CN113225719A - Method, system and device for improving tone quality by connecting multiple terminals through Bluetooth of vehicle machine - Google Patents
Method, system and device for improving tone quality by connecting multiple terminals through Bluetooth of vehicle machine Download PDFInfo
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- CN113225719A CN113225719A CN202110489000.2A CN202110489000A CN113225719A CN 113225719 A CN113225719 A CN 113225719A CN 202110489000 A CN202110489000 A CN 202110489000A CN 113225719 A CN113225719 A CN 113225719A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 58
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 3
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- 230000003068 static effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/25—Maintenance of established connections
Abstract
The invention provides a method, a system and a device for improving tone quality by multi-terminal connection Bluetooth based on a vehicle Bluetooth module, which are characterized in that the method, the system and the device are applied to a vehicle and comprise the following steps: the vehicle machine is independently connected with the first electronic device, the second electronic device and the Bluetooth headset through the Bluetooth module respectively; the vehicle machine plays the music in the vehicle machine through the Bluetooth headset, and the vehicle machine keeps establishing Bluetooth call transmission connection or Bluetooth music connection with any one of the first electronic equipment and the second electronic equipment at the same time according to the priority. The priority of the Bluetooth communication transmission connection established between the vehicle and the first electronic equipment or between the vehicle and the second electronic equipment is higher than that of the Bluetooth music connection. According to the invention, only two Bluetooth transmission channels are occupied all the time, so that the tone quality of the Bluetooth playing music or calling is effectively improved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted Bluetooth, in particular to a method, a system and a device for improving tone quality by connecting a vehicle-mounted Bluetooth with multiple terminals.
Background
Bluetooth is one of the main ways of near field communication in vehicle systems as a standard wireless communication protocol. However, if a plurality of bluetooth devices transmit a large amount of data at the same time, retransmission and packet loss are likely to occur, and the direct influence is that audio jamming affects listening effects. In order to ensure the sound quality, most vehicle-mounted systems can only limit the number of connected Bluetooth devices or abandon corresponding functions.
Disclosure of Invention
In view of this, the present invention provides a method, a system and a device for improving sound quality by connecting a car-mounted bluetooth to multiple terminals, which can ensure that an earphone can listen to any audio in a car-mounted bluetooth headset on the basis of simultaneous connection of two mobile phones and the bluetooth headset, and simultaneously, a user can also play bluetooth music or listen to bluetooth calls through the car-mounted bluetooth headset.
In order to solve the technical problems, the invention adopts the following technical scheme:
the method for improving the tone quality by connecting the vehicle machine with the multiple terminals through the Bluetooth is applied to a vehicle machine, and comprises the following steps:
the vehicle machine is independently connected with the first electronic device, the second electronic device and the Bluetooth headset through the Bluetooth module;
the car machine plays the music in the car machine through the bluetooth headset, and,
and the vehicle machine keeps establishing Bluetooth communication transmission connection or Bluetooth music connection with any one of the first electronic equipment and the second electronic equipment in the same time according to the priority.
The priority of the Bluetooth communication transmission connection between the vehicle and the first electronic equipment or the second electronic equipment is higher than that of the Bluetooth music connection.
Further, the car machine passes through bluetooth module and independently connects with first electronic equipment, second electronic equipment and bluetooth headset respectively, includes:
the vehicle machine establishes Bluetooth call control connection with the first electronic device and the second electronic device, and establishes music transmission connection with the Bluetooth headset.
Further, the car machine keeps establishing a bluetooth communication transmission connection or a bluetooth music connection with any one of the first electronic device or the second electronic device at the same time according to the priority, including:
when the first electronic equipment dials or accesses a telephone, the vehicle-mounted device determines that the second electronic equipment is in a non-call state and the second electronic equipment is in a music non-play state, and then the vehicle-mounted device establishes Bluetooth call transmission connection with the first electronic equipment.
