CN110199535A - The blue-tooth device of multiple terminals can be connected simultaneously - Google Patents
The blue-tooth device of multiple terminals can be connected simultaneously Download PDFInfo
- Publication number
- CN110199535A CN110199535A CN201880007590.7A CN201880007590A CN110199535A CN 110199535 A CN110199535 A CN 110199535A CN 201880007590 A CN201880007590 A CN 201880007590A CN 110199535 A CN110199535 A CN 110199535A
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- bluetooth chip
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- frequency signal
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- 230000005236 sound signal Effects 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 241001062009 Indigofera Species 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Abstract
A kind of blue-tooth device that can connect multiple terminals simultaneously, including antenna, Bluetooth chip, input/output module, wherein Bluetooth chip include main Bluetooth chip and at least one from Bluetooth chip；Antenna is used to receive the radio frequency signal of terminal sending, radio frequency signal carried terminal mark, and terminal iidentification is sent to main Bluetooth chip；Main Bluetooth chip for receiving terminal iidentification, and for search with terminal iidentification counterpart terminal matched target Bluetooth chip in advance, establish the data channel between antenna and target Bluetooth chip, the target Bluetooth chip is main Bluetooth chip and/or from Bluetooth chip；Main Bluetooth chip and the radio frequency signal for being used to receive from antenna by data channel and its preparatory reflexless terminal issues from Bluetooth chip, are converted to audio signal for radio frequency signal and are output to input/output module.The present invention can be achieved while connect multiple user terminals, using upper more flexible, bring advantage to the user.
Description
Technical field
This application involves Bluetooth technology fields, and in particular to one kind can connect the blue-tooth device of multiple terminals simultaneously.
Background technique
Existing bluetooth equipment (such as bluetooth headset, Baffle Box of Bluetooth) is designed and developed by the Bluetooth protocol for being then based on confidentiality
, when being connect with terminal (such as mobile phone, tablet computer), one-to-one matching connection can only be carried out, realize one-to-one audio
Transmission.As Bluetooth transmission is in the fast development of audio industry and popularizing for internet terminal equipment, so that bluetooth is led in audio
Domain, the demand that user connects a Bluetooth audio frequency device multiple terminals simultaneously are more and more stronger.
Summary of the invention
The application provides a kind of blue-tooth device that can connect multiple terminals simultaneously.
According in a first aspect, providing a kind of blue-tooth device that can connect multiple terminals simultaneously, including day in a kind of embodiment
Line, Bluetooth chip, input/output module, wherein Bluetooth chip include main Bluetooth chip and at least one from Bluetooth chip；Antenna
For receiving the radio frequency signal of terminal sending, radio frequency signal carried terminal mark, and terminal iidentification is sent to master
Bluetooth chip；Main Bluetooth chip is used for lookup and terminal iidentification counterpart terminal matched mesh in advance for receiving terminal iidentification
Bluetooth chip to be marked, the data channel between antenna and target Bluetooth chip is established, data channel is used for transmission radio frequency signal,
Terminal corresponding to the terminal iidentification that the radio frequency signal carries matches in advance with target Bluetooth chip, the target Bluetooth core
Piece is main Bluetooth chip and/or from Bluetooth chip；It main Bluetooth chip and is used for through data channel from Bluetooth chip from antenna
The radio frequency signal issued with its preparatory reflexless terminal is received, radio frequency signal is converted into audio signal and is output to defeated
Enter output module；Input/output module is used for the audio signal for receiving main Bluetooth chip and/or exporting from Bluetooth chip, to audio
Signal amplifies output.
Preferably, the main Bluetooth chip, which is also used to work as from Bluetooth chip, does not receive less radio-frequency within the preset time
This is switched to dormant state from Bluetooth chip from standby mode by signal, main Bluetooth chip.
