Display device, hearing aid and method for adjusting the volume

Abstract

The embodiment of the present application provides a display device, a hearing aid and a volume adjusting method, relates to the technical field of Bluetooth communication, and is used for simplifying user operation when the volume of the hearing aid is adjusted. The display device comprises: a user interface configured to receive a first volume adjusting instruction; a controller configured to adjust and, in the case that a Bluetooth connection is established with a hearing aid supporting HAS, acquire a first volume value of the display device and a second volume value of the hearing aid after the volume of the display device is adjusted according to the first volume adjusting instruction; a detector configured to acquire the loudness of ambient sound in the case that it is determined according to the first volume value and the second volume value that the condition of adjusting the volume of the hearing aid is met; the controller is further configured to generate a second volume adjusting instruction according to the loudness of the ambient sound; and a communicator configured to send the second volume adjusting instruction to the hearing aid through the Bluetooth connection. The embodiment of the present application is used for volume adjustment.

Description

Technical Field

[0001] This application relates to the field of Bluetooth communication technology. More specifically, it relates to a display device, a hearing aid, and a volume adjustment method. Background Technology

[0002] A hearing aid is a device that uses a microphone to pick up ambient sounds, amplifies and reduces noise before reproducing the sounds in the wearer's ear, thus assisting hearing. Because the volume of ambient sounds changes in real time, the volume of the hearing aid often needs to be adjusted during use.

[0003] In existing technologies, the volume of hearing aids is adjusted either via volume control buttons on the hearing aid itself or via a separate device acting as a Hearing Aid Remote Control (HARC). However, adjusting the volume using the hearing aid's buttons requires removing the hearing aid to accurately operate the buttons, which is inconvenient. Adjusting the volume using a HARC requires first connecting the remote control and / or the hearing aid to establish a connection before further operation of the remote control is possible, which is also inconvenient. Summary of the Invention

[0004] Exemplary embodiments of this application provide a display device, a hearing aid, and a volume adjustment method to simplify user operations when adjusting the volume of a hearing aid, thereby improving the user experience.

[0005] The technical solutions provided in this application are as follows:

[0006] In a first aspect, embodiments of this application provide a display device, including:

[0007] The user interface is configured to receive the first volume adjustment command;

[0008] The controller is configured to adjust the volume of the display device according to the first volume adjustment command, and to acquire a first volume value and a second volume value when the display device has established a Bluetooth connection with a hearing aid that supports HAS (Hearing Aid Service); the first volume value is the volume value of the display device after adjusting the volume of the display device according to the first volume adjustment command, and the second volume value is the volume value of the hearing aid.

[0009] The detector is configured to acquire the loudness of the ambient sound when it is determined, based on the first volume value and the second volume value, that conditions for adjusting the volume of the hearing aid are met.

[0010] The controller is also configured to generate a second volume adjustment command based on the loudness of the ambient sound;

[0011] The communicator is configured to send the second volume adjustment command to the hearing aid via the Bluetooth connection to adjust the volume of the hearing aid.

[0012] Secondly, embodiments of this application provide a hearing aid, including:

[0013] The communicator is configured to broadcast a broadcast packet for requesting the establishment of a Bluetooth connection, the broadcast packet carrying the appearance attribute field of the hearing aid;

[0014] The communicator is also configured to receive a service query request sent by the display device during the process of establishing a Bluetooth connection with the display device, and, if the hearing aid supports the hearing aid service HAS, send a service query response to the display device carrying a universally unique identifier of the hearing aid service.

[0015] The communicator is also configured to receive volume adjustment commands sent by the display device via the Bluetooth connection after establishing a Bluetooth connection with the display device;

[0016] The controller is configured to adjust the volume according to the volume adjustment command.

[0017] Thirdly, embodiments of this application provide a volume adjustment method applied to a display device, the method comprising:

[0018] Receive the first volume adjustment command;

[0019] The volume of the display device is adjusted according to the first volume adjustment command;

[0020] When the display device establishes a Bluetooth connection with a hearing aid that supports HAS (Hearing Aid Service), a first volume value and a second volume value are obtained; the first volume value is the volume value of the display device after adjusting the volume of the display device according to the first volume adjustment command, and the second volume value is the volume value of the hearing aid.

[0021] The loudness of the ambient sound is obtained when the conditions for adjusting the volume of the hearing aid are met based on the first volume value and the second volume value.

[0022] A second volume adjustment command is generated based on the loudness of the ambient sound;

[0023] The second volume adjustment command is sent to the hearing aid via the Bluetooth connection to adjust the volume of the hearing aid.

[0024] Fourthly, embodiments of this application provide a volume adjustment method, including:

[0025] The broadcast packet is used to request the establishment of a Bluetooth connection, and the broadcast packet carries the appearance attribute field of the hearing aid;

[0026] During the process of establishing a Bluetooth connection with the display device, the system receives a service query request sent by the display device, and if the hearing aid supports the Hearing Aid Service (HAS), the system sends a service query response carrying a universally unique identifier for the hearing aid service to the display device.

[0027] After establishing a Bluetooth connection with the display device, the volume adjustment command sent by the display device is received through the Bluetooth connection;

[0028] Adjust the volume according to the volume adjustment command.

[0029] Fifthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a computing device, causes the computing device to perform the volume adjustment method described in any of the above embodiments.

[0030] Sixthly, embodiments of this application provide a computer program product that, when run on a computer, enables the computer to implement the volume adjustment method described in any of the above embodiments.

[0031] As can be seen from the above technical solutions, when the display device and volume adjustment method provided in this application receive a first volume adjustment command, the volume of the display device is adjusted according to the first volume adjustment command. If the display device has a Bluetooth connection with a hearing aid that supports hearing aid services, the method obtains a first volume value of the display device and a second volume value of the hearing aid after adjusting the volume of the display device according to the first volume adjustment command. Then, if the conditions for adjusting the volume of the hearing aid are met based on the first volume value and the second volume value, the method obtains the loudness of the ambient sound, generates a second volume adjustment command based on the loudness of the ambient sound, and sends the second volume adjustment command to the hearing aid via the Bluetooth connection to adjust the volume of the hearing aid. Compared to adjusting the volume of a hearing aid by removing it and using the volume control buttons on the hearing aid itself, or by using a separate device to remotely control the volume of the hearing aid, in this embodiment, when the hearing aid supports hearing aid services and has established a Bluetooth connection with the display device, the display device can adjust the volume of the hearing aid based on its own volume value, the volume value of the hearing aid, and the loudness of the ambient sound. Therefore, this embodiment can simplify the user operation when adjusting the volume of the hearing aid, thereby improving the user experience. Attached Figure Description

