Display device and method for establishing a communication connection with a power amplifier device

Abstract

The application discloses a display device and a method for establishing a communication connection with a power amplifier device. When it is detected that the power amplifier device is accessed, a first initialization process corresponding to an e-ARC power amplifier device is executed. The first initialization process includes outputting a Hotplug signal of a high level and listening whether a common-mode data packet sent by the power amplifier device is received within a first preset time length. If the common-mode data packet is received within the first preset time length, the first initialization process is continuously executed to establish the communication connection with the power amplifier device. If the common-mode data packet is not received within the first preset time length, the first initialization process is terminated, and a second initialization process corresponding to an ARC power amplifier device is executed to establish the communication connection with the power amplifier device. It can be seen that no matter whether the accessed power amplifier device is an ARC power amplifier device or an e-ARC power amplifier device, the display device can dynamically switch the initialization process, finally establishes the communication connection with the accessed power amplifier device, and does not need to be manually set by a user, thereby improving user experience.

Description

[0001] This application is a divisional application of the Chinese patent with the application date of 2020-11-05 and the application number of 202011226522.5. TECHNICAL FIELD

[0002] The present application relates to the technical field of display devices, in particular to a display device and a method for establishing a communication connection with a power amplifier device. BACKGROUND

[0003] Nowadays, display devices can not only provide users with broadcast television programs (live television programs) through digital broadcasting, but also provide users with more abundant content and services such as network videos and network games based on online interactive media, Internet televisions and on-demand streaming media.

[0004] Display devices include an HDMI ARC interface, and external power amplifier devices supporting ARC can access the display devices through the interface and HDMI harnesses. The display devices can then return audio signals to the power amplifier devices for signal amplification processing and output through a sound return technology. SUMMARY

[0005] The present application provides a display device and a method for establishing a communication connection with a power amplifier device, which can automatically identify the protocol type supported by the power amplifier device, and complete initialization interaction with the power amplifier device and establish a communication connection with the power amplifier device according to the protocol specification supported by the power amplifier device.

[0006] In a first aspect, the present application provides a display device, comprising:

[0007] a display;

[0008] a controller, the controller being connectable to a power amplifier device through an HDMI signal line, the controller being configured to:

[0009] when detecting that the power amplifier device is connected, performing a first initialization process corresponding to an e-ARC power amplifier device, the first initialization process comprising outputting a Hotplug signal at a high level and listening for whether a common-mode data packet sent by the power amplifier device is received within a first preset time period;

[0010] if the common-mode data packet is received within the first preset time period, continuing to perform the first initialization process to establish a communication connection with the power amplifier device;

[0011] if the common-mode data packet is not received within the first preset time period, terminating the first initialization process and performing a second initialization process corresponding to an ARC power amplifier device to establish a communication connection with the power amplifier device.

[0012] Further, the continuing to execute the first initialization procedure to establish a communication connection with the power amplifier device comprises:

[0013] sending a heartbeat packet to the power amplifier device, and listening whether a heartbeat response sent by the power amplifier device is received within a second preset time length;

[0014] if the heartbeat response of the power amplifier device is received within the second preset time length, outputting a low-level Hotplug signal, and connecting with the power amplifier device successfully.

[0015] Further, the continuing to execute the first initialization procedure to establish a communication connection with the power amplifier device further comprises:

[0016] if the heartbeat response of the power amplifier device is not received within the second preset time length, executing the second initialization procedure.

[0017] Further, the executing the second initialization procedure corresponding to the ARC power amplifier device comprises:

[0018] in the case of outputting the low-level Hotplug signal, sending a first command to the power amplifier device, the first command being used to wake up the power amplifier device and make the power amplifier device start a sound system working mode;

[0019] listening whether a first response sent by the power amplifier device is received within a third preset time length;

[0020] if the first response is received within the third preset time length, sending a second command to the power amplifier device;

[0021] listening whether a second response sent by the power amplifier device is received within a fourth preset time length;

[0022] if the second response is received within the fourth preset time length, connecting with the power amplifier device successfully.

[0023] In a second aspect, the application further provides a method for establishing a communication connection with a power amplifier device, the method comprising:

[0024] when detecting that the power amplifier device is accessed, executing a first initialization procedure corresponding to an e-ARC power amplifier device, the first initialization procedure comprising outputting a high-level Hotplug signal, and listening whether a common-mode data packet sent by the power amplifier device is received within a first preset time length;

[0025] if the common-mode data packet is received within the first preset time length, continuing to execute the first initialization procedure to establish a communication connection with the power amplifier device;

[0026] If the common mode data packet is not received within the first preset time length, the first initialization process is terminated, a second initialization process corresponding to the ARC power amplifier device is executed, and a communication connection is established with the power amplifier device.

[0027] Further, the first initialization process is continued to be executed to establish the communication connection with the power amplifier device, including:

[0028] A heartbeat packet is sent to the power amplifier device, and whether a heartbeat response sent by the power amplifier device is received within a second preset time length is listened to.

[0029] If the heartbeat response of the power amplifier device is received within the second preset time length, a low-level Hotplug signal is output, and the connection with the power amplifier device is successful.

[0030] Further, the first initialization process is continued to be executed to establish the communication connection with the power amplifier device, and further includes:

[0031] If the heartbeat response of the power amplifier device is not received within the second preset time length, the second initialization process is executed.

[0032] Further, the second initialization process corresponding to the ARC power amplifier device is executed, including:

[0033] In the case that the low-level Hotplug signal is output, a first command is sent to the power amplifier device, and the first command is used to wake up the power amplifier device and make the power amplifier device start a sound system working mode.

[0034] Whether a first response sent by the power amplifier device is received within a third preset time length is listened to.

[0035] If the first response is received within the third preset time length, a second command is sent to the power amplifier device.

[0036] Whether a second response sent by the power amplifier device is received within a fourth preset time length is listened to.

[0037] If the second response is received within the fourth preset time length, the connection with the power amplifier device is successful.

