CN113727179B

CN113727179B - Display equipment and method for enabling display equipment to be compatible with external equipment

Info

Publication number: CN113727179B
Application number: CN202111015572.3A
Authority: CN
Inventors: 邵亚婷; 张辉娟; 霍俊逸
Original assignee: Vidaa Netherlands International Holdings BV; Vidaa USA Inc
Current assignee: Vidaa Netherlands International Holdings BV; Vidaa USA Inc
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2024-05-14
Anticipated expiration: 2041-08-31
Also published as: CN113727179A

Abstract

The application shows the display equipment and the method for the display equipment to be compatible with the external equipment, and after the display equipment is electrified, whether the external equipment is connected successfully or not is monitored; when the connection success of the external equipment is monitored, the decoding capability parameter of the external equipment is obtained, the decoding capability parameter is used for representing the decoding capability of the external equipment, and when the media asset is played, the digital audio output format which is transmitted to the external equipment by the display equipment is determined according to the decoding capability parameter and the film source format of the media asset. Therefore, when the display device is successfully connected with the external device, the display device determines the digital audio output format of the display device transmitted to the external device by acquiring the decoding capability parameter of the external device and the film source format of the media asset, so that the problem that a user does not set or manually set the digital audio output format of the error display device transmitted to the external device can be avoided, and the user experience is improved.

Description

Display equipment and method for enabling display equipment to be compatible with external equipment

Technical Field

The application relates to the technical field of display equipment, in particular to display equipment and a method for enabling the display equipment to be compatible with external equipment.

Background

The display device has an independent operating system and supports function expansion. The display device can be connected to external devices such as a power amplifier, a Bluetooth sound box and the like according to the needs of users. In order to obtain better sound effect experience, a user can experience multi-channel film source sound effects through external equipment. Based on the difference in decoding capabilities of the external device, it often supports one or more Digital audio output formats (Digital Audio Out, DAO), such as MAT (Metamaterial Absorption Technology), DDP (Dolby Digital Plus), panoramic sound (Atmos), dolby Digital (DD), digital cinema system (DIGITAL THEATER SYSTEMS, DTS), and high definition Digital cinema system (DIGITAL THEATER SYSTEMS HIGH DEFINIT ion, DTSHD), among others.

The display device is provided with a high-definition multimedia interface (High Definition Multimedia Interface, HDMI) or an optical fiber interface, and the existing external device is accessed to the display device usually through the HDMI or the optical fiber interface. In the access process, a user needs to manually set a digital audio output format to enable the display device to be transmitted to a corresponding digital audio output format of the external device, and if the user does not manually set the digital audio output format, the digital audio output format transmitted to the external device by the display device is defaulted to be a pulse code modulation (Pulse Code Modulation, PCM) format. However, the decoding capability of the external device and the corresponding digital audio output format thereof may not be known by the user or the media asset format may not be known by the user, so that the situation that the decoding capability of the external device is not matched with the digital audio output format set by the user is easily caused.

Disclosure of Invention

The application provides display equipment and a method for enabling the display equipment to be compatible with external equipment, which can avoid the problem that a user does not set or manually sets a digital audio output format of the error display equipment transmitted to the external equipment, and improve user experience.

In some embodiments of the present application, there is provided a display device including:

A display;

an external device interface for accessing external equipment;

A controller for:

After the display equipment is powered on, monitoring whether the external equipment is connected successfully;

when the connection of the external equipment is monitored to be successful, acquiring decoding capability parameters of the external equipment, wherein the decoding capability parameters are used for representing the decoding capability of the external equipment;

and when the media asset is played, determining a digital audio output format which is transmitted to the external equipment by the display equipment according to the decoding capability parameter and the film source format of the media asset.

In some embodiments of the present application, if it is monitored that the external device is successfully connected when playing the media asset, a film source format of the media asset is obtained; and determining a digital audio output format which is transmitted to the external equipment by the display equipment according to the film source format of the media asset and the decoding capability parameter of the external equipment.

In some embodiments of the present application, if it is monitored that the external device is connected successfully when the media asset is not played, when an input media asset playing instruction indicating to play the media asset is received, a film source format of the media asset is obtained; and determining a digital audio output format which is transmitted to the external equipment by the display equipment according to the film source format of the media asset and the decoding capability parameter of the external equipment.

In some embodiments of the present application, the monitoring whether the external device is connected successfully includes: loading CEC service; acquiring external equipment information on a CEC bus through the CEC service; when the information of the external equipment is acquired, waking up the power amplifier of the external equipment; when the external equipment is successfully woken up, an ARC handshake instruction is sent;

when receiving a response of the external equipment to the ARC handshake instruction, carrying out ARC handshake with the external equipment;

And when the handshake with the external equipment is successful, determining that the external equipment is successfully connected.

In some embodiments of the application, the controller is further configured to:

when the handshake with the external equipment is successful, controlling to display a first prompt message and/or play a first voice message on the display, wherein the first prompt message and the first voice message are used for prompting a user that the external equipment is successfully connected;

when the response of the external equipment to the ARC handshake instruction is not received or the handshake with the external equipment fails, controlling to display a second prompting message and/or play a second voice message on the display, wherein the second prompting message and the second voice message are used for prompting a user that the external equipment fails to connect.