[0032] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0033] Figure 1 A scenario architecture diagram of the volume adjustment method in some embodiments is shown;

[0034] Figure 2 Hardware configuration block diagrams of the control device are shown in some embodiments;

[0035] Figure 3 A hardware configuration block diagram of a display device is shown in some embodiments;

[0036] Figure 4 A hardware configuration block diagram of a hearing aid in some embodiments is shown;

[0037] Figure 5 A software configuration diagram of a display device in some embodiments is shown;

[0038] Figure 6 A software configuration diagram of the audio architecture in some embodiments is shown;

[0039] Figure 7 A flowchart of the steps of the volume adjustment method in some other embodiments is shown;

[0040] Figure 8 Interactive flowcharts of volume adjustment methods in other embodiments are shown;

[0041] Figure 9 Interactive flowcharts of volume adjustment methods in other embodiments are shown;

[0042] Figure 10 Interactive flowcharts of volume adjustment methods in other embodiments are shown;

[0043] Figure 11 Interactive flowcharts of volume adjustment methods in other embodiments are shown. Detailed Implementation

[0044] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0045] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0046] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0047] Figure 1 This is a schematic diagram of the scenario architecture for the volume adjustment method provided in the embodiments of this application. Figure 1 As shown, the scenario architecture provided in this application embodiment includes: a control device 100, a display device 200, a terminal device 300, a server 400, and a hearing aid 500.

[0048] Users can operate the display device 200 through the terminal device 300 or the control device 100. A data transmission link is established between the display device 200 and the server 400, allowing the display device 200 to obtain relevant media resources from the server 400. A Bluetooth connection is established between the display device 200 and the hearing aid 500, enabling the display device 200 to send audio data or volume adjustment commands to the hearing aid 500, and the hearing aid 500 to send audio data to the display device 200 via the Bluetooth connection.

[0049] The display device 200 provided in this application embodiment can have various implementation forms, such as: the display device 200 can be a television, a smart speaker refrigerator with display function, a curtain with display function, a personal computer (PC), a laser projection device, a monitor, an electronic bulletin board, a wearable device, an in-vehicle device, an electronic table, etc. This application does not impose any limitations on this.

[0050] In some embodiments, the control device 100 may be a remote control, and the communication between the remote control and the display device 200 may be infrared protocol communication, Bluetooth protocol communication, or other short-range communication methods, controlling the display device 200 wirelessly or via wired means. Users can control the display device 200 by inputting user commands through buttons on the remote control, voice input, control panel input, etc. In some embodiments, the control device 100 may also be a terminal device (such as a mobile phone, tablet computer, computer, laptop computer, etc.). For example, an application running on the terminal device can be used to control the display device 200.

[0051] In some embodiments, the display device 200 can also be controlled using a terminal device 300 (such as a mobile phone, tablet computer, computer, laptop computer, etc.). For example, the display device 200 can be controlled using an application running on a smart device.

[0052] In some embodiments, the display device 200 may also be controlled in a manner other than that of the control device 100. For example, it may be controlled by directly receiving the user's voice commands through a module configured inside the display device 200 for acquiring voice commands, or by receiving the user's key operations through physical buttons on the display device 200, or by receiving the user's touch operations through the touch control panel of the display device 200.

[0053] In some embodiments, the display device 200 can also communicate with a server to obtain relevant media resources. The display device 200 may communicate with the server via a local area network (LAN) or a wireless local area network (WLAN). The server can provide media resource services and various content and interactive features to the display device 200. The server can be a cluster or multiple clusters, and may include one or more types of servers.

[0054] Figure 2 An example is shown Figure 1 A block diagram showing the configuration of the control device 100 in the illustrated embodiment. (See diagram below.) Figure 2 As shown, the control device 100 includes at least one of the following: a controller 110, a communication interface 130, a user input / output interface 140, a memory, and a power supply. The control device 100 can receive operation commands input by the user, convert the operation commands into commands that the display device 200 can recognize and respond to, and send the operation commands or commands obtained by converting voice commands to the display device 200, thus acting as an intermediary for interaction between the user and the display device 200.

[0055] Figure 3 An example is shown Figure 1 A configuration block diagram of the display device 200 in the illustrated embodiment. (See diagram below.) Figure 3 As shown, the display device 200 includes at least one of the following: a tuner / demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, and a user interface.

[0056] In some embodiments, the tuner 210 receives broadcast television signals via wired or wireless means, and demodulates audio and video signals, such as EPG data signals, from multiple wireless or wired broadcast television signals. In some embodiments, the tuner 210 may be located in different separate devices, that is, the tuner 210 may also be in an external device of the physical device where the controller 250 is located, such as an external set-top box.

[0057] The communicator 220 is a component used to communicate with external devices (such as controller 100, server 400, hearing aid 500, etc.) according to various communication protocol types. For example, the communicator 220 may include at least one of the following: a Wi-Fi module, a Bluetooth module, a wired Ethernet module, other network communication protocol chips or near-field communication protocol chips, and an infrared receiver. The display device 200 can send and receive control signals and data signals with external devices through the communicator 220.

[0058] Detector 230 is used to collect signals from the external environment or to interact with the external environment. For example, detector 230 includes a light receiver, a sensor for collecting ambient light intensity; or, detector 230 includes an image acquisition device, such as a camera, which can be used to collect external environmental scenes, user attributes, or user interaction gestures; or, detector 230 includes a sound acquisition device, such as a microphone, for receiving external sounds.

[0059] The external device interface 240 may include, but is not limited to, one or more of the following: High Definition Multimedia Interface (HDMI), analog or high-definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, etc. It may also be a composite input / output interface formed by multiple interfaces mentioned above.

[0060] Controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. Controller 250 controls the overall operation of display device 200. For example, in response to receiving a user command to select a UI object to display on display 260, controller 250 can perform operations related to the object selected by the user command. In some embodiments, the controller includes at least one of a central processing unit (CPU), a video processor, an audio processor, a graphics processing unit (GPU), RAM (Random Access Memory), ROM (Read-Only Memory), a first to nth interface for input / output, a communication bus, etc.

