CN113055788B

CN113055788B - Switching control method of audio output channel and display equipment

Info

Publication number: CN113055788B
Application number: CN202110429853.7A
Authority: CN
Inventors: 霍俊逸
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2022-09-30
Anticipated expiration: 2041-04-21
Also published as: CN113055788A

Abstract

The invention discloses a switching control method of an audio output channel and a display device, which respond to the switching operation of the audio output channel of an external power amplifier and acquire a first state value corresponding to the switching operation; the audio output channel of the external power amplifier comprises ARC and/or eARC; the first state value is used to indicate a switch state of the eARC specified by the switching operation; and adjusting the connection state of the ARC and the eARC according to the first state value, determining a target channel for outputting audio according to an adjustment result, and displaying the on-off state of the eARC matched with the target channel. The method and the device improve the accuracy of switching between the ARC mode and the eARC mode, and no matter whether the switching between the ARC mode and the eARC mode is successful, a matched target channel is provided to output the audio, so that the condition that an external power amplifier and a display device are silent due to abnormal mode switching is avoided, and the effectiveness of audio playing is ensured.

Description

Switching control method of audio output channel and display equipment

Technical Field

The invention relates to the field of display equipment, in particular to a switching control method of an audio output channel and display equipment.

Background

In some application scenarios, the display device may be connected to an external power amplifier, such as a sound device, so that the audio output channel is no longer limited to the speaker built in the display device. For an external power amplifier supporting an ARC (Audio Return Channel) and/or an ARC (enhanced Audio Return Channel) function, the external power amplifier may be connected to a display device through an HDMI (High Definition Multimedia Interface). The eARC mode not only can output the audio formats supported by the existing ARC, but also supports the latest audio formats, such as Dolby Atmos, DTS: X, multi-channel LPCM and the like, thereby improving the audio playing effect.

When the display device outputs audio through an external power amplifier channel, switching between an ARC mode and an ARC mode may be involved, and an abnormality may occur in switching the audio output channel, for example, switching between the ARC mode and the ARC mode is overtime, or the ARC mode cannot be switched back from the ARC mode, which causes the problems that the whole display device and the external power amplifier are silent, and the like.

Disclosure of Invention

The invention provides a switching control method of an audio output channel and a display device, which are used for overcoming the abnormal problem when switching between an ARC mode and an eARC mode.

A first aspect provides a display device comprising:

a display for displaying a user interface;

the HDMI is used for connecting an external power amplifier, and an audio output channel of the external power amplifier comprises ARC and/or eARC;

a sound player for playing audio;

a controller configured to perform:

responding to the switching operation of the audio output channel of the external power amplifier, and acquiring a first state value corresponding to the switching operation, wherein the first state value is used for indicating the switching state of the eARC specified by the switching operation;

and adjusting the connection state of the ARC and the eARC according to the first state value, determining a target channel for outputting audio according to an adjustment result, and displaying the on-off state of the eARC matched with the target channel.

A second aspect provides a method for controlling switching of audio output channels, including:

responding to the switching operation of an audio output channel of an external power amplifier, and acquiring a first state value corresponding to the switching operation; the external power amplifier is connected with the display equipment through an HDMI, and an audio output channel of the external power amplifier comprises ARC and/or eARC; the first state value is used to indicate a switch state of the eARC specified by the switching operation;

In the technical scheme provided by the application, the display device is connected with the external power amplifier through the HDMI, and an audio output channel of the external power amplifier comprises ARC and/or eARC, namely, the ARC mode and/or the eARC mode are supported. When the display device outputs audio from the external power amplifier currently, if a user inputs a switching operation on an audio output channel of the external power amplifier, that is, the ARC mode is switched to the ARC mode, or the ARC mode is switched to the ARC mode, a first state value corresponding to the switching operation is obtained, the first state value represents a switching state of the ARC under the designation of the switching operation, taking the switching from the ARC mode to the ARC mode as an example, that is, the ARC mode needs to be exited, and the ARC mode is started, so that the first state value identifies the ARC as an open state, for example, the first state value is set to be on. The connection status of ARC and ARC is then adjusted according to the indication of the first status value, for example, when the first status value is on, the ARC connection needs to be disconnected and the ARC connection needs to be established. In the process of adjusting the connection state of the ARC and the ARC, if connection failure, connection timeout or detection that the external power amplifier does not actually support a certain audio output mode, etc. may occur, the adjustment result is required to determine and match the target channel for finally outputting the audio, and control the UI to display the on-off state of the ARC matched with the target channel.

