WO2023160214A1 - Bluetooth earphone, audio output method and audio output system - Google Patents

Abstract

Embodiments of the present application provide a Bluetooth earphone, an audio output method and an audio output system, which are used for reducing the cost of a sound amplification device and expanding the function of the sound amplification device. The state of the Bluetooth earphone provided by the embodiments of the present application comprises a slave device state and a master device state, and the Bluetooth earphone comprises a switching module and a Bluetooth module. The switching module is used for switching the state of the Bluetooth earphone from the slave device state to the master device state in response to a switching operation of a user on the Bluetooth earphone when the Bluetooth earphone is in the slave device state. The Bluetooth module is used for searching for an audio device when the Bluetooth earphone is in the master device state and establishing a Bluetooth connection with the audio device.

Description

Bluetooth earphone, audio output method and audio output system

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office on February 28, 2022, with application number 202210193753.3, and application title "Bluetooth headset, audio output method, and audio output system", the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the technical field of terminals, and in particular to a bluetooth earphone, an audio output method and an audio output system.

Background technique

In daily life, it is necessary to increase the speaker's volume in many scenarios, for example, speaking outdoors.

In the prior art, an audio amplifying circuit is designed based on an ultra-high frequency (UHF) frequency band or other civilian exclusive frequency bands in an amplifying box or a wireless speaker to complete the amplifying function. When actually using the PA box or wireless speaker, it is also necessary to use a microphone in the same proprietary frequency band to complete the sound collection function. In other words, at present, amplified boxes or wireless speakers need to be purchased and used in sets with microphones.

However, the cost of purchasing a set of amplifying boxes or wireless speakers with microphones is relatively high, and the amplifying boxes or wireless speakers and microphones are currently only used for sound amplification, and their functions are relatively single.

Contents of the invention

The embodiment of the present application provides a bluetooth earphone, an audio output method and an audio output system, which are used to reduce the cost of the sound amplification device and expand the function of the sound amplification device.

In order to achieve the above object, the embodiments of the present application adopt the following technical solutions:

In a first aspect, a bluetooth headset is provided, the state of the bluetooth headset includes a slave device state and a master device state, and the bluetooth headset includes a switching module and a bluetooth module; the switching module is used for when the bluetooth headset is in the slave device state , in response to the switching operation of the Bluetooth headset by the user, the state of the Bluetooth headset is switched from the slave device state to the master device state; the Bluetooth module is used to search for audio when the Bluetooth headset is in the master device state. device to establish a Bluetooth connection with the audio device.

In the audio output system provided by the embodiment of the present application, the bluetooth headset after state switching is in the master state, and can establish a bluetooth connection with the searched audio equipment through the bluetooth module. Since Bluetooth communication occupies a specific frequency band, usually 2.4 GHz, Bluetooth headsets or audio devices with Bluetooth functions are universal. That is to say, any Bluetooth headset and any audio device with Bluetooth function can realize the sound amplification function, and it is not necessary to purchase and use the Bluetooth headset and audio device as a set. On the one hand, the universal design can save production and purchase costs. On the other hand, the universal design can also enable users to find replacement equipment easily after the equipment is damaged, and it can also prevent the equipment from being disabled due to the difficulty of finding the replacement equipment after the equipment is damaged. Waste of resources caused by damaged devices matching devices. In addition, compared to a microphone dedicated to sound amplification, a Bluetooth headset can also perform other functions besides sound amplification, for example, it can be used for listening to music, watching videos, voice calls or video chats.

In combination with the first aspect above, in a possible implementation manner, the Bluetooth headset further includes a storage module and a matching module; the storage module is used to save preset Bluetooth device information; the matching module is used to determine whether the audio device is compatible with Whether the preset Bluetooth device information stored in the Bluetooth headset matches; the Bluetooth module is used to establish a Bluetooth connection with the audio device when the audio device matches the preset Bluetooth device information stored in the Bluetooth headset. In the embodiment of the present application, before the Bluetooth headset establishes a Bluetooth connection with the audio device, it is necessary to determine whether the audio device matches the preset Bluetooth device information stored in the storage module through the matching module, and only establish a connection when they match, thereby improving the success of the connection. The probability.

With reference to the first aspect above, in a possible implementation manner, the Bluetooth headset further includes an audio module; the audio module is configured to broadcast device information of the audio device; the Bluetooth module is also configured to respond to the user's The operation of the audio device, establish a Bluetooth connection with the audio device. In the embodiment of the present application, before the Bluetooth headset establishes a Bluetooth connection with the audio device through the Bluetooth module, the device information of the audio device needs to be broadcast through the audio module and operated by the user, thereby increasing the probability of successfully connecting to the device that the user expects to connect, and then Improve user experience.

With reference to the foregoing first aspect, in a possible implementation manner, the operation includes a touch operation or a voice control operation.

In combination with the first aspect above, in a possible implementation manner, the Bluetooth headset is connected to the electronic device via Bluetooth, the Bluetooth headset is in the state of the slave device, and the electronic device is in the state of the master device; the Bluetooth module is also used to receive the electronic device The device information of the audio device sent by the device; the storage module is also used to store the device information of the audio device. In the embodiment of the present application, before the state switching of the Bluetooth headset, the Bluetooth headset is in the state of the slave device, and the electronic device is in the state of the master device. Therefore, the electronic device can send information to the Bluetooth headset through the Bluetooth.

With reference to the foregoing first aspect, in a possible implementation manner, the audio device is the electronic device. The electronic device is used to switch the state from the master device state to the slave device state in response to the user's switching operation on the electronic device. In the embodiment of the present application, the audio device and the electronic device may be the same device, which has the characteristics of a screen and sound output, for example, a smart phone or a notebook computer.

With reference to the first aspect above, in a possible implementation manner, the Bluetooth module is further configured to detect the user's audio data through the audio module after the Bluetooth connection is established with the audio device, and send the audio data to the audio device via Processed audio data. In the embodiment of the present application, after the Bluetooth headset establishes a Bluetooth connection with the audio device through the Bluetooth module, it can realize the function of increasing the volume of the user's voice.

In combination with the first aspect above, in a possible implementation manner, the Bluetooth headset includes a button, and the user's switching operation on the Bluetooth headset includes touching the button of the Bluetooth headset N times, pressing and holding the button for N seconds, or Slide the button up or down, where N is a positive integer. In the embodiment of the present application, the key used for the switching operation may be any key defined by the user, such as a volume up key, a volume down key or a playback pause key.

In a second aspect, an audio output method is provided, which can be applied to a Bluetooth headset. The state of the bluetooth headset includes a slave device state and a master device state, and the audio output method includes: when the bluetooth headset is in the slave device state, in response to a user's switching operation on the bluetooth headset, changing the state of the bluetooth headset from the Switch from the state of the device to the state of the master device; when the Bluetooth headset is in the state of the master device, search for an audio device and establish a Bluetooth connection with the audio device.

With reference to the second aspect above, in a possible implementation, the audio output method further includes: determining whether the audio device matches the preset Bluetooth device information stored in the Bluetooth headset; When the stored preset Bluetooth device information matches, a Bluetooth connection is established with the audio device.

With reference to the second aspect above, in a possible implementation manner, the audio output method further includes: broadcasting device information of the audio device; and establishing a Bluetooth connection with the audio device in response to the user's operation on the audio device.

