WO2020248699A1

WO2020248699A1 - Sound processing method and display apparatus

Info

Publication number: WO2020248699A1
Application number: PCT/CN2020/084741
Authority: WO
Inventors: 陈俊宁; 左剑; 庄宿国
Original assignee: 海信视像科技股份有限公司
Priority date: 2019-06-10
Filing date: 2020-04-14
Publication date: 2020-12-17
Also published as: CN112073789A; CN112073789B

Abstract

Embodiments of the present application disclose a sound processing method and a display apparatus, which are particularly applicable to a social television. According to a technical solution provided in the embodiments of the application, a first chip receives audio data and video data; if the audio data includes data in an AC-4 format, a first controller sends the audio data to a second controller via a first port such that the second controller controls the output of a speaker according to the received audio data, and sends the video data to the second controller via a second port such that the second controller controls the output of a display device according to the received video data; and if the audio data does not include data in the AC-4 format, the first controller sends the audio data and the video data to the second controller via the second port. The invention thus ensures that audio data in all formats can be transmitted between the first chip and a second chip, thereby effectively solving the problem in which audio data in the AC-4 format cannot be transparently transmitted via HDMI channels.

Description

A sound processing method and display device

This application requires a Chinese patent application to be submitted to the Chinese Patent Office on June 10, 2019, with an application number of 201910498221.9, and an application title of "A dual-hardware sound transmission method and system" and a Chinese patent on December 11, 2019 Office, application number 201911264182.2, application title of the priority of the Chinese patent application "a dual-hardware sound transmission method and system", the entire content of which is incorporated into this application by reference.

Technical field

The embodiments of the present application relate to display technology. More specifically, it relates to a sound processing method and a display device.

Background technique

Currently, since the display device can provide users with playback screens such as audio, video, and pictures, it has received widespread attention from users. In recent years, users have increasingly demanded functions for display devices. For example, a user wants to watch high-definition cable TV through a display device, and sometimes the user wants to watch Internet TV through a display device.

The inventor found that a dual hardware display device can simultaneously meet the above-mentioned needs of users. Generally, a dual hardware display device includes two chips, a first chip and a second chip. The second chip is used to receive wired multimedia signals, and the first chip is used to receive network multimedia signals. The network multimedia signals of the first chip include network audio data and network video signals. The first chip needs to transmit network multimedia files to the second Two chips, the second chip plays the network audio data transmission speaker in the multimedia file.

Due to the diversity of the source formats of the network audio data, the first chip and the second chip are connected through HDMI channels, and for some special format audio data, HDMI channels cannot be passed.

Therefore, there is an urgent need for a sound transmission method to solve the problem that some special format audio data cannot be transmitted from the first chip to the second chip.

Summary of the invention

Based on the above technical problems, the purpose of this application is to provide a sound processing method and a display device.

In a first aspect, the present application provides a display device, including: a first controller, the first controller is provided with a first port and a second port; a second controller communicatively connected with the first controller Speaker, the speaker is connected to the second controller, the speaker is connected to the first controller through the second controller; a display, the display is connected to the second controller , The display is connected to the first controller through the second controller;

The first controller is configured to: receive input audio and video data, the audio and video data including audio data and video data; when the audio data includes AC4 format, the first controller through the first The port sends the audio data to the second controller so that the second controller controls the output of the speaker according to the received audio data, and sends the video data to the second port through the second port The second controller allows the second controller to control the output of the display according to the received video data; when the audio data does not include the AC4 format, the first controller uses the second port The audio data and the video data are sent to the second controller, so that the second controller controls the output of the speaker according to the received audio data, and controls the output of the speaker according to the received video data. The output of the display.

In a second aspect, the present application provides a display device, including: a first controller provided with a first port and a second port; a second controller communicatively connected with the first controller Speaker, the speaker is connected to the second controller, the speaker is connected to the first controller through the second controller; a display, the display is connected to the second controller , The display is connected to the first controller through the second controller;

The first controller is configured to: receive input audio and video data, the audio and video data including audio data and video data; when the audio data includes an audio data format that is not supported by the second port, the The first controller sends the audio data to the second controller through the first port so that the second controller controls the output of the speaker according to the received audio data, and the second controller The port sends the video data to the second controller so that the second controller controls the output of the display according to the received video data; when the second port supports the format of the audio data , The first controller sends the audio data and the video data to the second controller through the second port, so that the second controller controls the speaker according to the received audio data And control the output of the display according to the received video data.

In a third aspect, the present application provides a display device, including: a first controller, the first controller is provided with a first port and a second port; and a second controller communicatively connected with the first controller Speaker, the speaker is connected to the second controller, the speaker is connected to the first controller through the second controller; a display, the display is connected to the second controller , The display is connected to the first controller through the second controller;

The second controller is configured to: when the audio data includes the AC4 format, receive the first controller to send the audio data to the second controller through the first port, and receive the first controller through the second controller. The two ports send the video data, where the audio data and the video data are data in the audio and video data received by the first controller; when the audio data does not include the AC4 format, the first The controller sends the audio data and the video data to the second controller through the second port; controls the output of the speaker according to the received audio data, and controls the display according to the received video data Output.

In a fourth aspect, the present application provides a sound processing method applied to a first controller in a display device, and the method includes:

Receiving input audio and video data, where the audio and video data includes audio data and video data;

When the audio data includes the AC4 format, the first controller sends the audio data to the second controller through the first port so that the second controller controls the output of the speaker according to the received audio data , Sending the video data to the second controller through the second port, so that the second controller controls the output of the display according to the received video data;

When the audio data does not include the AC4 format, the first controller sends the audio data and the video data to the second controller through the second port, so that the second controller can respond to the received audio Data controlling the output of the speaker, and controlling the output of the display according to the received video data;

Wherein, the first controller is provided with a first port and a second port; the second controller is communicatively connected with the first controller; the speaker is connected with the second controller, the speaker The second controller is connected to the first controller; the display is connected to the second controller, and the display is connected to the first controller through the second controller.

In a fifth aspect, the present application provides a sound processing method applied to a first controller in a display device, and the method includes:

When the audio data includes an audio data format that is not supported by the second port, the first controller sends the audio data to the second controller through the first port so that the second controller can respond to the received audio data. Data controlling the output of the speaker, and sending the video data to a second controller through a second port so that the second controller controls the output of the display according to the received video data;

When the second port supports the audio data format, the first controller sends the audio data and the video data to the second controller through the second port, so that the second controller will The audio data of controlling the output of the speaker, and controlling the output of the display according to the received video data;

In a sixth aspect, the present application provides a sound processing method applied to a second controller in a display device, and the method includes:

When the audio data includes the AC4 format, the receiving first controller sends the audio data to the second controller through the first port, and receives the video data sent by the first controller through the second port, wherein: The audio data and the video data are data in the audio and video data received by the first controller;

When the audio data does not include the AC4 format, the receiving first controller sends the audio data and the video data to the second controller through the second port;

Controlling the output of the speaker according to the received audio data, and controlling the output of the display according to the received video data;

It can be seen from the above technical solutions that an embodiment of the application shows a sound processing method and a display device. The first chip of the technical solution shown in the embodiment of the application receives audio and video data, and the audio and video data includes audio data and video data; The audio data is in AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port; wherein, the second chip is configured as: The sound output of the speaker is controlled according to the audio data, and the audio and image output of the display is controlled according to the video data. The technical solutions shown in the embodiments of this application adopt different ports for the transmission of audio data in different formats between the first chip and the second chip, thereby ensuring that audio data in all formats can be transmitted between the first chip and the second chip. It can effectively solve the problem that AC4 format audio data cannot be transparently transmitted through HDMI channels.

