earphone by wireless communication for the first NFMI wireless module
Data are transmitted to the 2nd NFMI wireless module.
In one embodiment, the first infrared induction module, the first infrared induction module and first are additionally provided on main earphone
The connection of audio decoder module, the first infrared induction module send the first play signal to the first audio decoder mould after detecting human body
Block, so that the first audio decoder module controls the main earpiece audio data of the first player plays.
In one embodiment, the first NFMI wireless module includes the first NFMI wireless audio chip and first antenna line
Circle.
In one embodiment, the second infrared induction module, the second infrared induction module and control are additionally provided with from earphone
Module connection, the second infrared induction module send the second play signal to control module, so that control module after detecting human body
It controls the second audio decoder module and passes through the second player plays from earpiece audio data.
In one embodiment, the second magnetic induction that the switch state for controlling control module is additionally provided with from earphone is opened
Module is closed, the second magnetic induction switch module is connect with control module, and the second magnetic induction switch module is detected from earphone and earphone
When cradle separates, then open control module.
In one embodiment, the 2nd NFMI wireless module includes the 2nd NFMI wireless audio chip and the second antenna line
Circle.
In one embodiment, the first microphone for call, the first microphone and channel radio are additionally provided on main earphone
Believe module connection.
In one embodiment, the second microphone for noise reduction, the second microphone and channel radio are additionally provided on main earphone
Believe module connection.
In one embodiment, the control button connecting with wireless communication module is additionally provided on main earphone.
In one embodiment, the first battery module and the first Voltage stabilizing module are additionally provided on main earphone.
Existing beneficial effect is the utility model embodiment compared with prior art: being controlled by magnetic induction switch module
The working condition of bluetooth headset, realizing bluetooth headset can just be switched on after taking out in cradle or charging box, avoid bluetooth ear
The situation of chance error booting, electricity of avoiding waste occurs.
Detailed description of the invention
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the main earphone for the bluetooth headset that one embodiment of the utility model provides;
Fig. 2 is the structural schematic diagram of the slave earphone for the bluetooth headset that one embodiment of the utility model provides.
Specific embodiment
In order to make those skilled in the art more fully understand this programme, below in conjunction with attached in this programme embodiment
Figure, is explicitly described the technical solution in this programme embodiment, it is clear that described embodiment is this programme a part
Embodiment, instead of all the embodiments.Based on the embodiment in this programme, those of ordinary skill in the art are not being made
The range of this programme protection all should belong in every other embodiment obtained under the premise of creative work.
The specification and claims of this programme and term " includes " and other any deformations in above-mentioned attached drawing are
Refer to " including but not limited to ", it is intended that cover and non-exclusive include.In addition, term " first " and " second " etc. are for distinguishing
Different objects, not for description particular order.
In the present invention unless specifically defined or limited otherwise, the terms such as term " connected ", " connection " should be done extensively
Reason and good sense solution may be a detachable connection for example, it may be being fixedly connected, or integral;It can be mechanical connection, it can also be with
It is electrical connection;Can be directly connected, can also indirectly connected through an intermediary, can be connection inside two elements or
The interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
The realization of the utility model is described in detail below in conjunction with specific attached drawing.
Figures 1 and 2 show that a kind of bluetooth headset based on NFMI technology provided by an embodiment of the present invention
Structure illustrates only part relevant to the utility model embodiment, details are as follows for ease of description:
As depicted in figs. 1 and 2, a kind of bluetooth headset based on NFMI technology provided by the utility model embodiment, packet
Include main earphone 100 and from earphone 200.
Wireless communication module 110, the first magnetic induction switch module 150, the first wireless mould of NFMI are provided in main earphone 100
Block 120, the first audio decoder module 130 and the first player 140, wireless communication module 110 and the first magnetic induction switch module
150 connection, wireless communication module 110 by communication bus respectively with the first NFMI wireless module 120 and the first audio decoder mould
Block 130 connects, and the first audio decoder module 130 is connect with the first player 140.
Control module 210, the 2nd NFMI wireless module 220, the second audio decoder module 230 are provided with from earphone 200
With the second player 240, control module 210 connects with the 2nd NFMI wireless module 220 and the second audio decoder module 230 respectively
It connects, the 2nd NFMI wireless module 220 is connect by communication bus with the second audio decoder module 230, the second audio decoder module
230 connect with the second player 240.