[0061] The display 260 includes a display screen assembly for presenting images, a driving assembly for driving image display, a component for receiving image signals output from a controller, and components for displaying video content, image content, and a menu control interface, as well as a user interface (UI). The display 260 can be a liquid crystal display (LCD), an OLED display, or a projection display, and can also be a projection device and a projection screen. Users can input user commands through a graphical user interface (GUI) displayed on the display 260, and the user interface receives the user input commands through the GUI. Alternatively, users can input user commands by inputting specific sounds or gestures, and the user interface receives the user input commands by recognizing the sounds or gestures through sensors. The user interface is the medium through which applications or operating systems interact and exchange information with users; it realizes the conversion between the internal form of information and the form that users can accept. A common form of user interface is the graphical user interface (GUI), which refers to a user interface related to computer operation displayed graphically. It can be an interface element such as an icon, window, or control displayed on the screen of an electronic device. The control can include visual interface elements such as icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, and widgets.

[0062] The audio output interface 270 is an audio output component used to output audio signals, including speakers, external audio output terminals, etc.

[0063] The user interface can be used to receive control signals input by the user through the control device 100 (such as an infrared remote control) or by touch or gesture.

[0064] Figure 4 An example is shown Figure 1 A block diagram illustrating the configuration of the hearing aid 500 in the illustrated embodiment. (See diagram below.) Figure 4 As shown, the hearing aid 500 includes at least one of the following: a communicator 510, an audio acquisition component 520, an external device interface 530, a controller 540, an audio output component 550, a memory, a power supply, and a user interface.

[0065] In some embodiments, the hearing aid 500 can pick up ambient sounds through the audio acquisition component 520, amplify and reduce noise through the controller 540, and output the processed ambient sounds through the audio output component 550 to achieve the function of assisting hearing.

[0066] In some embodiments, the hearing aid 500 can also establish a Bluetooth connection with other devices (such as display device 200 or terminal device 300) via communicator 510, and receive audio signals or control commands sent by other devices through the established Bluetooth connection, and output the received audio signals through audio output component 550, or respond to control commands sent by other devices through controller 540. The hearing aid 500 can also send audio signals or control commands to other devices through the established Bluetooth connection.

[0067] See Figure 5 As shown, in some embodiments, the operating system of the display device 200 is divided into four layers, from top to bottom: the Applications layer (hereinafter referred to as the "Application Layer"), the Application Framework layer (hereinafter referred to as the "Framework Layer"), the Android runtime and system library layer (hereinafter referred to as the "System Runtime Library Layer"), and the kernel layer.

[0068] In some embodiments, at least one application runs in the application layer. These applications may be Windows programs, system settings programs, or clock programs that come with the operating system; they may also be applications developed by third-party developers. In specific implementations, the application packages in the application layer are not limited to the examples above.

[0069] The framework layer provides application programming interfaces (APIs) and a programming framework for applications. The application framework layer includes predefined functions. It acts as a central processing unit, determining the actions taken by applications within the application layer. Through the API, applications can access system resources and obtain system services during execution.

[0070] like Figure 5As shown, the application framework layer in this embodiment includes managers, content providers, etc., wherein the managers include at least one of the following modules: ActivityManager, which interacts with all activities running in the system; LocationManager, which provides access to system location services for system services or applications; PackageManager, which retrieves various information related to applications currently installed on the device; NotificationManager, which controls the display and clearing of notification messages; and WindowManager, which manages icons, windows, toolbars, wallpapers, and desktop widgets on the user interface.

[0071] In some embodiments, the Activity Manager manages the lifecycle of individual applications and common navigation and back functions, such as controlling application exit, opening, and back actions. The Window Manager manages all window programs, such as obtaining the screen size, determining if a status bar is present, locking the screen, capturing the screen, and controlling display window changes (e.g., shrinking the display window, shaking the display, distorting the display, etc.).

[0072] In some embodiments, the system runtime library layer provides support for the upper layer, namely the framework layer. When the framework layer is used, the Android operating system runs the C / C++ libraries contained in the system runtime library layer to implement the functions that the framework layer needs to perform.

[0073] In some embodiments, the kernel layer is a layer between hardware and software. For example... Figure 5 As shown, the kernel layer includes at least one of the following drivers: audio driver, display driver, Bluetooth driver, camera driver, WIFI driver, USB driver, HDMI driver, sensor driver (such as fingerprint sensor, temperature sensor, pressure sensor, etc.), and power driver.

[0074] In some embodiments, the audio architecture in this application can be a low-power audio (LE audio) architecture. See also Figure 6 As shown, LE audio's audio architecture can be divided into: Top-level Profiles layer, audio decoder, Generic Audio Framework (GAF) layer, and Bluetooth core specification layer.

[0075] Upper-layer protocols provide additional requirements for specific audio use cases. These include: Telephony and Media Audio Profile (TMAP) for telephone and media audio applications, Hearing Aid Profile (HAP) and Hearing Aid Service (HAS) for hearing aid applications, and Public Broadcasting Profiles (PBP) for public broadcasting applications.

[0076] The audio decoder is the Low Complexity Communication Codec 3 (LC3), which is the mandatory codec for LE audio streams. LC3 can encode audio into a single stream, allowing GAF to configure unicast streams to audio playback devices such as hearing aids, earbuds, and headphones, transmitting only the audio required by the playback device.

[0077] The general audio architecture includes: Common Audio Profile (CAP), Common Audio Service (CAP), audio stream management, media control, call control, device coordination, microphone control, and volume control. Audio stream management includes: Basic Audio Profile (BAP), Published Audio Capabilities Service (PACS), Audio Stream Control Service (ASCS), and Broadcast Audio Scan Service (BASS). Media control includes: Media Control Profile (MCP) and Media Control Service (MCS). Call control includes: Call Control Profile (CCP) and Telephone Billing Service (TBS). Device coordination includes: Coordinated Set Identification Profile (CSIP) and Coordinated Set Identification Service (CSIS). Microphone control includes: Microphone Control Profile (MICP) and Microphone Control Service (MICS). Volume control includes: Volume Control Profile (VCP), Volume Control Service (VCS), Audio Input Control Service (VICS), and Volume Offset Control Service (VOCS).

[0078] Figure 7 The flowchart of the volume adjustment method provided in the embodiment of this application is illustrated by an example. The execution subject of the volume adjustment method can be... Figure 1 The display device 200 in the illustrated embodiment, such as Figure 7 As shown, the volume adjustment method provided in this application includes the following steps:

[0079] S71: Receives the first volume adjustment command.

[0080] In some embodiments, receiving a first volume adjustment command by a display device may include: the display device receiving a first volume adjustment command sent by a remote control or a terminal device through a user interface.