Description of the drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some of the present application. Embodiments, for those of ordinary skill in the art, without creative work, other drawings can be obtained from these drawings.

Fig. 1 exemplarily shows a schematic diagram of an operation scenario between a display device and a control device according to an embodiment;

FIG. 2 exemplarily shows a block diagram of the hardware configuration of the control device 100 according to the embodiment;

FIG. 3 exemplarily shows a block diagram of the hardware configuration of the display device 200 according to the embodiment;

FIG. 4 exemplarily shows a block diagram of the hardware architecture of the display device 200 according to FIG. 3;

FIG. 5 exemplarily shows a schematic diagram of the functional configuration of the display device 200 according to the embodiment;

Fig. 6a exemplarily shows a schematic diagram of software configuration in the display device 200 according to the embodiment;

FIG. 6b exemplarily shows a configuration diagram of an application program in the display device 200 according to the embodiment;

FIG. 7 exemplarily shows a schematic diagram of the user interface in the display device 200 according to the embodiment;

Fig. 8 exemplarily shows a flow chart of a sound transmission method;

Fig. 9 exemplarily shows a flow chart of a sound transmission method;

Fig. 10 exemplarily shows a structural block diagram of a display device.

Detailed ways

In order to make the purpose, technical solutions, and advantages of the exemplary embodiments of the present application clearer, the technical solutions in the exemplary embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the exemplary embodiments of the present application. Obviously The described exemplary embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

For the convenience of users, various external device interfaces are usually provided on the display device to facilitate the connection of different peripheral devices or cables to realize corresponding functions. When a high-definition camera is connected to the interface of the display device, if the hardware system of the display device does not have the hardware interface of the high-pixel camera that receives the source code, then the data received by the camera cannot be presented to the display of the display device. On the screen.

Moreover, due to the hardware structure, the hardware system of traditional display devices only supports one hard decoding resource, and usually only supports 4K resolution video decoding. Therefore, when you want to realize the video chat while watching Internet TV, in order not to reduce The definition of the network video screen requires the use of hard decoding resources (usually the GPU in the hardware system) to decode the network video. In this case, the general-purpose processor (such as CPU) in the hardware system can only be used to decode the video. The video chat screen is processed by soft decoding.

Using soft decoding to process the video chat screen will greatly increase the data processing burden of the CPU. When the CPU's data processing burden is too heavy, the picture may freeze or become unsmooth. Further, subject to the data processing capability of the CPU, when the CPU soft decoding is used to process the video chat screen, it is usually impossible to achieve multi-channel video calls. When the user wants to simultaneously video chat with multiple other users in the same chat scene, it will There is a situation where access is blocked.

Some embodiments of the application disclose a dual hardware system architecture to implement multiple channels of video chat data (at least one local video).

The following first describes the concepts involved in the present application with reference to the drawings. It should be pointed out here that the following description of each concept is only to make the content of this application easier to understand, and does not mean to limit the protection scope of this application.

The term "module" used in the various embodiments of this application can refer to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or a combination of hardware or/and software code that can execute related to the component Function.

The term "remote control" used in the various embodiments of this application refers to a component of an electronic device (such as the display device disclosed in this application), which can generally control the electronic device wirelessly within a short distance. The component can generally be connected to an electronic device using infrared and/or radio frequency (RF) signals and/or Bluetooth, and can also include at least one of functional modules such as WiFi, wireless USB, Bluetooth, and motion sensors. For example, a handheld touch remote control uses a user interface in a touch screen to replace most of the physical built-in hard keys in general remote control devices.

The term "gesture" used in the embodiments of the present application refers to a user's behavior through a change of hand shape or hand movement to express expected ideas, actions, goals, and/or results.

The term "hardware system" used in the various embodiments of this application may include integrated circuit (IC), printed circuit board (Printed circuit board, PCB) and other mechanical, optical, electrical, and magnetic devices with computing, At least one of the physical components of control, storage, input and output functions.

Fig. 1 exemplarily shows a schematic diagram of an operation scenario between a display device and a control device according to an embodiment. As shown in FIG. 1, the user can operate the display device 200 by controlling the device 100.

The control device 100 may be a remote controller 100A, which can communicate with the display device 200 through at least one of infrared protocol communication, Bluetooth protocol communication, ZigBee protocol communication, or other short-distance communication methods for The display device 200 is controlled by wireless or other wired methods. The user can control the display device 200 by inputting user instructions through keys on the remote control, voice input, control panel input, etc. For example, the user can control the display device 200 by inputting corresponding control commands through the volume plus and minus keys, channel control keys, up/down/left/right movement keys, voice input keys, menu keys, and switch buttons on the remote control. Function.

The control device 100 can also be a smart device, such as a mobile terminal 100B, a tablet computer, a computer, a notebook computer, etc., which can be connected through a local area network (LAN, Wide Area Network), a wide area network (WAN, Wide Area Network), and a wireless local area network ((WLAN) , Wireless Local Area Network) or at least one of other networks communicates with the display device 200, and controls the display device 200 through an application program corresponding to the display device 200. For example, using an application program running on a smart device Control the display device 200. The application can provide users with various controls through an intuitive user interface (UI, User Interface) on the screen associated with the smart device.

For example, both the mobile terminal 100B and the display device 200 can be installed with software applications, so that the connection and communication between the two can be realized through a network communication protocol, thereby realizing one-to-one control operation and data communication. For example, the mobile terminal 100B can establish a control command protocol with the display device 200, synchronize the remote control keyboard to the mobile terminal 100B, and control the display device 200 by controlling the user interface of the mobile terminal 100B; or the mobile terminal 100B The audio and video content displayed on the screen is transmitted to the display device 200 to realize the synchronous display function.

As shown in FIG. 1, the display device 200 can also communicate with the server 300 through multiple communication methods. In various embodiments of the present application, the display device 200 may be allowed to communicate with the server 300 through at least one of a local area network, a wireless local area network, or other networks. The server 300 may provide various contents and interactions to the display device 200.

Illustratively, the display device 200 transmits and receives information, interacts with an Electronic Program Guide (EPG, Electronic Program Guide), receives software program updates, or accesses a remotely stored digital media library. The server 300 may be a group or multiple groups, and may be one or more types of servers. The server 300 provides other network service content such as video on demand and advertising services.

The display device 200 may be a liquid crystal display, an OLED (Organic Light Emitting Diode) display, a projection display device, or a smart TV. The specific display device type, size, resolution, etc. are not limited, and those skilled in the art can understand that the display device 200 can make some changes in performance and configuration as required.

In addition to providing the broadcast receiving TV function, the display device 200 may additionally provide a smart network TV function that provides a computer support function. Examples include Internet TV, Smart TV, Internet Protocol TV (IPTV) and so on.

As shown in Figure 1, the display device may be connected or provided with a camera, which is used to present the picture captured by the camera on the display interface of the display device or other display devices to realize interactive chats between users. Specifically, the picture captured by the camera can be displayed on the display device in full screen, half screen, or in any optional area.