In some embodiments of the present application, when it is monitored that the external device is connected successfully, before obtaining the decoding capability parameter of the external device, the method further includes: acquiring a switching state of an automatic identification mode; and if the automatic identification mode is in an on state, acquiring decoding capability parameters of the external equipment.

In some embodiments of the application, the controller is further configured to: and responding to the input instruction for displaying the loudspeaker setting interface, and controlling to display the loudspeaker setting interface on a display, wherein the loudspeaker setting interface at least comprises a first item and a second item, the first item is used for identifying an audio output mode, the second item is used for setting the digital audio output format, and the second item is also used for identifying the currently set digital audio output format or the automatic identification mode.

In some embodiments of the present application, when the external device is connected and the automatic recognition mode is in an on state, the audio output mode of the first item identifier is ARC, and the digital audio output format of the second item identifier is the automatic recognition mode; and under the condition that the external equipment is not connected and the automatic identification mode is in an on state, the audio output mode of the first item identification is a built-in loudspeaker of the display equipment, the digital audio output format of the second item identification is in the automatic identification mode, and the second item is configured to be in an unavailable state.

In some embodiments of the present application, there is provided a method for a display device to be compatible with an external device, the method comprising:

In some embodiments of the present application, the monitoring whether the external device is connected successfully includes: loading CEC service; acquiring external equipment information on a CEC bus through the CEC service; when the information of the external equipment is acquired, waking up the power amplifier of the external equipment; when the external equipment is successfully woken up, an ARC handshake instruction is sent; when receiving a response of the external equipment to the ARC handshake instruction, carrying out ARC handshake with the external equipment; and when the handshake with the external equipment is successful, determining that the external equipment is successfully connected.

Therefore, when the display equipment is successfully connected with the external equipment, the display equipment determines the digital audio output format which is transmitted to the external equipment by the display equipment by acquiring the decoding capability parameter of the external equipment, so that the problem that a user does not set or manually sets the digital audio output format which is transmitted to the external equipment by the error display equipment can be avoided, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

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

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

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

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

FIG. 5 illustrates a schematic diagram of a sound setup interface 500 according to some embodiments;

fig. 6 illustrates a schematic diagram of a speaker setup interface 600 according to some embodiments;

FIG. 7 illustrates a schematic diagram of a digital audio output format setting interface 700, according to some embodiments;

FIG. 8 illustrates a display device configuration flow diagram in accordance with some embodiments;

FIG. 9 illustrates a display device configuration flow diagram in accordance with some embodiments;

FIG. 10 illustrates a first hint message schematic according to some embodiments;

fig. 11 illustrates a schematic diagram of a speaker setup interface 1100 according to some embodiments.

Detailed Description

For the purposes of making the objects and embodiments of the present application more apparent, an exemplary embodiment of the present application will be described in detail below with reference to the accompanying drawings in which exemplary embodiments of the present application are illustrated, it being apparent that the exemplary embodiments described are only some, but not all, of the embodiments of the present application.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

The terms first, second, third and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar 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," "comprising," and "having," 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 explicitly 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 or/and software code that is capable of performing the function associated with that element.

Fig. 1 schematically illustrates a use scenario of a display device according to an exemplary embodiment. As shown in fig. 1, the display device 200 is also in data communication with a server 400, and a user can operate the display device 200 through the smart device 300 or the control apparatus 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 infrared protocol communication or bluetooth protocol communication, and other short-range communication modes, and the display device 200 is controlled by a wireless or wired mode. 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 one of a mobile terminal, tablet, computer, notebook, AR/VR device, etc.

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 running on a 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 perform control 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 device for acquiring voice commands, or the voice command control of the user may be received through a voice control apparatus configured outside the display device 200 device.

In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be permitted to make communication connections via 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 device 200. The server 400 may be a cluster, or may be multiple clusters, and may include one or more types of servers.

In some embodiments, software steps performed by one step execution body may migrate on demand to be performed on another step execution body in data communication therewith. For example, software steps executed by the server may migrate to be executed on demand on a display device in data communication therewith, and vice versa.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 in accordance with 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 of a user, and convert the operation instruction into an instruction recognizable and responsive to the display device 200, and may perform an interaction between the user and the display device 200.

In some embodiments, the communication interface 130 is configured to communicate with the outside, including 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, keys, or an alternative module.

Fig. 3 shows a hardware configuration block diagram of the display device 200 in accordance with an exemplary embodiment.

In some embodiments, display apparatus 200 includes at least one of a modem 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, 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, RAM, ROM, a first interface for input/output to an nth interface.