[0038] According to the technical solution, the display device and the method for establishing a communication connection with the power amplifier device are provided. When the power amplifier device is detected to be connected, a first initialization process corresponding to the e-ARC power amplifier device is performed. The first initialization process includes outputting a Hotplug signal with a high level and listening whether a common-mode data packet sent by the power amplifier device is received within a first preset time period. If the common-mode data packet is received within the first preset time period, the first initialization process is continuously performed to establish a communication connection with the power amplifier device. If the common-mode data packet is not received within the first preset time period, the first initialization process is terminated, and a second initialization process corresponding to the ARC power amplifier device is performed to establish a communication connection with the power amplifier device. It can be seen that, no matter whether the connected power amplifier device is the ARC power amplifier device or the e-ARC power amplifier device, the display device can dynamically switch the initialization process to finally establish a communication connection with the connected power amplifier device, without manual setting by the user, thereby improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0040] Figure 1 In the example, a schematic diagram of an operating scenario between a display device and a control device according to some embodiments is exemplarily shown;

[0041] Figure 2 In the example, a hardware configuration block diagram of the display device 200 according to some embodiments is exemplarily shown;

[0042] Figure 3 In the example, a hardware configuration block diagram of the control device 100 according to some embodiments is exemplarily shown;

[0043] Figure 4 In the example, a software configuration schematic diagram in the display device 200 according to some embodiments is exemplarily shown;

[0044] Figure 5 In the example, an icon control interface display schematic diagram of an application program in the display device 200 according to some embodiments is exemplarily shown;

[0045] Figure 6 In the example, a schematic diagram of a scenario in which a power amplifier device is connected to a display device according to some embodiments is shown;

[0046] Figure 7 In the example, a hardware connection schematic diagram of a power amplifier device and a display device according to some embodiments is shown;

[0047] Figure 8Fig. 1 is a schematic diagram of a hardware connection between a power amplifier device and a display device in some embodiments of the present application;

[0048] Figure 9 Fig. 2 is a flow chart of a method of establishing a communication connection with a power amplifier device in some embodiments of the present application. DETAILED DESCRIPTION

[0049] The embodiments will be described in detail with reference to the drawings, wherein like reference numerals refer to like parts throughout the several views. The following detailed description is presented in terms of some embodiments consistent with the present application. There are advantages to such a presentation when the subject matter is being set forth in terms of the functional operations and features that are involved in accomplishing the processes, or when the description is being set forth in terms of steps or stages utilized in the execution of the processes. As one skilled in the art will appreciate, the processes presented can not necessarily be executed in the precise order described, or as described or illustrated by the exemplary embodiments. Furthermore, certain environmental impact, such as the use of energy, is not necessarily addressed in the following description.

[0050] All other embodiments obtained by those of ordinary skill in the art based on the example embodiments described herein without creative work are within the scope of the claims of the present application. In addition, although the disclosure herein is introduced according to one or more examples, it should be understood that each aspect of the disclosure can also constitute a complete embodiment by itself.

[0051] It should be noted that the brief description of terms in the present application is only for the convenience of understanding the following described embodiments, and is not intended to limit the embodiments of the present application. Unless otherwise stated, these terms should be understood according to their ordinary and general meanings.

[0052] The terms "first", "second", "third", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar or like objects or entities, and do not necessarily mean a specific order or sequence, unless otherwise indicated. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, for example, those other than the order given in the embodiment illustrations or descriptions of the present application can be implemented.

[0053] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclusive inclusion, for example, a product or device including a series of components does not necessarily limit to those components clearly listed, but can include other components not clearly listed or inherent to such products or devices.

[0054] The term "module" used in the present application refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or a combination of hardware or / and software code capable of performing a function associated with the element.

[0055] The term "remote controller" used in the present application refers to a component of an electronic device (such as the display device disclosed in the present application), which can generally control the electronic device wirelessly within a short distance range. It is generally connected to the electronic device using infrared and / or radio frequency (RF) signals and / or Bluetooth, and can also include WiFi, wireless USB, Bluetooth, motion sensor, and other functional modules. For example, a handheld touch remote controller replaces most of the physical built-in hard keys in a general remote control device with a user interface in a touch screen.

[0056] The term "gesture" used in the present application refers to a user behavior for expressing an intended idea, action, purpose, or result through a change in hand shape or hand movement.

[0057] Figure 1 The exemplary schematic diagram of the operation scenario between the display device and the control device in the embodiments is shown in FIG. 1. As shown in FIG. 1, Figure 1 As shown in FIG. 2, the user can operate the display device 200 through the mobile terminal 300 and the control device 100.

[0058] In some embodiments, the control device 100 can be a remote controller, and the communication between the remote controller and the display device includes infrared protocol communication or Bluetooth protocol communication, and other short-distance communication methods, etc., to control the display device 200 wirelessly or through other wired ways. The user can input user instructions through the keys on the remote controller, voice input, control panel input, etc., to control the display device 200. For example, the user can input corresponding control instructions through the volume up / down keys, channel control keys, up / down / left / right movement keys, voice input keys, menu keys, power on / off keys, etc., on the remote controller, to realize the function of controlling the display device 200.

[0059] In some embodiments, the mobile terminal, tablet computer, computer, notebook computer, and other smart devices can also be used to control the display device 200. For example, an application running on a smart device is used to control the display device 200. The application can provide various controls for the user in an intuitive user interface (UI) on the screen associated with the smart device through configuration.

[0060] In some embodiments, the mobile terminal 300 can install a software application with the display device 200, realize connection communication through a network communication protocol, and achieve the purpose of one-to-one control operation and data communication. For example, the mobile terminal 300 and the display device 200 can establish a control instruction protocol, synchronize the remote control keyboard to the mobile terminal 300, control the user interface on the mobile terminal 300, and realize the function of controlling the display device 200. The audio and video content displayed on the mobile terminal 300 can also be transmitted to the display device 200 to realize the function of synchronous display.

[0061] AsFigure 1 It is also shown that the display device 200 also communicates data with the server 400 through various communication means. The display device 200 can be allowed to communicate through a local area network (LAN), a wireless local area network (WLAN) and other networks. The server 400 can provide various content and interaction to the display device 200. For example, the display device 200 receives software program updates, or accesses a remotely stored digital media library by sending and receiving information, and electronic program guide (EPG) interaction. The server 400 can be a cluster, or multiple clusters, and can include one or more types of servers. The server 400 can provide video on demand and advertising services, and other network service content.