As an optional connection method, the camera is connected to the monitor rear shell through a connecting plate, and is fixedly installed on the upper middle of the monitor rear shell. As an installable method, it can be fixedly installed at any position of the monitor rear shell to ensure its It is sufficient that the image capture area is not blocked by the rear shell, for example, the image capture area and the display device have the same orientation.

As another optional connection method, the camera can be connected to the display back shell through a connecting plate or other conceivable connectors. A lifting motor is installed on the connector. When the user wants to use the camera or there is When the application wants to use the camera, it is raised above the display. When the camera is not needed, it can be embedded behind the back shell to protect the camera from damage.

As an embodiment, the camera used in this application may have 16 million pixels to achieve the purpose of ultra-high-definition display. In actual use, a camera with higher or lower than 16 million pixels can also be used.

When a camera is installed on the display device, the content displayed in different application scenarios of the display device can be merged in many different ways, so as to achieve functions that cannot be achieved by traditional display devices.

Exemplarily, the user can video chat with at least one other user while watching a video program. The presentation of the video program can be used as the background picture, and the video chat window is displayed on the background picture. Visually, you can call this function "watch and chat".

Optionally, in the scenario of "watching while chatting", while watching live video or online video, at least one video chat is performed across terminals.

In some embodiments, the user can video chat with at least one other user while entering the education application for learning. For example, students can realize remote interaction with teachers while learning content in educational applications. Visually, you can call this function "learning and chatting".

In some embodiments, when a user is playing a card game, a video chat is conducted with players entering the game. For example, when a player enters a game application to participate in a game, it can realize remote interaction with other players. Visually, you can call this function "watch and play".

Optionally, the game scene is integrated with the video picture, and the portrait in the video picture is cut out and displayed on the game picture to improve user experience.

Optionally, in somatosensory games (such as ball games, boxing games, running games, dancing games, etc.), human body postures and movements are acquired through the camera, body detection and tracking, and the detection of human bone key points data, and then the game Animations are integrated to realize games such as sports and dance scenes.

In some embodiments, the user can interact with at least one other user in video and voice in the K song application. Visually, you can call this function "watch and sing". In some embodiments, when at least one user enters the application in a chat scene, multiple users can jointly complete the recording of a song.

In some embodiments, the user can turn on the camera locally to obtain pictures and videos. In an image, this function can be called "mirror".

In other examples, more functions can be added or the aforementioned functions can be reduced. This application does not specifically limit the function of the display device.

Fig. 2 exemplarily shows a configuration block diagram of the control device 100 according to an exemplary embodiment. As shown in Fig. 3, the control device 100 includes a controller 110, a communicator 130, a user input/output interface 140, a memory 190, and a power supply 180.

The control device 100 is configured to control the display device 200, and can receive user input operation instructions, and convert the operation instructions into instructions that can be recognized and responded to by the display device 200, and serve as an interactive intermediary between the user and the display device 200 effect. For example, the user operates the channel addition and subtraction keys on the control device 100, and the display device 200 responds to the channel addition and subtraction operations.

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

In some embodiments, as shown in FIG. 1, the mobile terminal 100B or other smart electronic devices can perform similar functions to the control device 100 after installing an application for controlling the display device 200. For example, the user can install various function keys or virtual buttons of the graphical user interface that can be provided on the mobile terminal 100B or other smart electronic devices by installing applications to realize the function of the physical keys of the control device 100.

The controller 110 includes at least one of a processor 112, a RAM 113 and a ROM 114, a communication interface, and a communication bus. The controller 110 is used to control the operation and operation of the control device 100, as well as the communication and cooperation between internal components, and external and internal data processing functions.

The communicator 130 realizes communication of control signals and data signals with the display device 200 under the control of the controller 110. For example, the received user input signal is sent to the display device 200. The communicator 130 may include at least one of communication modules such as a WIFI module 131, a Bluetooth module 132, and an NFC module 133.

The user input/output interface 140, wherein the input interface includes at least one of input interfaces such as a microphone 141, a touch panel 142, a sensor 143, and a button 144. For example, the user can implement the user instruction input function through voice, touch, gesture, pressing and other actions. The input interface converts the received analog signal into a digital signal and the digital signal into a corresponding instruction signal, which is sent to the display device 200.

The output interface includes an interface for sending the received user instruction to the display device 200. In some embodiments, it may be an infrared interface or a radio frequency interface. For example, in the case of an infrared signal interface, the user input instruction needs to be converted into an infrared control signal according to the infrared control protocol, and sent to the display device 200 via the infrared sending module. For another example, in the case of a radio frequency signal interface, a user input instruction needs to be converted into a digital signal, which is then modulated according to the radio frequency control signal modulation protocol, and then sent to the display device 200 by the radio frequency transmitting terminal.

In some embodiments, the control device 100 includes at least one of a communicator 130 and an output interface. The control device 100 is configured with a communicator 130, such as: WIFI, Bluetooth, NFC and other modules, which can encode user input instructions through the WIFI protocol, or Bluetooth protocol, or NFC protocol, and send to the display device 200.

The memory 190 is used to store various operating programs, data and applications for driving and controlling the control device 100 under the control of the controller 110. The memory 190 can store various control signal instructions input by the user.

The power supply 180 is used to provide operating power support for each element of the control device 100 under the control of the controller 110. Can battery and related control circuit.

FIG. 3 exemplarily shows a hardware configuration block diagram of a hardware system in the display device 200 according to an exemplary embodiment.

When the dual hardware system architecture is adopted, the mechanism relationship of the hardware system can be shown in Figure 3. For ease of description, one hardware system in the dual hardware system architecture is referred to as the first hardware system or A system, A chip, and the other hardware system is referred to as the second hardware system or N system, N chip. The A chip includes the controller and various interfaces of the A chip, and the N chip includes the controller and various interfaces of the N chip. An independent operating system may be installed in the A chip and the N chip, so that there are two independent but interrelated subsystems in the display device 200.

As shown in Figure 3, the A chip and the N chip can realize connection, communication and power supply through multiple different types of interfaces. The interface type of the interface between the A chip and the N chip may include at least one of general-purpose input/output (GPIO), USB interface, HDMI interface, UART interface, and the like. One or more of these interfaces can be used between the A chip and the N chip for communication or power transmission. For example, as shown in Figure 3, in the dual hardware system architecture, the N chip can be powered by an external power source, and the A chip can be powered by the N chip instead of the external power source.

In addition to the interface for connecting with the N chip, the A chip may also include interfaces for connecting other devices or components, such as the MIPI interface for connecting to a camera (Camera) shown in FIG. 3, a Bluetooth interface, etc.

Similarly, in addition to the interface for connecting with the N chip, the N chip can also include a VBY interface for connecting to the display screen TCON (Timer Control Register), which is used to connect a power amplifier (Amplifier, AMP) and a speaker (Speaker). ) I2S interface; and at least one of IR/Key interface, USB interface, Wifi interface, Bluetooth interface, HDMI interface, Tuner interface, etc.

The dual hardware system architecture of the present application will be further described below in conjunction with FIG. 4. It should be noted that FIG. 4 is only an exemplary description of the dual hardware system architecture of the present application, and does not represent a limitation to the present application. In practical applications, both hardware systems can contain more or less hardware or interfaces as required.

