CN108924683A - A kind of daily record data store method, device and TWS earphone - Google Patents
A kind of daily record data store method, device and TWS earphone Download PDFInfo
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- CN108924683A CN108924683A CN201810573678.7A CN201810573678A CN108924683A CN 108924683 A CN108924683 A CN 108924683A CN 201810573678 A CN201810573678 A CN 201810573678A CN 108924683 A CN108924683 A CN 108924683A
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- record data
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention discloses a kind of daily record data store method, device and TWS earphones, it is related to portable listening equipment technical field, to solve the problems, such as existing TWS earphone the problem of the status information that cannot quick and precisely know operation when something goes wrong, cannot be to quickly being positioned.The application generates daily record data by recording respectively to the first earphone and the running status information of the second earphone；Daily record data is saved into preset flash memory space, the first earphone and the corresponding default flash memory space of the second earphone are respectively used to store corresponding daily record data.The application saves the running status information of earphone by way of log, ensure that the complete of traceback information.When occurring connecting unstable, system crash or other problems, the status information of operation can be rapidly and accurately known by the daily record data of preservation, running problem is quickly positioned, to be further processed.
Description
Technical field
The present invention relates to portable listening equipment technical fields, more particularly to a kind of daily record data store method, device
And TWS earphone.
Background technique
Earphone is a pair of of converting unit, the electric signal issued for receiving media player or receiver, using close to
The loudspeaker of ear convert it into the sound wave that can be heard.
Current earphone can be divided into wired earphone and wireless headset, and wherein wired earphone needs two earphones in left and right to pass through
Wired connection type forms left and right acoustic channels, generates stereophonic effect, wears very inconvenient.And wireless headset is then to pass through nothing
Line communication protocol (such as bluetooth) is communicated with terminal, is had for wired earphone without tidying up data line, making
With convenient feature.Wherein most emerging really radio interconnected I tech clip S (TWS earphone) is exactly wireless ear at present
It is more typical a kind of in machine.
TWS earphone is the audio signal of mobile phone to be transferred to earphone by Bluetooth link, earphone again will based on Bluetooth technology
Audio data is transferred to another earphone, achievees the purpose that ears with this while playing.Since TWS earphone is related to principal and subordinate angle
A variety of interaction mechanisms such as connection between connection, earphone and mobile phone between color, principal and subordinate, it is possible to will appear and connect unstable, system
The various problems such as collapse.And existing TWS earphone is in the status information that cannot quick and precisely know operation when something goes wrong, and then not
Problem can quickly be positioned.
Summary of the invention
The object of the present invention is to provide a kind of daily record data store method, device and TWS earphones, to solve existing TWS
Earphone is the problem of cannot quick and precisely know the status information of operation when something goes wrong, cannot quickly be positioned to problem.
In order to solve the above technical problems, the present invention provides a kind of daily record data store method, applied in TWS earphone
One earphone and the second earphone, the method includes：
First earphone and the running status information of the second earphone are recorded respectively, generate log number
According to；
The daily record data is saved into preset flash memory space, first earphone and second earphone
Corresponding default flash memory space is respectively used to store corresponding daily record data.
Optionally, further include：First earphone and second earphone are according to predetermined period progress time synchronization.
Optionally, described save the daily record data includes into preset flash memory space：
The mark data of the daily record data is stored to the first storage region of the flash memory space；
The specific data of the daily record data are stored to the second storage region of the flash memory space.
Optionally, described save the daily record data includes into preset flash memory space：
Daily record data currently to be stored carries out in second storage region with last stored daily record data
Continuous storage；
Using the corresponding storage initial address of the daily record data stored and storage end address as the mark data
It stores to first storage region.
Optionally, further include after saving the daily record data into preset flash memory space described：
When retrieving to the daily record data, corresponding store is determined according to the mark data of the daily record data
Beginning address and storage end address；
According to the storage initial address and storage end address, obtained from the storage location of second storage region
Search result.
Optionally, further include after saving the daily record data into preset flash memory space described：
The daily record data is exported by way of bluetooth, to parse the daily record data.
Optionally, described device includes：
Daily record data generation module, for distinguishing first earphone and the running status information of second earphone
It is recorded, generates daily record data；
Memory module, for saving the daily record data into preset flash memory space, first earphone and
The corresponding default flash memory space of second earphone is respectively used to store corresponding daily record data.
Optionally, the memory module includes：
First storage unit, for storing the mark data of the daily record data to the of the flash memory space
One storage region；
Second storage unit, for storing the specific data of the daily record data to the of the flash memory space
Two storage regions.