Preferably, the main Bluetooth chip is also used to work as from Bluetooth chip in a dormant state, and main Bluetooth chip receives
When to the terminal iidentification from the preparatory reflexless terminal of Bluetooth chip, main Bluetooth chip cuts this from Bluetooth chip from dormant state
Change to standby mode.
It preferably, further include the first switching control module, the first switching control module is connected to antenna and each bluetooth core
Between piece, for controlling the on-off of the data channel between antenna and each Bluetooth chip.
Preferably, further include the second switching control module, the second switching control module be connected to each Bluetooth chip with it is defeated
Enter between output module, for controlling the on-off of data channel between each Bluetooth chip and input/output module.
Preferably, when antenna receives posterior radio frequency signal, the first switching control module closes antenna and formerly
The terminal iidentification counterpart terminal data channel between matched target Bluetooth chip in advance in radio frequency signal, and connect antenna
With the data channel between terminal iidentification counterpart terminal in rear radio frequency signal in advance matched target Bluetooth chip.
According to the blue-tooth device that can connect multiple terminals simultaneously of above-described embodiment, due to including main Bluetooth chip and at least
One from Bluetooth chip, each Bluetooth chip can be received from antenna by data channel to be issued with its preparatory reflexless terminal
Radio frequency signal using upper more flexible, is brought to user so that a blue-tooth device can connect multiple user terminals simultaneously
It is convenient.The present invention does not change the versatility that universal blue tooth agreement had not only guaranteed bluetooth connection, but also the agreement limitation broken through realizes
One connects more functions.Further, it by common antenna and input/output module, can also be needed according to user to from Bluetooth chip
Quantity be adjusted, to control cost.
Detailed description of the invention
Fig. 1 is an implementation principle block diagram of the invention；
Fig. 2 is another implementation principle block diagram of the present invention.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.Wherein different embodiments
Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can recognize without lifting an eyebrow, part of feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant it is some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
Relevant operation can be completely understood according to the general technology knowledge of description and this field in specification.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
General thought of the invention is: by the way of in parallel, by the more single-passes such as main Bluetooth chip and time Bluetooth chip
Road Bluetooth chip integrates, and each bluetooth chips work independently, and each Bluetooth chip is responsible for and a terminal device
(such as: mobile phone, plate) is attached and transmits, and does not interfere with each other.
Embodiment one:
Referring to FIG. 1, the blue-tooth device 10 (such as: Baffle Box of Bluetooth, bluetooth headset) of multiple terminals, including day can be connected simultaneously
Line 1, main Bluetooth chip 2, from Bluetooth chip 3, from Bluetooth chip 4 and input/output module 5, antenna 1 for receive it is external eventually
The radio frequency signal of (such as: mobile phone, plate) sending is held, carried terminal mark in radio frequency signal, and terminal iidentification is sent out
It send to main Bluetooth chip 2；
Main Bluetooth chip 2 is used for lookup and terminal iidentification counterpart terminal matched mesh in advance for receiving terminal iidentification
Bluetooth chip is marked, establishes the data channel between antenna and target Bluetooth chip, each data channel, which is used for transmission, wirelessly penetrates
Frequency signal, the radio frequency signal carry terminal iidentification corresponding to terminal matched in advance with target Bluetooth chip, the mesh
Marking Bluetooth chip is main Bluetooth chip and/or from Bluetooth chip；
It main Bluetooth chip and is used to receive from antenna by data channel and its preparatory reflexless terminal hair from Bluetooth chip
Radio frequency signal is converted to audio signal and is output to input/output module by radio frequency signal out；
Input/output module is used for the audio signal for receiving main Bluetooth chip and/or exporting from Bluetooth chip, believes audio
Number amplify output.
Working principle explanation:
If the blue-tooth device 10 of figure will connect mobile phone 6, mobile phone 7, plate 8, before proceeding in advance by mobile phone and plate
Matched with each Bluetooth chip of blue-tooth device 10, it is assumed that mobile phone 6 is matched with main Bluetooth chip 2 in advance, mobile phone 7 in advance with
It is matched from Bluetooth chip 3, plate 8 is matched with from Bluetooth chip 4 in advance.