FIG. 4 exemplarily shows a hardware architecture block diagram of the display device 200 according to FIG. 3. As shown in FIG. 4, the hardware system of the display device 200 may include an A chip and an N chip, and modules connected to the A chip or the N chip through various interfaces.

The N chip may include a tuner and demodulator 220, a communicator 230, an external device interface 250, a controller 210, a memory 290, a user input interface, a video processor 260-1, an audio processor 260-2, a display 280, and an audio output interface 272. At least one of the power supplies. In other embodiments, the N chip may also include more or fewer modules.

Among them, the tuner and demodulator 220 is used to perform modulation and demodulation processing such as amplifying, mixing, and resonating broadcast television signals received through wired or wireless methods, thereby demodulating the user’s information from multiple wireless or cable broadcast television signals. Select the audio and video signals carried in the frequency of the TV channel, and additional information (such as EPG data signals). According to different television signal broadcasting systems, the signal path of the tuner and demodulator 220 can be varied, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting or Internet broadcasting; and according to different modulation types, the signal adjustment method can be digitally modulated The method may also be an analog modulation method; and according to different types of received television signals, the tuner demodulator 220 may demodulate analog signals and/or digital signals.

The tuner and demodulator 220 is also used to respond to the TV channel frequency selected by the user and the TV signal carried by the frequency according to the user's selection and control by the controller 210.

In some other exemplary embodiments, the tuner demodulator 220 may also be in an external device, such as an external set-top box. In this way, the set-top box outputs TV audio and video signals through modulation and demodulation, and inputs them to the display device 200 through the external device interface 250.

The communicator 230 is a component for communicating with external devices or external servers according to various communication protocol types. For example, the communicator 230 may include a WIFI module 231, a Bluetooth communication protocol module 232, a wired Ethernet communication protocol module 233, and an infrared communication protocol module and other network communication protocol modules or near field communication protocol modules.

The display device 200 may establish a control signal and a data signal connection with an external control device or content providing device through the communicator 230. For example, the communicator may receive the control signal of the remote controller 100 according to the control of the controller.

The external device interface 250 is a component that provides data transmission between the N chip controller 210 and the A chip and other external devices. The external device interface can be connected to external devices such as set-top boxes, game devices, notebook computers, etc. in a wired/wireless manner, and can receive external devices such as video signals (such as moving images), audio signals (such as music), and additional information (such as EPG). ) And other data.

Among them, the external device interface 250 may include: a high-definition multimedia interface (HDMI) terminal 251, a composite video blanking synchronization (CVBS) terminal 252, an analog or digital component terminal 253, a universal serial bus (USB) terminal 254, red, green, and blue ( RGB) terminal (not shown in the figure) and any one or more. This application does not limit the number and types of external device interfaces.

The controller 210 controls the work of the display device 200 and responds to user operations by running various software control programs (such as an operating system and/or various application programs) stored on the memory 290.

As shown in FIG. 4, the controller 210 includes at least one of a read-only memory RAM 213, a random access memory ROM 214, a graphics processor 216, a CPU processor 212, a communication interface 218, and a communication bus. Among them, RAM213 and ROM214, graphics processor 216, CPU processor 212, and communication interface 218 are connected by a bus.

ROM213, used to store various system startup instructions. For example, when the power-on signal is received, the power of the display device 200 starts to start, and the CPU processor 212 runs the system start-up instruction in the ROM, and copies the temporary data of the operating system stored in the memory 290 to the RAM 214 to start the operating system. After the operating system is started, the CPU processor 212 copies the temporary data of the various application programs in the memory 290 to the RAM 214, and then starts to run and start the various application programs.

The graphics processor 216 is used to generate various graphics objects, such as icons, operation menus, and user input instructions to display graphics. Including an arithmetic unit, which performs operations by receiving various interactive commands input by the user, and displays various objects according to display attributes. As well as including a renderer, various objects obtained based on the arithmetic unit are generated, and the rendering result is displayed on the display 280.

The CPU processor 212 is configured to execute operating system and application program instructions stored in the memory 290. And according to receiving various interactive instructions input from the outside, to execute various applications, data and content, so as to finally display and play various audio and video content.

In some exemplary embodiments, the CPU processor 212 may include multiple processors. The multiple processors may include one main processor and multiple or one sub-processors. The main processor is used to perform some operations of the display device 200 in the pre-power-on mode, and/or to display images in the normal mode. Multiple or one sub-processor, used to perform an operation in the standby mode and other states.

The communication interface may include the first interface 218-1 to the nth interface 218-n. These interfaces may be network interfaces connected to external devices via a network.

The controller 210 may control the overall operation of the display device 200. For example, in response to receiving a user command for selecting a UI object to be displayed on the display 280, the controller 210 may perform an operation related to the object selected by the user command.

Wherein, the object may be any one of the selectable objects, such as a hyperlink or an icon. Operations related to the selected object, for example: display operations connected to hyperlink pages, documents, images, etc., or perform operations corresponding to the icon. The user command for selecting the UI object may be a command input through various input devices (for example, a mouse, a keyboard, a touch pad, etc.) connected to the display device 200 or a voice command corresponding to the voice spoken by the user.

The memory 290 includes storing various software modules for driving and controlling the display device 200. For example, various software modules stored in the memory 290 include: at least one of a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.

Among them, the basic module is the underlying software module used for signal communication between various hardware in the display device 200 and sending processing and control signals to the upper module. The detection module is a management module used to collect various information from various sensors or user input interfaces, and perform digital-to-analog conversion and analysis management.

For example: the voice recognition module includes a voice analysis module and a voice command database module. The display control module is a module for controlling the display 280 to display image content, and can be used to play information such as multimedia image content and UI interfaces. The communication module is a module used for control and data communication with external devices. The browser module is a module used to perform data communication between browsing servers. The service module is a module used to provide various services and various applications.

At the same time, the memory 290 is also used to store and receive external data and user data, images of various items in various user interfaces, and visual effect diagrams of focus objects.

The user input interface is used to send a user's input signal to the controller 210, or to transmit a signal output from the controller to the user. Exemplarily, the control device (such as a mobile terminal or a remote control) may send input signals input by the user, such as a power switch signal, a channel selection signal, and a volume adjustment signal, to the user input interface, and then the user input interface forwards the input signal to the controller; Alternatively, the control device may receive output signals such as audio, video, or data output from the user input interface processed by the controller, and display the received output signal or output the received output signal as audio or vibration.

In some embodiments, the user may input a user command through a graphical user interface (GUI) displayed on the display 280, and the user input interface receives the user input command through the graphical user interface (GUI). Alternatively, the user can input a user command by inputting a specific sound or gesture, and the user input interface recognizes the sound or gesture through the sensor to receive the user input command.

The video processor 260-1 is used to receive video signals, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to the standard codec protocol of the input signal. The video signal displayed or played directly on the display 280.

Illustratively, the video processor 260-1 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like.

Among them, the demultiplexing module is used to demultiplex the input audio and video data stream. For example, if MPEG-2 is input, the demultiplexing module will demultiplex into video signals and audio signals.

The video decoding module is used to process the demultiplexed video signal, including decoding and scaling.