[0062] The display device 200 can be a liquid crystal display, an OLED display, or a projection display device. The specific display device type, size, resolution, etc. are not limited, and those skilled in the art can understand that the display device 200 can be changed in performance and configuration as needed.

[0063] In addition to providing broadcast receiving television functions, the display device 200 can also provide smart network television functions that support computer functions, including but not limited to network televisions, smart televisions, Internet protocol televisions (IPTV), etc.

[0064] Figure 2 The hardware configuration block diagram of the display device 200 according to the exemplary embodiments is exemplarily shown in the figure.

[0065] In some embodiments, the display device 200 includes at least one of a controller 250, a tuner demodulator 210, a communicator 220, a detector 230, an input / output interface 255, a display 275, an audio output interface 285, a memory 260, a power supply 290, a user interface 265, and an external device interface 240.

[0066] In some embodiments, the display 275 is configured to receive image signals originating from the first processor output, and display video content and image and menu control interface components.

[0067] In some embodiments, the display 275 includes a display screen component for presenting a picture, and a driving component for driving the image display.

[0068] In some embodiments, the display video content can be from broadcast television content, or alternatively, various broadcast signals received through wired or wireless communication protocols. Alternatively, various image content received from a network server can be displayed from a network communication protocol.

[0069] In some embodiments, the display 275 is used to present a user manipulation UI interface generated in the display device 200 and used to control the display device 200.

[0070] In some embodiments, according to the type of display 275, a driving component for driving the display is also included.

[0071] In some embodiments, the display 275 is a projection display, and can also include a projection device and a projection screen.

[0072] In some embodiments, the communicator 220 is a component for communicating with external devices or external servers according to various communication protocol types. For example, the communicator can include at least one of a Wifi chip, a Bluetooth communication protocol chip, a wired Ethernet communication protocol chip, other network communication protocol chips or near field communication protocol chips, and an infrared receiver.

[0073] In some embodiments, the display device 200 can establish control signal and data signal transmission and reception between the external control device 100 or the content providing device through the communicator 220.

[0074] In some embodiments, the user interface 265 can be used to receive infrared control signals of the control device 100 (such as an infrared remote control).

[0075] In some embodiments, the detector 230 is a signal used by the display device 200 to collect the external environment or interact with the outside.

[0076] In some embodiments, the detector 230 includes a light receiver for collecting the intensity of ambient light, and can adaptively change display parameters by collecting ambient light.

[0077] In some embodiments, the detector 230 can also include an image collector, such as a camera, a camera, etc., which can be used to collect the external environment scene, and can be used to collect the attributes of the user or the interaction gestures with the user, and can adaptively change the display parameters, and can also identify the user gestures to realize the function of interaction with the user.

[0078] In some embodiments, the detector 230 can also include a temperature sensor, etc., such as by sensing the ambient temperature.

[0079] In some embodiments, the display device 200 can adaptively adjust the display color temperature of the image. For example, when the temperature of the environment is high, the display color temperature of the image displayed by the display device 200 can be adjusted to be cold, or when the temperature of the environment is low, the display color temperature of the image displayed by the display device 200 can be adjusted to be warm.

[0080] In some embodiments, the detector 230 can also be a sound collector such as a microphone, which can be used to receive the user's voice. For example, a voice signal including a control instruction for controlling the display device 200, or collect environmental sound for identifying the environmental scene type, so that the display device 200 can adapt to the environmental noise.

[0081] In some embodiments, as shown in FIG. 2B, the input / output interface 255 is configured to transmit data between the controller 250 and other external devices or other controllers 250. For example, receiving video signal data and audio signal data of the external device, or command instruction data, etc. Figure 2

[0082] In some embodiments, the external device interface 240 can include, but is not limited to, any one or more of the following: a high-definition multimedia interface (HDMI) interface, an analog or digital high-definition component input interface, a composite video input interface, a USB input interface, an RGB port, etc. The above-mentioned multiple interfaces can also form a composite input / output interface.

[0083] In some embodiments, as shown in FIG. 2B, the tuner demodulator 210 is configured to receive broadcast television signals through wired or wireless reception, and can perform amplification, mixing, and resonance demodulation processing to demodulate audio and video signals from multiple wireless or wired broadcast television signals. The audio and video signals can include television audio and video signals carried in the user-selected television channel frequency, as well as EPG data signals. Figure 2

[0084] In some embodiments, the frequency demodulated by the tuner demodulator 210 is controlled by the controller 250, which can send a control signal according to the user's selection to make the demodulator respond to the user's selection of the television signal frequency and demodulate the television signal carried by the frequency.

[0085] In some embodiments, broadcast television signals can be distinguished according to different television signal broadcast standards, such as terrestrial broadcast signals, cable broadcast signals, satellite broadcast signals, or Internet broadcast signals, etc. Or according to the modulation type, it can be distinguished as digital modulation signal, analog modulation signal, etc. Or according to the signal type, it can be distinguished as digital signal, analog signal, etc.

[0086] In some embodiments, the controller 250 and the tuner demodulator 210 can be located in different separate devices, i.e. the tuner demodulator 210 can also be in an external device of the main body device where the controller 250 is located, such as an external set-top box, etc. In this way, the set-top box outputs the television audio and video signals demodulated from the received broadcast television signals to the main body device, and the main body device receives the audio and video signals through the first input / output interface.

[0087] ​​In some embodiments, controller 250 controls the operation of the display device and responds to user operations via various software control programs stored in memory. Controller 250 can control the overall operation of display device 200. For example, in response to receiving a user command to select a UI object for display on display 275, controller 250 can perform operations related to the object selected by the user command.

[0088] In some embodiments, the object can be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, for example, displaying a page, document, image connected to the hyperlink, or executing a program corresponding to the icon. User commands for selecting UI objects can be commands input through various input devices connected to the display device 200 (e.g., a mouse, keyboard, touchpad, etc.) or voice commands corresponding to voice spoken by the user.