In some embodiments, the display 260 includes a display screen component for presenting a picture, and a driving component for driving an image display, for receiving an image signal from the controller output, for displaying video content, image content, and components of a 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 modem 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, or other network communication protocol chip or a near field communication protocol chip, 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 capturing the intensity of ambient light; either the detector 230 comprises an image collector, such as a camera, which may be used to collect external environmental scenes, user attributes or user interaction gestures, or the detector 230 comprises a sound collector, such as a microphone or the like, for receiving 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, or the like. The input/output interface may be a composite input/output interface formed by a plurality of interfaces.

In some embodiments, the controller 250 and the modem 210 may be located in separate devices, i.e., the modem 210 may also be located in an external device to the main device in which the controller 250 is located, such as an external set-top box or the like.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored on the memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command to select 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 operable control. The operations related to the selected object are: displaying an operation of connecting to a hyperlink page, a document, an image, or the like, or executing an operation of a program corresponding to the icon.

In some embodiments the controller includes at least one of a central processing unit (Central Processing Unit, CPU), a video processor, an audio processor, a graphics processor (Graphics Processing Unit, GPU), RAM Random Access Memory, RAM), ROM (Read-Only Memory, ROM), first to nth interfaces 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 received from the outside, so as to finally display and play various audio and video contents. The CPU processor may include a plurality of processors. Such as one main processor and one or more sub-processors.

In some embodiments, a graphics processor is used to generate various graphical objects, such as: at least one of icons, operation menus, and user input instruction display graphics. The graphic processor comprises an arithmetic unit, which is used for receiving various interactive instructions input by a user to operate and displaying various objects according to display attributes; the device 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, perform at least one of decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image composition, and the like according to a standard codec protocol of an input signal, and obtain a signal that is displayed or played on the directly displayable device 200.

In some embodiments, the video processor includes at least one of a demultiplexing module, a video decoding module, an image compositing 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 demultiplexed video signal, including decoding, scaling and the like. And an image synthesis module, such as an image synthesizer, for performing superposition mixing processing on the graphic generator and the video image after the scaling processing according to the GUI signal input by the user or generated 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 frame rate into a video output signal and changing the video output signal to be in accordance with a display format, such as outputting RGB data signals.

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

In some embodiments, a user may input a user command through a Graphical User Interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the Graphical User Interface (GUI). Or the user may input the user command by inputting a specific sound or gesture, the user input interface recognizes the sound or gesture through the sensor, and receives the user input command.

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

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

In some embodiments, a system of display devices 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 architecture that allows users to manage files, run programs, and use the system. After power-up, the kernel is started, the kernel space is activated, hardware is abstracted, hardware parameters are initialized, virtual memory, a scheduler, signal and inter-process communication (IPC) are operated and maintained. After the kernel is started, shell and user application programs are loaded again. The application program is compiled into machine code after being started to form a process.

As shown in fig. 4, a system of display devices 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 architecture that allows users to manage files, run programs, and use the system. After power-up, the kernel is started, the kernel space is activated, hardware is abstracted, hardware parameters are initialized, virtual memory, a scheduler, signal and inter-process communication (IPC) are operated and maintained. After the kernel is started, shell and user application programs are loaded again. The application program is compiled into machine code after being started to form a process.

As shown in fig. 4, the system of the display device is divided into three layers, an application layer, a middleware layer, and a hardware layer, from top to bottom.

The application layer mainly comprises common applications on the television, and an application framework (Application Framework), wherein the common applications are mainly applications developed based on Browser, such as: HTML5 APPs; a native application (NATIVE APPS);

The application framework (Application Framework) is a complete program model with all the basic functions required by standard application software, such as: file access, data exchange, and the interface for the use of these functions (toolbar, status column, menu, dialog box).

The native application (NATIVE APPS) may support online or offline, message pushing, or local resource access.

The middleware layer includes middleware such as various television protocols, multimedia protocols, and system components. The middleware can use basic services (functions) provided by the system software to connect various parts of the application system or different applications on the network, so that the purposes of resource sharing and function sharing can be achieved.

The hardware layer mainly comprises a HAL interface, hardware and a driver, wherein the HAL interface is a unified interface for all the television chips to be docked, and specific logic is realized by each chip. The driving mainly comprises: audio drive, display drive, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (e.g., fingerprint sensor, temperature sensor, pressure sensor, etc.), and power supply drive, etc.

In some embodiments, the user interface includes a sound setup interface provided by a system setup application. Fig. 5 schematically illustrates a Sound (Sound) setting interface 500 according to an exemplary embodiment, as shown in fig. 5, the Sound setting interface 500 includes a Sound Mode control 501, a headset control 502, a Sound Mode setting (Sound Mode Sett ings) control 503, and a speaker (Speakers) control 504. Clicking on the corresponding control by the user may enter the setting interface of the corresponding control. For example, when a speaker needs to be set, the user clicks on speaker control 504 to enter a speaker setup interface where the speaker setup interface is operable to complete the setup of the speaker.