An image synthesis module, such as an image synthesizer, is used to superimpose and mix the GUI signal generated by the graphics generator with the zoomed video image according to user input or itself to generate an image signal for display.

Frame rate conversion module, used to convert the frame rate of the input video, such as converting the frame rate of the input 24Hz, 25Hz, 30Hz, 60Hz video to the frame rate of 60Hz, 120Hz or 240Hz, where the input frame rate can be compared with the source The video stream is related, and the output frame rate can be related to the update rate of the display. The input has a usual format, such as frame insertion.

The display formatting module is used to change the signal output by the frame rate conversion module into a signal that conforms to a display format such as a display, such as format conversion of the signal output by the frame rate conversion module to output RGB data signals.

The display 280 is used to receive the image signal input from the video processor 260-1, display video content and images, and a menu control interface. The display 280 includes a display component for presenting a picture and a driving component for driving image display. The displayed video content can be from the video in the broadcast signal received by the tuner and demodulator 220, or from the video content input by the communicator or the interface of an external device. The display 220 simultaneously displays a user manipulation interface UI generated in the display device 200 and used to control the display device 200.

And, depending on the type of the display 280, it also includes a driving component for driving the display. Alternatively, if the display 280 is a projection display, it may also include a projection device and a projection screen.

The audio processor 260-2 is used to receive audio signals, and perform decompression and decoding according to the standard codec protocol of the input signal, as well as audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing, and the result can be in the speaker 272 The audio signal to be played.

The audio output interface 270 is used to receive the audio signal output by the audio processor 260-2 under the control of the controller 210. The audio output interface may include a speaker 272 or output to an external audio output terminal 274 of a generator of an external device, such as : External audio terminal or headphone output terminal, etc.

In some other exemplary embodiments, the video processor 260-1 may include one or more chips. The audio processor 260-2 may also include one or more chips.

And, in some other exemplary embodiments, the video processor 260-1 and the audio processor 260-2 may be separate chips, or they may be integrated with the controller 210 in one or more chips.

The power supply is used to provide power supply support for the display device 200 with power input from an external power supply under the control of the controller 210. The power supply may include a built-in power supply circuit installed inside the display device 200, or may be a power supply installed outside the display device 200, such as a power interface that provides an external power supply in the display device 200.

Similar to the N chip, as shown in FIG. 4, the A chip may include a controller 310, a communicator 330, a detector 340, and a memory 390. In some embodiments, it may also include a user input interface, a video processor, an audio processor, a display, and an audio output interface. In some embodiments, there may also be a power supply that independently powers the A chip.

The communicator 330 is a component for communicating with external devices or external servers according to various communication protocol types. For example, the communicator 330 may include a WIFI module 331, a Bluetooth communication protocol module 332, a wired Ethernet communication protocol module 333, and an infrared communication protocol module and other network communication protocol modules or near field communication protocol modules.

The communicator 330 of the A chip and the communicator 230 of the N chip also interact with each other. For example, the WiFi module 231 of the N chip is used to connect to an external network and generate network communication with an external server and the like. The WiFi module 331 of the A chip is used to connect to the WiFi module 231 of the N chip without direct connection with the external network or the like. Therefore, for the user, a display device as in the above embodiment can externally display a WiFi account.

The detector 340 is a component used by the chip of the display device A to collect signals from the external environment or interact with the outside. The detector 340 may include a light receiver 342, a sensor used to collect the intensity of ambient light, which can adaptively display parameter changes by collecting ambient light, etc.; it may also include an image collector 341, such as a camera, a camera, etc., which can be used to collect external Environmental scenes, as well as gestures used to collect user attributes or interact with users, can adaptively change display parameters, and can also recognize user gestures to achieve the function of interaction with users.

The external device interface 350 provides components for data transmission between the controller 310 and the N chip or other external devices. The external device interface can be connected to external devices such as set-top boxes, game devices, notebook computers, etc., in a wired/wireless manner.

The controller 310 controls the work of the display device 200 and responds to user operations by running various software control programs (such as installed third-party applications, etc.) stored on the memory 390 and interacting with the N chip.

As shown in FIG. 4, the controller 310 includes at least one of a read-only memory ROM313, a random access memory RAM314, a graphics processor 316, a CPU processor 312, a communication interface 318, and a communication bus. Among them, the ROM 313 and the RAM 314, the graphics processor 316, the CPU processor 312, and the communication interface 318 are connected by a bus.

ROM313, used to store various system startup instructions. The CPU processor 312 runs the system startup instruction in the ROM, and copies the temporary data of the operating system stored in the memory 390 to the RAM 314 to start the operating system. After the operating system is started, the CPU processor 312 copies the temporary data of the various application programs in the memory 390 to the RAM 314, and then starts to run and start the various application programs.

The CPU processor 312 is used to execute the operating system and application instructions stored in the memory 390, communicate with the N chip, transmit and interact with signals, data, instructions, etc., and execute various interactive instructions received from external inputs Various applications, data and content, in order to finally display and play various audio and video content.

The communication interface may include the first interface 318-1 to the nth interface 318-n. These interfaces may be network interfaces connected to external devices via a network, or network interfaces connected to the N chip via a network.

The controller 310 may control the overall operation of the display device 200. For example, in response to receiving a user command for selecting a UI object to be displayed on the display 280, the controller 210 may perform an operation related to the object selected by the user command.

The graphics processor 316 is used to generate various graphics objects, such as icons, operation menus, and user input instructions to display graphics. Including an arithmetic unit, which performs operations by receiving various interactive commands input by the user, and displays various objects according to display attributes. As well as including a renderer, various objects obtained based on the arithmetic unit are generated, and the rendering result is displayed on the display 280.

Both the graphics processor 316 of the A chip and the graphics processor 216 of the N chip can generate various graphics objects. Differentily, if application 1 is installed on the A chip and application 2 is installed on the N chip, when the user is in the interface of the application 1 and the user inputs instructions in the application 1, the A chip graphics processor 316 generates a graphic object. When the user is on the interface of Application 2 and performs the user-input instructions in Application 2, the graphics processor 216 of the N chip generates the graphics object.

Fig. 5 exemplarily shows a schematic diagram of a functional configuration of a display device according to an exemplary embodiment.

In some embodiments, as shown in FIG. 5, the memory 390 of the A chip and the memory 290 of the N chip are used to store operating systems, applications, content, and user data, respectively. The controller 310 of the A chip and the memory 290 of the N chip Under the control of the controller 210, the system operation of driving the display device 200 and various operations of the user are performed. The memory 390 of the A chip and the memory 290 of the N chip may include volatile and/or nonvolatile memory.

For the N chip, the memory 290 is specifically used to store the operating program that drives the controller 210 in the display device 200, and store various application programs built in the display device 200, and various application programs downloaded by the user from an external device, and application programs. Various related graphical user interfaces, various objects related to graphical user interfaces, user data information, and various internal data supporting applications. The memory 290 is used to store system software such as an operating system (OS) kernel, middleware, and applications, and to store input video data and audio data, and other user data.

The memory 290 is specifically used to store driver programs and related data such as the video processor 260-1 and the audio processor 260-2, the display 280, the communication interface 230, the tuner and demodulator 220, and the input/output interface.