Further, the car machine keeps establishing a bluetooth communication transmission connection or a bluetooth music connection with any one of the first electronic device or the second electronic device at the same time according to the priority, and the method further comprises:
when the first electronic equipment dials or accesses a telephone, the vehicle-mounted device determines that the second electronic equipment is in a non-call state and the second electronic equipment is in a music playing state, and the vehicle-mounted device cuts off Bluetooth music connection with the second electronic equipment and establishes Bluetooth call transmission connection with the first electronic equipment.
And after the first electronic equipment finishes the conversation, the car machine and the second electronic equipment recover the Bluetooth music connection.
Further, the car machine keeps establishing a bluetooth communication transmission connection or a bluetooth music connection with any one of the first electronic device or the second electronic device at the same time according to the priority, and the method further comprises:
when the first electronic equipment dials or accesses a telephone, the vehicle-mounted device determines that the second electronic equipment is in a conversation state, and the vehicle-mounted device refuses to establish Bluetooth conversation transmission connection with the first electronic equipment.
Further, the car machine keeps establishing a bluetooth communication transmission connection or a bluetooth music connection with any one of the first electronic device or the second electronic device at the same time according to the priority, and the method further comprises:
when the first electronic equipment is in a call, the vehicle-mounted device refuses to establish Bluetooth call transmission connection with the second electronic equipment.
Further, the car machine keeps establishing a bluetooth communication transmission connection or a bluetooth music connection with any one of the first electronic device or the second electronic device at the same time according to the priority, and the method further comprises:
when the first electronic equipment plays music through the car machine, the car machine determines that the second electronic equipment is in a conversation state, and then the car machine refuses to establish Bluetooth music connection with the first electronic equipment.
Still further, still include: when the first electronic equipment plays music through the car machine, the car machine determines that the second electronic equipment is in a non-conversation state, and the second electronic equipment is in a music non-playing state, and the car machine establishes Bluetooth music connection with the first electronic equipment.
Still further, still include: when the first electronic equipment plays music through the car machine, the car machine determines that the second electronic equipment is in a non-conversation state and the second electronic equipment is in a music playing state, and then the car machine cuts off Bluetooth music connection with the second electronic equipment and establishes Bluetooth music connection with the first electronic equipment.
An embodiment of the present invention provides a system for improving sound quality by connecting multiple terminals to a vehicle bluetooth, including: the system comprises a vehicle machine, a first electronic device, a second electronic device and a Bluetooth headset, wherein the first electronic device, the second electronic device and the Bluetooth headset are independently connected with the vehicle machine;
the vehicle machine is used for respectively controlling the Bluetooth audio transmission of the first electronic equipment, the second electronic equipment and the Bluetooth earphone;
the vehicle machine is used for keeping the Bluetooth communication transmission connection or the Bluetooth music control transmission connection with any one of the first electronic equipment and the second electronic equipment in the same time according to the priority;
the priority of the Bluetooth communication transmission connection between the vehicle and the first electronic equipment or the second electronic equipment is higher than that of the Bluetooth music connection.
Furthermore, the car machine establishes Bluetooth call control connection with the first electronic device and the second electronic device, and establishes Bluetooth music connection with the Bluetooth headset.
Another embodiment of the present invention provides an electronic device for improving sound quality by connecting multiple terminals to a vehicle via bluetooth, which is used for being independently connected to a first electronic device, a second electronic device, and a bluetooth headset, and includes:
the Bluetooth playing module is used for playing music in the vehicle machine through a Bluetooth headset;
the connection module is used for keeping the Bluetooth communication transmission connection or the Bluetooth music connection with any one of the first electronic equipment and the second electronic equipment at the same time according to the priority, and the Bluetooth playing module keeps the playing state of the music;
the priority of the connection module establishing Bluetooth communication transmission connection with the first electronic equipment or the second electronic equipment is higher than that of establishing the Bluetooth music connection.
The technical scheme of the invention at least has one of the following beneficial effects:
1. according to the method provided by the embodiment of the invention, when the car machine plays music in the car through the Bluetooth headset and is connected with a plurality of communication devices, only one device is kept for audio transmission, so that the audio transmission is controlled within the allowable range of Bluetooth bandwidth, and the Bluetooth tone quality is effectively ensured;
2. the method of the embodiment of the invention is realized only by software, does not increase the hardware cost, is suitable for various vehicle-mounted entertainment systems and mobile phone systems, and is convenient to popularize.