Fig. 6 illustrates a schematic diagram of a speaker setup interface 600 in accordance with an exemplary embodiment, as shown in fig. 6, the speaker setup interface 600 includes an Audio Output (Audio Output) control 601, a digital Audio Output format (Digital Audio Out) control 602, a digital Audio delay (Digital Audio Delay) control 603, a Lip Sync (Lip Sync) control 604, a Balance (Balance) control 605, and an enhanced Audio return channel (eARC) control 606. Wherein a user clicking on audio output control 601 may enter an audio output setup interface where an audio output channel may be selected. For example, the audio output channel may select an audio return channel (Audio Return Channel, ARC) when the display device is connected to an external device, and the audio output channel may select a display device internal speaker (TV SPEAKER) when the external device is not connected. Clicking on the digital audio output format control 602 by the user may enter a digital audio output format setting interface, which often includes a plurality of digital audio output format options, which the user may set the digital audio output format by selecting a certain option.

The built-in sound of the existing display device may not meet the requirement of the user on sound quality, and in order to obtain better sound effect experience, the user can experience multi-channel film source sound effect through the external device. External devices typically support one or more digital audio output formats based on their decoding capabilities, such as: MAT, DDP, atmos, DD, DTS, DTSHD, and the like. The display device is often provided with an HDMI interface and an optical fiber interface, and the display device is often connected to external equipment through the HDMI interface or the optical fiber interface. In the process of accessing the external equipment, if the user does not read the operation manual in detail, the mode of manually setting the digital audio output format is not known, so that the user may not manually set or set errors manually. If the user does not manually set the digital audio output format, because the default digital audio output format of the existing display device is the PCM format, the external device can only play the audio in the PCM format when the user does not perform correct manual setting on the display device, and the audio experience of the user is affected.

Fig. 7 schematically illustrates a Digital audio output format setting interface 700 according to an exemplary embodiment, as shown in fig. 7, the Digital audio output format setting interface 700 includes an automatic recognition mode (Auto) control 701, a Pass Through control 702, a PCM control 703, dolby Digital controls 704, dolby Digital Plus control 705, and a user can set a certain Digital audio output format by selecting a certain control. For example, when the direct out control 702 is selected by the user, the display device directly outputs the playing media asset format, and if the media asset format is Dolby Digital, the display device supports to output the Dolby Digital format, that is, directly plays the audio in Dolby Digital format. If the PCM control 703 is selected by the user, the display device converts the media asset format to PCM format, and the default digital audio output format of the existing display device is PCM format. If either Dolby Digital control 704 or Dolby Digital Plus control 705 is selected by the user, the display device will output the Dolby sound effect format. The dolby sound effect format outputs surround sound which can meet the full range, and the sound effect experience of users can be improved. However, it should be noted that, if the media source format is Dolby Digital, although the display device supports outputting Dolby Digital, if the user does not manually set the audio source format, the display device still defaults to PCM format, and the external device can only play the audio effect of PCM format. It should be noted that, if the auto-id mode control 701 is selected by the user, the display device may automatically identify the most suitable digital audio output format in combination with the decoding capability and the film source format of the external device, without requiring manual setting by the user.

When the user performs manual setting, because the user may have a situation that the Digital audio output format is not known or the Digital audio output format of the media asset is not known, when the user enters the Digital audio output format setting interface, the user may have a wrong selection situation, for example, because the user does not know the meaning represented by the PCM control 703, the Dolby Digital control 704 and the Dolby Digital Plus control 705, and the user does not know the Digital audio output format of the media asset, the user arbitrarily selects the PCM control 703 as the Digital audio output format, and in fact, the Digital audio output format of the media asset is Dolby Digital, the user cannot accurately match the Digital audio output format of the display device with the media asset format, so that the manual setting is wrong, and further the audio experience of the user is affected.

Therefore, the existing method of selecting the digital audio output format to the default PCM format by the display device can have the problem that the user does not perform manual setting or has a wrong manual setting, and the sound effect experience of the user is affected.

In order to solve the technical problems, the digital audio output format option of the display device provided by the application defaults to an automatic identification mode, so that when the display device is successfully connected with the external device, the display device determines the digital audio output format of the display device transmitted to the external device by acquiring the decoding capability parameter of the external device and the film source format of the media asset, the problem that a user does not set or manually set the digital audio output format of the wrong display device transmitted to the external device can be avoided, and the user experience is improved.

If the digital Audio output format option defaults to the PCM format, and the display device outputs the digital Audio output format through the ARC, the digital Audio output format supported by the external device is not considered at this time, and when the media asset source format is the dolby format, the dolby panoramic sound format, the binaural PCM format, the advanced Audio Coding (Advanced Audio Coding, AAC) format, and the high-efficiency advanced Audio Coding (HIGH EFFICIENCY ADVANCED Audio Coding) format, the digital Audio output format supported by the external device is the binaural PCM format because the digital Audio output format option defaults to the PCM format, and when the media asset source format is the DTS format, the digital Audio output format supported by the external device is the PCM format. If the user does not perform manual setting or is wrong in manual setting, the PCM or binaural PCM format sound effect can be experienced only through the external equipment.