In some embodiments, the memory 290 may store software and/or programs. The software programs used to represent an operating system (OS) include, for example, a kernel, middleware, application programming interface (API), and/or application programs. Exemplarily, the kernel may control or manage system resources, or functions implemented by other programs (such as the middleware, API, or application program), and the kernel may provide interfaces to allow middleware and APIs, or applications to access the controller , In order to achieve control or management of system resources.

For example, the memory 290 includes a broadcast receiving module 2901, a channel control module 2902, a volume control module 2903, an image control module 2904, a display control module 2905, an audio control module 2906, an external command recognition module 2907, a communication control module 2908, and an optical receiver At least one of a module 2909, a power control module 2910, an operating system 2911, and other application programs 2912, a browser module, and so on. The controller 210 executes various software programs in the memory 290, such as: broadcast and television signal reception and demodulation function, TV channel selection control function, volume selection control function, image control function, display control function, audio control function, external command Various functions such as identification function, communication control function, optical signal receiving function, power control function, software control platform supporting various functions, and browser function.

The memory 390 includes storing various software modules for driving and controlling the display device 200. For example, various software modules stored in the memory 390 include: at least one of a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules. Since the functions of the memory 390 and the memory 290 are relatively similar, please refer to the memory 290 for related parts, and will not be repeated here.

For example, the memory 390 includes an image control module 3904, an audio control module 2906, an external command recognition module 3907, a communication control module 3908, an optical receiving module 3909, an operating system 3911, and other application programs 3912, a browser module, and so on. The controller 210 executes various software programs in the memory 290, such as: image control function, display control function, audio control function, external command recognition function, communication control function, light signal receiving function, power control function, support for various Functional software control platform, and various functions such as browser functions.

Differentily, the external command recognition module 2907 of the N chip and the external command recognition module 3907 of the A chip can recognize different commands.

Exemplarily, because the image receiving device such as the camera is connected to the A chip, the external command recognition module 3907 of the A chip may include a graphic recognition module 2907-1. The graphic recognition module 3907-1 stores a graphic database, and the camera receives external commands. In order to control the display device, the corresponding relationship is made with the instructions in the graphics database. Since the voice receiving device and the remote controller are connected to the N chip, the external command recognition module 2907 of the N chip may include a voice recognition module 2907-2. The graphics recognition module 2907-2 stores a voice database, and the voice receiving device, etc. The external voice commands or time correspond to the commands in the voice database to control the display device. Similarly, a control device 100 such as a remote controller is connected to the N chip, and the key command recognition module interacts with the control device 100.

Fig. 6a exemplarily shows a configuration block diagram of the software system in the display device 200 according to an exemplary embodiment.

For the N chip, as shown in Figure 6a, the operating system 2911 includes operating software for processing various basic system services and for implementing hardware-related tasks, acting as a medium for data processing between application programs and hardware components.

In some embodiments, part of the operating system kernel may include a series of software to manage the hardware resources of the display device and provide services for other programs or software codes.

In some other embodiments, part of the operating system kernel may include one or more device drivers, and the device drivers may be a set of software codes in the operating system to help operate or control devices or hardware associated with the display device. The drive may contain code to manipulate video, audio, and/or other multimedia components. Examples include displays, cameras, Flash, WiFi, and audio drivers.

Among them, the accessibility module 2911-1 is used to modify or access the application program, so as to realize the accessibility of the application program and the operability of its display content.

The communication module 2911-2 is used to connect to other peripherals via related communication interfaces and communication networks.

The user interface module 2911-3 is used to provide objects that display the user interface for access by various applications, and can realize user operability.

The control application 2911-4 is used to control process management, including runtime applications.

The event transmission system 2914 can be implemented in the operating system 2911 or in the application 2912. In some embodiments, it is implemented in the operating system 2911 on the one hand, and implemented in the application program 2912 at the same time, for monitoring various user input events, and responding to the recognition results of various events or sub-events according to various events. And implement one or more sets of pre-defined operation procedures.

Among them, the event monitoring module 2914-1 is used to monitor input events or sub-events of the user input interface.

The event recognition module 2914-1 is used to input the definitions of various events to various user input interfaces, recognize various events or sub-events, and transmit them to the processing to execute the corresponding one or more groups of processing programs .

Among them, the event or sub-event refers to the input detected by one or more sensors in the display device 200 and the input of an external control device (such as the control device 100). Such as: various sub-events of voice input, gesture input sub-events of gesture recognition, and sub-events of remote control button command input of control devices. For example, one or more sub-events in the remote control include multiple forms, including but not limited to one or a combination of pressing up/down/left/right/, confirming keys, and pressing keys. And the operations of non-physical buttons, such as moving, pressing, and releasing.

The interface layout management module 2913, which directly or indirectly receives various user input events or sub-events monitored by the event transmission system 2914, is used to update the layout of the user interface, including but not limited to the position of each control or sub-control in the interface, and the container The size, position, level, etc. of the interface are related to various execution operations.

Since the functions of the operating system 3911 of the A chip and the operating system 2911 of the N chip are relatively similar, please refer to the operating system 2911 for related details, and will not be repeated here.

In some embodiments, the first chip may be used as the first controller, and the second chip may be used as the second controller. In some embodiments, there may also be different modules between the two.

As shown in FIG. 6b for the application control in the interactive interface, the application layer of the display device includes various applications that can be executed on the display device 200.

The application layer 2912 of the N chip may include, but is not limited to, one or more applications, such as video-on-demand applications, application centers, and game applications. The application layer 3912 of the A chip may include, but is not limited to, one or more applications, such as a live TV application, a media center application, and so on. It should be noted that the application programs contained on the A chip and the N chip are determined according to the operating system and other designs. This application does not need to specifically limit and divide the application programs contained on the A chip and the N chip.

Live TV applications can provide live TV through different sources. For example, a live TV application may use input from cable TV, wireless broadcasting, satellite services, or other types of live TV services to provide TV signals. And, the live TV application can display the video of the live TV signal on the display device 200.

Video-on-demand applications can provide videos from different storage sources. Unlike live TV applications, VOD provides video display from certain storage sources. For example, the video on demand can come from the server side of cloud storage, and from the local hard disk storage that contains the stored video programs.

Media center applications can provide various multimedia content playback applications. For example, the media center can provide services that are different from live TV or video on demand, and users can access various images or audio through the media center application.

Application center, can provide storage of various applications. The application program may be a game, an application program, or some other application program that is related to a computer system or other device but can be run on a display device. The application center can obtain these applications from different sources, store them in the local storage, and then run on the display device 200.

FIG. 7 exemplarily shows a schematic diagram of a user interface in the display device 200 according to an exemplary embodiment. As shown in FIG. 7, the user interface includes multiple view display areas, for example, a first view display area 201 and a play screen 202, where the play screen includes layout of one or more different items. And the user interface also includes a selector indicating that the item is selected, and the position of the selector can be moved through user input to change the selection of different items.

It should be noted that multiple view display areas can present display screens of different levels. For example, the display area of the first view may present the content of the video chat item, and the display area of the second view may present the content of the application layer item (eg, webpage video, VOD display, application screen, etc.).

In some embodiments, the content of the display area of the second view includes content displayed on the video layer and part of the content displayed on the floating layer, and the content of the display area of the first view includes content displayed on the floating layer. The floating layers used in the first view display area and the second view display area are different floating layers.