For example, when the first state value is set to on, if the eARC connection is overtime and the eARC connection cannot be established, it is determined that the target channel is ARC, the handshake with ARC needs to be restarted, and the switching state of eARC is displayed as a closed state, that is, the external power amplifier fails to switch from the ARC mode to the eARC mode; and if the eARC connection is successful, determining that the target channel is eARC, displaying that the switch state of the eARC is the starting state, and successfully switching the audio output mode of the external power amplifier. According to the method and the device, after the switching operation of the user is received, the target channel is matched according to the adjustment result of the connection state of the ARC and the eARC, the target channel is controlled to output audio, the on-off state of the eARC is matched with the target channel, the on-off state of the eARC is automatically changed when the mode switching is successful, the on-off state of the eARC is not changed when the mode switching is failed, the situations of false connection of the eARC and the like are avoided, and the switching accuracy between the ARC mode and the eARC mode is improved. In addition, no matter whether the switching between the ARC mode and the eARC mode is successful, the matched target channel outputs the audio, the condition that an external power amplifier and a display device are silent due to abnormal mode switching is avoided, the effectiveness of audio playing is guaranteed, and the user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or technical solutions in the prior art, the drawings to be accessed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 illustrates a usage scenario of a display device according to some embodiments;

fig. 2 illustrates a hardware configuration block diagram of the control apparatus 100 according to some embodiments;

fig. 3 illustrates a hardware configuration block diagram of the display apparatus 200 according to some embodiments;

FIG. 4 illustrates a software configuration diagram in the display device 200 according to some embodiments;

FIG. 5 illustrates a UI diagram of an audio output settings page;

fig. 6 illustrates a UI diagram for switching the state of the arc switch in the sound setting page;

fig. 7 is a flowchart illustrating a switching control method of an audio output channel;

fig. 8 illustrates a switch logic one when switching the arc from the off state to the on state;

fig. 9 illustrates switching logic two when switching the arc from the on state to the off state;

fig. 10 exemplarily shows a switching logic three when the CEC function is switched from the on state to the off state.

Detailed Description

To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, and not all the embodiments.

It should be noted that the brief descriptions of the terms in the present application are only for convenience of understanding of the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.

The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

Fig. 1 is a schematic diagram of a usage scenario of a display device according to an embodiment. As shown in fig. 1, the display apparatus 200 is also in data communication with a server 400, and a user can operate the display apparatus 200 through the smart device 300 or the control device 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes at least one of an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or wired manner. The user may control the display apparatus 200 by inputting a user instruction through at least one of a key on a remote controller, a voice input, a control panel input, and the like.

In some embodiments, the smart device 300 may include any of a mobile terminal, a tablet, a computer, a laptop, an AR/VR device, and the like.

In some embodiments, the smart device 300 may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device.

In some embodiments, the smart device 300 and the display device may also be used for communication of data.

In some embodiments, the display device 200 may also be controlled in a manner other than the control apparatus 100 and the smart device 300, for example, the voice command control of the user may be directly received through a module configured inside the display device 200 to obtain the voice command, or may be received through a voice control apparatus provided outside the display device 200.

In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers.

In some embodiments, software steps executed by one step execution agent may migrate to another step execution agent in data communication therewith for execution as needed. Illustratively, software steps performed by the server may be migrated to be performed on a display device in data communication therewith, and vice versa, as desired.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200.

In some embodiments, the communication interface 130 is used for external communication, and includes at least one of a WIFI chip, a bluetooth module, NFC, or an alternative module.

In some embodiments, the user input/output interface 140 includes at least one of a microphone, a touchpad, a sensor, a key, or an alternative module.

Fig. 3 shows a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment.