[0089] like Figure 2 As shown, the controller 250 includes at least one of a random access memory 251 (RAM), a read-only memory 252 (ROM), a video processor 270, an audio processor 280, other processors 253 (e.g., a graphics processing unit (GPU), a central processing unit (CPU) 254), a communication interface (Communication Interface), and a communication bus 256 (Bus). The communication bus connects the various components.

[0090] In some embodiments, RAM 251 is used to store temporary data for the operating system or other running programs.

[0091] In some embodiments, ROM 252 is used to store various system startup instructions.

[0092] In some embodiments, ROM 252 is used to store a basic input / output system (BIOS), which is used to perform a power-on self-test on the system, initialize various functional modules in the system, run basic input / output drivers for the system, and boot the operating system.

[0093] In some embodiments, upon receiving the power-on signal, the display device 200 power supply starts to boot up, the CPU runs the system boot-up instructions in the ROM 252, copies the temporary data of the operating system stored in the memory to the RAM 251, so as to boot up or run the operating system. When the operating system boot-up is completed, the CPU copies the temporary data of various application programs stored in the memory to the RAM 251, and then, so as to boot up or run the various application programs.

[0094] In some embodiments, the processor 254 is configured to execute the operating system and application program instructions stored in the memory, and execute various application programs, data and contents according to various interactive instructions received from the external input, so as to finally display and play various audio and video contents.

[0095] In some exemplary embodiments, the processor 254 can include a plurality of processors. The plurality of processors can include a main processor and one or more sub-processors. The main processor is configured to perform some operations of the display device 200 in the pre-power-on mode and / or the operation of displaying the picture in the normal mode. The one or more sub-processors are configured to perform an operation in a standby mode or the like.

[0096] In some embodiments, the graphics processor 253 is configured to generate various graphical objects, such as icons, operation menus, and user input instruction display graphics, etc. The graphics processor 253 includes an operator configured to perform operations by receiving various interactive instructions from the user, and display various objects according to display attributes. The graphics processor 253 further includes a renderer configured to perform rendering on various objects obtained based on the operator, and the rendered objects are used for display on the display.

[0097] In some embodiments, the video processor 270 is configured to receive external video signals, and perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image synthesis, etc. according to the standard coding and decoding protocol of the input signals, so as to obtain signals that can be directly displayed or played on the display device 200.

[0098] In some embodiments, the video processor 270 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, etc.

[0099] The demultiplexing module is configured to perform demultiplexing processing on the input audio and video data stream, such as demultiplexing the input MPEG-2 into video signals and audio signals, etc.

[0100] The video decoding module is configured to perform processing on the demultiplexed video signals, including decoding and scaling processing, etc.

[0101] An image synthesis module, such as an image synthesizer, is configured to superimpose and mix the GUI signal generated by the graphics generator according to the user input or self-generation with the video image after scaling processing to generate an image signal for display.

[0102] A frame rate conversion module is configured to convert the input video frame rate, such as converting a 60Hz frame rate to a 120Hz frame rate or a 240Hz frame rate, and the conversion is usually implemented in the form of, for example, frame interpolation.

[0103] A display formatting module is configured to change the signal of the received video output signal after frame rate conversion to conform to the signal of the display format, such as an output RGB data signal.

[0104] In some embodiments, the graphics processor 253 can be integrated with the video processor, or can be separately arranged, and when integrated, can perform processing of the graphics signal output to the display, and when separated, can perform different functions, such as GPU + FRC (Frame Rate Conversion) architecture.

[0105] In some embodiments, the audio processor 280 is configured to receive external audio signals, decompress and decode the signals according to the standard codec protocol of the input signals, and perform noise reduction, digital-to-analog conversion, and amplification processing to obtain sound signals that can be played on a loudspeaker.

[0106] In some embodiments, the video processor 270 can include one or more chips. The audio processor can also include one or more chips.

[0107] In some embodiments, the video processor 270 and the audio processor 280 can be separate chips, or can be integrated with the controller in one or more chips.

[0108] In some embodiments, the audio output, under the control of the controller 250, receives the sound signal output by the audio processor 280, such as a loudspeaker 286, and in addition to the loudspeaker carried by the display device 200 itself, can be output to the external audio output terminal of the external device, such as an external audio interface or a headphone interface, and can also include a near-field communication module in the communication interface, such as a Bluetooth module for Bluetooth speaker sound output.

[0109] The power supply 290, under the control of the controller 250, provides power supply support for the display device 200 from the external power input. The power supply 290 can include a built-in power supply circuit installed inside the display device 200, or can be an external power supply installed outside the display device 200, and a power supply interface for providing an external power supply in the display device 200.

[0110] A user interface 265 receives a user input signal, and then transmits the received user input signal to the controller 250. The user input signal can be a remote controller signal received through an infrared receiver, and various user control signals can be received through the network communication module.

[0111] In some embodiments, the user inputs a user command through the control device 100 or the mobile terminal 300, and the user input interface displays a device 200 that responds to the user input according to the user input.

[0112] In some embodiments, the user can input a user command through a graphical user interface (GUI) displayed on the display 275, and the user input interface receives the user input command through the graphical user interface (GUI). Alternatively, the user can input a user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

[0113] In some embodiments, the "user interface" is a medium interface for interaction and information exchange between an application or an operating system and a user, which realizes the conversion between the internal form of information and the form that the user can accept. The commonly used form of the user interface is a graphical user interface (GUI), which refers to a user interface related to computer operation displayed in a graphical manner. It can be an icon, a window, a control, etc. interface element displayed in the display screen of an electronic device, and the control can include an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a widget, etc. visual interface element.

[0114] The memory 260 includes various software modules stored for driving the display device 200. For example, the various software modules stored in the first memory include at least one of a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.

[0115] The basic module is a bottom software module for signal communication between various hardware in the display device 200 and transmission of processing and control signals to an upper layer module. The detection module is a management module for collecting various information from various sensors or a user input interface, and performing digital-to-analog conversion and analysis management.