With reference to the second aspect above, in a possible implementation manner, the operation includes a touch operation or a voice control operation.

In combination with the second aspect above, in a possible implementation manner, the Bluetooth headset is connected to the electronic device via Bluetooth, the Bluetooth headset is in the state of the slave device, and the electronic device is in the state of the master device; the method further includes: receiving and storing the electronic device The device information of the audio device sent by the device.

With reference to the second aspect above, in a possible implementation manner, the audio device is the electronic device; the electronic device is configured to switch the state from the main device state to the slave device status.

With reference to the second aspect above, in a possible implementation, the audio output method further includes: after establishing a Bluetooth connection with the audio device, detecting the user's audio data, and sending the processed audio data to the audio device data.

In combination with the second aspect above, in a possible implementation, the user's switching operation on the Bluetooth headset includes touching the button of the Bluetooth headset N times, pressing the button for N seconds, or sliding the button up or down. button, where N is a positive integer.

In a third aspect, an audio output system is provided, the audio output system includes a bluetooth headset and an electronic device; the state of the bluetooth headset includes a slave device state and a master device state, and the state of the electronic device includes the slave device state and the master device state Device state, the bluetooth headset is connected with the electronic device bluetooth, the bluetooth headset is in the state of the slave device, and the electronic device is in the state of the master device; the bluetooth headset is used to respond when the bluetooth headset is in the state of the slave device The user's switching operation on the Bluetooth headset switches the state of the Bluetooth headset from the slave device state to the master device state; the Bluetooth headset is also used to search for audio devices when the Bluetooth headset is in the master device state, and The audio device establishes a Bluetooth connection.

In combination with the third aspect above, in a possible implementation manner, the Bluetooth headset is also used to determine whether the audio device matches the preset Bluetooth device information stored in the Bluetooth headset; When the stored preset Bluetooth device information matches, a Bluetooth connection is established with the audio device.

With reference to the third aspect above, in a possible implementation manner, the Bluetooth headset is further configured to broadcast device information of the audio device; the Bluetooth headset is further configured to communicate with the audio device in response to the user's operation on the audio device. The audio device establishes a Bluetooth connection.

With reference to the third aspect above, in a possible implementation manner, the operation includes a touch operation or a voice control operation.

In combination with the third aspect above, in a possible implementation manner, the electronic device is configured to connect with the Bluetooth headset via Bluetooth, and send the device information of the audio device to the Bluetooth headset; the Bluetooth headset is configured to receive and store The device information of the audio device sent by the electronic device.

With reference to the third aspect above, in a possible implementation manner, the electronic device is configured to, in response to the user's operation of selecting the audio device from the devices searched by the electronic device, send the audio device's information to the Bluetooth headset. Device Information. In the embodiment of the present application, since the Bluetooth headset has no screen, an electronic device with a screen can be used to complete the device search and select an audio device from the searched devices. This visual selection operation helps to improve the user experience.

With reference to the third aspect above, in a possible implementation manner, the audio device is the electronic device; the electronic device is further configured to switch the state from the main device state to The slave device status. In this embodiment of the application, the audio device and the electronic device can be the same device, which has the characteristics of both screen and sound output, and can be in the state of the master device or in the state of the slave device, for example, a smartphone or a laptop . The bluetooth earphone is in the state of the master device after state switching, and the electronic device can switch the state to the state of the slave device, so that the bluetooth earphone 1 and the electronic device can establish a bluetooth connection.

With reference to the third aspect above, in a possible implementation manner, the Bluetooth headset is further configured to detect the user's audio data after establishing a Bluetooth connection with the audio device, and send the processed audio data to the audio device Data; the audio device is used to receive the processed audio data from the Bluetooth headset.

In combination with the third aspect above, in a possible implementation, the user's switching operation on the Bluetooth headset includes touching the button of the Bluetooth headset N times, pressing the button for N seconds, or sliding up or down the button. button, where N is a positive integer.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program or instruction is stored, and when the computer program or instruction is run on a computer, the computer is made to execute the second aspect and any of them. - Design the method described.

According to a fifth aspect, a chip system is provided, the chip system includes a processor, a memory, and a computer program code is stored in the memory; when the computer program code is executed by the processor, any one of the possible features of the second aspect can be realized method in the implementation. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

In the sixth aspect, the embodiment of the present application provides a computer program product, the computer program product includes: a computer program or instruction, when the computer program or instruction is run on the computer, the computer executes the second aspect and any design described in the second aspect. Methods.

It should be noted that, for the technical effects brought about by any design in the second aspect to the sixth aspect above, refer to the technical effects brought about by the corresponding design in the first aspect, which will not be repeated here.

Description of drawings

FIG. 1 is a schematic structural diagram of a system for implementing sound amplification in the prior art;

FIG. 2 is a schematic structural diagram of an audio output system provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of an application scenario of an audio output system provided by an embodiment of the present application;

Fig. 4 is a schematic flow diagram of enlarging the user's speech volume after establishing a Bluetooth connection between a Bluetooth headset and a Bluetooth speaker provided by an embodiment of the present application;

Fig. 5 is a structural schematic diagram 1 of the bluetooth earphone provided by the implementation of the present application;

Fig. 6 is a structural schematic diagram II of the bluetooth earphone provided by the implementation of the present application;

Fig. 7 is a structural schematic diagram 3 of the bluetooth earphone provided by the implementation of the present application;

FIG. 8 is a schematic structural diagram of an electronic device provided by the implementation of the present application;

FIG. 9 is a flow chart 1 of an audio output method provided by an embodiment of the present application;

FIG. 10 is a second flowchart of an audio output method provided by an embodiment of the present application.

Detailed ways

The Bluetooth headset, audio output method, and audio output system provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also includes Other steps or elements inherent to the process, method, product or apparatus are included.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

In the description of the present application, unless otherwise specified, the meaning of "plurality" refers to two or more. The "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone These three situations.

As mentioned in the background technology, in the prior art, when a speaker box or a wireless speaker operating in the UHF frequency band or other proprietary frequency bands for civilian use is used, it is also necessary to use a microphone in the same proprietary frequency band to realize the functions of sound collection and sound amplification. ,As shown in Figure 1. The audio amplification circuit designed in the amplification box or wireless speaker includes a wireless receiving module, an audio stream generation module, a digital to analog converter (DAC), a tone adjustment module, a voltage amplifier, a digital power amplifier module and a speaker. Among them, the voltage amplifier can also be called a potentiometer.

However, the existing technology has the problem that the cost of purchasing a complete set is relatively high, and after purchase, it is only used to realize sound amplification, and the function is relatively single. In addition, the frequency bands used by products of different equipment manufacturers may be different, and there may be problems of incompatibility. For example, if the microphone A matched with the amplifier box A is damaged during use, the user needs to purchase the microphone A' produced by the same manufacturer, or purchase the amplifier box B and microphone B produced by another manufacturer. Finding a certain manufacturer to purchase a specific product may bring a lot of inconvenience to the user, or disabling the amplifier box A due to damage to the microphone A will cause a waste of resources.

At present, as the popularity rate of the Bluetooth headset is getting higher and higher, the embodiment of the present application can realize the wireless sound amplification function by improving the function of the Bluetooth headset. The specific functions and technical effects of the Bluetooth headset will be described in detail in the following system embodiments, and will not be repeated here.