According to the application, the digital audio output format option is defaulted to an automatic identification mode, and when the display equipment outputs the digital audio output format through the ARC, the digital audio output format supported to play by the external equipment can be determined by acquiring the decoding capability parameter of the external equipment. The digital audio output formats referred to below, such as Dolby compressed audio format (Dolby Audio Compress ion Dolby-AC 4), MAT, dolby lossless audio format (Dolby TrueHD), etc., are all existing digital audio output formats, and will not be explained in detail.

If the external device supports the digital audio output format to be MAT2.x, when the media source format is Dolby-AC4, DD, dolby TrueHD, MAT or the combination of a plurality of source formats, the external device supports the digital audio output format to be played to be MAT2.x or multichannel PCM (Multi-CHANNEL PCM); when the media resource formats are Dolby panoramic sound formats Dolby-AC4, DD, dolby TrueHD, MAT or a combined form of a plurality of film source formats, the digital audio output format supported by the external equipment to play is MAT2.X or panoramic sound; when the media asset source format is a double-channel PCM format, the digital audio output format supported by the external equipment to play is MAT2.x or double-channel PCM (2 chPCM); when the media asset source format is AAC/HEAAC format, the digital audio output format supported by the external equipment to play is MAT2.x or PCM.

If the external equipment supports the digital audio output format to be DDP panoramic sound but does not support MAT2.X, when the media resource format is Dolby-AC4, DD, dolby TrueHD, MAT or the combined form of a plurality of source formats, the external equipment supports the digital audio output format to be played to be DDP; when the media resource formats are Dolby panoramic sound formats Dolby-AC4, DD, dolby TrueHD, MAT or a combined form of a plurality of film source formats, the digital audio output format supported by the external equipment to play is DDP panoramic sound; when the media asset source format is a dual-channel PCM format, the external equipment supports the DDP with the digital audio output format of 2.0 version; when the media asset source format is AAC or HEAAC, the digital audio output format supported by the external equipment to play is DDP.

If the external equipment supports the digital audio output format as DDP, but does not support DD panoramic sound and MAT2.X, when the media resource formats are Dolby-AC4, DD, dolby TrueHD, MAT or the combination of a plurality of source formats, the external equipment supports the played digital audio output format as DDP; when the media resource formats are Dolby panoramic sound formats Dolby-AC4, DD, dolby TrueHD, MAT or a combination form of a plurality of film source formats, the digital audio output format supported by the external equipment to play is DDP; when the media asset source format is a dual-channel PCM format, the external equipment supports the DDP with the digital audio output format of 2.0 version; when the media asset source format is AAC or HEAAC, the digital audio output format supported by the external equipment to play is DDP.

If the external equipment supports the digital audio output format to be MAT2.x, when the media source formats are Dolby-AC4, DD, dolby TrueHD, MAT or the combination of a plurality of source formats, the external equipment supports the digital audio output format to be played to be MAT2.x or multichannel PCM; when the media resource formats are Dolby panoramic sound formats Dolby-AC4, DD, dolby TrueHD, MAT or a combined form of a plurality of film source formats, the digital audio output format supported by the external equipment to play is MAT2.X or panoramic sound; when the media asset source format is a double-channel PCM format, the digital audio output format supported by the external equipment to play is MAT2.x or double-channel PCM; when the media asset source format is AAC or HEAAC, the digital audio output format supported by the external equipment to play is MAT2.x or PCM.

If the external equipment supports the digital audio output format as DD but does not support MAT2.X and DDP, when the media source format is Dolby-AC4, DD, dolby TrueHD, MAT or the combination of a plurality of source formats, the external equipment supports the played digital audio output format as DD; when the media resource formats are Dolby panoramic sound formats Dolby-AC4, DD, dolby TrueHD, MAT or a combination of a plurality of film source formats, the digital audio output format supported by the external equipment to be played is DD; when the media asset source format is a dual-channel PCM format, the external equipment supports DD with the digital audio output format of 2.0 version; when the media asset source format is AAC or HEAAC, the external device supports the digital audio output format of playing to be DD.

If the external device does not support the digital audio output formats of DD, DDP and MAT2.X, when the media source formats are the dolby format, the dolby panoramic sound format, the binaural PCM format, the AAC format, the HEAAC format and the DTS format, the external device supports the digital audio output formats of playing to be the binaural PCM format.

When the media source format is DTS format, if the external equipment supports the DTS format, the digital audio format supported by the external equipment for playing is DTS, and if the external equipment does not support the DTS format, the digital audio format supported by the external equipment for playing is PCM format.

From the above embodiments, it can be seen that the manner in which the present application is shown enriches the digital audio output format by defaulting the digital audio output format item to an automatic recognition mode as compared to defaulting the digital audio format item to PCM format in the prior art.

An embodiment of the present application shows a display apparatus including: a display; an external device interface, such as an HDMI interface or an optical fiber interface, for accessing external equipment; a controller for performing the following steps shown in fig. 8:

step S801: after the display device is powered on, whether the external device is connected successfully is monitored.

In some embodiments, the external device includes a bluetooth speaker, a power amplifier, and the like. The HDMI or the optical fiber interface on the display device of the external device is connected to the display device, for example, the HDMI or the optical fiber of the external device is inserted into the display device, the display device transmits a connection signal to the external device, and the external device receives the connection signal and establishes a connection relation with the display device.