Drawings
Fig. 1 is a system architecture diagram of a car machine bluetooth connection multi-terminal sound quality improvement according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for improving tone quality by connecting a vehicle bluetooth to multiple terminals according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a first electronic device dialing or answering a call in a method for improving tone quality by connecting a vehicle-mounted device and a multi-terminal through bluetooth according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a first electronic device playing music through a vehicle in a method for improving sound quality by connecting a vehicle bluetooth to multiple terminals according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a system for improving sound quality by connecting a vehicle bluetooth to multiple terminals according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device for improving sound quality by connecting a vehicle bluetooth to multiple terminals according to an embodiment of the present invention;
fig. 7 is a block diagram of an SoC for improving sound quality by connecting multiple terminals with bluetooth of a vehicle machine according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the prior art, if a plurality of bluetooth devices transmit a large amount of data at the same time, retransmission and packet loss are likely to be caused, and the direct influence is that the audio is blocked, which affects the listening effect. The method for improving the tone quality by the vehicle-mounted machine connected with the multiple terminals through the Bluetooth is adopted, when the vehicle-mounted machine plays music in the vehicle through the Bluetooth headset and is connected with the multiple communication devices, only one device is kept to carry out audio transmission, so that the audio transmission is controlled within the allowed range of the Bluetooth bandwidth, and the Bluetooth tone quality is effectively ensured.
Referring to fig. 1, fig. 1 is a system architecture diagram of a bluetooth-enabled vehicle connected to multiple terminals for improving sound quality, and as shown in fig. 1, the system architecture diagram includes a mobile phone 110 (as a first electronic device), a mobile phone 120 (as a second electronic device), a bluetooth headset 130, and a vehicle 100.
The in-vehicle device 100 is independently connected to the mobile phone 110, the mobile phone 120, and the bluetooth headset 130 through the bluetooth module, specifically, the in-vehicle device 100 establishes a music transmission connection with the bluetooth headset 130 for playing music stored in the in-vehicle device.
In addition, the car machine can establish call control connection with the mobile phone 110 and the mobile phone 120 respectively for controlling operations such as answering, hanging up, voice dialing and the like of the bluetooth phone, so that a driver can control a call by clicking a car machine screen or a voice control mode, thereby simplifying a flow and improving driving safety.
When a call or music playing through the car machine 100 is required, the car machine 100 establishes a call transmission connection or a bluetooth music connection with any one of the mobile phone 110 and the mobile phone 120. Wherein, the conversation transmission connection priority is higher than the Bluetooth music connection.
The method for improving the sound quality by connecting the multiple terminals through the bluetooth of the vehicle machine according to the embodiment of the invention is described in detail with reference to fig. 2.
The method for improving the tone quality by connecting the vehicle machine with the multiple terminals through the Bluetooth is applied to the vehicle machine.
As shown in fig. 2, a flowchart of a method for improving sound quality by connecting multiple terminals through bluetooth of a vehicle machine includes S100-S300, and several steps are described in detail below:
s100, the vehicle machine is independently connected with the first electronic device, the second electronic device and the Bluetooth headset.
Specifically, the car machine may establish a music transmission connection with the bluetooth headset, for example, an A2DP (Advanced Audio Distribution Profile) connection may be established. In addition, the car machine is connected with the first electronic device and the second electronic device in a bluetooth call control manner, for example, an HFP (Hands-free Profile) protocol can be established, and the HFP protocol is a bluetooth call control protocol and can control operations such as answering, hanging up and voice dialing of a bluetooth phone, so that a driver can control a call by clicking a car machine screen or in a voice control manner, thereby simplifying a flow and improving driving safety. Moreover, the bandwidth occupied by the connection of HFP is less, so that the audio transmission is not influenced, and the audio tone quality is ensured.
S200, the car machine plays music in the car machine through the Bluetooth headset.