As shown in FIG. 2 , it is an audio output system 20 provided by the embodiment of the present application. The audio output system 20 includes a Bluetooth headset 201 , an electronic device 202 and an audio device 203 . Wherein, the audio device 203 may be one or more devices, and only one device is schematically shown in FIG. 2 . Exemplarily, the bluetooth earphone 201 may be the left earphone or the right earphone of a pair of true wireless stereo (true wireless stereo, TWS) bluetooth earphones. The electronic device 202 may be a smart phone. The audio device 203 may be a Bluetooth speaker. The state of the bluetooth earphone 201 includes a slave device state and a master device state, and the state of the electronic device 202 includes a slave device state and a master device state. in the master state.

In FIG. 2 , the bluetooth earphone 201 is used to switch the state of the bluetooth earphone 201 from the slave state to the master state in response to the user's switching operation on the bluetooth earphone 201 when the bluetooth earphone 201 is in the slave state. The Bluetooth headset 201 is also used to search for the audio device 203 and establish a Bluetooth connection with the audio device 203 when the Bluetooth headset 201 is in the master device state. In the audio output system provided in the embodiment of the present application, the bluetooth headset 201 after state switching is in the master state, and can establish a bluetooth connection with the searched audio device 203 . Since the Bluetooth communication occupies a specific frequency band, usually 2.4 GHz, the Bluetooth headset 201 or the audio device 203 with the Bluetooth function is universal. That is to say, any Bluetooth earphone 201 and any audio device 203 with Bluetooth function can realize the sound amplification function, and it is not necessary to purchase and use the Bluetooth earphone 201 and the audio device 203 as a set. On the one hand, the universal design can save production and purchase costs. On the other hand, the universal design can also enable users to find replacement equipment easily after the equipment is damaged, and it can also prevent the equipment from being disabled due to the difficulty of finding the replacement equipment after the equipment is damaged. Waste of resources caused by damaged devices matching devices. In addition, compared to the microphone dedicated to sound amplification, the Bluetooth headset 201 can also implement other functions besides sound amplification, for example, it can be used for listening to music, watching videos, voice calls or video chats.

In some embodiments of the present application, the user's switching operation on the Bluetooth headset 201 includes touching the button of the Bluetooth headset 201 N times, pressing and holding the button for N seconds, or sliding the button up or down, wherein N is a positive integer. The button used for switching operations can be any button defined by the user, such as a volume up key, a volume down key or a playback pause key.

Exemplarily, the bluetooth headset 201 can realize the state switching by resetting or restarting the bluetooth.

When the sound amplification function is not used, the Bluetooth headset 201 needs to return to the usual slave device state. The user can trigger the switching of the state again by putting the Bluetooth headset 201 into the headset box, that is, switching the Bluetooth headset 201 from the master device state to the slave device state.

Exemplarily, the Bluetooth connection established between the Bluetooth headset 201 and the audio device 203 may be a connection-oriented synchronous link (synchronous connection oriented link, SCO).

In some embodiments of the present application, the Bluetooth headset 201 is also used to: determine whether the audio device 203 matches the preset Bluetooth device information stored in the Bluetooth headset 201; When the device information matches, a Bluetooth connection is established with the audio device 203 . That is to say, in the embodiment of the present application, before the Bluetooth headset 201 establishes a Bluetooth connection with the audio device 203, it is necessary to determine whether the preset Bluetooth device information stored in the audio device 203 and the Bluetooth headset 201 matches, and the connection is established only when they match. , thereby increasing the probability of a successful connection.

It should be noted that the match between the audio device 203 and the preset Bluetooth device information stored in the Bluetooth headset 201 means that the preset Bluetooth device information stored in the Bluetooth headset 201 includes the device information of the audio device 203 . Conversely, the fact that the audio device 203 does not match the preset Bluetooth device information stored in the Bluetooth headset 201 means that the preset Bluetooth device information stored in the Bluetooth headset 201 does not include the device information of the audio device 203 .

Wherein, in the embodiment of the present application, the device information includes an address, or, the device information includes an address and a name. The address may be, for example, a media access control (media access control, MAC) address.

In some embodiments of the present application, the Bluetooth headset 201 is also used to broadcast the device information of the audio device 203 . The Bluetooth headset 201 is also used to establish a Bluetooth connection with the audio device in response to the user's operation on the audio device 203 . That is to say, in the embodiment of the present application, before the Bluetooth headset 201 establishes a Bluetooth connection with the audio device 203, the device information of the audio device 203 needs to be broadcast and operated by the user, thereby increasing the probability of successfully connecting to the device that the user desires to connect. Thereby improving user experience.

In the embodiment of the present application, when the audio device 203 matches the preset Bluetooth device information stored in the Bluetooth headset 201 , the Bluetooth headset 201 is also used to broadcast the device information of the audio device 203 .

Generally, the preset Bluetooth device information stored in the Bluetooth headset 201 can be arranged in chronological order. The Bluetooth earphone 201 may preferentially broadcast the audio device 203 that matches the latest stored preset Bluetooth device information.

If the device information of the audio device 203 includes the address and name of the audio device 203 , the Bluetooth headset 201 can voice announce the name of the audio device 203 . When the audio device 203 is multiple devices, the Bluetooth headset 201 can also voice announce the name and corresponding number of the audio device 203 . If the device information of the audio device 203 includes the address of the audio device 203 , the Bluetooth headset 201 announces the address of the audio device 203 by voice.

In a possible implementation manner, when the audio device 203 is the only device matching the preset Bluetooth device information stored in the Bluetooth headset 201 , the Bluetooth headset 201 may voice announce the name or address of the audio device 203 . At this time, the user's operation on the audio device 203 may be a touch operation, for example, the user clicks a button to confirm the Bluetooth connection with the audio device 203 .

In another possible implementation, when the audio device 203 is one of multiple devices that match the preset Bluetooth device information stored in the Bluetooth headset 201, the Bluetooth headset 201 can voice broadcast and the information stored in the Bluetooth headset 201. The preset Bluetooth device information matches the names of multiple devices, for example, "name 1, name 2, ... name M", where M is a positive integer greater than 1. At this time, the user's operation on the audio device 203 can be a touch control operation, for example, the user clicks a certain button J times to select the audio device 203 corresponding to the name J for Bluetooth connection, where J is a positive integer and satisfies 1≤J≤M. Exemplarily, for another example, the Bluetooth headset 201 can voice broadcast "name 1, name 2, ... name M, please say the name of the device to be connected", at this time, the user's operation on the audio device 203 can be a voice control operation , for example, the user speaks "name J" to select the audio device 203 corresponding to name J for Bluetooth connection. Alternatively, the Bluetooth headset 201 can voice broadcast the names and corresponding numbers of multiple devices that match the preset Bluetooth device information stored in the Bluetooth headset 201, for example, "1, name 1, 2, name 2, ... M, name M, please say the number corresponding to the device you want to connect". At this time, the user's operation on the audio device 203 may be a voice control operation, for example, the user speaks "J" to select the audio device 203 corresponding to the name J for Bluetooth connection. In addition, the Bluetooth headset 201 can also voice broadcast the name of one of the multiple devices that match the preset Bluetooth device information stored in the Bluetooth headset 201 each time, until the user selects the device corresponding to the name J through touch operation or voice control operation. The audio device 203 is connected. For example, the Bluetooth headset 201 broadcasts "Will you connect to name 1?", if the user does not perform any operation or says "No" within a preset time, then the Bluetooth headset 201 continues to broadcast "Will you connect to name 2". If the user clicks a preset button or says "yes", then the Bluetooth headset 201 no longer performs voice broadcast, but connects to the audio device 203 corresponding to the name 2 .