Step S802: and when the connection success of the external equipment is monitored, acquiring decoding capability parameters of the external equipment, wherein the decoding capability parameters are used for representing the decoding capability of the external equipment.

Step S803: and when the media asset is played, determining a digital audio output format which is transmitted to the external equipment by the display equipment according to the decoding capability parameter and the film source format of the media asset.

Decoding is a process of restoring a number to what it represents in a specific way. Transparent transmission is a transmission manner in which transmitted contents are transmitted from a source address to a destination address without any change to the contents. When the display equipment is connected with the external equipment, the display equipment transmits the Digital audio output format to the external equipment in a Digital signal mode through an HDMI (high-definition multimedia interface) wire or an optical fiber wire, the capability of the external equipment for receiving the Digital signal and restoring the Digital signal into the Digital audio output format is decoding capability, the media resource format is taken as a Dolby Digital as an example, when the display equipment transmits the Dolby Digital format to the external equipment in a Digital signal mode through the HDMI wire, the external equipment receives the Digital signal, and if the external equipment can restore the Digital signal into the Dolby Digital format, the external equipment supports playing of the Dolby Digital format; if the external device cannot restore the Digital signal to the Dolby Digital format, the external device does not support playing the Dolby Digital format.

In one implementation, the digital audio output format supported by the external device includes: DD. DDP, MAT. The digital audio output format supported by the external equipment is the decoding capability parameter of the external equipment.

In the practical application process, various modes exist for monitoring whether the external equipment is connected successfully. For example, the display device monitors whether the external device is successfully connected through a consumer electronics control (Consumer Electronics Control, CEC) service.

The CEC service is a complete set of single-wire overall protocols, and the display device can control all HDMI-connected devices on the HDMI interface through the CEC service and allow HDMI devices to command control to each other without user intervention. The HDMI includes a CEC bus, which is a universal control bus for interconnection of HDMI devices, and an audio return (Audio Return Channel, ARC) channel. The ARC channel is used for outputting television digital audio and can be connected with external equipment which also supports the ARC function, and the sound of the display equipment is transmitted to the external equipment.

In one implementation, the display device monitors whether the external device is successfully connected through the CEC service. After the external equipment is powered on, the external equipment is accessed to the display equipment through an external device interface, CEC service is loaded, and when the external equipment does not receive any instruction, the external equipment enters a standby mode. As shown in fig. 9, the display device controller performs the steps of:

step S901: the CEC service is loaded.

In the scheme shown in this embodiment, the display device supports CEC service, and after the display device is powered on, the CEC service is directly loaded to manage all devices connected to HDMI.

Step S902: external equipment information on a CEC bus is acquired through CEC service.

In some embodiments, the CEC service includes a device lookup module and an acquisition module, where the device lookup module is configured to lookup external device information on the CEC bus to facilitate establishing a connection between the display device and the external device. When the external equipment information is found, the acquisition module acquires the external equipment information, wherein the external equipment information comprises an external equipment name, an external equipment manufacturer and an external equipment insertion interface. Through obtaining the external equipment information, a user can know the external equipment name, the external equipment manufacturer and the external equipment insertion interface, and the external equipment management is facilitated for the user.

Step S903: when the information of the external equipment is acquired, the power amplifier of the external equipment is awakened.

In some embodiments, when the external device information is acquired, the display device does not send any instruction to instruct the external device to respond, and when the external device does not receive any instruction, the external device enters a standby mode. When the external equipment is in a standby mode, the display equipment sends a wake-up power amplifier instruction to the external equipment, and at the moment, the external equipment responds to the wake-up power amplifier instruction of the display equipment and enters a starting state, and the external equipment wakes up the power amplifier. By adopting the implementation mode, the power amplifier is awakened when the external equipment is in the starting-up state, so that other instructions sent by the display equipment can be received conveniently. If the external device does not wake up the power amplifier, when the display device sends other instructions, such as a SAD (Short Audio Descriptor) instruction, for obtaining the decoding capability parameter of the external device, the external device may not respond because the external device is in a standby state.

Step S904: and when the external equipment is successfully woken up, an ARC handshake instruction is sent.

In some embodiments, the ARC may send the display device media asset audio to the external device without disabling the on-board speakers of the display device. The display device establishes a connection with the external device by sending an ARC handshake instruction for sending audio from the ARC port to the external device.

Step S905: and when receiving the response of the external equipment to the ARC handshake instruction, carrying out ARC handshake with the external equipment.

Step S906: and when the handshake with the external equipment is successful, determining that the external equipment is successfully connected.

In some embodiments, the external device receives an ARC handshake instruction sent by the display device, enters a state of waiting for ARC handshake, responds to the ARC handshake instruction sent by the display device, and reports that the display device is in the state of waiting for ARC handshake. And after the display equipment receives the ARC handshake instruction responded by the external equipment, carrying out ARC handshake with the external equipment.