Optionally, further include：
Export module, for it is described the daily record data is saved into preset flash memory space after, pass through
The mode of bluetooth exports the daily record data, to parse the daily record data.
The present invention also provides a kind of TWS earphone, the TWS earphone includes the first earphone and the second ear being arranged in pairs
Machine is provided with first control unit in first earphone, is provided with the second control unit in second earphone；
The first control unit generates log number for recording to the running status information of the first earphone
According to；And the daily record data is saved into preset flash memory space corresponding with first earphone；
Second control unit generates log number for recording to the running status information of the second earphone
According to；And the daily record data is saved into preset flash memory space corresponding with second earphone.
Optionally, first earphone and second earphone are according to predetermined period progress time synchronization.
Daily record data store method provided by the present invention, applied to the first earphone and the second earphone in TWS earphone,
First earphone and the running status information of the second earphone are recorded respectively, generate daily record data；Daily record data is saved
To in preset flash memory space, the first earphone and the corresponding default flash memory space of the second earphone are respectively used to store
Corresponding daily record data.The application saves the running status information of earphone by way of log, ensure that
Traceback information it is complete.It, can be fast by the daily record data of preservation when occurring connecting unstable, system crash or other problems
Speed accurately knows the status information of operation, is quickly positioned to running problem, to be further processed.This Shen
It please additionally provide a kind of daily record data save set and TWS earphone with above-mentioned same technique effect.
Detailed description of the invention
It, below will be to embodiment or existing for the clearer technical solution for illustrating the embodiment of the present invention or the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of specific embodiment flow chart of daily record data store method provided by the present invention；
Fig. 2 is process schematic of the daily record data store method provided by the present invention in storing data；
Fig. 3 is process schematic of the daily record data store method provided by the present invention in retrieval data；
Fig. 4 is the schematic diagram of another specific embodiment of daily record data store method provided by the present invention；
Fig. 5 is the structural block diagram of daily record data save set provided in an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Daily record data store method provided by the present invention, applied to the first earphone and the second earphone in TWS earphone.
TWS earphone includes the first earphone and the second earphone being arranged in pairs in the embodiment of the present application, and first earphone and the second earphone can
With the TWS earphone that partners, respectively as the audio output of left and right ear.Here, " first " in the first earphone and the second ear
There is no specific limitations for " second " in machine, are only used for distinguishing.
A kind of specific embodiment flow chart of daily record data store method provided by the present invention referring to Fig.1, this method
It specifically includes：
Step S101：First earphone and the running status information of the second earphone are recorded respectively, it is raw
At daily record data；
Wherein, running status information may include that TWS earphone is wrapped during the connection process or in system operation
The whole running state datas contained, can specifically include the parameters such as time, event.
Step S102：The daily record data is saved into preset flash memory space, first earphone and described
The corresponding default flash memory space of second earphone is respectively used to store corresponding daily record data.
Flash memory space is set in the first earphone and the second earphone in advance, when corresponding daily record data generates
Carry out data storage.The application can distribute a part in already present flash memory space in existing TWS earphone, make
For the flash memory space of daily record data storage, or additionally a flash memory space is set again in TWS earphone,
As the flash memory space of daily record data, this does not influence realization of the invention.
Specifically, the present embodiment can store the mark data of the daily record data to the flash memory space
First storage region；The specific data of the daily record data are stored to the second storage region of the flash memory space.Day
The mark data of will data includes at least identification information and corresponding specific data are stored to the address information of the second storage region,
Including storage initial address and storage end address.Identification information can for the temporal information of log, event information or other
Information, the identification information can distinguish different daily record datas, while can be uniquely determined pair by the identification information
The daily record data answered.For example, which time record log can use daily record data is as identification information.Due in TWS ear
Equal start recording daily record data when machine boots up each time is which time log can be distinguished not by current log data
Same log.Certainly, identification information can also use other information, it is not limited here.
When daily record data is stored, the identification information of the daily record data is generated, by the identification information storage first
Storage region stores specific data to the second storage region.Record that the daily record data is stored in the second storage region
Beginning address and end address, the initial address of storage and end address are equally stored to the first storage region.
When daily record data is retrieved, it can navigate to and to retrieve in the first storage region according to retrieval information first
Daily record data identification information and storage initial address, storage end address.In conjunction with storage initial address and storage knot
Beam address directly can navigate to storing daily record data in the second storage region, to be exported or to be inquired.Do not need by
It is successively retrieved according to existing way, retrieval rate is greatly speeded up.