Particularly, after establishing A2DP connection, the car machine can play the music stored in the car machine through the bluetooth headset, and the bluetooth channel will be occupied all the way after the bluetooth headset plays.
And S300, the vehicle machine keeps establishing Bluetooth communication transmission connection or Bluetooth music connection with any one of the first electronic equipment and the second electronic equipment at the same time according to the priority.
Particularly, the priority of the Bluetooth communication transmission connection is higher than that of the Bluetooth music connection, and because the car machine only establishes audio transmission connection with any one of the first electronic equipment or the second electronic equipment at the same time, only one path of Bluetooth channel is occupied, so that the audio transmission is controlled within the allowed range of the Bluetooth bandwidth, and the Bluetooth tone quality is effectively ensured.
More specifically, S300 is divided into the following six cases, and the following cases are specifically described below.
As shown in fig. 3, fig. 3 illustrates a situation when a first electronic device makes or accesses a telephone call.
In the first case: when the first electronic device dials or accesses a telephone, the car machine determines that the second electronic device is in a non-call state and the second electronic device is in a music non-play state, and then the car machine establishes a bluetooth call transmission Connection with the first electronic device and occupies one bluetooth channel, for example, an SCO (synchronous Connection ordered) Connection can be established, the SCO link is a link for synchronous voice transmission, and the Connection can transmit data with high time requirement, so that call delay can be effectively reduced, and call quality is improved.
In the second case: when the first electronic equipment dials or accesses a telephone, the vehicle-mounted device determines that the second electronic equipment is in a non-talking state and the second electronic equipment is in a music playing state, the vehicle-mounted device cuts off Bluetooth music connection with the second electronic equipment, establishes SCO connection with the first electronic equipment and occupies one Bluetooth channel;
and after the first electronic equipment finishes the conversation, the car machine and the second electronic equipment recover the Bluetooth music connection.
In the two cases, when the first electronic device is in a call, the car machine refuses to establish the bluetooth call transmission connection with the second electronic device.
In the third case: when the first electronic equipment dials or accesses a call, the vehicle-mounted device determines that the second electronic equipment is in a call state, and the vehicle-mounted device refuses to establish SCO connection with the first electronic equipment for call.
As shown in fig. 4, fig. 4 shows a case where the first electronic device plays music through the car machine.
In a fourth situation, when the first electronic device plays music through the car machine, the car machine determines that the second electronic device is in a non-call state, and the second electronic device is in a music non-play state, the car machine establishes a bluetooth music connection with the first electronic device and occupies one bluetooth channel, for example, an AVP (A2DP + AVRCP (Audio/Video Remote Control Profile)) connection may be established, and the AVP connection may transmit Audio and Control operations of playing, pausing, and the like of the Audio, so that a driver may Control music playing by clicking a screen of the car machine, thereby improving driving safety.
In the fifth case: when the first electronic equipment plays music through the car machine, the car machine determines that the second electronic equipment is in a conversation state, and then the car machine refuses to establish AVP connection with the first electronic equipment.
In a sixth scenario, when the first electronic device plays music through the car machine, the car machine determines that the second electronic device is in a non-call state, and the second electronic device is in a music playing state, the car machine cuts off the bluetooth music connection with the second electronic device, establishes AVP connection with the first electronic device, and occupies one bluetooth channel.
In the above description of S300, the first electronic device is mainly used for operation, but in actual operation, the first electronic device and the second electronic device may be interchanged.
An embodiment of the present invention provides a system for improving sound quality by connecting multiple terminals to a vehicle bluetooth, including: the car machine 400, and the first electronic device 410, the second electronic device 420 and the bluetooth headset 430 that are respectively connected to the car machine 400 independently, referring to fig. 5, fig. 5 shows a schematic structural diagram of a system, including:
the car machine 400 is used for respectively controlling the Bluetooth audio transmission of the first electronic device 410, the second electronic device 420 and the Bluetooth headset 430;
the car machine 400 keeps establishing a bluetooth communication transmission connection or a bluetooth music control transmission connection with only one of the first electronic device 410 or the second electronic device 420 at the same time according to the priority;
the priority of the bluetooth call transmission connection between the car machine 400 and the first electronic device 410 or the second electronic device 420 is higher than that of the bluetooth music connection.