In one implementation, when the display device obtains the external device information, the display device may send the ARC handshake instruction, and the display device may not necessarily wake up the external device to successfully power amplifier and then send the ARC handshake instruction. The send ARC handshake instruction may also be at other points in time. The embodiment includes, but is not limited to, setting the ARC handshake instruction to be sent after the external device is successfully woken up. The ARC handshake sending instruction is set after the external equipment is successfully woken up to successfully power amplifier, so that a better technical realization effect can be achieved.

In one implementation, the controller is further configured to:

In some embodiments, fig. 10 schematically illustrates a first hint message according to an embodiment of the present application, where the first hint message is in the form of an image as shown in fig. 10. When the display device is successfully connected with the external device, the display device controls the display to display a first prompt message image for informing a user that the external device is successfully connected.

In one implementation, the second alert message is in the form of sound. When the display device is not connected with the external device or fails to be connected, the display device controls the internal speaker to send out a prompt tone, for example: and the equipment connection failure is used for informing the user that the external equipment is not connected or the connection fails.

In one implementation manner, when the connection of the external device is monitored to be successful, before the decoding capability parameter of the external device is obtained, the method further includes:

Acquiring a switching state of an automatic identification mode;

and if the automatic identification mode is in an on state, acquiring decoding capability parameters of the external equipment.

In some embodiments, the display device is in an auto-id mode state when the auto-control of the digital audio output format setting interface is in an activated state.

It should be noted that, in the solution shown in this embodiment, the display device defaults the digital audio output format to the automatic control, so that the display device can directly obtain the state of the automatic recognition mode, without entering the digital audio output format interface to manually select the automatic control.

In some embodiments, when the display device is connected to the external device, the method includes two situations that the display device is playing media asset or not playing media asset.

In one implementation, the controller is further configured to:

when the media asset is played, if the external equipment is monitored to be accessed, acquiring a media asset film source format when the external equipment is monitored to be connected successfully;

and determining a digital audio output format which is transmitted to the external equipment by the display equipment according to the media resource format and the decoding capability parameter of the external equipment.

In one implementation, when the display device plays the media asset, if the CEC service monitors that there is external device access, after the ARC handshake connection is successful, acquiring the media asset source format through the audio packet information bit (Audio Package information bit), taking the media asset source format as Dolby Digital as an example, and acquiring the media asset source format as Dolby Digital; in one implementation, the decoding capability parameters of the external device include: dolby Digital, dolby Digital Plus; and determining that the Digital audio output format transmitted to the external equipment by the display equipment is Dolby Digital according to the media asset source format and the decoding capability parameter of the external equipment.

It should be noted that, the display device defaults the digital audio output format on the automatic control, when the display device plays media, the external device is connected, the display device can directly acquire the automatic recognition mode state without manual setting, when the display device is in the automatic recognition mode state, the display device can directly send a CEC command to acquire the decoding capability parameter of the external device, and when the external device receives the CEC command sent by the display device, the external device reports the decoding capability parameter.

In one implementation, the controller is further configured to:

If the external equipment is monitored to be connected successfully, acquiring a media file source format when an input media play instruction is received;

In one implementation, when it is monitored that the external device is successfully connected, the display device may acquire the decoding capability parameter of the external device, but at this time, since media is not played, the digital audio output format that is transmitted from the display device to the external device cannot be determined. When an input media playing instruction is received, a media film source format is obtained through an audio packet information bit, and a digital audio output format which is transmitted to the external device by the display device is determined according to the media film source format and decoding capability parameters of the external device. Because of the matching relationship between the media asset format and the digital audio output format supported by the external device in the foregoing embodiment, details are not repeated here.

In one implementation, the controller is further configured to:

And responding to the input instruction for displaying the loudspeaker setting interface, controlling the loudspeaker setting interface to be displayed on a display, wherein the loudspeaker setting interface at least comprises a first item and a second item, the first item is used for identifying an audio output mode, the second item is used for setting the digital audio output format, and the second item is also used for identifying the currently set digital audio output format or an automatic identification mode.

In some embodiments, the first item is an audio output control, the second item is a digital audio output format control, and clicking on the audio output control may enter an audio output settings interface comprising at least: ARC control and display device built-in speaker control. Clicking on the digital audio output format control may enter a digital audio output format interface that includes at least an automatic control and a PCM control, but is not limited to the controls described above.

It should be noted that, the display device defaults the output format of the digital audio format to the automatic control, and may still manually set and select other controls. Such as PCM controls, dolby Digital controls, etc.

In one implementation, the controller further includes:

when the connection of the external equipment is monitored to be successful, controlling the display of the first item identification audio output mode as ARC and the display of the second item identification digital audio output format as an automatic identification mode;

when the connection failure or the unconnected state of the external equipment is detected, controlling the display of the first item identification audio output mode on the display to be the built-in speaker of the display equipment, displaying the ash placement of the second item for identifying that the second item cannot be set.