Referring to Fig. 2 daily record data store method provided by the present invention storing data process schematic, by the day
Will data are saved into preset flash memory space and are specifically included：
Step S1021：Daily record data currently to be stored and last stored daily record data are in second storage
It is continuously stored in region；
The second storage region stores the specific data of daily record data in the present embodiment, be different from the prior art in it is every
Log needs to occupy the mode that independent one page page is stored, and the storage of log each time may be implemented in the present embodiment
Continuous storage.After the second storage region has stored the specific data of the log, records it and store initial address and storage
End address.
Step S1022：Using the corresponding storage initial address of the daily record data stored and storage end address as institute
Mark data is stated to store to first storage region.
It stores using storage initial address and storage end address as mark data to the first storage region.In this way
Storage mode, flash resource can be saved, for example, in the prior art each time daily record data be occupy a page sky
Between, by taking a page occupies 4kB as an example, daily record data needs to occupy at least memory headroom of 4kB each time, this is resulted in
The waste in the space flash.And the multiple daily record data of the application can be stored continuously, and the resource of flash can be saved.
Referring to Fig. 3 daily record data store method provided by the present invention retrieval data process schematic, will be described
After daily record data is saved into preset flash memory space, the process retrieved to daily record data includes：
Step S1031：When being retrieved to the daily record data, according to determining pair of the mark data of the daily record data
The storage initial address answered and storage end address；
When retrieving to daily record data, the mark number of log to be retrieved can be first determined in the first memory space
According to obtain storage initial address and the storage end address of corresponding daily record data.
Step S1032：According to the storage initial address and storage end address, from depositing for second storage region
Store up position acquisition search result.
In existing retrieving, need to remove lookup daily record data page by page from the page of memory, and the embodiment of the present application
The mark data for only needing first to read daily record data obtains its storage address, can be directly obtained number in the second storage region
According to retrieval rate is than very fast.
Flash is managed generally according to page, and a page size is 4kB, is not limited to 4kB certainly.Storage
Data unit is all 32bit.In the embodiment of the present application, the first storage region of flash memory space can account for a page,
The storage initial address of the specific data of number and log for storing each log and storage end address.Flash storage
Second storage region in space can occupy N number of page, and N is positive integer, for storing the specific data of log.As a kind of tool
The specific data of body embodiment, log may include two classes：LOG_NUM data and LOG_DATA data.Wherein, LOG_NUM
Data are to store the number data of log, and LOG_DATA data are specific data.
The concrete form of LOG_NUM data is：
| 1bit | 31bit |
| Log_Flag(0b1) | Log_Num |
Wherein, first bit is the flag bit of log, behind 31bit record be currently which time log storage.
The concrete form of LOG_DATA data is：
| 1bit | 5bit | 20bit | 6bit |
| Data_Flag(0b0) | id | time | data |
Wherein, first bit is DATA flag bit, and 1-5bit is that the type of current data (in TWS earphone field, needs
Principal and subordinate's information, connection event, master-slave swap event, wearing state event etc. are stored, above-mentioned event is different id), 6-25bit
For current time, 26-31bit is that (step-by-step that saves as of data saves specific data, such as whether connection mobile phone 1bit, if even
It connects to ear 1bit etc.).
Log record successively saves backward, it is assumed that has 5 page to be used to store log data, after 5 page are filled with, needs
Wipe foremost page, while retrieving the data of storage LOG_NUM, delete the LOG_NUM in wiped page address range with
And the record of storage state pause judgments address, with this purpose corresponding with the LOG data actually saved that reaches LOG_NUM.
By setting the first storage region and the second storage region, flash resource can be saved, each log can be according to
It is secondary to be saved.And information retrieval quickly can be carried out to log, log can successively be written when restarting backward.
Based on any of the above embodiments, the first earphone described in the embodiment of the present application and second earphone according to
Predetermined period carries out time synchronization.It, can will be current by the first earphone after establishing connection between the first earphone and the second earphone
Time is sent to the second earphone by acl link, and the second earphone records current time, later when preset time carries out one time
Between it is synchronous.For example, predetermined period can be selected as 10 minutes.By carry out time synchronization, can more accurately to daily record data into
Row analysis.
Based on any of the above embodiments, the application, which can further include, carries out derived mistake to daily record data
Journey is specifically as follows：The daily record data is exported by way of bluetooth, to parse the daily record data.