When mobile phone 6 sends radio frequency signal to the antenna 1 of blue-tooth device 10, this radio frequency signal can carry representative
This terminal iidentification is sent to main Bluetooth chip 2 by the terminal iidentification of mobile phone 6, antenna, and main Bluetooth chip is looked into according to terminal iidentification
Look for the matched target Bluetooth chip of terminal iidentification counterpart terminal, because it is matched with mobile phone 6 be main Bluetooth chip 2, therefore target
Bluetooth chip refers to main Bluetooth chip 2, at this moment establishes the data channel between antenna 1 and main Bluetooth chip 2, and it is logical to establish data
Behind road, the radio frequency signal that mobile phone 6 is sent is sent to main Bluetooth chip 2, main Bluetooth chip 2 by data channel by antenna 1
Radio frequency signal is received, radio frequency signal is converted into audio signal and is output to input/output module 5；Input and output mould
Block 5 receives the audio signal that main Bluetooth chip 2 exports, and amplifies broadcasting to audio signal.
When the antenna 1 of all oriented blue-tooth device 10 of mobile phone 6, mobile phone 7, plate 8 sends radio frequency signal, three differences
Radio frequency signal in carry represent the terminal iidentification of mobile phone 6, mobile phone 7, plate 8 respectively；Antenna sends out these terminal iidentifications
Main Bluetooth chip 2 is given, main Bluetooth chip 2 is searched and the matched mesh of terminal iidentification counterpart terminal respectively according to above-mentioned terminal iidentification
Bluetooth chip is marked, main Bluetooth chip 2, is target Bluetooth chip from Bluetooth chip 3, from Bluetooth chip 4, establishes day respectively at this time
Line 1 arrives the data channel of main Bluetooth chip 2, establishes antenna 1 to the data channel from Bluetooth chip 3, establishes antenna 1 and arrive from bluetooth
The data channel of chip 4, the data channel of antenna 1 to main Bluetooth chip 2 are used to transmit and the matched mobile phone 6 of main Bluetooth chip 2
The radio frequency signal (i.e. the radio frequency signal of the mark of carrying mobile phone 6) sent, antenna 1 arrives logical from the data of Bluetooth chip 3
(what i.e. carrying mobile phone 7 identified wirelessly penetrates the radio frequency signal that road is used to transmit with send from the matched mobile phone 7 of Bluetooth chip 3
Frequency signal), antenna 1 to the nothing for being used to transmit with send from the matched plate 8 of Bluetooth chip 4 from the data channel of Bluetooth chip 4
Line radiofrequency signal (i.e. the radio frequency signal of carrying plate 8 mark)；Main Bluetooth chip 2 is connect from antenna 1 by data channel
The radio frequency signal that mobile phone 6 issues is received, and radio frequency signal is converted into audio signal and is output to input/output module
5；The radio frequency signal that mobile phone 7 issues is received from antenna 1 from Bluetooth chip 2 by data channel, and less radio-frequency is believed
It number is converted to audio signal and is output to input/output module 5；It is received and is put down from antenna 1 by data channel from Bluetooth chip 3
The radio frequency signal that plate 8 issues, and radio frequency signal is converted into audio signal and is output to input/output module 5；It is defeated
Enter output module 5 and receive main Bluetooth chip 2, from Bluetooth chip 3, from Bluetooth chip 4 export audio signal, to audio signal into
Row amplification is output to loudspeaker.
As the more preferable scheme of the present embodiment, main Bluetooth chip be also used to when from Bluetooth chip within the preset time not
Radio frequency signal is received, this is switched to dormant state from Bluetooth chip from standby mode, to save electricity, extends continuation of the journey
Time.