In some embodiments, the display apparatus 200 includes at least one of 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, a user interface.

In some embodiments the controller comprises a central processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.

In some embodiments, the display 260 includes a display screen component for displaying pictures, and a driving component for driving image display, a component for receiving image signals from the controller output, displaying video content, image content, and menu manipulation interface, and a user manipulation UI interface, etc.

In some embodiments, the display 260 may be at least one of a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.

In some embodiments, the tuner demodulator 210 receives broadcast television signals via wired or wireless reception and demodulates audio/video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

In some embodiments, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display apparatus 200 may establish transmission and reception of control signals and data signals with the control device 100 or the server 400 through the communicator 220.

In some embodiments, the detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for collecting ambient light intensity; alternatively, the detector 230 includes an image collector, such as a camera, which may be used to collect external environment scenes, attributes of the user, or user interaction gestures, or the detector 230 includes a sound collector, such as a microphone, which is used to receive external sounds.

In some embodiments, the external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, and the like. The interface may be a composite input/output interface formed by the plurality of interfaces.

In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.

In some embodiments, the object may be any one of selectable objects, such as a hyperlink, an icon, or other actionable control. The operations related to the selected object are: displaying an operation of connecting to a hyperlink page, document, image, etc., or performing an operation of a program corresponding to the icon.

In some embodiments the controller comprises at least one of a Central Processing Unit (CPU), a video processor, an audio processor, a Graphics Processing Unit (GPU), a RAM Random Access Memory (RAM), a ROM (Read-Only Memory), a first to nth interface for input/output, a communication Bus (Bus), and the like.

A CPU processor. For executing operating system and application program instructions stored in the memory, and executing various application programs, data and contents according to various interactive instructions receiving external input, so as to finally display and play various audio-video contents. The CPU processor may include a plurality of processors. E.g. comprising a main processor and one or more sub-processors.

In some embodiments, a graphics processor for generating various graphics objects, such as: at least one of an icon, an operation menu, and a user input instruction display figure. The graphic processor comprises an arithmetic unit, which performs operation by receiving various interactive instructions input by a user and displays various objects according to display attributes; the system also comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

In some embodiments, the video processor is configured to receive an external video signal, and perform at least one of video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a signal displayed or played on the direct display device 200.

In some embodiments, the video processor includes at least one of a demultiplexing module, a video decoding module, an image composition module, a frame rate conversion module, a display formatting module, and the like. The demultiplexing module is used for demultiplexing the input audio and video data stream. And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like. And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display. And the frame rate conversion module is used for converting the frame rate of the input video. And the display formatting module is used for converting the received video output signal after the frame rate conversion, and changing the signal to be in accordance with the signal of the display format, such as an output RGB data signal.

In some embodiments, the audio processor is configured to receive an external audio signal, perform at least one of decompression and decoding, and denoising, digital-to-analog conversion, and amplification processing according to a standard codec protocol of the input signal, and obtain a sound signal that can be played in the speaker.

In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on display 260, and the user input interface receives the user input commands through the Graphical User Interface (GUI). Alternatively, the user may input the 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.

In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include at least one of 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 elements.

In some embodiments, user interface 280 is an interface that may be used to receive control inputs (e.g., physical buttons on the body of the display device, or the like).

In some embodiments, a system of a display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together form the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

Referring to fig. 4, in some embodiments, the system is divided into four layers, which are an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) and system library layer (abbreviated as "system runtime library layer"), and a kernel layer from top to bottom.

In some embodiments, at least one application program runs in the application program layer, and the application programs may be windows (windows) programs carried by an operating system, system setting programs, clock programs or the like; or an application developed by a third party developer. In particular implementations, the application packages in the application layer are not limited to the above examples.

The framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resources in the system and obtain the services of the system in execution through the API interface.

As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; a Location Manager (Location Manager) for providing access to the system Location service to the system service or application; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.

In some embodiments, the activity manager is used to manage the lifecycle of the various applications as well as general navigational fallback functions, such as controlling exit, opening, fallback, etc. of the applications. The window manager is used for managing all window programs, such as obtaining the size of a display screen, judging whether a status bar exists, locking the screen, intercepting the screen, controlling the change of the display window (for example, reducing the display window, displaying a shake, displaying a distortion deformation, and the like), and the like.