Fig. 11 schematically illustrates a speaker setup interface 1100 output by an embodiment of the present application. As shown in fig. 11, the speaker setting interface 1100 includes an Audio Output (Audio Output) control 1101, a digital Audio Output format (Digital Audio Out) control 1102, a digital Audio delay (Digital Audio Delay) control 1103, a Lip Sync (Lip Sync) control 1104, a Balance (Balance) control 1105, and an enhanced Audio backhaul channel (eARC) control 1106, where when it is detected that the external device is connected or disconnected, the Audio Output control 1101 identifies that the Output mode is a built-in speaker of the display device, and the digital Audio Output format control 1102, the digital Audio delay control 1103, and the enhanced Audio backhaul channel control 1106 are all gray and cannot be set. Although the digital audio output format control 1102 is grayed out, it still identifies the setting on the auto-id mode.

Based on the above embodiments, the present application exemplarily shows a possible display device compatible method, including:

In one implementation, the method for monitoring whether the external device is successfully connected includes:

Loading CEC service;

Acquiring external equipment information on a CEC bus through the CEC service;

when the information of the external equipment is acquired, waking up the power amplifier of the external equipment;

When the external equipment is successfully woken up, an ARC handshake instruction is sent;

And receiving an ARC handshake instruction responded by the external equipment to perform ARC handshake.

And when the connection success of the external equipment is monitored, acquiring decoding capability parameters of the external equipment, wherein the decoding capability parameters are used for representing digital audio output formats supported by the external equipment, and the decoding capability parameters are used for determining the digital audio output formats transmitted to the external equipment by the display equipment.

In one implementation, if the connection of the external equipment is monitored to be successful when the media asset is played, acquiring a film source format of the media asset;

and determining a digital audio output format which is transmitted to the external equipment by the display equipment according to the film source format of the media asset and the decoding capability parameter of the external equipment.

In one implementation, if the connection of the external device is monitored to be successful when the media asset is not played, acquiring a film source format of the media asset when an input media asset playing instruction indicating to play the media asset is received;

It should be understood that, for a specific implementation manner of each step in the above-mentioned display device compatibility method, reference may be made to the foregoing display device embodiment, which is not described herein. As can be seen from the above embodiments, according to the display device and the display device compatible method, when the display device is successfully connected with the external device, the display device determines the digital audio output format of the external device transmitted from the display device by acquiring the decoding capability parameter of the external device, so that the problem that the user does not set or manually set the digital audio output format of the external device transmitted from the wrong display device can be avoided, and the user experience is improved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. 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, characterized by comprising:

A display;

an external device interface for accessing external equipment;

A controller for:

default setting of digital audio output format options of a speaker setup interface of a display device to an automatic recognition mode;

after the display device is powered on, whether the external device is connected successfully is monitored, and the method comprises the following steps:

Loading CEC service;

Acquiring external equipment information on a CEC bus through the CEC service, wherein the CEC service comprises an equipment searching module and an acquiring module, the equipment searching module is used for searching external equipment information on the CEC bus so as to conveniently establish connection between display equipment and external equipment, and when the external equipment information is searched, the acquiring module acquires the external equipment information, and the external equipment information comprises an external equipment name, an external equipment manufacturer and an external equipment insertion interface;

When handshake with the external equipment is successful, determining that the external equipment is successfully connected;

Acquiring a switching state of an automatic identification mode;

if the automatic identification mode is in an on state, when the connection success of the external equipment is monitored, acquiring decoding capability parameters of the external equipment, wherein the decoding capability parameters are used for representing the decoding capability of the external equipment;

2. The display device of claim 1, wherein determining a digital audio output format that the display device transparently transmits to the external device based on the decoding capability parameter and a film source format of the asset when the asset is played comprises:

if the connection of the external equipment is monitored to be successful when the media asset is played, acquiring a film source format of the media asset;

3. The display device of claim 1, wherein determining a digital audio output format that the display device transparently transmits to the external device based on the decoding capability parameter and a film source format of the asset when the asset is played comprises:

If the connection of the external equipment is monitored to be successful when the media asset is not played, acquiring a film source format of the media asset when an input media asset playing instruction indicating to play the media asset is received;

4. The display device of claim 1, wherein the controller is further configured to:

5. The display device of claim 1, wherein the controller is further configured to:

and responding to the input instruction for displaying the loudspeaker setting interface, and controlling to display the loudspeaker setting interface on a display, wherein the loudspeaker setting interface at least comprises a first item and a second item, the first item is used for identifying an audio output mode, the second item is used for setting the digital audio output format, and the second item is also used for identifying the currently set digital audio output format or the automatic identification mode.

6. The display device of claim 5, wherein the display device comprises a display device,

Under the condition that the external equipment is connected and the automatic identification mode is in an on state, the audio output mode of the first item identifier is ARC, and the digital audio output format of the second item identifier is the automatic identification mode;

And under the condition that the external equipment is not connected and the automatic identification mode is in an on state, the audio output mode of the first item identification is a built-in loudspeaker of the display equipment, the digital audio output format of the second item identification is in the automatic identification mode, and the second item is configured to be in an unavailable state.

7. A method for a display device to be compatible with an external device, the method comprising:

Loading CEC service;

Acquiring a switching state of an automatic identification mode;