As the more preferable scheme of the present embodiment, main Bluetooth chip is also used to work as from Bluetooth chip in a dormant state, and
Main Bluetooth chip receive with should be from the terminal iidentification of the preparatory reflexless terminal of Bluetooth chip when, by this from Bluetooth chip from suspend mode shape
State is switched to standby mode.
It further include the first switching control module, the connection of the first switching control module as the more preferable scheme of the present embodiment
Between antenna and each Bluetooth chip, for controlling the on-off of the data channel between antenna and each Bluetooth chip.
It further include the second switching control module, the connection of the second switching control module as the more preferable scheme of the present embodiment
It is logical for controlling data between input/output module and each Bluetooth chip between input/output module and each Bluetooth chip
The on-off in road.
As the more preferable scheme of the present embodiment, when antenna receives posterior radio frequency signal, the first switching control
Module closes in antenna and first radio frequency signal terminal iidentification counterpart terminal in advance between matched target Bluetooth chip
Data channel, and connect antenna and the terminal iidentification counterpart terminal matched target Bluetooth chip in advance in rear radio frequency signal
Between data channel.Such as: when the radio frequency signal that antenna is formerly sent to main 2 transmitting cell-phone 6 of Bluetooth chip, antenna
Receive that mobile phone 7 sends again in rear radio frequency signal, then the first switching control module closes antenna 1 and main Bluetooth chip 2
Between data channel, and connect antenna 1 and from the data channel between Bluetooth chip 2, be used to transmit hand to from Bluetooth chip
Machine 7 send in rear radio frequency signal.
Embodiment two:
Referring to FIG. 2, the blue-tooth device 10 of multiple terminals can be connected simultaneously, including antenna 1, the first switching control module 2,
Main Bluetooth chip, it is N number of from Bluetooth chip, the second switching control module 3 and input/output module 4, antenna, main Bluetooth chip,
From Bluetooth chip, the effect of input/output module and identical as blue-tooth device shown in embodiment one, the different ground of working principle
Side be, the slave Bluetooth chip quantity of the present embodiment is different from the quantity of embodiment one, but it is increased from Bluetooth chip quantity not
It will affect the working principle of hardware, in addition embodiment adds the first switching control module and the second switching control module,
One switching control module is connected between antenna and each Bluetooth chip, for controlling the number between antenna and each Bluetooth chip
According to the on-off in channel.Second switching control module is connected between input/output module and each Bluetooth chip, defeated for controlling
Enter the on-off of data channel between output module and each Bluetooth chip.Embodiment two illustrates that the application can be according to user's
Actual needs, is adjusted the quantity of secondary Bluetooth chip, achievees the purpose that save cost.
In a wherein embodiment, the first switching control module can not carry out shutdown control to the radio frequency signal of access
All radio frequency chips, are directly forwarded in the corresponding Bluetooth chip of signal, in another embodiment, work as antenna by system
Posterior radio frequency signal is received, the first switching control module closes terminal iidentification in antenna and first radio frequency signal
The counterpart terminal data channel between matched target Bluetooth chip in advance, and connect antenna in rear radio frequency signal eventually
The end mark counterpart terminal data channel between matched target Bluetooth chip in advance.
Equally, in a wherein embodiment, the second switching control module can not be to the audio signal of Bluetooth chip output
Shutdown control is carried out, all audio signals are directly output to input/output module.
In addition, when terminal device quantity changes, work that the first switching control module can as needed to secondary Bluetooth chip
It is controlled as state.When increasing such as terminal device, new slave Bluetooth chip is enabled by the first switching control module, the company of realization
Connect greater number terminal.