[0081] In other embodiments, the display device receiving the first volume adjustment command may include: the display device receiving user operations on the volume adjustment buttons of the display device through a user interface, and generating the first volume adjustment command based on the user operations on the volume adjustment buttons.

[0082] The first volume adjustment command in this embodiment can be a volume adjustment command to increase the volume value by a preset value, a volume adjustment command to decrease the volume value by a preset value, or a volume adjustment command to adjust the volume value to a specified volume value. For example, if a user operates the "Volume +" button on a remote control, the remote control sends a first volume adjustment command to the display device to increase the volume value by 1, and the display device receives the first volume adjustment command sent by the remote control. As another example, if a user receives voice input "adjust the volume value to 8" through the voice receiving component on the remote control, the remote control sends a first volume adjustment command to the display device to adjust the volume value to 8, and the display device receives the first volume adjustment command sent by the remote control.

[0083] S72. Adjust the volume of the display device according to the first volume adjustment command.

[0084] For example, when the first volume adjustment instruction is a volume adjustment instruction for increasing the volume value by 1, and the current volume value of the display device is 5, adjusting the volume of the display device according to the first volume adjustment instruction includes: increasing the volume value of the display device by 1 by executing the first volume adjustment instruction, thereby adjusting the volume value of the display device to 6.

[0085] For example, when the first volume adjustment instruction is a volume adjustment instruction for adjusting the volume value to 8, and the current volume value of the display device is 5, adjusting the volume of the display device according to the first volume adjustment instruction includes: adjusting the volume value of the display device from 5 to 8 by executing the first volume adjustment instruction.

[0086] S73. Determine whether the display device has established a Bluetooth connection with a hearing aid that supports Hearing Aid Service (HAS).

[0087] In some embodiments, determining whether the display device has established a Bluetooth connection with a hearing aid that supports hearing aid services may include: the display device determining, via a controller, whether it currently has a Bluetooth connection with other devices; if the display device currently does not have a Bluetooth connection with other devices, then it is determined that the display device has not established a Bluetooth connection with a hearing aid that supports hearing aid services; if the display device currently has a Bluetooth connection with other devices, then it is determined whether the device is a hearing aid (HA) and whether the device supports hearing aid services; if the device is not a hearing aid and / or the device does not support hearing aid services, then it is determined that the display device has not established a Bluetooth connection with a hearing aid that supports hearing aid services; and if the device is a hearing aid and supports hearing aid services, then it is determined that the display device has established a Bluetooth connection with a hearing aid that supports hearing aid services.

[0088] The Bluetooth connection in this application embodiment can be a Bluetooth connection established based on Low Energy Audio (LEaudio).

[0089] It should be noted that the execution order of steps S72 and S73 in this embodiment is not limited. The volume of the display device can be adjusted first according to the first volume adjustment command, and then it can be determined whether the display device has established a Bluetooth connection with a hearing aid that supports hearing aid services. Alternatively, it can be determined first whether the display device has established a Bluetooth connection with a hearing aid that supports hearing aid services, and then the volume of the display device can be adjusted according to the first volume adjustment command. Or, the volume of the display device can be adjusted simultaneously according to the first volume adjustment command, and the determination of whether the display device has established a Bluetooth connection with a hearing aid that supports hearing aid services can be made simultaneously.

[0090] It should also be noted that in the LE Audio technical specification, the hearing aid protocol defines the role of the hearing aid remote control. This hearing aid remote control can send control signals such as volume adjustment to the hearing aid, which are then executed by the hearing aid. Therefore, the display device can only act as the hearing aid remote control to send volume adjustment information to the hearing aid and be executed by the hearing aid if the hearing aid supports the hearing aid service. Therefore, this application will only perform subsequent steps to adjust the volume of the hearing aid after confirming that a Bluetooth connection has been established with a hearing aid that supports the hearing aid service.

[0091] In step S73 above, if the display device has not established a Bluetooth connection with a hearing aid that supports hearing aid services, the volume adjustment method provided in this embodiment ends, and the volume of the display is adjusted only according to the received volume adjustment command. However, if the display device has established a Bluetooth connection with a hearing aid that supports hearing aid services, then step S74 is executed as follows:

[0092] S74, Get the first volume value and the second volume value.

[0093] Wherein, the first volume value is the volume value of the display device after the volume of the display device is adjusted according to the first volume adjustment command, and the second volume value is the volume value of the hearing aid.

[0094] In some embodiments, the display device obtains the second volume value (the volume value of the hearing aid) by: the display device sending a volume request message to the hearing aid via the Bluetooth connection, receiving a volume response message returned by the hearing aid via the Bluetooth connection, and parsing the volume response message to obtain the second volume value.

[0095] In some embodiments, the display device obtains the second volume value (the volume value of the hearing aid) by maintaining the hearing aid volume value in the Volume Control Profile (VCP) module and reading the second volume value from the VCP module.

[0096] S75. Determine whether the hearing aid volume adjustment conditions are met based on the first volume value and the second volume value.

[0097] That is, determining whether the first volume value and the second volume value meet the conditions for adjusting the volume of the hearing aid.

[0098] In step S75 above, if it is determined based on the first volume value and the second volume value that the hearing aid volume adjustment condition is not met, the volume adjustment method provided in this application embodiment ends. If it is determined based on the first volume value and the second volume value that the condition for adjusting the hearing aid volume is met, then step S76 is executed as follows:

[0099] S76. Obtain the loudness of ambient sound.

[0100] In some embodiments, ambient sound can be converted into an electrical signal using the microphone of the display device, and the loudness of the ambient sound can be determined based on the intensity of the electrical signal obtained from the ambient sound conversion.

[0101] S77. Generate a second volume adjustment command based on the loudness of the ambient sound.

[0102] In some embodiments, the second volume adjustment command may be a volume adjustment command for increasing or decreasing the volume value by a preset value. For example, the second volume adjustment command may be a volume adjustment command for increasing the volume value by 1.

[0103] In some embodiments, the second volume adjustment instruction can be a volume adjustment instruction for adjusting the volume value to a specified volume value. For example, the second volume adjustment instruction can be a volume adjustment instruction for adjusting the volume value to 8.

[0104] S78. Send the second volume adjustment command to the hearing aid via the Bluetooth connection to adjust the volume of the hearing aid.

[0105] In some implementations, before sending the second volume adjustment command to the hearing aid via the Bluetooth connection, the display device may encapsulate the second volume adjustment command based on the Bluetooth communication protocol between the display device and the hearing aid.