When first magnetic induction switch module 150 detects that main earphone 100 is separated with earphone cradle, then wireless communication is opened
Module 110;Wireless communication module 110 receives the audio data that voice frequency terminal is sent, and audio data is parsed as main earphone sound
Frequency evidence and from earpiece audio data;Main earpiece audio data are sent to the first audio decoder module by wireless communication module 110
130, wireless communication module 110 will be sent to the first NFMI wireless module 120, the first NFMI wireless module from earpiece audio data
120 by wireless communication mode the 2nd NFMI wireless module 220 will be transmitted to from earpiece audio data.
In one embodiment, wireless communication module 110 by serial communication bus respectively with the first NFMI wireless module
120 and first audio decoder module 130 connect.
2nd NFMI wireless module 220 is connect by serial communication bus with the second audio decoder module 230.
Serial communication bus includes I2C bus, spi bus etc..
In the present embodiment, the speed and versatility of data transmission are improved using communication bus.
In one embodiment, the switch state of the first magnetic induction switch module 150 control wireless communication module 110, the
The enable end of the output termination wireless communication module 110 of one magnetic induction switch module 150.The inspection of first magnetic induction switch module 150
It measures main earphone 100 and is in discrete state with earphone cradle, then open wireless communication module 110, make its work.First magnetic strength
Inductive switch module 150 detects that main earphone 100 is in engagement state with earphone cradle, then closes wireless communication module 110, make
It does not work.
Bluetooth headset generally is equipped with the charging box for accommodating earphone in the present embodiment, is equipped with grafting bluetooth in charging box
The earphone cradle of earphone.This programme realizes bluetooth headset after taking out in cradle or charging box by magnetic induction function
It can just be switched on, bluetooth headset is avoided to open by mistake machine, the situation for electricity of avoiding waste occurs.
In one embodiment, voice frequency terminal can be the equipment such as mobile phone, computer, music player.
In one embodiment, wireless communication module 110 includes Bluetooth chip and the storage core connecting with Bluetooth chip
Piece and the first crystal oscillator.
The model of Bluetooth chip can be SER8670.
Storage chip can be FLASH flash chip.
The frequency of first crystal oscillator is 26MHz.
In one embodiment, the first audio decoder module 130 includes the first audio decoder chip and the second crystal oscillator.
The model WM8904 of first audio decoder chip.
The frequency of second crystal oscillator is 12.288MHz.
In the present embodiment, module 110 and voice frequency terminal wirelessly communicate main earphone 100 by wireless communication, the first NFMI without
Wire module 120 is based on the near field NFMI magnetic induction technology with the 2nd NFMI wireless module 220 and carries out wireless communication.
Module 110 receives the audio data that voice frequency terminal transmitting comes to main earphone 100 by wireless communication, and main earphone 100 is logical
It crosses NFMI communication the audio data after coding is sent to from earphone 200, makes winner's earphone 100 and from earphone 200 while playing
Audio data.Main earphone 100 and between earphone 200 use NFMI communication mode, instead of RF, (Radio Frequency, is penetrated
Frequently transmission and traditional Bluetooth transmission mode).Audio transmission is realized by near field magnetic induction, that left and right earphone before getting rid of
The worry for needing line to connect realizes the really wireless function of enjoying music and hand-free call, there is very strong practicability and portable
Property.Since NFMI communication power consumption is low, transmission range is short, can penetrate tissue and to human body almost without radiation injury, realize
The long-time of ears wireless headset is continued a journey discontinuously to be connected the nothing between two earphones, and to connect more reliable, user experience
More preferably, solve it is big using radio-frequency technique as technical difficulty caused by the application of ears bluetooth headset, spoke may be caused to human body
It penetrates harm and transmits the big technical problem of power consumption.
As shown in Figure 1, being additionally provided with the first infrared induction mould on main earphone 100 in one embodiment of the utility model
Block 160, the first infrared induction module 160 are connect with the first audio decoder module 130, and the first infrared induction module 160 detects
The first play signal to the first audio decoder module 130 is sent after human body, so that the first audio decoder module 130 control first is broadcast
It puts device 140 and plays main earpiece audio data.