In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included in the system runtime layer to implement the functions to be implemented by the framework layer.

In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the core layer includes at least one of the following drivers: audio drive, display driver, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (like fingerprint sensor, temperature sensor, pressure sensor etc.) and power drive etc..

The above embodiments describe the hardware/software architecture and functional implementation of the display device. In some application scenarios, a plurality of HDMI interfaces are generally preset on the display device, and the display device can be connected with an external power amplifier through the HDMI interfaces, where the external power amplifier includes devices such as a sound device that have audio output and play functions.

In some embodiments, the audio output channel supported by the external power amplifier includes at least one of ARC and eARC, wherein the ARC mode is dependent on CEC (Consumer Electronics control), and CEC is not necessary for eARC.

In some embodiments, if the CEC is in the on state, the external power amplifier is supported to enable the ARC mode or the eARC mode; if the CEC is in the off state, only the external power amplifier is supported to enable the eARC mode, the ARC mode cannot be used, and since the CEC can realize that a user can control a plurality of external devices for turning on the CEC function by using the same remote controller, when the CEC is turned off, although the audio output by the eARC can still be maintained, the user cannot adjust the volume of the external power amplifier through the remote controller, for example, cannot adjust the mute, increase the volume or reduce the volume; if the CEC is in the off state, and the external power amplifier only supports ARC, but not etarc, the external power amplifier cannot output and play audio, and the CEC may be switched to another channel, such as a sound player (TV Speaker) or a Bluetooth (Bluetooth) channel built in the display device.

In some embodiments, fig. 5 illustrates a UI of an Audio Output (Audio Output) setup page, where different categories of Audio Output channels may be exposed, such as including but not limited to TV Speaker, ARC, Bluetooth, and the like. The Audio Output menu may also be annotated with the current status of the various Audio Output channels (optional or not). The channel in the selectable state can be selected by a user and set as a target channel for finally outputting audio; the channel in the unselected state cannot be selected by the user, and cannot be used as a target channel to output audio. In the example of fig. 5, the external power amplifier is represented by ARC, but the name of the external power amplifier channel should be synchronized with the actual connection mode of the external power amplifier.

In some embodiments, the TV Speaker is an audio output channel built into the display device, typically in an optional state by default.

In some embodiments, whether the external power amplifier is selectable or not has a constraint relation with the state of the CEC switch. If the CEC function is in the open state, determining whether A ^ B is true, wherein the condition A is that the external power amplifier is detected to be in the connection state through the CEC function, the condition B is that the external power amplifier is connected to the target port, and the target port is the ARC port and/or the eARC port of the display device. The condition A is to detect whether the external power amplifier is on line or not, and the detection can be realized by acquiring the equipment information of the external power amplifier through CEC; and the condition B is to judge whether the external power amplifier is connected to the ARC port and/or the eARC port, for example, the physical address of the external power amplifier is read and is shifted to the right by 12 bits, then the operation comparison is carried out on the physical address of the external power amplifier and the address of the target port, and if the two addresses are matched, the external power amplifier is connected with the target port in place. Only if A ≈ B is satisfied, namely when the condition A and the condition B are simultaneously satisfied, the external power amplifier in the Audio Output menu is in an optional state; if it is not

And if the condition A is satisfied, namely at least one of the condition A and the condition B is not satisfied, the external power amplifier in the Audio Output menu is set to be in an unselected state.

In some embodiments, a user may set an on/off state of the CEC function, and if the user turns off the CEC function, the display device may not detect whether the external power amplifier is connected or not through the CEC protocol, in this case, the application defaults to set the external power amplifier in the Audio Output menu to an optional state, so as to be compatible with the external power amplifier that only supports the eARC mode, because the eARC mode is not dependent on CEC, and the eARC mode may still be maintained when the CEC is turned off. The design mode combines the automatic identification of ARC and the technical realization that the eARC is independent of CEC protocol.