In yet another possible implementation, when the audio device 203 is a plurality of devices matching the preset Bluetooth device information stored in the Bluetooth headset 201, the user's operation on the audio device 203 may be voice control operate. The Bluetooth headset 201 can voice broadcast the names of multiple devices that match the preset Bluetooth device information stored in the Bluetooth headset 201, for example, "name 1, name 2, ... name M, please say the name of the device to be connected", At this time, the user can select the audio device 203 corresponding to the name J and the audio device 203 corresponding to the name H by saying, for example, "name J, name H" for Bluetooth connection, and J and H are both positive integers and satisfy J≠H , 1≤J≤M, 1≤H≤M. Alternatively, the Bluetooth headset 201 can voice broadcast the names and corresponding numbers of multiple devices that match the preset Bluetooth device information stored in the Bluetooth headset 201, for example, "1, name 1, 2, name 2, ... M, name M, please say the number corresponding to the device you want to connect". At this point, the user can select the audio device 203 corresponding to the name J and the audio device 203 corresponding to the name H by saying, for example, "J, H" for Bluetooth connection.

In some embodiments of the present application, the electronic device 202 is configured to connect with the Bluetooth headset 201 through Bluetooth, and send device information of the audio device 203 to the Bluetooth headset 201 . The Bluetooth headset 201 is configured to receive and store the device information of the audio device 203 sent by the electronic device 202 . In the embodiment of the present application, before the state switching of the Bluetooth headset 201, the Bluetooth headset 201 is in the state of the slave device, and the electronic device 202 is in the state of the master device. Therefore, the electronic device 202 can send information to the Bluetooth headset 201 through Bluetooth.

The preset Bluetooth device information stored in the Bluetooth headset 201 may include device information of Bluetooth devices connected to the Bluetooth headset 201 , or device information of Bluetooth devices not connected to the Bluetooth headset 201 from the electronic device 202 .

In some embodiments of the present application, the electronic device 202 is configured to send device information of the audio device 203 to the Bluetooth headset 201 in response to the user's operation of selecting the audio device 203 from devices searched by the electronic device 202 . In the embodiment of the present application, since the Bluetooth headset 201 has no screen, the electronic device 202 with a screen can be used to complete the device search and select the audio device 203 from the searched devices. This visual selection operation helps to improve the user experience.

Exemplarily, as shown in FIG. 3 , the user may open an application for controlling the Bluetooth headset 201 on the electronic device 202, and the electronic device 202 enters an interface as shown in 3A in FIG. 3 . Exemplarily, the interface may include the name of the Bluetooth headset 201, the icon and name of the currently connected device, touch buttons related to sound, and touch buttons related to Smart Listening. Wherein, 3A in FIG. 3 exemplarily shows icons and names corresponding to two connected devices. It can be understood that the icon and name of the connected device include the icon and name of the electronic device 202 . The sound-related touch buttons may include a button for enabling or disabling noise reduction, a button for selecting a noise reduction method, a button for enabling or disabling a human voice enhancement function, and a button for selecting sound quality. For example, noise reduction is currently enabled, the current noise reduction method is balanced, the current human voice enhancement function is enabled, and the current sound quality is super quality (SQ). The touch buttons related to smart listening include the loudspeaker function button and the morning greeting button for broadcasting the content of interest. Although not shown, the interface shown in 3A in FIG. 3 may also include icons and names of previously connected but currently unconnected devices. Among them, the icons and names of previously connected but currently unconnected devices can be located on the right side of the icons and names of currently connected devices, and the icons and names of previously connected but currently unconnected devices can be displayed in grayscale to match the color display icon and name of the currently connected device.

It should be noted that 3A in FIG. 3 only gives an example of an interface of an electronic device. In fact, the interface of an electronic device may adopt other layouts and may include other functions except sound amplification.

Exemplarily, the user may click the loudspeaker function button on the interface shown in 3A in FIG. 3 , so that the electronic device 202 enters the interface shown in 3B in FIG. 3 . This interface includes buttons to enable or disable the Bluetooth function. When the Bluetooth function is enabled, the electronic device 202 can display icons, names and details buttons of the searched devices, and 3B in the figure exemplarily shows icons, names and details buttons corresponding to five searched devices. The user can view related information of the searched device 1 , such as the device address, by clicking, for example, the details button on the right side of the name of the searched device 1 .

Exemplarily, the user may select one or more audio devices to be connected from the searched devices shown in 3B in FIG. 3 . Afterwards, the electronic device 202 may send device information of one or more audio devices selected by the user on the electronic device 202 to the Bluetooth headset 201 .

In some embodiments of the present application, the audio device 203 is the electronic device 202 . The electronic device 202 is further configured to switch the state from the master device state to the slave device state in response to the user's switching operation on the electronic device 202 . In this embodiment of the application, the audio device 203 and the electronic device 202 can be the same device, which has the characteristics of screen and sound output, and can be in the state of the master device or in the state of the slave device, for example, a smart phone or laptop. The bluetooth headset 201 is in the state of the master device after the state switching, and the electronic device 202 can switch the state to the state of the slave device, so that the bluetooth headset 201 and the electronic device 202 can establish a bluetooth connection.

Exemplarily, the user's switching operation on the electronic device 202 may be that the user clicks a state switching button on the electronic device 202 .

In some embodiments of the present application, the Bluetooth headset 201 is further configured to detect the user's audio data and send the processed audio data to the audio device 203 after establishing a Bluetooth connection with the audio device 203 . The audio device 203 is configured to receive the processed audio data from the Bluetooth headset 201 . That is to say, in the embodiment of the present application, after the Bluetooth headset 201 establishes a Bluetooth connection with the audio device 203, the function of increasing the volume of the user's voice can be implemented.

Referring to FIG. 2 , taking the audio device 203 as a Bluetooth speaker as an example, FIG. 4 shows the process of increasing the user's speech volume after the Bluetooth headset 201 establishes a Bluetooth connection with the Bluetooth speaker 203 . Wherein, the microphone in the bluetooth headset 201 is used for sound pickup, and can detect audio data from the user. The speech coder in the bluetooth earphone 201 can be used for compressing and coding the user's audio data, and the coding method can adopt bluetooth common continuous variable slope delta modulation (continuously variable slope delta modulation, CVSD) coding or multi-subband coding (multi sub-band coding, mSBC). The Bluetooth transmission channel in the Bluetooth headset 201 can be used to send encoded audio data to the Bluetooth speaker 203 . The Bluetooth receiving channel in the Bluetooth speaker 203 can be used to receive the audio data sent by the Bluetooth speaker 203 . The voice decoding module in the bluetooth speaker 203 can be used to decode the received audio data to obtain an audio code stream. The voice decoding module in the bluetooth speaker 203 can also be used to perform digital-to-analog signal conversion on the audio code stream. The speaker in the bluetooth speaker 203 can be used to realize the sound amplification function according to the converted analog signal.