Preferably, the connection between TWS earphone and terminal can be established by the way of BLE, when needing to daily record data
When being read, daily record data is transferred to by terminal by BLE, and parse to it.
Daily record data store method provided by the present invention, applied to the first earphone and the second earphone in TWS earphone,
First earphone and the running status information of the second earphone are recorded respectively, generate daily record data；Daily record data is saved
To in preset flash memory space, the first earphone and the corresponding default flash memory space of the second earphone are respectively used to store
Corresponding daily record data.The application saves the running status information of earphone by way of log, ensure that
Traceback information it is complete.It, can be fast by the daily record data of preservation when occurring connecting unstable, system crash or other problems
Speed accurately knows the status information of operation, is quickly positioned to running problem, to be further processed.
It, should referring to the schematic diagram of another specific embodiment of Fig. 4 daily record data store method provided by the present invention
Method specifically includes：
Step S201：The LOG_NUM information saved in flash is retrieved after booting, finds the last one LOG_NUM.
Step S202：Judge whether to preserve the corresponding end address of log, if so, then entering step S203；If
No, then S204 is entered step；
Step S203：The corresponding initial address of the LOG_NUM is read, the area that log is not written is found from initial address traversal
Domain (all 1111 ... regions)；Then current address is recorded, new LOG_NUM and the address are recorded.
Step S204：Directly record the address that new LOG_NUM and the secondary log start storage.
Step S205：Log information is saved in RAM, after the first earphone and the second earphone successful matching, synchronous first ear
The timestamp of machine and the second earphone.
Step S206：Log, and synchronous first earphone is written to flash every preset time (such as five minutes) in idle
With the time of the second earphone.
Wherein, if writing a page, the information such as the latter page and corresponding LOG_NUM is wiped, are continued backward
Write-in.
Step S207：When normal shutdown, log identification information is written to flash before being powered off, and record the secondary log
The end address of storage.If when abnormal shutdown, when restarting RAM no initializtion, then to flash write-in log mark after restarting
Information, and the end address of record log storage.Otherwise, the end address of the secondary log storage is lost, and needs to retrieve again.
Daily record data save set provided in an embodiment of the present invention is introduced below, daily record data described below is protected
Cryopreservation device can correspond to each other reference with above-described daily record data store method.
Fig. 5 is the structural block diagram of daily record data save set provided in an embodiment of the present invention, and daily record data save set is answered
For the first earphone and the second earphone in TWS earphone, can specifically include：
Daily record data generation module 100, for first earphone and the running status information of the second earphone
It is recorded respectively, generates daily record data；
Memory module 200, for saving the daily record data into preset flash memory space, first ear
Machine and the corresponding default flash memory space of second earphone are respectively used to store corresponding daily record data.
Optionally, the memory module includes：
First storage unit, for storing the mark data of the daily record data to the of the flash memory space
One storage region；
Second storage unit, for storing the specific data of the daily record data to the of the flash memory space
Two storage regions.
Optionally, daily record data save set provided by the present invention further includes：
Export module, for it is described the daily record data is saved into preset flash memory space after, pass through
The mode of bluetooth exports the daily record data, to parse the daily record data
The daily record data save set of the present embodiment is for realizing daily record data store method above-mentioned, therefore daily record data
The embodiment part of the visible daily record data store method hereinbefore of specific embodiment in save set, for example, log number
According to generation module 100, memory module 200 is respectively used to realize step S101, S102, institute in above-mentioned daily record data store method
With specific embodiment is referred to the description of corresponding various pieces embodiment, and details are not described herein.
Present invention also provides a kind of TWS earphone, the TWS earphone includes the first earphone and the second ear being arranged in pairs
Machine is provided with first control unit in first earphone, is provided with the second control unit in second earphone；
The first control unit generates log number for recording to the running status information of the first earphone
According to；And the daily record data is saved into preset flash memory space corresponding with first earphone；
Second control unit generates log number for recording to the running status information of the second earphone
According to；And the daily record data is saved into preset flash memory space corresponding with second earphone.
Wherein, first earphone and second earphone are according to predetermined period progress time synchronization.
The TWS earphone of the present embodiment is for realizing daily record data store method above-mentioned, therefore the specific reality in TWS earphone
The embodiment part of the visible daily record data store method hereinbefore of mode is applied, details are not described herein.