In some embodiments, only if the external power amplifier channel in the Audio Output menu is in the selectable state and the external power amplifier has been selected by the user, can further switch between ARC and ARC in both directions. Fig. 6 shows a Sound (Sound) setting page, in which a target channel for displaying a current output audio is ARC (i.e., external power amplifier), and a switch control with ARC is displayed, and the on/off state of ARC can be adjusted by setting on (on) or off (off) of the ARC switch control.

In some embodiments, if the external power amplifier simultaneously supports the ARC mode and the ARC mode, and the current operation is the ARC mode, after the user enters the sound setting page, the switch control of the ARC is in the off state, and the user may switch the switch control of the ARC to the on state, so as to switch the audio output channel from the ARC to the ARC; on the contrary, if the current operation is the eARC mode, after the user enters the sound setting page, the target channel is displayed as eARC, the switch control of the eARC is in the on state, and the user can switch the switch control of the eARC into the off state, so that the audio output channel is switched from the eARC to the ARC.

In some embodiments, if the external power amplifier only supports the ARC mode but not the ARC mode, after the user enters the sound setting page, the target channel is displayed as ARC, and the switch control of the ARC is in the off state, even if the user inputs an operation of turning on the ARC switch control, the display device detects that the external power amplifier does not support the ARC mode, the switch state of the switch control of the ARC is not changed, that is, the working mode of the external power amplifier cannot be switched, and the current ARC mode is still maintained.

In some embodiments, if the external power amplifier only supports the etarc mode but not the ARC mode, after the user enters the sound setting page, the target channel is displayed as etarc, and the switch control of the etarc is synchronously in the on state, if the user switches the switch control of the etarc to the off state, the user exits from the etarc mode of the external power amplifier, and the target channel outputting the Audio may be automatically switched to the TV Speaker, or the user returns to the Audio Output menu to reselect the target channel for outputting the Audio.

In some embodiments, after the user selects the audio output by the external power amplifier on the page of fig. 5, if the switch control of the ARC is turned on or off in the page of fig. 6, the switching logic of the ARC and the ARC is triggered. Fig. 7 provides a switching control method of audio output channels, the execution subject of the method is a controller 250, the method includes the following program steps:

step S101, responding to a switching operation of an audio output channel of an external power amplifier, and acquiring a first state value corresponding to the switching operation, wherein the first state value is used for indicating a switching state of the eARC specified by the switching operation.

The switching operation in step S1 refers to an operation of switching the on/off state of the arc switch control, and includes two cases, the first is to switch the arc from the off state to the on state, and the second is to switch the arc from the on state to the off state.

In some embodiments, if the switching operation is to switch the arc from the off state to the on state, that is, the user desires to turn on the arc mode, the first state value is recorded as on; if the switching operation is to switch the eARC from the ON state to the OFF state, then the first state value is recorded as OFF. It should be noted that the flag form of the first state value is not limited to that described in the present embodiment.

Step S102, adjusting the connection state of the ARC and the eARC according to the first state value, determining a target channel for outputting audio according to an adjustment result, and displaying the on-off state of the eARC matched with the target channel.

The scheme of fig. 5 is an overall overview of the switching control logic of the audio output channels, and in more detail, referring to the first state values in different situations of step S101, the switching logic of step S102 is also divided into a first switching logic and a second switching logic.

Fig. 8 illustrates a first switching logic, which corresponds to the first state value being on, and includes the following steps:

step (a 1): acquiring a first state value, and detecting that the first state value is on;

step (a 2): calling a SetEarcEnable (pool on) interface, and saving the on-off state of the eARC to be on;

step (a 3): calling a SetEarcEnable interface provided by a driver layer, controlling the driver layer to connect eARC, and disconnecting ARC; the driving layer actively carries out eARC handshake with an external power amplifier, thereby connecting eARC, enabling the eARC to be in an enabled (enabled) state, simultaneously disconnecting ARC, and enabling the ARC to be in a disabled (disabled) state, and the step is mainly to adjust the connection state of the eARC and the ARC according to the indication of a first state value;