[0116] For example, the voice recognition module includes a voice analysis module and a voice command database module. The display control module is used to control the display to display the image content module, which can be used to play multimedia image content and UI interface information, etc. The communication module is used to control and communicate data between external devices. The browser module is used to execute data communication between servers. The service module is used to provide various services and various application programs. At the same time, the memory 260 also stores the received external data and user data, the images of various items in various user interfaces, and the visual effect diagram of the focus object, etc.

[0117] Figure 3 An exemplary configuration block diagram of the control device 100 according to an exemplary embodiment is shown. As shown, the control device 100 includes a controller 110, a communication interface 130, a user input / output interface, a memory, a power supply. Figure 3

[0118] The control device 100 is configured to control the display device 200, and can receive the user's input operation instructions, and convert the operation instructions into instructions that the display device 200 can recognize and respond to, and play a mediating role between the user and the display device 200. For example, the user operates the channel plus and minus keys on the control device 100, and the display device 200 responds to the channel plus and minus operation.

[0119] In some embodiments, the control device 100 can be a smart device. For example, the control device 100 can install various applications for controlling the display device 200 according to user needs.

[0120] In some embodiments, as shown, Figure 1 the mobile terminal 300 or other smart electronic devices can play a similar function of the control device 100 after installing the application for controlling the display device 200. For example, the user can install the application to provide various function keys or virtual buttons on the graphical user interface of the mobile terminal 300 or other smart electronic devices to realize the function of the physical keys of the control device 100.

[0121] The controller 110 includes a processor 112 and a RAM 113 and a ROM 114, a communication interface 130, and a communication bus. The controller is used to control the operation and operation of the control device 100, and the communication and cooperation between the internal components and the external and internal data processing functions.

[0122] ​The communication interface 130, under the control of the controller 110, realizes the communication of control signals and data signals between the display device 200. For example, the received user input signal is sent to the display device 200. The communication interface 130 can include at least one of a WiFi chip 131, a Bluetooth module 132, an NFC module 133, and other near field communication modules.

[0123] The user input / output interface 140, wherein the input interface includes at least one of a microphone 141, a touchpad 142, a sensor 143, a key 144, and other input interfaces. For example, the user can input user instructions through voice, touch, gesture, and pressing actions. The input interface converts the received analog signal into a digital signal, and the digital signal into a corresponding instruction signal, and sends it to the display device 200.

[0124] The output interface includes an interface for sending the received user instructions to the display device 200. In some embodiments, it can be an infrared interface or a radio frequency interface. For example, when it is an infrared signal interface, the user input instruction needs to be converted into an infrared control signal according to the infrared control protocol, and sent to the display device 200 through the infrared sending module. For example, when it is a radio frequency signal interface, the user input instruction needs to be converted into a digital signal, and then modulated according to the radio frequency control signal modulation protocol, and then sent to the display device 200 by the radio frequency sending terminal.

[0125] In some embodiments, the control device 100 includes at least one of the communication interface 130 and the input / output interface 140. The control device 100 is configured with a communication interface 130, such as a WiFi, Bluetooth, NFC, etc. module, which can encode the user input instruction through the WiFi protocol, or the Bluetooth protocol, or the NFC protocol, and send it to the display device 200.

[0126] The storage 190 is used to store various running programs, data and applications for driving and controlling the control device 200 under the control of the controller. The storage 190 can store various control signal instructions input by the user.

[0127] The power supply 180 is used to provide operating power support for each element of the control device 100 under the control of the controller. It can be a battery and related control circuit.

[0128] In some embodiments, the system can include a Kernel, a shell, a file system and applications. The Kernel, the shell and the file system together form a basic operating system structure, which allows users to manage files, run programs and use the system. After power on, the Kernel starts, activates the Kernel space, abstracts hardware, initializes hardware parameters, runs and maintains virtual memory, scheduler, signals and inter-process communication (IPC). After the Kernel starts, the Shell and user applications are loaded. The applications are compiled into machine code after starting, forming a process.

[0129] Referring to Figure 4 In some embodiments, the system is divided into four layers, from top to bottom, the Applications layer (referred to as "application layer" for short), the Application Framework layer (referred to as "framework layer" for short), the Android runtime and system library layer (referred to as "system runtime library layer" for short), and the Kernel layer.

[0130] In some embodiments, at least one application program runs in the application layer, which can be a window (Window) program, a system setting program, a clock program, a camera application, etc. provided by the operating system; or an application program developed by a third-party developer, such as a Hi-See program, a K-song program, a magic mirror program, etc. In specific implementation, the application program package in the application layer is not limited to the above examples, and can also include other application program packages, which are not limited by the embodiments of the present application.

[0131] The framework layer provides application programming interfaces (APIs) and programming frameworks for the application programs in the application layer. The application framework layer includes some pre-defined functions. The application framework layer is equivalent to a processing center, which decides the actions of the application programs in the application layer. The application programs can access the resources in the system and obtain the services of the system through the API interface in execution.

[0132] As Figure 4As shown, in the embodiment of the present application, the application framework layer includes managers, content providers, etc., wherein the manager includes at least one of the following modules: an activity manager (ActivityManager) is used to interact with all activities running in the system; a location manager (Location Manager) is used to provide system services or applications with access to system location services; a package manager (Package Manager) is used to retrieve various information related to the application package currently installed on the device; a notification manager (NotificationManager) is used to control the display and clearing of notification messages; a window manager (Window Manager) is used to manage icons, windows, toolbars, wallpapers, and desktop widgets on the user interface.

[0133] In some embodiments, the activity manager is used to: manage the life cycle of each application and the usual navigation back function, such as controlling the exit of the application (including switching the user interface currently displayed in the display window to the system desktop), opening, backing (including switching the user interface currently displayed in the display window to the upper-level user interface of the currently displayed user interface), etc.

[0134] In some embodiments, the window manager is used to manage all window programs, such as obtaining the display screen size, determining whether there is a status bar, locking the screen, capturing the screen, controlling display window changes (for example, shrinking the display window, shaking the display, distorting the display, etc.), etc.

[0135] In some embodiments, the system runtime layer provides support for the upper layer, namely the framework layer. When the framework layer is used, the Android operating system will run the C / C++ library contained in the system runtime layer to implement the functions to be implemented by the framework layer.