In the present embodiment, infrared induction module detects human body, can be used for judging whether user wears earphone.Work as use
In person's wearing after earphone, starts audio and play.After user takes earphone, stops audio and play.
As shown in Figure 1, in one embodiment of the utility model, it is additionally provided on main earphone 100 and wireless communication module
The control button MFB of 110 connections.
Control button MFB can be MFB key (multifunction buffer, multifunction key), for example, answering key
And/or audio plays control button etc..
As shown in Figure 1, being additionally provided with first for call on main earphone 100 in one embodiment of the utility model
Microphone MC1, the first microphone MC1 are connect with wireless communication module 110.
First microphone MC1 receives the speech audio in call.
As shown in Figure 1, being additionally provided with second for noise reduction on main earphone 100 in one embodiment of the utility model
Microphone MC2, the second microphone MC2 are connect with wireless communication module 110.
Second microphone MC2 receives the natural noise in external environment, and natural noise is sent to wireless communication module
110, wireless communication module 110 includes subtracter, and the first received speech audio of microphone MC1 is subtracted with natural noise,
To filter out natural noise.
First microphone MC1 and the second microphone MC2 can be microphone, microphone etc..
In one embodiment of the utility model, the first battery module and the first pressure stabilizing mould are additionally provided on main earphone 100
Block.First battery module is connect with the first Voltage stabilizing module.
In one embodiment, the first charging interface, the output end of the first charging interface and are additionally provided on main earphone 100
The power end of one battery module connects.
In one embodiment, the first battery module includes 3.7V battery and battery protection chip.Battery module is used for
It powers to wireless communication module 110, the first magnetic induction switch module 150 and the first Voltage stabilizing module.
First Voltage stabilizing module includes 3V voltage stabilizing chip, 1.8V voltage stabilizing chip and 1.3V voltage stabilizing chip.
The 3.7V voltage that 3V voltage stabilizing chip accesses the output of the first battery module exports 3V voltage after carrying out steady pressure treatment, to the
The power supply of one infrared induction module 160.
The 3.7V voltage that 1.8V voltage stabilizing chip accesses the output of the first battery module exports 1.8V voltage after carrying out steady pressure treatment,
It is 1.3V voltage that 1.3V voltage stabilizing chip, which accesses the processing of 1.8V voltage,.1.8V voltage stabilizing chip and 1.3V voltage stabilizing chip to the first NFMI without
Wire module 120 and the power supply of the first audio decoder module 130.
In one embodiment of the utility model, the first NFMI wireless module 120 includes the first NFMI wireless audio core
Piece and first antenna coil.
The model NxH2281 of first NFMI wireless audio chip.
As shown in Fig. 2, being provided with control module 210, from earphone 200 in one embodiment of the utility model
Two NFMI wireless modules 220, the second audio decoder module 230 and the second player 240, control module 210 is respectively with second
NFMI wireless module 220 and the connection of the second audio decoder module 230, the 2nd NFMI wireless module 220 and the second audio decoder mould
Block 230 is connected by communication bus, and the second audio decoder module 230 is connect with the second player 240.
Control module 210 includes MCU (Micro Control Unit, micro-control unit).The model of MCU
STM8L151G4U6TR。
As shown in Fig. 2, being additionally provided with from earphone 200 in one embodiment of the utility model for controlling control mould
Second magnetic induction switch module 250 of the switch state of block 210, the second magnetic induction switch module 250 connect with control module 210
It connects, the second magnetic induction switch module 250 detects when separating from earphone 200 with earphone cradle, then open control module 210.
In one embodiment, the second magnetic induction switch module 250 is connected by a voltage stabilizing chip and control module 210
It connects, the second magnetic induction switch module 250 controls the enabled of voltage stabilizing chip, so that the power loss that obtains to control module 210 controls.
In one embodiment, the second magnetic induction switch module 250 controls the switch state of control module 210,
The enable end of the output termination control module 210 of second magnetic induction switch module 250.The detection of second magnetic induction switch module 250
It is in discrete state to from earphone 200 and earphone cradle, then open control module 210, make its work.Second magnetic induction switch
Module 250, which is detected from earphone 200 and earphone cradle, is in engagement state, then closes control module 210, it is made not work.