[0106] The volume adjustment method provided in this application, upon receiving a first volume adjustment command, adjusts the volume of the display device according to the first volume adjustment command. If the display device has a Bluetooth connection with a hearing aid supporting hearing aid services, it obtains a first volume value of the display device and a second volume value of the hearing aid after adjusting the volume of the display device according to the first volume adjustment command. Then, if it determines that the conditions for adjusting the volume of the hearing aid are met based on the first volume value and the second volume value, it obtains the loudness of the ambient sound, generates a second volume adjustment command based on the loudness of the ambient sound, and sends the second volume adjustment command to the hearing aid via the Bluetooth connection to adjust the volume of the hearing aid. Compared to adjusting the volume of a hearing aid by removing it and using the volume control buttons on the hearing aid itself, or by using a separate device to remotely control the volume of the hearing aid, in this embodiment, when the hearing aid supports hearing aid services and has established a Bluetooth connection with the display device, the display device can adjust the volume of the hearing aid based on its own volume value, the volume value of the hearing aid, and the loudness of the ambient sound. Therefore, this embodiment can simplify the user operation when adjusting the volume of the hearing aid, thereby improving the user experience.

[0107] Figure 8 The diagram above illustrates, for example, the interactive flow of the volume adjustment method provided in the embodiments of this application. Figure 8 As shown, the volume adjustment method provided in this application includes the following steps:

[0108] S801, The display device receives the first volume adjustment command.

[0109] S802. The display device adjusts its volume according to the first volume adjustment command.

[0110] S803. The display device determines whether it has established a Bluetooth connection with a hearing aid that supports hearing aid services.

[0111] In step S803 above, if the display device has not established a Bluetooth connection with a hearing aid that supports hearing aid services, the volume adjustment method provided in this embodiment ends, and the volume of the display is adjusted only according to the received volume adjustment command. However, if the display device has established a Bluetooth connection with a hearing aid that supports hearing aid services, then step S804 is executed as follows:

[0112] S804, The display device obtains the first volume value and the second volume value.

[0113] Wherein, the first volume value is the volume value of the display device after the volume of the display device is adjusted according to the first volume adjustment command, and the second volume value is the volume value of the hearing aid.

[0114] The implementation methods of the above steps S801 to S804 are the same as Figure 7 The implementation of steps S71 to S74 in the illustrated embodiment is similar and will not be repeated here.

[0115] S805, The display device obtains the first volume difference.

[0116] Wherein, the first volume difference is the absolute value of the difference between the first volume value and the second volume value.

[0117] For example: after adjusting the volume of the display device according to the first volume adjustment command, the volume value of the display device is 8 and the volume value of the hearing aid is 5. Then, the first volume value is determined to be 8 and the second volume value is 5, and the first volume difference is calculated to be 3.

[0118] For example: after adjusting the volume of the display device according to the first volume adjustment command, the volume value of the display device is 4 and the volume value of the hearing aid is 6. Then, the first volume value is determined to be 6 and the second volume value is 4, and the first volume difference is calculated to be 2.

[0119] S806. The display device determines whether the first volume difference is greater than a preset threshold.

[0120] The preset threshold in this embodiment can be set according to the synchronization requirements of the display device volume value and the hearing aid volume value. If the synchronization requirements of the display device volume value and the hearing aid volume value are relatively low, the preset threshold can be set to a larger value. If the synchronization requirements of the display device volume value and the hearing aid volume value are relatively high, the preset threshold can be set to a smaller value.

[0121] For example, the preset threshold can be 0, 1, 2, 3, etc. When the preset threshold is set to 0, it means that the volume value of the display device is required to be completely synchronized with the volume value of the hearing aid. As long as the volume value of the display device is different from the volume value of the hearing aid, it is determined that the condition for adjusting the volume of the hearing aid is met.

[0122] In step S806 above, if the first volume difference is not greater than the preset threshold, then step S807 is executed, and the method flow of the volume adjustment method provided in this application embodiment ends.

[0123] S807, The display device determines that the conditions for adjusting the volume of the hearing aid are not met.

[0124] In step S806 above, if the first volume difference is greater than the preset threshold, then step S808 and subsequent steps are executed:

[0125] S808, The display device determines that the conditions for adjusting the volume of the hearing aid are met.

[0126] S809, The display device acquires the loudness of ambient sound.

[0127] S810, The display device generates a second volume adjustment command based on the loudness of the ambient sound.

[0128] The implementation methods of the above steps S809 and S810 are the same as Figure 7 The implementation of steps S76 and S77 in the illustrated embodiment is similar and will not be repeated here.

[0129] S811. The display device sends the second volume adjustment command to the hearing aid via the Bluetooth connection.

[0130] Accordingly, the hearing aid receives a second volume adjustment command sent by the display device via the Bluetooth connection.

[0131] S812, The hearing aid adjusts the volume according to the second volume adjustment command.

[0132] In the above embodiment, when the difference between the volume value of the display device and the volume value of the hearing aid is greater than a preset threshold, the loudness of the ambient sound is obtained, a second volume adjustment command is generated based on the loudness of the ambient sound, and the second volume adjustment command is sent to the hearing aid through the Bluetooth connection to adjust the volume of the hearing aid. Therefore, the above embodiment can adjust the volume value of the hearing aid according to the volume value of the display device and the ambient sound adaptability, so that the volume value of the hearing aid matches the loudness of the ambient sound.

[0133] Figure 9 The diagram above illustrates, for example, the interactive flow of the volume adjustment method provided in the embodiments of this application. Figure 9 As shown, the volume adjustment method provided in this application includes the following steps:

[0134] S901, The display device receives the first volume adjustment command.

[0135] S902. The display device adjusts its volume according to the first volume adjustment command.

[0136] S903. The display device determines whether it has established a Bluetooth connection with a hearing aid that supports hearing aid services.

[0137] In step S903 above, if the display device has not established a Bluetooth connection with a hearing aid that supports hearing aid services, the volume adjustment method provided in this embodiment ends, and the volume of the display is adjusted only according to the received volume adjustment command. However, if the display device has established a Bluetooth connection with a hearing aid that supports hearing aid services, then step S904 is executed as follows:

[0138] S904, The display device acquires the first volume value and the second volume value.

[0139] Wherein, the first volume value is the volume value of the display device after the volume of the display device is adjusted according to the first volume adjustment command, and the second volume value is the volume value of the hearing aid.

[0140] The implementation methods of the above steps S901 to S904 are the same as Figure 7 The implementation of steps S71 to S74 in the illustrated embodiment is similar and will not be repeated here.

[0141] S905, The display device obtains the first volume difference.