[0136] In some embodiments, the kernel layer is a layer between hardware and software. Figure 4 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, touch sensor, pressure sensor, etc.), etc.

[0137] In some embodiments, the core layer further includes a power driver module for performing power management.

[0138] In some embodiments, Figure 4 The software programs and / or modules corresponding to the software architecture in Figure 2 or Figure 3 In the first memory or the second memory shown.

[0139] In some embodiments, taking the magic mirror application (a photo taking application) as an example, when the remote control receiving device receives a remote control input operation, a corresponding hardware interrupt is sent to the kernel layer. The kernel layer processes the input operation into a raw input event (including the value of the input operation, the timestamp of the input operation, and the like). The raw input event is stored in the kernel layer. The application framework layer obtains the raw input event from the kernel layer, identifies the control corresponding to the input event according to the current position of the focus, and identifies that the input operation is a confirmation operation. The control corresponding to the confirmation operation is the control of the magic mirror application icon. The magic mirror application calls the interface of the application framework layer, starts the magic mirror application, and then starts the camera driver by calling the kernel layer, so as to realize capturing a still image or a video through the camera.

[0140] In some embodiments, taking a split screen operation as an example for a display device with a touch function, the display device receives an input operation (such as a split screen operation) of a user acting on the display screen. The kernel layer can generate a corresponding input event according to the input operation and report the event to the application framework layer. The activity manager of the application framework layer sets the window mode (such as a multi-window mode) corresponding to the input operation, as well as the window position and size, and the like. The window manager of the application framework layer draws a window according to the setting of the activity manager, and then sends the drawn window data to the display driver of the kernel layer, so that the display driver displays the corresponding application interface in different display areas of the display screen.

[0141] In some embodiments, as shown in Figure 5 The application layer includes at least one application program, which can display a corresponding icon control in the display, such as a live TV application program icon control, a video on demand application program icon control, a media center application program icon control, an application center icon control, a game application icon control, and the like.

[0142] In some embodiments, the live TV application program can provide live TV through different signal sources. For example, the live TV application program can use input from a cable TV, a wireless broadcast, a satellite service, or other types of live TV services to provide TV signals. In addition, the live TV application program can display a video of the live TV signal on the display device 200.

[0143] In some embodiments, the video on demand application program can provide videos from different storage sources. Unlike the live TV application program, the video on demand provides video display from certain storage sources. For example, the video on demand can come from a server side of cloud storage or from a local hard disk storage containing stored video programs.

[0144] In some embodiments, the media center application can provide various multimedia content playing applications. For example, the media center can provide various image or audio services that are different from live TV or video on demand, which can be accessed by the user through the media center application.

[0145] In some embodiments, the application center can provide storage of various applications. The applications can be a game, an application, or other applications that are related to a computer system or other devices but can run in a smart TV. The application center can obtain these applications from different sources, store them in a local storage, and then run them on the display device 200.

[0146] ARC, which stands for Audio Return Channel, is a traditional standard and protocol specification for sound return technology. In some embodiments, the HDMI interface of the display device supporting ARC includes an HDMI ARC interface, and the power amplifier device supporting ARC can be connected to the display device through the interface and the HDMI harness. The ARC-compatible display device is connected to the ARC-compatible display device using the HDMI harness, and an audio return channel can be established between the display device and the power amplifier device based on the ARC protocol specification. Through the established audio return channel, audio signals are sent from the display device to the power amplifier device, and the power amplifier device listens to the audio content from the display device, eliminating the need for additional composite audio cables or fiber optic cables.eARC, which stands for Enhanced Audio Return Channel, is a new generation of standard and protocol specification for sound return technology. ARC and eARC differ greatly in hardware and software protocols.

[0147] Figure 6 The scene diagram for the power amplifier device accessing the display device in some embodiments of the present application is shown in FIG. 6, in which the power amplifier device 600 is connected to the display device 200 through the HDMI harness. Figure 6

[0148] Figure 7 The hardware connection diagram between the power amplifier device and the display device in some embodiments of the present application is shown in FIG. 7, in which the display device 200 and the power amplifier device 600 support ARC function. As shown in FIG. 7, the sound return is completed using the Utility signal line, and the interaction command between the display device 200 and the power amplifier device 600 is completed through the CEC signal line. In this example, the transmission lines of audio data and command data are completely separated, and do not need to be controlled by software. The transmission of command data is a single-wire serial communication process, which is called CEC protocol. Figure 7 Figure 7

[0149] Figure 8 ​​​Fig. 1 is a schematic diagram of a hardware connection between a display device and a power amplifier device in some embodiments of the present application. Figure 8 In the example shown, the display device 200 and the power amplifier device 600 support eARC function. As shown in Fig. 2, the HPD signal line and the Utility signal line in the HDMI harness are configured as a differential signal pair, and both audio data and interactive data are transmitted by time-division multiplexing of the differential pair. In this example, the HPD signal line and the Utility signal line need to be configured as audio data differential signals by software when transmitting audio data, and configured as control data differential signals when performing interactive control, so as to realize differential signal communication. The command data transmitted in the interactive process is referred to as a COMMON Mode Data data packet. Figure 8 In the example shown in Fig. 2, the HPD signal line and the Utility signal line in the HDMI harness are configured as a differential signal pair, and both audio data and interactive data are transmitted by time-division multiplexing of the differential pair. In this example, the HPD signal line and the Utility signal line need to be configured as audio data differential signals by software when transmitting audio data, and configured as control data differential signals when performing interactive control, so as to realize differential signal communication. The command data transmitted in the interactive process is referred to as a COMMON Mode Data data packet.

[0150] In some embodiments, the display device is compatible with both ARC and eARC. That is, both the ARC-compatible power amplifier device and the eARC-compatible power amplifier device can be connected to the display device through the HDMI harness, and complete the initialization interactive process with the display device according to the ARC protocol specification or the eARC protocol specification, and finally establish an audio return channel.

[0151] In some embodiments, the ARC-compatible power amplifier device is referred to as an ARC power amplifier device, and the eARC-compatible power amplifier device is referred to as an eARC power amplifier device.