It should be noted that the quantity M of terminal is less than or is equal to N+1 in the blue-tooth device using two illustrated embodiment of figure
The quantity of a Bluetooth chip.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (6)
1. the blue-tooth device that one kind can connect multiple terminals simultaneously, which is characterized in that including antenna, Bluetooth chip, input and output
Module, wherein Bluetooth chip include main Bluetooth chip and at least one from Bluetooth chip；
Antenna is used to receive the radio frequency signal of terminal sending, radio frequency signal carried terminal mark, and by terminal iidentification
It is sent to main Bluetooth chip；
Main Bluetooth chip is used for lookup and terminal iidentification counterpart terminal matched target Bluetooth in advance for receiving terminal iidentification
Chip establishes the data channel between antenna and target Bluetooth chip, and data channel is used for transmission radio frequency signal, this is wireless
Terminal corresponding to the terminal iidentification that radiofrequency signal carries matches in advance with target Bluetooth chip, based on the target Bluetooth chip
Bluetooth chip and/or from Bluetooth chip；
It main Bluetooth chip and is used to receive from antenna by data channel and its preparatory reflexless terminal sending from Bluetooth chip
Radio frequency signal is converted to audio signal and is output to input/output module by radio frequency signal；
Input/output module be used for receive main Bluetooth chip and/or from Bluetooth chip export audio signal, to audio signal into
Row amplification output.
2. the blue-tooth device of multiple terminals can be connected simultaneously as described in claim 1, which is characterized in that the main Bluetooth chip
It is also used to when not receiving radio frequency signal within the preset time from Bluetooth chip, main Bluetooth chip should be from Bluetooth chip
Dormant state is switched to from standby mode.
3. the blue-tooth device of multiple terminals can be connected simultaneously as described in claim 1, which is characterized in that the main Bluetooth chip
It is also used to work as from Bluetooth chip in a dormant state, and main Bluetooth chip is received and is somebody's turn to do from the preparatory reflexless terminal of Bluetooth chip
When terminal iidentification, this is switched to standby mode from Bluetooth chip from dormant state by main Bluetooth chip.
4. the blue-tooth device of multiple terminals can be connected simultaneously as described in claim 1, which is characterized in that further include the first switching
Control module, the first switching control module is connected between antenna and each Bluetooth chip, for controlling antenna and each bluetooth
The on-off of data channel between chip.
5. the blue-tooth device of multiple terminals can be connected simultaneously as described in claim 1, which is characterized in that further include the second switching
Control module, the second switching control module is connected between each Bluetooth chip and input/output module, for controlling each indigo plant
The on-off of data channel between tooth chip and input/output module.
6. the blue-tooth device of multiple terminals can be connected simultaneously as claimed in claim 4, which is characterized in that when antenna receives
Radio frequency signal afterwards, the first switching control module close terminal iidentification counterpart terminal in antenna and first radio frequency signal
Data channel between preparatory matched target Bluetooth chip, and connect antenna and the terminal iidentification pair in rear radio frequency signal
Answer data channel of the terminal in advance between matched target Bluetooth chip.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/082567 WO2019196018A1 (en) | 2018-04-10 | 2018-04-10 | Bluetooth device capable of simultaneously connecting to multiple terminals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110199535A true CN110199535A (en) | 2019-09-03 |
| CN110199535B CN110199535B (en) | 2021-12-28 |
Family