In some embodiments, the presentation of different view display areas has different priorities, and the display priorities of the view display areas are different between view display areas with different priorities. For example, the priority of the system layer (such as the video layer) is higher than that of the application layer. When the user uses the acquisition selector and screen switching in the application layer, the screen display in the view display area of the system layer is not blocked; and, according to the user When the size and position of the view display area of the application layer change, the size and position of the view display area of the system layer are not affected.

In some embodiments, such as picture-in-picture, two different display windows can be drawn in the same layer to achieve the same level of display. At this time, the selector can be in the first view display area and the second view Switch between display areas (ie switch between two display windows). At this time, in some embodiments, when the size and position of the display area of the first view change, the size and position of the display area of the second view may change accordingly.

In some embodiments, for a dual-chip smart TV 200, independent operating systems may be installed in the A chip and the N chip, so that there are two independent but related sub-systems in the display device 200. system. For example, both the A chip and the N chip can be independently installed with Android and various APPs, so that each chip can realize a certain function, and the A chip and the N chip can cooperate to realize a certain function.

Generally, a dual hardware display device includes two chips, which are A chip (also called the first chip in the embodiment of this application) and N chip (also called the second chip in the embodiment of this application) . The first chip is used to receive audio and video data. The audio and video data includes audio data and video signals. The A chip needs to transmit the audio and video data to the N chip, and the N chip transmits the audio data to the speaker for playback.

Due to the diversity of the source formats of the network audio data, the A chip and the N chip are connected through the HDMI port. For some special format audio data such as AC4 format audio data, the HDMI port cannot be passed.

In some embodiments, the audio data in the AC4 format means "Dolby AC-4 is a brand new audio format in the Dolby Audio ^™ technology series, that is, the Dolby AC-4 audio format.

In some embodiments, the AC-4 format can be replaced by an audio format that is not supported by the equivalent HDMI port.

In some embodiments, the HDMI port may be used as the first port, and audio data may be equivalent to audio data not supported by the first port.

In order to solve the above-mentioned technical problems, the embodiments of this application show a dual-hardware sound transmission method. Specifically, please refer to FIG. 8. The method shown in the embodiment of the present application includes the following steps:

S101: The first chip receives audio and video data, where the audio and video data includes audio data and video data;

S102 Determine the format of the audio data

S103 In response to the audio data being in AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port; wherein the second chip is It is configured to control the sound output of the speaker according to the audio data, and control the audio and video output of the display according to the video data.

In response to the audio data being in a non-AC4 format, the first chip that executes S104 sends the audio data and the video data to the second chip through the second port

In the technical solution shown in the embodiment of the present application, the first chip and the second chip are connected through a first port and a second port; the first port is a network port, and the network port is used to install a third party on the first chip The AC4 format audio and video data and video data received by the application are sent to the second chip.

The second port, the second port may be a USB port (Universal Serial Bus) or an HDMI port (High Definition MuItimedia Interface, high-definition multimedia port). The first chip and the second port send audio and video to the second chip. At this time, the audio data in the audio and video data is audio data in a non-AC4 format. Among them, the HDMI port mainly sends audio and video data and video data in non-AC4 format received by a third-party application installed on the first chip to the second chip. The audio and video signals also include image information collected by the camera. The signal received by the first chip is transmitted to the second chip through the HDMI port. It is worth noting that the HDMI port is not open to users in the technical solution shown in the embodiment of the present application. The main function of USB is to transmit the image data of the camera to the second chip via USB.

In the solution shown in the embodiment of the present application, in response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port. Since audio data and video data are transmitted by two ports, there will be a problem that audio data and video data are not synchronized in some cases. In the technical solution implemented in this application, the second chip is used to make corresponding adjustments to the audio data or video data, so as to achieve the purpose of synchronous playback of audio data and video data. For the specific adjustment process of the second chip, refer to FIG. 9, and the method further includes:

The connection channel between the first chip and the second chip includes a first channel passing through the communication port;

S105 The connection channel between the first chip and the second chip includes a first channel passing through the communication port; the first chip sends audio corresponding to the audio data to the second chip through the first channel Code stream.

In a feasible embodiment, the first chip receives audio and video data through an installed third-party APP. The first chip first decodes and streams the received audio and video data to obtain audio data and video data. In response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the network port, and sends the video data to the second chip through the second port. Otherwise, the first chip sends the audio data and the video data to the second chip through the second port.

In a feasible embodiment, the first chip further includes a communication port different from the port for inputting audio and video, and the connection channel between the first chip and the second chip includes a communication port passing through the communication port. The first channel; the first chip sends an audio code stream corresponding to the audio data to the second chip through the first channel.

The communication port may be a UART (Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver/Transmitter), and the corresponding first channel is a communication channel connected by a UART port, and the first chip passes through the first channel Sending an audio code stream corresponding to the audio data to the second chip.

The second chip activates a corresponding audio decoder to decode the audio data according to the audio code stream to obtain decoded audio data, and the decoded audio data is used to be output to the speaker by the second chip; The corresponding video decoder is activated to decode the video data to obtain decoded video data, and the decoded video data is used to be output to the display screen by the second chip.

In some embodiments, the corresponding audio decoder can be located in the second chip or independent of the second chip, and the corresponding video decoder can be located in the second chip or independent of the second chip. It can communicate and complete the corresponding data decoding function.

S106 The second chip starts the corresponding audio decoder to decode the audio data to obtain the decoded audio data according to the audio code stream, and the second chip starts the video decoder to decode the audio data to obtain the decoded video data.

The decoded audio data is used to be output to the speaker by the second chip; the corresponding video decoder is activated to decode the video data to obtain decoded video data, and the decoded video data is used to be second The chip is output to the display screen.

S107 The second chip reads the audio time stamp of the decoded audio data and the video time stamp of the video data;

S108 The second chip compares the audio timestamp and the video timestamp to generate a delay difference;

S109 The second chip processes the output of the decoded audio data or the decoded video data based on the delay difference.

Specifically, (1) In response to the audio time lagging behind the video and audio timestamp, the second chip turns off at least a part of the processing of the sound processing module to increase the output speed of the decoded audio data .

In a feasible embodiment, in response to the audio time lagging behind the video and audio timestamp, the second chip may turn off the audio delay unit. So that the sound processing module does not perform sound delay on the audio data received from the first chip, so as to increase the output speed of the decoded audio data, so as to achieve the effect of "audio-picture synchronization".

In a feasible embodiment, in response to the audio time lagging behind the video and audio timestamp, the second chip may also turn off the audio effect processing unit. So that the sound processing module does not perform sound effect processing on the audio data received from the first chip, so as to increase the output speed of the decoded audio data, so as to achieve the effect of "audio-visual synchronization".

The audio delay unit is an audiodelay (audio delay) parameter adjustment unit. The specific process of turning off the audio delay unit is: in response to the audio time lagging behind the video and audio timestamp, the sound processing module adjusts the delay parameter corresponding to the audiodelay to zero.

In a feasible embodiment, in response to the audio time lagging behind the video and audio timestamp, the second chip may also turn off the audio delay unit and the audio effect processing unit. So that the sound processing module does not perform sound delay and sound effect processing on the audio data received from the first chip, so as to improve the output speed of the decoded audio data, so as to achieve the effect of "audio-picture synchronization".