step (a 4): the driving layer generates a second state value according to the adjustment result of the eARC, and reports the second state value to a Framework (Framework) layer, so that the Framework layer executes a channel switching control logic as shown in the following; in some embodiments, if the driver layer is successfully connected and the eARC is enabled, the second state value is fed back as on; if the eARC connection failure and eARC connection overtime occur in the driving layer, or abnormal conditions such as that the external power amplifier does not actually support the eARC mode when the eARC connection occurs are detected, feeding back a second state value as off;

step (a5), Framework layer: detecting whether the second state value is on; if the second state value is on, performing step (A6); if the second state value is off, performing step (A8);

step (a6), Framework layer: determining that the target channel is eARC, and feeding back a third state value to the UI layer as on; the third state value is used for indicating the on-off state of an eARC switch control displayed by the UI layer;

step (a7), UI layer: receiving a third state value, and controlling the display to change the switch control of the eARC into an on state when the third state value is detected to be on; in some embodiments, when the UI layer detects that the third state value is on, the UI layer may also change the name of the target channel of the currently Output Audio in the Audio Output menu and the sound setting page to ARC synchronously, so as to implement switching from the ARC mode to the ARC mode;

step (A8), Framework layer: determining that the target channel is ARC, feeding back a third state value of off to the UI layer, and reestablishing ARC connection;

step (a9), UI layer: receiving a third state value, and upon detecting that the third state value is off, controlling the display to maintain the on-off control of the eARC in an off state.

When the drive layer connection eARC fails, overtime occurs or it is detected that the external power amplifier does not support the eARC mode, the display device cannot play audio through the eARC channel, thus restarting ARC handshake, establishing ARC connection and enabling, the switch control which is embodied as eARC in the UI layer still keeps a closed state, and cannot be changed due to the operation of opening the eARC by a user, which is equivalent to no response of the eARC switch control, thereby avoiding the situation that the eARC switch control is displayed in an open state and actually the eARC is not successfully connected (i.e. false connection), and at this time, the ARC mode is used to output audio, i.e. the channel mode of the external power amplifier is not switched. The driver layer, the Framework layer and the UI layer involved in the present application are all controlled by the controller 250, and the controller 250 realizes the switching process of the audio output channel by coordinating and controlling the program execution among the layers.

Fig. 9 illustrates a toggle logic two, corresponding to the first state value being off, comprising the following program steps:

step (B1): acquiring a first state value, and detecting that the first state value is off;

step (B2): calling a SetEarcEnable (boul on) interface, and saving the on-off state of the eARC to be off;

step (B3): calling a SetEarcEnable interface provided by the driving layer, and controlling the driving layer to disconnect the eARC connection, namely exiting the eARC mode of the external power amplifier;

step (B4): the driving layer reports the second state value to the Framework layer, so that the Framework layer executes a channel switching control logic shown in the following step (B5); switching a second state value in the logic two to be off;

step (B5), Framework layer: receiving the second state value, determining that the target channel is ARC when the second state value is detected to be off, feeding back a third state value to the UI layer to be off, and reestablishing ARC connection; the third state value is used for indicating the on-off state of an eARC switch control displayed by the UI layer;

step (B6), UI layer: receiving a third state value, and controlling the display to change the switch control of the eARC to the off state when the third state value is detected to be off; in some embodiments, when the UI layer detects that the third status value is off, the UI layer may further change the name of the target channel of the currently Output Audio in the Audio Output menu and the Audio setting page to ARC in synchronization, so as to switch from the earrc mode to the ARC mode.

In practical applications, a user can operate a switch control of the CEC in a setting menu, so as to control the on-off state of the CEC function. When the on-off control of the CEC is switched to off, that is, the CEC function is switched from the on state to the off state, the sound of the external power amplifier is interrupted instantly, and after the CEC is turned off, the user cannot adjust the volume through the remote controller in the eARC mode, but there is no prompt for the abnormal situation.

In this regard, in some embodiments, fig. 10 illustrates a toggle logic three when the CEC function is turned off, including the following procedural steps:

step (C1): the on-off state of the CEC function is monitored.

Step (C2): when the CEC function is detected to be switched from the on state to the off state, a GetEarcStatus interface is called, the current audio output channel is inquired, and whether the current audio output channel is an eARC or not is judged. If it is an eARC, go to step (C3): if it is ARC, go to step C4.