[0152] In some embodiments, when the ARC power amplifier device is connected to the display device, the user needs to manually set the display device to an ARC interactive mode, so that the display device completes the initialization interaction with the connected ARC power amplifier device based on the ARC protocol specification. When the eARC power amplifier device is connected to the display device, the user needs to manually set the display device to an eARC interactive mode, so that the display device completes the initialization interaction with the connected eARC power amplifier device based on the eARC protocol specification.

[0153] In some embodiments, when the controller 250 detects the access of the power amplifier device, a first initialization process corresponding to the e-ARC power amplifier device is performed, i.e., the initialization process specified in the eARC protocol specification. In the first initialization process, first, a high-level Hotplug signal is output at the Hotplug port, i.e., the level of the Hotplug signal is pulled up, and whether a common-mode data packet sent by the power amplifier device is received within a first preset time duration of pulling up the level of the Hotplug signal is listened to. If the accessed power amplifier device is an e-ARC power amplifier device, it will monitor the level state of the Hotplug signal of the display device in real time; when it is monitored that the display device outputs a high-level Hotplug signal, it will actively send a common-mode data packet to the display device; if the accessed power amplifier device is an ARC power amplifier device, it will not respond after the display device outputs a high-level Hotplug signal.

[0154] Therefore, the display device can preliminarily judge whether the accessed power amplifier device is an eARC power amplifier device or an ARC power amplifier device according to whether the common-mode data packet sent by the power amplifier device is received within the first preset time duration. If the display device receives the common-mode data packet within the first preset time duration, the first initialization process is continued to be executed, and if the display device does not receive the common-mode data packet within the first preset time duration, the first initialization process is terminated to be executed, and a second initialization process corresponding to the ARC power amplifier device, i.e., the initialization process specified in the ARC protocol specification, is started to be executed.

[0155] Exemplarily, the first preset time duration can be 20 ms.

[0156] In some embodiments, if the common-mode data packet sent by the power amplifier device is received within the first preset time duration, the controller 250 continues to execute the first initialization process, specifically including: sending a heartbeat packet to the power amplifier device, and listening to whether a heartbeat response sent by the power amplifier device is received within a second preset time duration after the heartbeat packet is sent; if the heartbeat response of the power amplifier device is received within the second preset time duration, it can be judged that the power amplifier device is an e-ARC power amplifier device, at this time, a low-level Hotplug signal is output at the Hotplug port, and the connection with the power amplifier device is successful.

[0157] In some embodiments, in the process of continuing to execute the first initialization process, if the heartbeat response sent by the power amplifier device is not received within the second preset time duration after the heartbeat packet is sent to the power amplifier device, it is considered that the power amplifier device is not an e-ARC power amplifier device, but an ARC power amplifier device, and therefore the second initialization process is executed.

[0158] Exemplarily, the second preset time duration can be 20 ms.

[0159] In some embodiments, the step of executing the second initialization procedure by the controller 250 comprises: firstly pulling down the level of the Hotplug signal of the Hotplug port, and then sending a first command, i.e., a set sound system mode request, to the power amplifier device, so as to wake up the power amplifier device when the power amplifier device is in standby and make the power amplifier device start the sound system working mode. After receiving the first command sent by the display device, the power amplifier device starts the sound system working mode and sends a first response, i.e., a set sound system mode response, to the display device. The controller 250 listens whether the first response sent by the power amplifier device is received within a third preset time period after the first command is sent to the power amplifier device. If the first response is received within the third preset time period, a second command, i.e., a set sound system working mode completion report, is sent to the power amplifier device. After receiving the second command sent by the display device, the power amplifier device sends a second response, i.e., a set sound system working mode completion response, to the display device. The controller 250 listens whether the second response sent by the power amplifier device is received within a fourth preset time period after the second command is sent to the power amplifier device. If the second response returned by the power amplifier device is received within the fourth preset time period, the communication connection between the display device and the power amplifier device is successfully established.

[0160] For example, the third preset time period and the fourth preset time period can be 20 ms.

[0161] As can be seen from the above embodiments, when the power amplifier device is detected to be connected, a first initialization procedure corresponding to the e-ARC power amplifier device is executed, which comprises outputting a high-level Hotplug signal and listening whether a common-mode data packet sent by the power amplifier device is received within a first preset time period. If the common-mode data packet is received within the first preset time period, the first initialization procedure is continuously executed to establish a communication connection with the power amplifier device. If the common-mode data packet is not received within the first preset time period, the first initialization procedure is terminated and a second initialization procedure corresponding to the ARC power amplifier device is executed to establish a communication connection with the power amplifier device. It can be seen that, no matter whether the connected power amplifier device is an ARC power amplifier device or an e-ARC power amplifier device, the display device can dynamically switch the initialization procedure and finally establish a communication connection with the connected power amplifier device, without the need for manual setting by the user, thereby improving the user experience.

[0162] The embodiments of the present application also provide a method for establishing a communication connection with a power amplifier device, which is applied to the display device 200 in the above embodiments. Figure 9 As shown in the method flowchart for establishing a communication connection with a power amplifier device in some embodiments of the present application, Figure 9 the method can comprise:

[0163] Step 910, detecting that the power amplifier device is accessed;

[0164] Step 920, executing a first initialization process corresponding to the e-ARC power amplifier device, the first initialization process comprising:

[0165] Step 921, outputting a high level Hotplug signal;

[0166] Step 922, listening whether a common mode data packet sent by the power amplifier device is received within a first preset time length; if yes, executing steps 923-924, and if no, executing step 930.

[0167] Step 923, if the common mode data packet is received within the first preset time length, continuing to execute the first initialization process, i.e., sending a heartbeat packet to the power amplifier device;

[0168] Step 924, listening whether a heartbeat response sent by the power amplifier device is received within a second preset time length; if yes, outputting a low level Hotplug signal, and connecting with the power amplifier device successfully; if no, executing step 930.

[0169] Step 930, terminating the execution of the first initialization process, and executing a second initialization process corresponding to the ARC power amplifier device.