[0142] Wherein, the first volume difference is the absolute value of the difference between the first volume value and the second volume value.

[0143] For example: after adjusting the volume of the display device according to the first volume adjustment command, the volume value of the display device is 8 and the volume value of the hearing aid is 5. Then, the first volume value is determined to be 8 and the second volume value is 5, and the first volume difference is calculated to be 3.

[0144] For example: after adjusting the volume of the display device according to the first volume adjustment command, the volume value of the display device is 4 and the volume value of the hearing aid is 6. Then, the first volume value is determined to be 6 and the second volume value is 4, and the first volume difference is calculated to be 2.

[0145] S906. The display device determines whether the first volume difference is greater than a preset threshold.

[0146] The preset threshold in this embodiment can be set according to the synchronization requirements of the display device volume value and the hearing aid volume value. If the synchronization requirements of the display device volume value and the hearing aid volume value are relatively low, the preset threshold can be set to a larger value. If the synchronization requirements of the display device volume value and the hearing aid volume value are relatively high, the preset threshold can be set to a smaller value.

[0147] For example, the preset threshold can be 0, 1, 2, 3, etc. When the preset threshold is set to 0, it means that the volume value of the display device is required to be completely synchronized with the volume value of the hearing aid. As long as the volume value of the display device is different from the volume value of the hearing aid, it is determined that the condition for adjusting the volume of the hearing aid is met.

[0148] In step S906 above, if the first volume difference is not greater than the preset threshold, then step S907 is executed, and the method flow of the volume adjustment method provided in this application embodiment ends.

[0149] S907, The display device determines that the conditions for adjusting the volume of the hearing aid are not met.

[0150] In step S906 above, if the first volume difference is greater than the preset threshold, then step S908 and subsequent steps are executed:

[0151] S908, The display device determines that the conditions for adjusting the volume of the hearing aid are met.

[0152] S909, The display device acquires the loudness of ambient sound.

[0153] S910, The display device obtains the target volume value based on the loudness of the ambient sound and a preset mapping relationship.

[0154] The preset mapping relationship includes the mapping relationship between the loudness and volume value of each ambient sound.

[0155] In some embodiments, the preset mapping relationship can be stored in the display device in the form of a correspondence table. The display device obtains the target volume value according to the loudness of the ambient sound and the preset mapping relationship by: obtaining the volume value corresponding to the loudness of the ambient sound as the target volume value by looking up the table.

[0156] For example, when the preset mapping relationship is a mapping relationship table, the mapping relationship table can be as shown in Table 1 below:

[0157] Table 1

[0158] Loudness of ambient sound Corresponding volume value [0,20]dB 1 (20,30]dB 2 (30,35]dB 3 (35,40]dB 4 (40,45]dB 5 (45,50]dB 6 (55,60]dB 7 (65,70]dB 8 (70,80]dB 9 (80,+∞)dB 10

[0159] If the preset mapping relationship is as shown in Table 1 above, then when the loudness of the ambient sound is 58dB, the target volume value can be determined to be 7; when the loudness of the ambient sound is 47dB, the target volume value can be determined to be 6.

[0160] S911, The display device generates the second volume adjustment command based on the target volume value and the second volume value.

[0161] In some embodiments, the generation of the second volume adjustment command based on the target volume value and the second volume value includes the following steps a and b:

[0162] Step a: Obtain the second volume difference.

[0163] Wherein, the second volume difference is the absolute value of the difference between the target volume value and the second volume value.

[0164] For example, if the target volume value is 7 and the second volume value (the volume value of the hearing aid) is 5, then the second volume difference can be obtained as 2.

[0165] For example, if the target volume value is 3 and the second volume value (the volume value of the hearing aid) is 6, then the second volume difference can be obtained as 3.

[0166] Step b: Generate the second volume difference volume adjustment command to control the volume value of the hearing aid to increase or decrease.

[0167] For example, if the target volume value is 7 and the second volume value is 5, then the second volume difference can be obtained as 2, and two volume adjustment commands can be generated to control the volume value of the hearing aid to increase by 1.

[0168] For example, if the target volume value is 3 and the second volume value is 6, then the second volume difference can be obtained as 3, and 3 volume adjustment commands can be generated to control the volume value of the hearing aid to decrease by 1.

[0169] S912, The display device sends the second volume adjustment command to the hearing aid via the Bluetooth connection.

[0170] Accordingly, the hearing aid receives a second volume adjustment command sent by the display device via the Bluetooth connection.

[0171] S913, The hearing aid adjusts the volume according to the second volume adjustment command.

[0172] Figure 10 The diagram above illustrates, for example, the interactive flow of the volume adjustment method provided in the embodiments of this application. Figure 10As shown, the volume adjustment method provided in this application includes the following steps:

[0173] S101, The display device receives the first volume adjustment command.

[0174] S102. The display device adjusts its volume according to the first volume adjustment command.

[0175] S103. The display device determines whether it has established a Bluetooth connection with a hearing aid that supports hearing aid services.

[0176] In step S103 above, if the display device has not established a Bluetooth connection with a hearing aid that supports hearing aid services, the volume adjustment method provided in this embodiment ends, and the volume of the display is adjusted only according to the received volume adjustment command. However, if the display device has established a Bluetooth connection with a hearing aid that supports hearing aid services, then step S104 is executed as follows:

[0177] S104, The display device acquires the first volume value and the second volume value.

[0178] Wherein, the first volume value is the volume value of the display device after the volume of the display device is adjusted according to the first volume adjustment command, and the second volume value is the volume value of the hearing aid.

[0179] The implementation methods of the above steps S101 to S104 are the same as Figure 7 The implementation of steps S71 to S74 in the illustrated embodiment is similar and will not be repeated here.

[0180] S105, The display device obtains the first volume difference.

[0181] Wherein, the first volume difference is the absolute value of the difference between the first volume value and the second volume value.

[0182] S106. The display device determines whether the first volume difference is greater than a preset threshold.

[0183] In step S106 above, if the first volume difference is not greater than the preset threshold, then step S107 is executed, and the method flow of the volume adjustment method provided in this application embodiment ends.

[0184] S107. The display device determines that the conditions for adjusting the volume of the hearing aid are not met.

[0185] In step S106 above, if the first volume difference is greater than the preset threshold, then step S108 and subsequent steps are executed:

[0186] S108. The display device determines that the conditions for adjusting the volume of the hearing aid are met.

[0187] S109. The display device acquires the loudness of ambient sound.