And (C3) keeping the audio output channel equal to the eARC, and controlling the display to display a first prompt message, where the first prompt message is used to prompt the user that the CEC function is turned off and the volume of the eARC output audio cannot be adjusted by the remote controller.

Since the eARC mode is not dependent on CEC, when the external power amplifier is in the eARC mode, the CEC function is turned off, and the audio output channel still keeps outputting audio through the eARC channel without switching the audio output channel, but it is necessary to prompt the user that the Volume of the external power amplifier cannot be adjusted by operating the remote controller due to the fact that the CEC function is turned off, and the Volume adjustment operation includes Mute (Mute), Volume Up (Volume Up), and Volume Down (Volume Down). After the user checks the first prompt message, the user can know the reason that the volume of the external power amplifier cannot be adjusted through the remote controller, so that the volume adjusting capacity of the remote controller can be restored by switching the audio output channel or restarting the CEC function and the like.

Step (C4), sending an exit instruction to an external power amplifier, switching the audio output channel to a sound player of the display device, and controlling a display to display a second prompt message for prompting a user that the CEC function is closed and the CEC output channel is automatically switched to the sound player; and the exit instruction is used for indicating the external power amplifier to exit the ARC working mode.

In some embodiments, in step (C4), while the exit instruction is sent, a CEC off message needs to be broadcast, and the Audio device management module at the bottom layer of the display device automatically switches the Audio output channel to a TV Speaker in response to receiving the CEC off message; in step (C3), since the Audio output channel is not switched but remains eARC, the Audio device management module does not switch the Audio output channel without broadcasting the CEC off message and without receiving the CEC off message.

And a step (C5) of turning off the CEC function. After the step (C3) or the step (C4) is completed, the CEC function is turned off and CEC-related data is cleared.

Because the ARC mode depends on CEC, when the external power amplifier is in the ARC mode, the CEC function is closed, the ARC mode is unavailable, the display device sends an exit instruction to inform the external power amplifier to exit the ARC mode, so that ARC connection is disconnected, meanwhile, the display device automatically switches an audio output channel to a TV Speaker, namely, the display device is switched to a Speaker carried by the TV to play audio, the silent problem caused by the fact that the audio cannot be output due to the CEC closing is avoided, and a user is prompted that the CEC is closed, so that the CEC function is automatically switched to the TV Speaker to sound. After the user checks the second prompt message, the user can know the reason for switching the audio output channel, can continue to use the TV Speaker to play audio, can restart the CEC function, and switches to the ARC or eARC of the external power amplifier to output audio.

This application mainly focuses on when the user selects outside power amplifier Output Audio in the Audio Output menu, how to switch between ARC mode and eARC mode, and provide switching logic one and switching logic two according to the switching direction, the accuracy of switching between ARC mode and eARC mode has been improved, no matter whether switching between ARC mode and eARC mode is successful in addition, the target passageway that all has the matching goes out the Audio, avoid leading to the noiseless condition of outside power amplifier and display device because of the mode switching is unusual, guarantee the validity of Audio playback, promote user experience. The technical scheme of the application can be compatible with the external power amplifier which simultaneously supports ARC and eARC, and also can be compatible with the external power amplifier which only supports ARC and only supports eARC.

Since the external power amplifier is influenced by the state of the CEC switch when playing audio in different modes, a logic three for switching the CEC function from on to off is provided. It should be noted that, based on the switching logic provided in the present application, based on the working mechanisms of HDMI, CEC, ARC and eARC, more possible switching logic can be adaptively extended. Other contents of HDMI, CEC, ARC and eARC can refer to related prior arts, and are not described in detail herein. In addition, the UI involved in the present application is merely exemplary, and is subject to practical application and design.

Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. In a specific implementation, the invention also provides a computer storage medium, which can store a program. When the computer storage medium is located in the display apparatus 200, the program may be executed to include the aforementioned switching control method and switching logics of the audio output channel that the controller 250 is configured to perform. The computer storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM) or a Random Access Memory (RAM).