ID=67751197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880007590.7A Active CN110199535B (en) | 2018-04-10 | 2018-04-10 | Bluetooth device capable of connecting multiple terminals simultaneously |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110199535B (en) |
| WO (1) | WO2019196018A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110995324A (en) * | 2019-12-16 | 2020-04-10 | Tcl移动通信科技（宁波）有限公司 | Bluetooth communication method, device, storage medium and terminal equipment |
| CN112804667A (en) * | 2019-11-13 | 2021-05-14 | 络达科技股份有限公司 | Wireless Bluetooth audio output system and control method thereof |
| CN112866969A (en) * | 2021-03-09 | 2021-05-28 | 浙江一通电子科技有限公司 | Bluetooth connection method and connection system for multi-frequency conversion control of tower crane |
| CN113411796A (en) * | 2021-06-30 | 2021-09-17 | 雅迪科技集团有限公司 | Audio transmission system, method and storage medium for group-by-group Bluetooth device |
| CN115442781A (en) * | 2022-05-31 | 2022-12-06 | 北京罗克维尔斯科技有限公司 | Multi-Bluetooth driving method, device, equipment, medium and vehicle |
| WO2023035918A1 (en) * | 2021-09-08 | 2023-03-16 | Oppo广东移动通信有限公司 | Audio playing control method and apparatus, and audio output device and storage medium |
| CN116761110A (en) * | 2023-08-18 | 2023-09-15 | 江西斐耳科技有限公司 | Multi-point bluetooth headset control method, system, storage medium and equipment |
| CN118158650A (en) * | 2024-05-08 | 2024-06-07 | 源柏(成都)科技有限公司 | Polling communication method, device, equipment and medium of low-power consumption Bluetooth equipment |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111436038B (en) * | 2019-10-23 | 2023-05-05 | 珠海市杰理科技股份有限公司 | Bluetooth connection method and system, bluetooth master and slave device connection method and Bluetooth master and slave devices |
| CN110996305B (en) * | 2019-11-12 | 2024-01-05 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for connecting Bluetooth equipment, electronic equipment and medium |
| CN112601204B (en) * | 2020-12-11 | 2023-08-01 | 宜通世纪物联网研究院(广州)有限公司 | Data acquisition gateway of multichannel Bluetooth equipment and implementation method thereof |
| CN113543101B (en) * | 2021-07-09 | 2024-07-16 | Oppo广东移动通信有限公司 | Audio output method, bluetooth device, mobile terminal and storage medium |
| CN115865140A (en) * | 2021-09-24 | 2023-03-28 | Oppo广东移动通信有限公司 | Call control method and device, electronic equipment and computer readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112804667A (en) * | 2019-11-13 | 2021-05-14 | 络达科技股份有限公司 | Wireless Bluetooth audio output system and control method thereof |
| CN110995324A (en) * | 2019-12-16 | 2020-04-10 | Tcl移动通信科技（宁波）有限公司 | Bluetooth communication method, device, storage medium and terminal equipment |
| CN110995324B (en) * | 2019-12-16 | 2021-09-28 | Tcl移动通信科技（宁波）有限公司 | Bluetooth communication method, device, storage medium and terminal equipment |
| CN112866969A (en) * | 2021-03-09 | 2021-05-28 | 浙江一通电子科技有限公司 | Bluetooth connection method and connection system for multi-frequency conversion control of tower crane |
| CN112866969B (en) * | 2021-03-09 | 2024-05-31 | 浙江恒邦电气科技有限公司 | Bluetooth connection method and connection system for multi-conversion control of tower crane |
| CN113411796A (en) * | 2021-06-30 | 2021-09-17 | 雅迪科技集团有限公司 | Audio transmission system, method and storage medium for group-by-group Bluetooth device |
| WO2023035918A1 (en) * | 2021-09-08 | 2023-03-16 | Oppo广东移动通信有限公司 | Audio playing control method and apparatus, and audio output device and storage medium |
| CN115442781A (en) * | 2022-05-31 | 2022-12-06 | 北京罗克维尔斯科技有限公司 | Multi-Bluetooth driving method, device, equipment, medium and vehicle |
| CN116761110A (en) * | 2023-08-18 | 2023-09-15 | 江西斐耳科技有限公司 | Multi-point bluetooth headset control method, system, storage medium and equipment |
| CN116761110B (en) * | 2023-08-18 | 2023-11-14 | 江西斐耳科技有限公司 | Multi-point bluetooth headset control method, system, storage medium and equipment |
| CN118158650A (en) * | 2024-05-08 | 2024-06-07 | 源柏(成都)科技有限公司 | Polling communication method, device, equipment and medium of low-power consumption Bluetooth equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110199535B (en) | 2021-12-28 |
| WO2019196018A1 (en) | 2019-10-17 |
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