The foregoing mainly introduces the system provided by the embodiment of the present application from the perspective of interaction between various devices. Correspondingly, the embodiment of the present application also provides a bluetooth earphone, which is used to implement the above various functions. It can be understood that, in order to realize the above-mentioned functions, the Bluetooth headset includes corresponding hardware structures and/or software modules for performing various functions. Those skilled in the art should easily realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Different methods may be used to implement the described functionality for each particular application, but such implementation should not be considered beyond the scope of the present application.

The embodiment of the present application can divide the function modules of the Bluetooth headset according to the above system embodiments. For example, each function module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation.

FIG. 5 shows a structure of a Bluetooth headset 201 provided by the implementation of this application. The Bluetooth headset 201 includes a switching module 501 and a Bluetooth module 502 . Optionally, the Bluetooth headset 201 may further include a storage module 503 , a matching module 504 , and an audio module 505 .

The switching module 501 is used for switching the state of the Bluetooth headset 201 from the slave state to the master state in response to the user's switching operation on the Bluetooth headset 201 when the Bluetooth headset 201 is in the slave state. The Bluetooth module 502 is configured to search for audio devices and establish a Bluetooth connection with the audio devices when the Bluetooth headset 201 is in the master device state.

In a possible implementation manner, the storage module 503 is configured to store preset Bluetooth device information. The matching module 504 is configured to determine whether the audio device matches the preset Bluetooth device information stored in the Bluetooth headset 201 . The Bluetooth module 502 is configured to establish a Bluetooth connection with the audio device when the audio device matches the preset Bluetooth device information stored in the Bluetooth headset 201 .

In a possible implementation manner, the audio module 505 is configured to broadcast device information of the audio device. The Bluetooth module 502 is further configured to establish a Bluetooth connection with the audio device in response to the user's operation on the audio device.

In a possible implementation manner, the user's operation on the audio device includes touch operation or voice control operation.

In a possible implementation manner, the Bluetooth headset 201 is connected to the electronic device via Bluetooth, the Bluetooth headset 201 is in a slave device state, and the electronic device is in a master device state. The bluetooth module 502 is also configured to receive the device information of the audio device sent by the electronic device. The storage module 503 is also used to store device information of the audio device.

In a possible implementation manner, the audio device is an electronic device, and the electronic device is configured to switch a state from a master device state to a slave device state in response to a user's switching operation on the electronic device.

In a possible implementation manner, the Bluetooth module 502 is further configured to detect the user's audio data through the audio module 505 after the Bluetooth connection is established with the audio device, and send the processed audio data to the audio device.

In a possible implementation, the Bluetooth headset 201 includes a button, and the switching operation on the Bluetooth headset 201 includes touching the button of the Bluetooth headset 201 N times, pressing and holding the button for N seconds, or sliding the button up or down, wherein, N is a positive integer.

Wherein, the relevant content involved in the above-mentioned system embodiments can all refer to the function descriptions of the corresponding functional modules, which will not be repeated here.

It should be noted that one or more of the above modules or units may be implemented by software, hardware or a combination of both. When any of the above modules or units is implemented by software, the software exists in the form of computer program instructions and is stored in the memory, and the processor can be used to execute the program instructions and realize the above method flow. The processor can be built into a SoC (system on a chip) or ASIC, or it can be an independent semiconductor chip. The core of the processor is used to execute software instructions for calculation or processing, and can further include necessary hardware accelerators, such as field programmable gate array (field programmable gate array, FPGA), PLD (programmable logic device) , or a logic circuit that implements a dedicated logic operation.

When the above modules or units are implemented by hardware, the hardware can be CPU, microprocessor, digital signal processing (digital signal processing, DSP) chip, microcontroller unit (microcontroller unit, MCU), artificial intelligence processor, ASIC, Any one or any combination of SoC, FPGA, PLD, dedicated digital circuits, hardware accelerators, or non-integrated discrete devices, which can run necessary software or do not rely on software to realize the functions of the system described in the above embodiments .

FIG. 6 shows another structure of the Bluetooth headset 201 provided by the implementation of this application. The Bluetooth headset 201 may include: a processor 610 , a memory 620 , a sensor 630 , a wireless communication module 640 , a receiver 650 , a microphone 660 and a power supply 670 .

Wherein, the memory 620 may be used to store device information of other Bluetooth devices. The device information of the other bluetooth devices may be the device information of the bluetooth devices connected to the bluetooth earphone 201, or the device information of the bluetooth devices from other devices to which the bluetooth earphone 201 has not been connected. The above device information may include a MAC address.

The memory 620 can also be used to store application program codes, such as application program codes for establishing a wireless connection with an audio device or an electronic device, and enabling the Bluetooth headset 201 to perform a pairing connection with the audio device or an electronic device. The processor 610 may control and execute the above application program codes, so as to realize the functions of the Bluetooth headset 201 in the embodiment of the present application.

The sensor 630 may be a distance sensor or a proximity light sensor. The Bluetooth headset 201 can determine whether it is worn by the user through the sensor 630 . For example, the Bluetooth headset 201 can use a proximity light sensor to detect whether there is an object near the Bluetooth headset 201, so as to determine whether the Bluetooth headset 201 is worn by the user. When it is determined that the Bluetooth headset 201 is worn, the Bluetooth headset 201 may turn on the receiver 650 and/or the microphone 660 . In some other embodiments, the Bluetooth headset 201 may further include a touch sensor for detecting a user's touch operation, including clicking, long pressing, sliding up or sliding down. In some embodiments, the Bluetooth headset 201 may also include a bone conduction sensor, combined to form a bone conduction headset. Using the bone conduction sensor, the Bluetooth headset 201 can acquire the vibration signal of the vibrating bone of the vocal part, analyze the voice signal, and realize the voice function.

The wireless communication module 640 is used to support short-distance data exchange between the Bluetooth headset 201 and various devices, such as the above-mentioned electronic devices or audio devices. In some embodiments, the wireless communication module 640 can be a Bluetooth transceiver. The Bluetooth headset 201 can establish a wireless connection with the above-mentioned electronic device or audio device through the Bluetooth transceiver, so as to realize short-distance data exchange between the two.

At least one receiver 650, which may also be referred to as an "earpiece", may be used to convert audio electrical signals into audio signals and play them back. For example, the receiver 650 may announce device information of an audio device.

At least one microphone 660, which may also be referred to as "microphone" or "microphone", is used to convert sound signals into audio electrical signals. For example, after the Bluetooth headset 201 establishes a Bluetooth connection with the audio device, the microphone 660 can collect the user's voice signal during the user's speech and convert it into an audio electrical signal. The above audio electrical signal is the audio data in the embodiment of the present application.

The power supply 670 can be used to supply power to various components contained in the Bluetooth headset 201 . In some embodiments, the power source 670 may be a battery, such as a rechargeable battery. Usually, the Bluetooth headset 201 is equipped with a headset box for storing the Bluetooth headset 201 . In addition, the earphone box can also charge the Bluetooth earphone 201 . Correspondingly, in some embodiments, the Bluetooth headset 201 may further include: an input/output interface 680 . The input/output interface 680 can be used to provide any connection between the Bluetooth headset 201 and the headset box.