The application generates log number by recording respectively to the first earphone and the running status information of the second earphone
According to；Daily record data is saved into preset flash memory space, the first earphone and the corresponding default flash of the second earphone are deposited
Storage space is respectively used to store corresponding daily record data.The application believes the running state of earphone by way of log
Breath is saved, and ensure that the complete of traceback information.When occurring connecting unstable, system crash or other problems, Neng Goutong
The status information that the daily record data saved rapidly and accurately knows operation is crossed, running problem is quickly positioned, so as to
It is further processed.Also, flash resource can also be saved, information retrieval is quickly carried out, facilitates export and checks.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, same or similar part may refer to each other between each embodiment.For being filled disclosed in embodiment
For setting, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part
Explanation.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Daily record data store method provided by the present invention, device and TWS earphone are described in detail above.This
Apply that a specific example illustrates the principle and implementation of the invention in text, the explanation of above example is only intended to
It facilitates the understanding of the method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principles of the invention, can be with several improvements and modifications are made to the present invention, these improvement and modification are also fallen
Enter in the protection scope of the claims in the present invention.
Claims (10)
1. a kind of daily record data store method, applied to the first earphone and the second earphone in TWS earphone, which is characterized in that
The method includes：
First earphone and the running status information of the second earphone are recorded respectively, generate daily record data；
The daily record data is saved into preset flash memory space, first earphone and second earphone are corresponding
Default flash memory space be respectively used to store corresponding daily record data.
2. daily record data store method as described in claim 1, which is characterized in that further include：First earphone with it is described
Second earphone carries out time synchronization according to predetermined period.
3. daily record data store method as described in claim 1, which is characterized in that described to save the daily record data to pre-
If flash memory space in include：
The mark data of the daily record data is stored to the first storage region of the flash memory space；
The specific data of the daily record data are stored to the second storage region of the flash memory space.
4. daily record data store method as claimed in claim 3, which is characterized in that described to save the daily record data to pre-
If flash memory space in include：
Daily record data currently to be stored and last stored daily record data carry out continuously in second storage region
Storage；
It is stored using the corresponding storage initial address of the daily record data stored and storage end address as the mark data
To first storage region.
5. daily record data store method as claimed in claim 4, which is characterized in that it is described by the daily record data save to
Further include after in preset flash memory space：
When retrieving to the daily record data, corresponding storage starting point is determined according to the mark data of the daily record data
Location and storage end address；
According to the storage initial address and storage end address, obtains and retrieve from the storage location of second storage region
As a result.
6. such as daily record data store method described in any one of claim 1 to 5, which is characterized in that described by the log
Data are saved into preset flash memory space further includes later：
The daily record data is exported by way of bluetooth, to parse the daily record data.
7. a kind of daily record data save set, applied to the first earphone and the second earphone in TWS earphone, which is characterized in that
Described device includes：
Daily record data generation module, for being carried out respectively to first earphone and the running status information of the second earphone
Record generates daily record data；
Memory module, for saving the daily record data into preset flash memory space, first earphone and described
The corresponding default flash memory space of second earphone is respectively used to store corresponding daily record data.
8. daily record data save set as claimed in claim 7, which is characterized in that the memory module includes：
First storage unit, first for storing the mark data of the daily record data to the flash memory space deposits
Storage area domain；
Second storage unit, second for storing the specific data of the daily record data to the flash memory space deposits
Storage area domain.
9. a kind of TWS earphone, the TWS earphone includes the first earphone and the second earphone being arranged in pairs, which is characterized in that institute
It states and is provided with first control unit in the first earphone, be provided with the second control unit in second earphone；
The first control unit generates daily record data for recording to the running status information of the first earphone；
And the daily record data is saved into preset flash memory space corresponding with first earphone；
Second control unit generates daily record data for recording to the running status information of the second earphone；
And the daily record data is saved into preset flash memory space corresponding with second earphone.
10. TWS earphone as claimed in claim 9, which is characterized in that first earphone and second earphone are according to default
Period carries out time synchronization.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111182147A (en) * | 2019-12-30 | 2020-05-19 | Oppo广东移动通信有限公司 | Terminal comprising multiple types of earphone interfaces, terminal control method and device |
| CN113568872A (en) * | 2021-07-28 | 2021-10-29 | 歌尔科技有限公司 | TWS equipment and log saving and reading method, device and medium thereof |
| CN114339574A (en) * | 2021-12-29 | 2022-04-12 | 锐迪科创微电子（北京）有限公司 | Earphone operation method and device and electronic equipment |
| CN115776628A (en) * | 2023-02-13 | 2023-03-10 | 成都市安比科技有限公司 | Method for accurate synchronization of double-ear recording of TWS (two way communication system) Bluetooth headset |
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Application publication date: 20181130 |