[0188] S110, The display device obtains the target volume value based on the loudness of the ambient sound and a preset mapping relationship.

[0189] The preset mapping relationship includes the mapping relationship between the loudness and volume value of each ambient sound.

[0190] S111, The display device generates a volume adjustment command for controlling the volume value of the hearing aid to be adjusted to the target volume value.

[0191] For example, if the target volume value is 8, a volume adjustment command can be generated to control the volume of the hearing aid to be adjusted to 8.

[0192] For example, if the target volume value is 6, a volume adjustment command can be generated to control the volume of the hearing aid to be adjusted to 6.

[0193] S112. The display device sends the second volume adjustment command to the hearing aid via the Bluetooth connection.

[0194] Accordingly, the hearing aid receives a second volume adjustment command sent by the display device via the Bluetooth connection.

[0195] S113. The hearing aid adjusts the volume according to the second volume adjustment command.

[0196] Figure 11 The diagram illustrates, exemplarily, the interactive flow of another volume adjustment method provided in an embodiment of this application, such as... Figure 11 As shown, the volume adjustment method provided in this application includes the following steps:

[0197] S1101, Hearing aid broadcast is a broadcast packet used to request the establishment of a Bluetooth connection.

[0198] The broadcast packet carries the appearance attribute field of the hearing aid.

[0199] For example, when the hearing aid is a non-specific type of hearing aid, the appearance attribute field carried by the broadcast package can be "Hearing Aid"; when the hearing aid is a generic hearing aid, the appearance attribute field carried by the broadcast package can be "Generic Hearing Aid"; when the hearing aid is an in-ear hearing aid, the appearance attribute field carried by the broadcast package can be "In-ear Hearing Aid"; and when the hearing aid is a behind-the-ear hearing aid, the appearance attribute field carried by the broadcast package can be "Behind-ear Hearing Aid".

[0200] Since the broadcast packet is sent via broadcast, when the display device is within the broadcast packet transmission range of the hearing aid, the display device can receive the broadcast packet sent by the hearing aid requesting to establish a Bluetooth connection with the display device.

[0201] S1102. The display device parses the broadcast packet to obtain the appearance attribute field carried by the broadcast packet.

[0202] That is, the display device extracts the fields corresponding to the appearance attribute fields according to the Bluetooth configuration protocol, thereby obtaining the appearance attribute fields carried by the broadcast packet.

[0203] S1103. The display device determines whether the appearance attribute field belongs to a preset appearance attribute field set.

[0204] The preset appearance attribute field set includes appearance attribute fields for at least one type of hearing aid.

[0205] It should be noted that, in order to more accurately identify whether a Bluetooth paired device is a hearing aid, the preset appearance attribute field set should include appearance attribute fields for various types of hearing aids as much as possible. In some embodiments, the preset appearance attribute field set may include appearance attribute fields for hearing aids such as "Hearing Aid", "Generic Hearing Aid", "In-ear Hearing Aid", and "Behind-ear Hearing Aid".

[0206] In step S1103 above, if the appearance attribute field does not belong to the preset appearance attribute field set, it can be determined that the currently requesting pairing device is not a hearing aid. Therefore, the system attribute method can be used to mark the currently connected Bluetooth device as not a hearing aid, and this information is synchronized to the audio control module, as well as to establish a Bluetooth connection with the requesting pairing device. Upon receiving a volume adjustment command subsequently, the audio control module adjusts the volume of the display device only according to the received volume adjustment command.

[0207] In step S1103 above, if the appearance attribute field belongs to a preset set of appearance attribute fields, then step S1104 is executed as follows:

[0208] S1104. The display device determines whether the pairing request device supports the hearing aid service.

[0209] In some embodiments, the display device may determine whether the pairing request device (hearing aid) supports the implementation of the hearing aid service by including the following steps 1 to 5:

[0210] Step 1: During the process of establishing a Bluetooth connection with the pairing request device, the display device sends a service query request to the pairing request device.

[0211] Step 2: The pairing request device sends a service query response to the display device.

[0212] The service query response carries a universally unique identifier (UUID) for each service supported by the pairing request device.

[0213] That is, if the hearing aid supports HAS, the UUID of HAS will be included in the service query response; if the hearing aid does not support HAS, the UUID of HAS will not be included in the service query response.

[0214] In some embodiments, the display device may send a service query request to the pairing request device via the Attribute Protocol (ATT), and the pairing request device may also send a service query response to the display device via the ATT.

[0215] In some embodiments, the service query response may be as shown in Table 2 below:

[0216] Table 2

[0217]

[0218] Step 3: Determine whether the service query response carries the universally unique identifier of the hearing aid service.

[0219] In some embodiments, the UUID of the hearing aid service is 0x1855. Therefore, determining whether the service query response carries the universally unique identifier of the hearing aid service is to determine whether the service query response carries a UUID of 0x1855.

[0220] In step 3 above, if the service query response carries the universally unique identifier of the hearing aid service, then proceed to step 4; otherwise, if the service query response does not carry the universally unique identifier of the hearing aid service, then proceed to step 5.

[0221] Step 4: The display device determines that the pairing request device supports the hearing aid service.

[0222] Step 5: The display device determines that the pairing request device does not support the hearing aid service.

[0223] If the display device determines that the pairing request device supports the hearing aid service, the display device can mark the currently connected Bluetooth device as a hearing aid that supports the hearing aid service through system properties and synchronize this information with the audio control module. If the display device determines that the pairing request device does not support the hearing aid service, the display device can mark the currently connected Bluetooth device as a hearing aid that supports the hearing aid service through system properties and synchronize this information with the audio control module.

[0224] In step S1104 above, if the display device determines that the pairing request device supports the hearing aid service, then step S1105 is executed.

[0225] S1105. After establishing a Bluetooth connection with the pairing request device, the display device determines that the display device has established a Bluetooth connection with the hearing aid that supports hearing aid services.

[0226] S1106, The display device receives the first volume adjustment command.

[0227] S1107. The display device adjusts the volume of the display device according to the first volume adjustment command.

[0228] S1108, The display device acquires the first volume value and the second volume value.

[0229] S1109. The display device determines whether the hearing aid volume adjustment conditions are met based on the first volume value and the second volume value.

[0230] In step S1109 above, if it is determined based on the first volume value and the second volume value that the hearing aid volume adjustment condition is not met, the volume adjustment method provided in this application embodiment ends. If it is determined based on the first volume value and the second volume value that the condition for adjusting the hearing aid volume is met, then step S1110 is executed as follows:

[0231] S1110, The display device acquires the loudness of ambient sound.