As shown in Fig. 2, being additionally provided with the second infrared induction mould from earphone 200 in one embodiment of the utility model
Block 260, the second infrared induction module 260 are connect with control module 210, and the second infrared induction module 260 is sent out after detecting human body
Send the second play signal to control module 210, so that control module 210 controls the second audio decoder module 230 and broadcasts by second
Device 240 is put to play from earpiece audio data.
In one embodiment of the utility model, the second charging interface, the second battery module are additionally provided with from earphone 200
With the second Voltage stabilizing module.Second battery module is connect with the second charging interface and the second Voltage stabilizing module respectively.
In one embodiment, the first battery module includes 3.7V battery and battery protection chip.Battery module is used for
It powers to the second magnetic induction switch module 250 and the second Voltage stabilizing module.
Second Voltage stabilizing module includes 3V voltage stabilizing chip, 1.8V voltage stabilizing chip and 1.3V voltage stabilizing chip.
The 3.7V voltage that 3V voltage stabilizing chip accesses the output of the second battery module exports 3V voltage after carrying out steady pressure treatment, to the
The power supply of two infrared induction modules 260.
The 3.7V voltage that 1.8V voltage stabilizing chip accesses the output of the second battery module exports 1.8V voltage after carrying out steady pressure treatment.
In one embodiment, from earphone 200, the output of the second magnetic induction switch module 250 terminates 1.8V pressure stabilizing
The enable end of chip, the power end of the output termination control module 210 of 1.8V voltage stabilizing chip, thus the second magnetic induction switch module
250 realize the gain and loss electric control of control module 210 by 1.8V voltage stabilizing chip.
In one embodiment, from earphone 200,1.8V voltage stabilizing chip passes through a switching tube and 1.3V voltage stabilizing chip
Connection, the input terminal of the output termination switching tube of 1.8V voltage stabilizing chip, the input of the output termination 1.3V voltage stabilizing chip of switching tube
End, a control terminal of the controlled termination control module 210 of switching tube.
Whether 210 control switch pipe of control module is connected.When switching tube is connected, the 1.8V voltage of 1.8V voltage stabilizing chip output
1.3V voltage stabilizing chip is flowed into through switching tube, so that 1.3V voltage stabilizing chip exports 1.3V voltage.
1.8V voltage and 1.3V voltage are used to supply to the 2nd NFMI wireless module 220 and the second audio decoder module 230
Electricity.
In one embodiment of the utility model, the 2nd NFMI wireless module 220 includes the 2nd NFMI wireless audio core
Piece and the second aerial coil.
The model NxH2281 of 2nd NFMI wireless audio chip.
The above, above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations;Although ginseng
The utility model is described in detail according to previous embodiment, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes;And these are modified or replaceed, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (10)
1. a kind of bluetooth headset based on NFMI technology, which is characterized in that including main earphone and from earphone;
Wireless communication module, the first magnetic induction switch module, the first NFMI wireless module, the first sound are provided in the main earphone
Frequency decoder module and the first player, the wireless communication module are connect with the first magnetic induction switch module, described wireless
Communication module is connect with the first NFMI wireless module and the first audio decoder module respectively by communication bus, described
First audio decoder module is connect with first player;
It is described that control module, the 2nd NFMI wireless module, the second audio decoder module and the second player are provided with from earphone,
The control module is connect with the 2nd NFMI wireless module and the second audio decoder module respectively, the 2nd NFMI
Wireless module is connect by communication bus with the second audio decoder module, the second audio decoder module and described second
Player connection;
When the first magnetic induction switch module detects that the main earphone is separated with earphone cradle, then the channel radio is opened
Believe module;The wireless communication module receives the audio data that voice frequency terminal is sent, and the audio data is parsed as main ear
Machine audio data and from earpiece audio data;The main earpiece audio data are sent to described first by the wireless communication module
Audio decoder module, the wireless communication module are sent to the first NFMI wireless module from earpiece audio data for described,
The first NFMI wireless module by wireless communication mode by it is described from earpiece audio data be transmitted to the 2nd NFMI without
Wire module.