In some embodiments, input/output interface 680 may be an electrical connector. When the bluetooth earphone 201 is placed in the earphone box, the bluetooth earphone 201 can be electrically connected with the earphone box (such as the input/output interface of the earphone box) through the electrical connector. After the electrical connection is established, the headset box can charge the power supply 670 of the Bluetooth headset 201 . After the electrical connection is established, the Bluetooth headset 201 can also perform data communication with the headset box. For example, the Bluetooth headset 201 can receive a pairing instruction from the headset box through the electrical connection. The pairing instruction is used to instruct the Bluetooth headset 201 to turn on the wireless communication module 640, so that the Bluetooth headset 201 can use a corresponding wireless communication protocol (such as Bluetooth) to perform pairing connection with the electronic device. For another example, the Bluetooth headset 201 may receive a state switching instruction from the headset box through the electrical connection. The state switching instruction is used to instruct the processor 610 to switch the state of the Bluetooth headset 201 from the master state to the slave state.

Of course, the Bluetooth headset 201 may not include the input/output interface 680 . In this case, the Bluetooth earphone 201 can realize the function of charging or data communication based on the wireless connection established with the earphone box through the above-mentioned wireless communication module 640 .

In addition, in some embodiments, the earphone box may further include components such as a processor and a memory. The memory can be used to store application program codes, which are controlled and executed by the processor of the earphone box, so as to realize the functions of the earphone box. For example, when the user opens the cover of the earphone box, the processor of the earphone box may send a pairing instruction to the Bluetooth headset 201 in response to the user's operation of opening the cover by executing the application program code stored in the memory. For another example, when the user puts the Bluetooth headset 201 into the headset box, the processor of the headset box executes the application program code stored in the memory, and can respond to the user's operation of putting the Bluetooth headset 201 into the headset box to send a message to the Bluetooth headset 201. State switching instructions.

It can be understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the Bluetooth headset 201 . It may have more or fewer components than shown in FIG. 6 , may combine two or more components, or may have a different configuration of components. For example, the bluetooth earphone 201 may also include an indicator light (which can indicate the status of the power of the bluetooth earphone 201, etc.), a dust filter (which can be used with the earpiece) and other components. The various components shown in Figure 6 may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing or application specific integrated circuits.

In a simple embodiment, those skilled in the art can imagine that the Bluetooth headset 201 can take the form of the Bluetooth headset 201 shown in FIG. 5 .

For example, the function/implementation process of the switching module 501 or the matching module 504 in FIG. 5 can be implemented by the processor 610 in the Bluetooth headset 201 shown in FIG. 6 calling the computer-executed instructions stored in the memory 620 . The Bluetooth module 502 in FIG. 5 can be realized by the wireless communication module 640 in FIG. 6 . The storage module 503 in FIG. 5 may be implemented by the memory 620 in FIG. 6 . The audio module 505 in FIG. 5 can be realized by the receiver 650 and the microphone 660 in FIG. 6 .

Referring to FIG. 7 , it is a schematic diagram of a product form of a bluetooth headset 201 provided by an embodiment of the present application. As shown in FIG. 7 , the Bluetooth earphone 201 may include: a left earphone 701 , a right earphone 702 and an earphone box 703 . Wherein, the bluetooth earphone 201 can be an earplug type, an ear-hook type or an earphone or the like. For example, the Bluetooth headset 201 may be a TWS headset. The earphone box 703 can be used to accommodate the left earphone 701 and/or the right earphone 702. FIG. 7 shows a schematic diagram of an example of a product form of the Bluetooth headset 201 by way of example only. The product forms provided in the embodiments of this application include but are not limited to the Bluetooth headset shown in FIG. 7 .

In the embodiment of the present application, the Bluetooth headset 201 in FIG. 2 is the left headset 701 or the right headset 702 in FIG. 7 .

Further, the left earphone 701 is taken as an example for description. The left earphone 701 includes an earphone head 7011 and an earphone handle 7012 . In combination with the audio output system 20 shown in FIG. 2 , the buttons for switching operations can be located on the earphone head 7011 or the earphone handle 7012 , and can be customized by the user. The user's switching operation can be, for example, touching the earphone head 7011N times, long pressing the earphone head 7011N seconds, touching the left side of the earphone handle 7012 N times, long pressing the left side of the earphone handle 7012 N times, and pressing the left side of the earphone handle 7012 upwards. Or slide down, touch the front and rear sides of the earphone handle 7012 with two fingers at the same time N times, or pinch and hold the front and rear sides of the earphone handle 7012 with two fingers at the same time for N seconds, the switching operation of the user can also be other gestures, The embodiment of the present application does not make any limitation on this.

Referring to FIG. 2 , taking the electronic device 202 as a mobile phone as an example, FIG. 8 shows a schematic diagram of a hardware structure of the electronic device 202 . As shown in Figure 8, the electronic device 202 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, an antenna 1, an antenna 2, a mobile communication module 150, a wireless Communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, earphone interface 170D, sensor module 180 and so on.

It can be understood that the structure shown in the embodiment of the present invention does not constitute a specific limitation on the mobile phone. In some other embodiments of the present application, the mobile phone may include more or fewer components than shown in the figure, or combine certain components, or separate certain components, or arrange different components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

The processor 110 may include one or more processing units, for example: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processing unit (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural network processor (neural-network processing unit, NPU) wait. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. Repeated access is avoided, and the waiting time of the processor 110 is reduced, thereby improving the efficiency of the system.

The wireless communication function of the mobile phone can be realized by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor and the baseband processor.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in a mobile phone can be used to cover single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 can provide wireless communication solutions including 2G/3G/4G/5G applied to mobile phones. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA) and the like. The mobile communication module 150 can receive electromagnetic waves through the antenna 1, filter and amplify the received electromagnetic waves, and send them to the modem processor for demodulation. The mobile communication module 150 can also amplify the signals modulated by the modem processor, and convert them into electromagnetic waves and radiate them through the antenna 1 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be set in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be set in the same device.

The wireless communication module 160 can provide applications on mobile phones including wireless local area networks (wireless local area networks, WLAN) (such as wireless fidelity (wireless fidelity, Wi-Fi) network), bluetooth (bluetooth, BT), global navigation satellite system ( Global navigation satellite system (GNSS), frequency modulation (frequency modulation, FM), near field communication (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency-modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , frequency-modulate it, amplify it, and convert it into electromagnetic waves through the antenna 2 for radiation.

In some embodiments, the antenna 1 of the mobile phone is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the mobile phone can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC , FM, and/or IR techniques, etc. The GNSS may include a global positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a Beidou navigation satellite system (beidou navigation satellite system, BDS), a quasi-zenith satellite system (quasi -zenith satellite system (QZSS) and/or satellite based augmentation systems (SBAS).

In some embodiments, when the electronic device 202 is in the master device state, the wireless communication module 160 can be used to search for available Bluetooth devices, and send the audio device selected by the user from the Bluetooth devices searched by the electronic device 202 to the Bluetooth headset. information.

In some embodiments, the electronic device 202 and the audio device are the same device. When the electronic device 202 is in the slave state, the wireless communication module 160 can be used to establish a Bluetooth connection with the Bluetooth headset and receive audio data from the Bluetooth headset.

The mobile phone realizes the display function through the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. GPUs are used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 194 is used to display images, videos and the like. The display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active matrix organic light emitting diode or an active matrix organic light emitting diode (active-matrix organic light emitting diode, AMOLED), flexible light-emitting diode (flex light-emitting diode, FLED), Miniled, MicroLed, Micro-oLed, quantum dot light emitting diodes (quantum dot light emitting diodes, QLED), etc. In some embodiments, the mobile phone may include 1 or N display screens 194, where N is a positive integer greater than 1.