[0170] The second initialization process comprises:

[0171] Step 931, under the condition that the low level Hotplug signal is outputted, sending a first command to the power amplifier device, the first command being used to wake up the power amplifier device and make the power amplifier device start a sound system working mode;

[0172] Step 932, listening whether a first response sent by the power amplifier device is received within a third preset time length; if yes, executing step 933, and if no, ending the process.

[0173] Step 933, sending a second command to the power amplifier device;

[0174] Step 934, listening whether a second response sent by the power amplifier device is received within a fourth preset time length; if yes, connecting with the power amplifier device successfully; and if no, ending the process.

[0175] As can be seen from the above embodiments, when the power amplifier device is detected to be connected, a first initialization process corresponding to the e-ARC power amplifier device is performed, the first initialization process comprising outputting a Hotplug signal of a high level, and listening whether a common mode data packet sent by the power amplifier device is received within a first preset time length; if the common mode data packet is received within the first preset time length, the first initialization process is continuously performed to establish a communication connection with the power amplifier device; if the common mode data packet is not received within the first preset time length, the first initialization process is terminated, and a second initialization process corresponding to the ARC power amplifier device is performed to establish a communication connection with the power amplifier device. It can be seen that, no matter whether the connected power amplifier device is an ARC power amplifier device or an e-ARC power amplifier device, the display device can dynamically switch the initialization process, and finally establish a communication connection with the connected power amplifier device, without the need for manual setting by the user, thereby improving the user experience.

[0176] In specific implementations, the present application further provides a computer storage medium, wherein the computer storage medium can store a program, and the program can include some or all steps of the embodiments of the method for establishing a communication connection with a power amplifier device when executed. The storage medium can be a magnetic disc, an optical disc, a read-only memory (ROM) or a random access memory (RAM) and the like.

[0177] Those skilled in the art can clearly understand that the technology in the embodiments of the present application can be realized by means of software and necessary general hardware platforms. Based on such understanding, the technical solutions in the embodiments of the present application can be embodied in the form of a software product, which can be stored in a storage medium, such as a ROM / RAM, a magnetic disc, an optical disc and the like, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device and the like) to execute the method described in the embodiments of the present application or some parts of the embodiments.

[0178] The same or similar parts among the various embodiments in the present specification can be referred to each other. In particular, for the method embodiments, since they are basically similar to the display device embodiments, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiments.

[0179] The above-described embodiments of the present application do not constitute a limitation on the protection scope of the present application.

Claims

1. A display device, characterized by comprising: The display device comprises: a display; a controller configured to: output a high-level Hotplug signal at a Hotplug port of the display device when detecting that a power amplifier device is connected, wherein the power amplifier device is any one of an e-ARC power amplifier device and an ARC power amplifier device; listen for a COMMONMode data packet from the power amplifier device within a first preset time period; if the COMMONMode data packet is received within the first preset time period, send a heartbeat packet to the power amplifier device, and listen for a heartbeat response from the power amplifier device within a second preset time period after sending the heartbeat packet; if the heartbeat response from the power amplifier device is received within the second preset time period, determine that the power amplifier device is an e-ARC power amplifier device; if the heartbeat response from the power amplifier device is not received within the second preset time period, determine that the power amplifier device is an ARC power amplifier device; if the COMMONMode data packet is not received within the first preset time period, send an instruction for setting a sound system mode request to the power amplifier device, so as to wake up the power amplifier device and start a sound system working mode when the power amplifier device is in standby; listen for a response sent by the power amplifier device, and establish a communication connection with the power amplifier device.

2. The display device of claim 1, wherein, The controller is configured to: in the step of listening for the response sent by the power amplifier device and establishing the communication connection with the power amplifier device, specifically: listen for a first response sent by the power amplifier device within a third preset time period; if the first response is received within the third preset time period, send a second command to the power amplifier device; listen for a second response sent by the power amplifier device within a fourth preset time period; if the second response is received within the fourth preset time period, establish the communication connection with the power amplifier device.

3. The display device of claim 1, wherein, The COMMONMode data packet comprises a COMMONModeData data packet.

4. The display device of claim 1, wherein, The first preset time period and the second preset time period are the same.

5. The display device of claim 2, wherein, The third preset time period and the fourth preset time period are the same.

6. The display device according to claim 2, wherein: the first preset time period, the second preset time period, the third preset time period, and the fourth preset time period are the same.

7. A method for establishing a communication connection with a power amplifier device, the method being applied in a display device, and the method comprising: outputting a high-level Hotplug signal at a Hotplug port of the display device when detecting that a power amplifier device is connected, wherein the power amplifier device is any one of an e-ARC power amplifier device and an ARC power amplifier device; listening for a COMMONMode data packet from the power amplifier device within a first preset time period; if the COMMONMode data packet is received within the first preset time period, sending a heartbeat packet to the power amplifier device, and listening for a heartbeat response from the power amplifier device within a second preset time period after sending the heartbeat packet; if the heartbeat response from the power amplifier device is received within the second preset time period, determining that the power amplifier device is an e-ARC power amplifier device; if the heartbeat response from the power amplifier device is not received within the second preset time period, determining that the power amplifier device is an ARC power amplifier device; If the common mode data packet is not received within the first preset time length, an instruction of setting a sound system mode request is sent to the power amplifier device, so that the power amplifier device is woken up and the sound system working mode is started when the power amplifier device is in standby state; The response sent by the power amplifier device is listened to, and a communication connection with the power amplifier device is established.

8. The method of claim 7, wherein, In the step of listening to the response sent by the power amplifier device and establishing a communication connection with the power amplifier device, the step specifically comprises: listening to whether the first response sent by the power amplifier device is received within a third preset time length; if the first response is received within the third preset time length, a second command is sent to the power amplifier device; listening to whether the second response sent by the power amplifier device is received within a fourth preset time length; if the second response is received within the fourth preset time length, a communication connection with the power amplifier device is established.

9. The method of claim 7, wherein, The common mode data packet comprises a COMMONMode Data data packet.

10. The display device of claim 8, wherein, the first preset time length, the second preset time length, the third preset time length and the fourth preset time length are the same.

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