2. the bluetooth headset as described in claim 1 based on NFMI technology, which is characterized in that be additionally provided on the main earphone
One infrared induction module, first infrared induction module are connect with the first audio decoder module, the first infrared sense
The first play signal is sent after answering module to detect human body to the first audio decoder module, so that first audio decoder
Module controls main earpiece audio data described in first player plays.
3. the bluetooth headset as described in claim 1 based on NFMI technology, which is characterized in that the first NFMI wireless module
Including the first NFMI wireless audio chip and first antenna coil.
4. the bluetooth headset as described in claim 1 based on NFMI technology, which is characterized in that described to be additionally provided with from earphone
Two infrared induction modules, second infrared induction module are connect with the control module, the second infrared induction module inspection
The second play signal is sent to the control module, so that the control module controls second audio decoder after measuring human body
Module by described in second player plays from earpiece audio data.
5. the bluetooth headset as described in claim 1 based on NFMI technology, which is characterized in that described to be additionally provided with use from earphone
In the second magnetic induction switch module of the switch state for controlling the control module, the second magnetic induction switch module with it is described
Control module connection, the second magnetic induction switch module detect it is described when being separated from earphone with the earphone cradle, then
Open the control module.
6. the bluetooth headset as described in claim 1 based on NFMI technology, which is characterized in that the 2nd NFMI wireless module
Including the 2nd NFMI wireless audio chip and the second aerial coil.
7. the bluetooth headset as described in claim 1 based on NFMI technology, which is characterized in that be additionally provided with use on the main earphone
In the first microphone of call, first microphone is connect with the wireless communication module.
8. the bluetooth headset as claimed in claim 7 based on NFMI technology, which is characterized in that be additionally provided with use on the main earphone
In the second microphone of noise reduction, second microphone is connect with the wireless communication module.
9. the bluetooth headset as described in claim 1 based on NFMI technology, which is characterized in that be additionally provided on the main earphone with
The control button of the wireless communication module connection.
10. the bluetooth headset as described in claim 1 based on NFMI technology, which is characterized in that be additionally provided on the main earphone
First battery module and the first Voltage stabilizing module.
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110166874A (en) * | 2019-06-03 | 2019-08-23 | 广州由我科技股份有限公司 | A kind of induction touching type bluetooth headset |
CN111697713A (en) * | 2019-03-16 | 2020-09-22 | 炬芯(珠海)科技有限公司 | Wireless earphone charging control method, wireless earphone and charging box |
CN111752372A (en) * | 2019-03-28 | 2020-10-09 | 深圳市冠旭电子股份有限公司 | Action recognition method and device and computer readable storage medium |
CN112134549A (en) * | 2020-09-22 | 2020-12-25 | Oppo广东移动通信有限公司 | Startup control method, device, equipment and storage medium |
WO2021042875A1 (en) * | 2019-09-02 | 2021-03-11 | 华为技术有限公司 | Earphone |
CN113259829A (en) * | 2021-04-07 | 2021-08-13 | 深圳市豪恩声学股份有限公司 | Method and device for detecting NFMI (network function management interface) function of wireless headset |
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2018
- 2018-07-20 CN CN201821168887.5U patent/CN208540114U/en active Active
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111697713A (en) * | 2019-03-16 | 2020-09-22 | 炬芯(珠海)科技有限公司 | Wireless earphone charging control method, wireless earphone and charging box |
CN111697713B (en) * | 2019-03-16 | 2022-04-29 | 炬芯科技股份有限公司 | Wireless earphone charging control method, wireless earphone and charging box |
CN111752372A (en) * | 2019-03-28 | 2020-10-09 | 深圳市冠旭电子股份有限公司 | Action recognition method and device and computer readable storage medium |
CN110166874A (en) * | 2019-06-03 | 2019-08-23 | 广州由我科技股份有限公司 | A kind of induction touching type bluetooth headset |
WO2021042875A1 (en) * | 2019-09-02 | 2021-03-11 | 华为技术有限公司 | Earphone |
CN112134549A (en) * | 2020-09-22 | 2020-12-25 | Oppo广东移动通信有限公司 | Startup control method, device, equipment and storage medium |
CN113259829A (en) * | 2021-04-07 | 2021-08-13 | 深圳市豪恩声学股份有限公司 | Method and device for detecting NFMI (network function management interface) function of wireless headset |
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