In some embodiments, the display screen 194 may be used to display an interface as shown in 3A in FIG. 3 or 3B in FIG. 3 .

The mobile phone can realize shooting function through ISP, camera 193 , video codec, GPU, display screen 194 and application processor.

The ISP is used for processing the data fed back by the camera 193 . For example, when taking a picture, open the shutter, the light is transmitted to the photosensitive element of the camera through the lens, and the light signal is converted into an electrical signal, and the photosensitive element of the camera transmits the electrical signal to the ISP for processing, and converts it into an image visible to the naked eye. ISP can also perform algorithm optimization on image noise, brightness, and skin color. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene. In some embodiments, the ISP may be located in the camera 193 .

Camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects it to the photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the light signal into an electrical signal, and then transmits the electrical signal to the ISP to convert it into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. DSP converts digital image signals into standard RGB, YUV and other image signals. In some embodiments, the mobile phone may include 1 or N cameras 193, where N is a positive integer greater than 1.

Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the mobile phone selects the frequency point, the digital signal processor is used to perform Fourier transform on the frequency point energy.

Video codecs are used to compress or decompress digital video. A mobile phone can support one or more video codecs. In this way, the mobile phone can play or record videos in multiple encoding formats, such as: moving picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4, etc.

The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the mobile phone. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. Such as saving music, video and other files in the external memory card.

The internal memory 121 may be used to store computer-executable program codes including instructions. The processor 110 executes various functional applications and data processing of the mobile phone by executing instructions stored in the internal memory 121 . The internal memory 121 may include an area for storing programs and an area for storing data. Wherein, the stored program area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.) and the like. The storage data area can store data (such as audio data, phone book, etc.) created during the use of the mobile phone. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (universal flash storage, UFS) and the like.

The mobile phone can realize the audio function through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. Such as music playback, recording, etc.

The audio module 170 is used to convert digital audio information into analog audio signal output, and is also used to convert analog audio input into digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be set in the processor 110 , or some functional modules of the audio module 170 may be set in the processor 110 .

Speaker 170A, also referred to as a "horn", is used to convert audio electrical signals into sound signals. The cell phone can listen to music through speaker 170A, or listen to hands-free calls.

Receiver 170B, also called "earpiece", is used to convert audio electrical signals into sound signals. When the mobile phone receives a call or a voice message, the receiver 170B can be placed close to the human ear to listen to the voice.

The microphone 170C, also called "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a phone call or sending a voice message, the user can put his mouth close to the microphone 170C to make a sound, and input the sound signal to the microphone 170C. The mobile phone may be provided with at least one microphone 170C. In some other embodiments, the mobile phone can be equipped with two microphones 170C, which can also implement the noise reduction function in addition to collecting sound signals. In some other embodiments, the mobile phone can also be equipped with three, four or more microphones 170C to realize the collection of sound signals, noise reduction, identification of sound sources, and realization of directional recording functions, etc.

The earphone interface 170D is used for connecting wired earphones. The earphone interface 170D can be a USB interface 130, or a 3.5mm open mobile terminal platform (OMTP) standard interface, or a cellular telecommunications industry association of the USA (CTIA) standard interface.

In some embodiments, the electronic device 202 and the audio device are the same device, and when the electronic device 202 is in a slave state, the audio module 170 can be used to process audio data from the Bluetooth headset. Referring to FIG. 4 , the function of the voice decoder in the Bluetooth speaker 203 in FIG. 4 can be realized by the audio module 170 shown in FIG. 8 . The function of the speaker in the Bluetooth speaker 203 in FIG. 4 can be realized by the speaker 170A shown in FIG. 8 .

The sensor module 180 may include a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, and the like.

Certainly, the mobile phone may also include a charging management module, a power management module, a battery, buttons, an indicator, and one or more SIM card interfaces, etc., which are not limited in this embodiment of the present application.

Fig. 9 shows an example of the audio output method provided by this application. This example involves the interaction between a Bluetooth headset, an electronic device, and an audio device, and may include the following steps:

S901. In response to the user's operation of selecting an audio device from devices searched by the electronic device, the electronic device in the master device state sends the address and name of the audio device selected by the user to the Bluetooth headset in the slave device state. Correspondingly, the Bluetooth headset receives and stores the address and name sent by the electronic device.

S902, the bluetooth earphone in the state of the slave device switches the state from the state of the slave device to the state of the master device in response to the user's switching operation on the bluetooth earphone.

S903. The bluetooth headset in the master device state searches for an audio device. When the searched audio device matches the stored address and name, the Bluetooth headset announces the name of the audio device.

Exemplarily, the stored device information may include the address and name stored in step S901, and may also include the address and name of the Bluetooth device to which the Bluetooth headset has been connected. The Bluetooth headset may preferentially broadcast the name of the audio device that matches the address and name stored in step S901. If the Bluetooth headset cannot find an audio device that matches the address and name stored in step S901, the Bluetooth headset may broadcast the name of the Bluetooth device found and connected to before.

S904. In response to the user's confirmation or selection operation, the Bluetooth headset establishes a Bluetooth connection with the audio device confirmed or selected by the user.

S905. When the user's audio data is detected, the Bluetooth headset sends the processed user's audio data to the audio device. Accordingly, the audio device receives the processed user's audio data from the Bluetooth headset.

Fig. 10 shows another example of the audio output method provided by this application. In this example, since the audio device and the electronic device are the same device, only the interaction between the Bluetooth headset and the electronic device is involved. The electronic device and the bluetooth headset are connected through bluetooth, the electronic device is in the state of the master device, and the bluetooth headset is in the state of the slave device. This example could include the following steps:

S1001. The electronic device in the master state sends the address and name of the electronic device to the Bluetooth headset in the slave state. Correspondingly, the Bluetooth headset receives and stores the address and name sent by the electronic device.

S1002, the bluetooth earphone in the state of the slave device switches the state from the state of the slave device to the state of the master device in response to the user's switching operation on the bluetooth earphone.

S1003. The electronic device in the master device state switches the state from the master device state to the slave device state in response to a user's switching operation on the electronic device.

It should be noted that the execution order of step S1002 and step S1003 can be interchanged.

S1004. The bluetooth headset in the master device state searches for an audio device, and when the searched audio device matches the address and name of the electronic device, broadcasts the name of the electronic device.

S1005. In response to the user's confirmation operation, the Bluetooth headset establishes a Bluetooth connection with the electronic device.

S1006. When the user's audio data is detected, the Bluetooth headset sends the processed user's audio data to the audio device. Accordingly, the audio device receives the processed user's audio data from the Bluetooth headset.

For the technical effect of the audio output method provided by the embodiment shown in FIG. 9 and FIG. 10 , refer to the description of the technical effect of the embodiment shown in FIG. 4 , which will not be repeated here.

Optionally, an embodiment of the present application further provides a chip system, including: at least one processor and an interface, the at least one processor is coupled to the memory through the interface, and when the at least one processor executes the computer program or instruction in the memory , so that the above method shown in FIG. 9 or FIG. 10 is executed. In a possible implementation manner, the chip system further includes a memory. Optionally, the system-on-a-chip may consist of a chip, or may include a chip and other discrete devices, which is not specifically limited in this embodiment of the present application.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server, or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or may be a data storage device including one or more servers, data centers, etc. that can be integrated with the medium. The available medium may be a magnetic medium (such as a floppy disk, a hard disk, or a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (solid state disk, SSD)), etc.