In this specification, the same and similar parts between the display device embodiment and the method embodiment may be referred to each other, and related contents are not described again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A display device, comprising:

a display for displaying a user interface;

the sound player is used for playing audio;

a controller configured to perform:

adjusting the connection state of the ARC and the eARC according to the first state value, determining a target channel for outputting audio according to an adjustment result, and displaying the on-off state of the eARC matched with the target channel;

monitoring the on-off state of the CEC function;

when the CEC function is detected to be switched from an open state to a closed state, inquiring a current audio output channel;

if the current audio output channel is the eARC, keeping the eARC unchanged for the audio output channel.

2. The display device according to claim 1, wherein the controller is configured to acquire the first state value as follows:

if the switching operation is to switch the eARC from a closed state to an open state, recording the first state value as on;

if the switching operation is to switch the eARC from the on state to the off state, recording that the first state value is off.

3. The display device of claim 2, wherein the controller is configured to display the switching state of the eARC that matches the target channel as follows:

when the first state value is detected to be on, controlling a driving layer to be connected with the eARC and disconnecting the connection with the ARC;

generating a second state value according to the adjustment result of the driving layer, and reporting the second state value to the framework layer so that the framework layer executes channel switching control logic; the second status value is to indicate a connection status of the eARC;

wherein the channel switch control logic is configured to: and if the second state value is detected to be on, determining that the target channel is the eARC, and controlling a display to change the switch control of the eARC to an on state.

4. The display device of claim 3, wherein the channel switching control logic is further configured to:

if the second state value is detected to be off, determining that the target channel is the ARC, reestablishing connection with the ARC, and controlling a display to set a switch control of the eARC to be in an off state;

if the eARC connection fails, the eARC connection is overtime, or it is detected that the external power amplifier does not support the eARC when the eARC connection is performed, the second state value is off.

5. The display device of claim 2, wherein the controller is configured to display the switching state of the eARC that matches the target channel as follows:

when the first state value is detected to be off, controlling a driving layer to disconnect the eARC, generating and reporting a second state value to a framework layer, so that the framework layer executes a channel switching control logic; the second state value is off;

wherein the channel switching control logic is configured to: and when the second state value is detected to be off, determining that the target channel is the ARC, reestablishing connection with the ARC, and controlling the display to change the switch control of the eARC to the off state.

6. The display device as claimed in claim 1, wherein upon detecting that the CEC function is switched from an on state to an off state, querying a current audio output channel, and if the current audio output channel is the eARC, keeping the audio output channel unchanged, the controller is further configured to perform:

and controlling a display to display first prompt information, wherein the first prompt information is used for prompting a user that the CEC function is closed and the volume of the output audio of the eARC cannot be adjusted through a remote controller.

7. The display device according to claim 6, wherein the controller is further configured to perform:

when the CEC function is detected to be switched from the open state to the closed state, if the current audio output channel is the ARC, sending an exit instruction to the external power amplifier, switching the audio output channel to the sound player of the display device, and controlling a display to display second prompt information for prompting a user that the CEC function is closed and automatically switched to the sound player; and the exit instruction is used for indicating the external power amplifier to exit the ARC working mode.

8. The display device according to claim 2, wherein the controller is further configured to perform:

when the CEC function is in the open state, judging whether A & ltn & gt B & lt/n & gt is established; the condition A is that the external power amplifier is detected to be in a connection state through the CEC function, the condition B is that the external power amplifier is connected to a target port, and the target port is an ARC port and/or an eARC port of the display device;

if A ^ B is established, controlling the audio output to set the external power amplifier in the page to be in an optional state; when the external power amplifier is optionalForm ofWhile in state, allowing the user to further adjust the on/off state of the etarc;

on the contrary, if

And if yes, controlling the external power amplifier in the audio output setting page to be in an unselected state.

9. The display device according to claim 2, wherein the controller is further configured to perform:

when the CEC function is in a closed state, controlling the external power amplifier in the audio output setting page to be in an optional state; allowing a user to further adjust the on-off state of the eARC when the external power amplifier is in an optional state.

10. A switching control method of audio output channels in a display device, comprising:

monitoring the on-off state of the CEC function;