Further, the car machine 400 establishes a bluetooth call control connection with the first electronic device 410 and the second electronic device 420, and establishes a bluetooth music connection with the bluetooth headset.
The work flow and the function of each device in the system according to the embodiment of the present invention have been described in detail in the foregoing embodiment, and specifically refer to the description in the method in fig. 2 in the foregoing embodiment, which is not described herein again.
In addition, the present application further discloses an electronic apparatus, which is used for being independently connected to the first electronic device 630, the second electronic device 640, and the bluetooth headset 650, as shown in fig. 6, the electronic apparatus includes:
the bluetooth playing module 610 is configured to play music in the in-vehicle device through the bluetooth headset 650;
a connection module 620, configured to maintain a bluetooth call transmission connection or a bluetooth music connection with any one of the first electronic device 630 and the second electronic device 640 at the same time according to a priority, and the bluetooth playing module 610 maintains a music playing state of music;
the priority of the connection module 620 establishing the bluetooth communication transmission connection with the first electronic device 630 or the second electronic device 640 is higher than the priority of establishing the bluetooth music connection.
The work flow and the function of each device in the electronic apparatus according to the embodiment of the present invention have been described in detail in the above embodiment, and specifically refer to the description in the method in fig. 2 of the above embodiment, which is not described herein again.
Referring now to fig. 7, shown is a block diagram of a SoC (System on Chip) 1300 in accordance with an embodiment of the present application. In fig. 7, similar components have the same reference numerals. In addition, the dashed box is an optional feature of more advanced socs. In fig. 7, SoC1300 includes: an interconnect unit 1350 coupled to the application processor 1310; a system agent unit 1380; a bus controller unit 1390; an integrated memory controller unit 1340; a set or one or more coprocessors 1320 which may include integrated graphics logic, an image processor, an audio processor, and a video processor; a Static Random Access Memory (SRAM) unit 1330; a Direct Memory Access (DMA) unit 1360. In one embodiment, the coprocessor 1320 includes a special-purpose processor, such as, for example, a network or communication processor, compression engine, GPGPU, a high-throughput MIC processor, embedded processor, or the like.
Included in Static Random Access Memory (SRAM) unit 1330 may be one or more computer-readable media for storing data and/or instructions. A computer-readable storage medium may have stored therein instructions, in particular, temporary and permanent copies of the instructions. The instructions may include: when executed by at least one unit in the processor, the Soc1300 may execute the calculation method according to the foregoing embodiment, which specifically refers to the method shown in fig. 2 in the foregoing embodiment, and is not described herein again.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. The utility model provides a method that many terminals of car machine bluetooth connection promoted tone quality which characterized in that is applied to the car machine, the method includes:
the vehicle machine is independently connected with the first electronic device, the second electronic device and the Bluetooth headset through the Bluetooth module respectively;
the car machine plays the music in the car machine through the Bluetooth headset, and,
and the vehicle machine keeps establishing Bluetooth communication transmission connection or Bluetooth music connection with any one of the first electronic equipment and the second electronic equipment at the same time according to the priority.
The priority of the Bluetooth communication transmission connection established between the vehicle and the first electronic equipment or between the vehicle and the second electronic equipment is higher than that of the Bluetooth music connection.
2. The method of claim 1, wherein the car machine is independently connected to the first electronic device, the second electronic device, and the bluetooth headset through the bluetooth module, respectively, and comprises:
the car machine establishes Bluetooth call control connection with the first electronic equipment and the second electronic equipment, and establishes music transmission connection with the Bluetooth headset.
3. The method of claim 1, wherein the car machine keeping the bluetooth call transmission connection or the bluetooth music connection with any one of the first electronic device or the second electronic device at the same time according to priority comprises:
when the first electronic device dials or accesses a telephone, the vehicle-mounted device determines that the second electronic device is in a non-call state, and the second electronic device is in a music non-play state, and then the vehicle-mounted device establishes the Bluetooth call transmission connection with the first electronic device.