Although the present application has been described in conjunction with various embodiments here, however, in the process of implementing the claimed application, those skilled in the art can understand and Other variations of the disclosed embodiments are implemented. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that these measures cannot be combined to advantage.

Although the application has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely illustrative of the application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of this application. Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (27)

1. A bluetooth headset, characterized in that the state of the bluetooth headset includes a slave device state and a master device state, and the bluetooth headset includes a switching module and a bluetooth module;

   The switching module is configured to switch the state of the Bluetooth headset from the slave state to the master state in response to a switching operation of the Bluetooth headset by the user when the Bluetooth headset is in the slave state. device status;

   The Bluetooth module is configured to search for an audio device and establish a Bluetooth connection with the audio device when the Bluetooth headset is in the master device state.
2. The bluetooth headset according to claim 1, wherein the bluetooth headset further comprises a storage module and a matching module;

   The storage module is used to save preset Bluetooth device information;

   The matching module is configured to determine whether the audio device matches the preset Bluetooth device information stored in the Bluetooth headset;

   The Bluetooth module is configured to establish a Bluetooth connection with the audio device when the audio device matches the preset Bluetooth device information stored in the Bluetooth headset.
3. The bluetooth headset according to claim 2, wherein the bluetooth headset also includes an audio module;

   The audio module is configured to broadcast device information of the audio device;

   The Bluetooth module is further configured to establish a Bluetooth connection with the audio device in response to the user's operation on the audio device.
4. The bluetooth headset according to claim 3, wherein the operation includes a touch operation or a voice control operation.
5. The bluetooth earphone according to any one of claims 2-4, wherein the bluetooth earphone is connected to the electronic device via bluetooth, the bluetooth earphone is in the state of the slave device, and the electronic device is in the state of the master device;

   The Bluetooth module is further configured to receive device information of the audio device sent by the electronic device;

   The storage module is further configured to store device information of the audio device.
6. The Bluetooth headset according to claim 5, wherein the audio device is the electronic device; the electronic device is configured to switch the state from the main The device state switches to the slave device state.
7. The bluetooth headset according to any one of claims 1-6, wherein the bluetooth module is further configured to detect the user's audio through the audio module after establishing a bluetooth connection with the audio device data, sending the processed audio data to the audio device.
8. The bluetooth headset according to any one of claims 1-7, wherein the bluetooth headset includes buttons, and the user's switching operation on the bluetooth headset includes touching the button N times of the bluetooth headset , press and hold the button for N seconds, or slide the button up or down, where N is a positive integer.
9. An audio output method applied to a bluetooth headset, wherein the state of the bluetooth headset includes a slave state and a master state, and the method includes:

   When the Bluetooth headset is in the slave device state, in response to a user switching operation on the Bluetooth headset, switch the state of the Bluetooth headset from the slave device state to the master device state;

   When the Bluetooth headset is in the state of the master device, search for an audio device and establish a Bluetooth connection with the audio device.
10. The method according to claim 9, characterized in that the method further comprises:

    Determine whether the audio device matches the preset Bluetooth device information stored in the Bluetooth headset;

    When the audio device matches the preset Bluetooth device information stored in the Bluetooth headset, a Bluetooth connection is established with the audio device.
11. The method according to claim 10, characterized in that the method further comprises:

    broadcast device information of the audio device;

    In response to the user's operation on the audio device, a Bluetooth connection is established with the audio device.
12. The method according to claim 11, wherein the operation comprises a touch operation or a voice control operation.
13. The method according to any one of claims 10-12, wherein the Bluetooth headset is connected to the electronic device via Bluetooth, the Bluetooth headset is in a slave device state, and the electronic device is in a master device state; the method also includes include:

    receiving and storing the device information of the audio device sent by the electronic device.
14. The method according to claim 13, wherein the audio device is the electronic device; and the electronic device is configured to switch the state from the main device in response to the user's switching operation on the electronic device state switches to the slave state.
15. The method according to any one of claims 9-14, wherein the method further comprises:

    After the Bluetooth connection is established with the audio device, the audio data of the user is detected, and the processed audio data is sent to the audio device.
16. The method according to any one of claims 9-15, wherein the switching operation of the user on the Bluetooth headset includes touching the button of the Bluetooth headset N times, pressing the button for N seconds, or Slide the button up or down, wherein, N is a positive integer.
17. An audio output system, characterized in that the audio output system includes a bluetooth headset and an electronic device; the state of the bluetooth headset includes a slave device state and a master device state, and the state of the electronic device includes the slave device state and In the state of the master device, the Bluetooth headset is connected to the electronic device by Bluetooth, the Bluetooth headset is in the state of the slave device, and the electronic device is in the state of the master device;

    The bluetooth earphone is configured to switch the state of the bluetooth earphone from the slave state to the master state in response to a user's switching operation on the bluetooth earphone when the bluetooth earphone is in the state of the slave device device status;

    The Bluetooth headset is further configured to search for an audio device and establish a Bluetooth connection with the audio device when the Bluetooth headset is in the master device state.
18. The system according to claim 17, wherein the Bluetooth headset is further used to determine whether the audio device matches the preset Bluetooth device information stored in the Bluetooth headset; when the audio device matches the When the preset Bluetooth device information stored in the Bluetooth headset matches, establish a Bluetooth connection with the audio device.
19. The system of claim 18, wherein:

    The Bluetooth headset is also used to broadcast the device information of the audio device;

    The Bluetooth headset is further configured to establish a Bluetooth connection with the audio device in response to the user's operation on the audio device.
20. The system according to claim 19, wherein the operation comprises touch operation or voice control operation.
21. The system according to any one of claims 18-20, characterized in that,

    The electronic device is configured to connect with the Bluetooth headset via Bluetooth, and send device information of the audio device to the Bluetooth headset;

    The Bluetooth headset is configured to receive and store the device information of the audio device sent by the electronic device.
22. The system of claim 21 wherein,

    The electronic device is configured to send device information of the audio device to the Bluetooth headset in response to the user's operation of selecting the audio device from devices searched by the electronic device.
23. The system according to claim 21, wherein the audio device is the electronic device;

    The electronic device is further configured to switch the state from the master state to the slave state in response to the user's switching operation on the electronic device.
24. The system according to any one of claims 17-23, characterized in that,

    The Bluetooth headset is further configured to detect the user's audio data after establishing a Bluetooth connection with the audio device, and send the processed audio data to the audio device;

    The audio device is configured to receive the processed audio data from the Bluetooth headset.
25. The system according to any one of claims 17-24, wherein the user's switching operation on the Bluetooth headset includes touching the button of the Bluetooth headset N times, pressing and holding the button for N seconds, or Slide the button up or down, wherein, N is a positive integer.
26. A computer-readable storage medium, characterized in that computer programs or instructions are stored on the computer-readable storage medium, and when the computer programs or instructions are run on a computer, the computer is made to perform the tasks described in claim 9- The method of any one of 16.
27. A chip system, characterized in that the chip system includes a processing circuit and a storage medium, and the storage medium stores computer program code; when the computer program code is executed by the processing circuit, the implementation of claims 9-16 any one of the methods described.

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