[0232] S1111 The display device generates a second volume adjustment command based on the loudness of the ambient sound.

[0233] S1112. The display device sends the second volume adjustment command to the hearing aid via the Bluetooth connection.

[0234] Accordingly, the hearing aid receives a second volume adjustment command sent by the display device via the Bluetooth connection.

[0235] S1113. The hearing aid adjusts the volume according to the second volume adjustment command.

[0236] In some embodiments, this application provides a computer-readable storage medium storing a computer program that, when executed by a computing device, causes the computing device to implement the volume adjustment method described in any of the above embodiments.

[0237] In some embodiments, this application provides a computer program product that, when run on a computer, enables the computer to implement the volume adjustment method described in any of the above embodiments.

[0238] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0239] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A display device, characterized in that, include: A monitor is used to display the user interface. A communicator used to communicate with external devices; Detectors are used to collect signals from the external environment; The user interface is used to receive control signals input by the user. The controller is configured as follows: The volume of the display device is adjusted according to the first volume adjustment command received from the user interface, and when the display device has established a Bluetooth connection with a hearing aid that supports Low Power Audio (LE Audio) and HAS, a first volume value and a second volume value are obtained; the first volume value is the volume value of the display device after adjusting the volume of the display device according to the first volume adjustment command, and the second volume value is the volume value of the hearing aid. If, based on the first volume value and the second volume value, it is determined that the conditions for adjusting the volume of the hearing aid are met, the detector is controlled to acquire the loudness of the ambient sound. The system generates a second volume adjustment command based on the loudness of the ambient sound and controls the communicator to send the second volume adjustment command to the hearing aid based on the LEAudio hearing aid service, so as to adjust the volume of the hearing aid.

2. The display device according to claim 1, characterized in that, The controller is specifically configured as follows: Obtain the first volume difference, which is the absolute value of the difference between the first volume value and the second volume value; Determine whether the first volume difference is greater than a preset threshold; If so, then the condition for adjusting the volume of the hearing aid is met; If not, then the conditions for adjusting the volume of the hearing aid are not met.

3. The display device according to claim 1, characterized in that, The controller is specifically configured as follows: The target volume value is obtained based on the loudness of the ambient sound and a preset mapping relationship; the preset mapping relationship includes the mapping relationship between the loudness and volume value of each ambient sound. The second volume adjustment command is generated based on the target volume value and the second volume value.

4. The display device according to claim 3, characterized in that, The controller is specifically configured as follows: Obtain the second volume difference, which is the absolute value of the difference between the target volume value and the second volume value; The second volume difference is generated as a volume adjustment command to control the volume value of the hearing aid to increase or decrease.

5. The display device according to claim 1, characterized in that, The controller is specifically configured as follows: The target volume value is obtained based on the loudness of the ambient sound and a preset mapping relationship; the preset mapping relationship includes the mapping relationship between the loudness and volume value of each ambient sound. Generate a volume adjustment command to control the volume of the hearing aid to be adjusted to the target volume value.

6. The display device according to claim 1, characterized in that, The controller is specifically configured as follows: When a broadcast packet sent by a pairing request device to request the establishment of a Bluetooth connection with the display device is received, the broadcast packet is parsed to obtain the appearance attribute field carried by the broadcast packet. Determine whether the appearance attribute field belongs to a preset appearance attribute field set, the preset appearance attribute field set including appearance attribute fields of at least one type of hearing aid; If the appearance attribute field belongs to the preset appearance attribute field set, then it is determined whether the pairing request device supports the hearing aid service; If the pairing request device supports the hearing aid service, then after establishing a Bluetooth connection with the pairing request device, it is determined that the display device has established a Bluetooth connection with the hearing aid that supports the hearing aid service.

7. The display device according to claim 6, characterized in that, The controller is also configured to: During the process of establishing a Bluetooth connection with the pairing requesting device, the communicator is controlled to send a service query request to the pairing requesting device and receive a service query response sent by the pairing requesting device. The service query response carries a universal and unique identifier for each service supported by the pairing requesting device. Determine whether the service query response carries the universally unique identifier of the hearing aid service; if the service query response carries the universally unique identifier of the hearing aid service, then determine that the pairing request device supports the hearing aid service; if the service query response does not carry the universally unique identifier of the hearing aid service, then determine that the pairing request device does not support the hearing aid service.

8. A hearing aid, characterized in that, include: A communicator used to communicate with external devices; The controller is configured as follows: The communicator broadcasts a broadcast packet requesting the establishment of a Bluetooth connection, the broadcast packet carrying the appearance attribute field of the hearing aid; During the process of establishing a Bluetooth connection with the display device, the communicator receives a service query request sent by the display device, and when the hearing aid supports the Hearing Aid Service (HAS) with Low Power Audio (LE Audio), the communicator sends a service query response carrying a universally unique identifier for the hearing aid service to the display device. After establishing a Bluetooth connection with the display device, the communicator is controlled to receive volume adjustment commands sent by the display device based on the LE Audio hearing aid service; Adjust the volume according to the volume adjustment command.

9. A volume adjustment method, characterized in that, Applied to a display device, the method includes: Receive the first volume adjustment command; The volume of the display device is adjusted according to the first volume adjustment command; When the display device establishes a Bluetooth connection with a hearing aid that supports the Hearing Aid Service (HAS) for Low Power Audio (LE Audio), a first volume value and a second volume value are obtained; the first volume value is the volume value of the display device after adjusting the volume of the display device according to the first volume adjustment command, and the second volume value is the volume value of the hearing aid. The loudness of the ambient sound is obtained when the conditions for adjusting the volume of the hearing aid are met based on the first volume value and the second volume value. A second volume adjustment command is generated based on the loudness of the ambient sound; The LE Audio hearing aid service sends the second volume adjustment command to the hearing aid to adjust the volume of the hearing aid.

10. A volume adjustment method, characterized in that, Applied to hearing aids, the method includes: The broadcast packet is used to request the establishment of a Bluetooth connection, and the broadcast packet carries the appearance attribute field of the hearing aid; During the process of establishing a Bluetooth connection with the display device, the system receives a service query request sent by the display device, and if the hearing aid supports the Hearing Aid Service (HAS) with Low Power Audio (LE Audio), the system sends a service query response carrying a universally unique identifier for the hearing aid service to the display device. After establishing a Bluetooth connection with the display device, the hearing aid service based on LE Audio receives volume adjustment commands sent by the display device; Adjust the volume according to the volume adjustment command.

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