4. The method of claim 3, further comprising:
when the first electronic device dials or accesses a telephone, the vehicle-mounted device determines that the second electronic device is in a non-call state and the second electronic device is in a music playing state, the vehicle-mounted device cuts off Bluetooth music connection with the second electronic device and establishes Bluetooth call transmission connection with the first electronic device;
and after the first electronic equipment finishes the call, the car machine and the second electronic equipment recover Bluetooth music connection.
5. The method of claim 3, further comprising:
when the first electronic device dials or accesses a telephone, the vehicle-mounted device determines that the second electronic device is in a call state, and then the vehicle-mounted device refuses to establish the Bluetooth call transmission connection with the first electronic device.
6. The method of claim 3, further comprising:
when the first electronic equipment is in a call, the car machine refuses to establish the Bluetooth call transmission connection with the second electronic equipment.
7. The method of claim 1, wherein the car machine keeps establishing the bluetooth call transmission connection or the bluetooth music connection with any one of the first electronic device or the second electronic device at the same time according to priority, further comprising:
when the first electronic device plays music through the car machine, the car machine determines that the second electronic device is in a conversation state, and then the car machine refuses to establish the Bluetooth music connection with the first electronic device.
8. The method of claim 7, further comprising:
when the first electronic device plays music through the car machine, the car machine determines that the second electronic device is in a non-call state, and the second electronic device is in a music non-play state, and then the car machine establishes the Bluetooth music connection with the first electronic device.
9. The method of claim 7, further comprising:
when the first electronic equipment plays music through the car machine, the car machine determines that the second electronic equipment is in a non-call state, and the second electronic equipment is in a music playing state, the car machine cuts off Bluetooth music connection with the second electronic equipment and establishes the Bluetooth music connection with the first electronic equipment.
10. The utility model provides a system for many terminals of car machine bluetooth connection promote tone quality, a serial communication port, includes:
the system comprises a vehicle machine, a first electronic device, a second electronic device and a Bluetooth headset, wherein the first electronic device, the second electronic device and the Bluetooth headset are independently connected with the vehicle machine;
the vehicle machine is used for respectively controlling the Bluetooth audio transmission of the first electronic equipment, the second electronic equipment and the Bluetooth headset;
the vehicle machine is used for keeping the Bluetooth communication transmission connection or the Bluetooth music control transmission connection with any one of the first electronic equipment and the second electronic equipment at the same time according to the priority;
the priority of the Bluetooth communication transmission connection established between the car machine and the first electronic equipment or the second electronic equipment is higher than that of the Bluetooth music connection.
11. The system for improving sound quality through the vehicle-mounted Bluetooth connection multi-terminal as claimed in claim 10, wherein the vehicle-mounted device establishes a Bluetooth call control connection with the first electronic device and the second electronic device, and establishes the Bluetooth music connection with the Bluetooth headset.
12. An electronic apparatus for independent connection with the first electronic device, the second electronic device, and the bluetooth headset, respectively, the electronic apparatus comprising:
the Bluetooth playing module is used for playing the music in the vehicle machine through the Bluetooth headset;
the connection module is used for keeping the Bluetooth communication transmission connection or the Bluetooth music connection with any one of the first electronic equipment and the second electronic equipment at the same time according to the priority, and the Bluetooth playing module keeps the music playing state of music;
the priority of the connection module establishing Bluetooth communication transmission connection with the first electronic equipment or the second electronic equipment is higher than that of establishing the Bluetooth music connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110489000.2A CN113225719A (en) | 2021-04-29 | 2021-04-29 | Method, system and device for improving tone quality by connecting multiple terminals through Bluetooth of vehicle machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110489000.2A CN113225719A (en) | 2021-04-29 | 2021-04-29 | Method, system and device for improving tone quality by connecting multiple terminals through Bluetooth of vehicle machine |
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| CN113225719A true CN113225719A (en) | 2021-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024055494A1 (en) * | 2022-09-13 | 2024-03-21 | 荣耀终端有限公司 | Call method and apparatus based on bluetooth earphone, and storage medium |
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