(2) In response to the audio time lagging behind the video and audio timestamp, the second chip adjusts the delay parameter corresponding to the audio delay unit to zero, so that the audio delay unit can Audio data is not delayed.

In response to the audio time lagging behind the video and audio timestamp, the audio delay unit adjusts the delay parameter corresponding to audiodelay to zero. So that the sound processing module does not perform sound delay on the audio data received from the first chip, so as to increase the output speed of the decoded audio data, so as to achieve the effect of "audio-picture synchronization".

(3) In response to the video time lagging behind the audio timestamp, the second chip increases the delay parameter corresponding to the audio delay unit, so that the audio delay unit can perform the decoding on the decoded audio data. Delay processing is performed to delay the output speed of the decoded audio data to achieve the effect of "audio-visual synchronization".

(4) In response to the audio time lagging behind the video and audio timestamp, the second core activates the video processing unit to perform frame insertion processing on the decoded video data.

In response to the audio time lagging behind the video and audio timestamp, the video processing unit sequentially determines the current frame of the video to be inserted, the previous frame of the current frame, and the next frame of the current frame; The current frame, the previous frame of the current frame, and the next frame of the current frame are input into the pre-generated video interpolation frame model, where the video interpolation frame model consists of the current frame of the training set, the previous frame of the current frame, and the current frame The next frame is generated by training a preset convolutional neural network model; the video frame interpolation model performs frame interpolation on the to-be-inserted frame video to obtain the frame-inserted video. To delay the output speed of the decoded video data to achieve the effect of "audio-visual synchronization".

In the technical solution shown in the embodiment of the application, the first chip receives audio and video data, and the audio and video data includes audio data and video data; in response to the audio data is in AC4 format, the first chip sends the audio data through the first port To the second chip, the video data is sent to the second chip through the second port; wherein, the second chip is configured to control the sound output of the speaker according to the audio data, and control the video data according to the video data. The audio and video output of the monitor.

In some embodiments, since the video data transmitted via HDMI needs to be transmitted in accordance with the format specified by HDMI, the first chip needs to decode the received bit stream first, and then encode the video in accordance with the provisions of the HDMI protocol. The latter video data is sent to the second chip, and the second new piece decodes the received data and displays it on the display.

In some embodiments, the present application provides a sound processing method applied to a first controller in a display device, the method includes: receiving input audio and video data, the audio and video data including audio data and video data When the audio data includes the AC4 format, the first controller sends the audio data to the second controller through the first port so that the second controller controls the speaker according to the received audio data Output, sending the video data to the second controller through the second port so that the second controller controls the output of the display according to the received video data; when the audio data does not include the AC4 format, The first controller sends the audio data and the video data to the second controller through the second port, so that the second controller controls the output of the speaker according to the received audio data, and according to the received The received video data controls the output of the display.

In some embodiments, the present application provides a sound processing method applied to a first controller in a display device, the method includes: receiving input audio and video data, the audio and video data including audio data and video data ; When the audio data includes an audio data format that is not supported by the second port, the first controller sends the audio data to the second controller through the first port so that the second controller can be based on the received The audio data controls the output of the speaker, and the video data is sent to the second controller through the second port so that the second controller controls the output of the display according to the received video data; When the second port supports the format of the audio data, the first controller sends the audio data and the video data to the second controller through the second port, so that the second controller can respond to the received audio data. The data controls the output of the speaker, and controls the output of the display according to the received video data.

In some embodiments, the present application provides a sound processing method applied to a second controller in a display device. The method includes: when the audio data includes the AC4 format, receiving the first controller through the first controller The port sends the audio data to the second controller, and receives the video data sent by the first controller through the second port, wherein the audio data and the video data are received by the first controller When the audio data does not contain the AC4 format, the receiving first controller sends the audio data and the video data to the second controller through the second port; according to the received The audio data controls the output of the speaker, and controls the output of the display according to the received video data.

The technical solutions shown in the embodiments of this application adopt different ports for the transmission of audio data in different formats between the first chip and the second chip, thereby ensuring that audio data in all formats can be transmitted between the first chip and the second chip. It can effectively solve the problem that AC4 format audio data cannot be transparently transmitted through HDMI channels.

The second aspect of the embodiments of the present application shows a display device. Referring to FIG. 10, it includes:

A first chip, the first chip is provided with a first port and a second port;

A second chip communicatively connected with the first chip;

A speaker, the speaker and the second chip are connected;

A display, the display and the second chip are connected;

The first chip is configured to receive input audio and video data, where the audio and video data includes audio data and video data;

In response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port;

The second chip is configured to control the sound output of the speaker according to the audio data, and control the audio and image output of the display according to the video data.

The second port, the second port may be a USB port (Universal Serial Bus) or an HDMI port (High Definition MuItimedia Interface, high-definition multimedia port). The first chip and the second port send audio and video to the second chip. At this time, the audio data in the audio and video data is audio data in a non-AC4 format. Among them, the HDMI port mainly sends audio and video data and video data in non-AC4 format received by a third-party application installed on the first chip to the second chip. The audio and video signals also include image information collected by the camera. The signal received by the first chip is transmitted to the second chip through the HDMI port. It is worth noting that the HDMI port is not open to users in the technical solution shown in the embodiment of the present application. The main function of USB is to transfer the image data of the camera to the second chip via USB.

Wherein, the first chip further includes a communication port different from the port for inputting audio and video, and the connection channel between the first chip and the second chip includes a first channel passing through the communication port; The first chip sends an audio code stream corresponding to the audio data to the second chip through the first channel.

According to the audio code stream, the second chip activates a corresponding audio decoder to decode the audio data to obtain decoded audio data, and the decoded audio data is used to be output to the speaker by the second chip; activate the corresponding The video decoder decodes the video data to obtain decoded video data, and the decoded video data is used to be output to the display screen by the second chip.

In some embodiments, the present application provides a display device, including: a first chip provided with a first port and a second port; a second chip communicatively connected with the first chip; and a speaker , The speaker is connected to the second chip, the speaker is connected to the first chip through the second chip; a display, the display is connected to the second chip, and the display is connected through the The second chip is connected to the first chip; the first chip is configured to: receive input audio and video data, the audio and video data includes audio data and video data; when the audio data includes the AC4 format, the The first chip sends the audio data to the second chip through the first port so that the second chip controls the output of the speaker according to the received audio data, and sends it through the second port The video data is sent to the second chip so that the second chip controls the output of the display according to the received video data; when the audio data does not include the AC4 format, the first chip passes the The second port sends the audio data and the video data to a second chip, so that the second chip controls the output of the speaker according to the received audio data, and according to the received video data Control the output of the display.

In some embodiments, the present application provides a display device, including: a first chip provided with a first port and a second port; a second chip communicatively connected with the first chip; and a speaker , The speaker is connected to the second chip, the speaker is connected to the first chip through the second chip; a display, the display is connected to the second chip, and the display is connected through the The second chip is connected to the first chip; the first chip is configured to: receive input audio and video data, where the audio and video data includes audio data and video data; where the audio data includes the second port When the audio data format is not supported, the first chip sends the audio data to the second chip through the first port so that the second chip controls the speaker according to the received audio data. Output, sending the video data to the second chip through the second port so that the second chip controls the output of the display according to the received video data; supporting the second port In the format of audio data, the first chip sends the audio data and the video data to the second chip through the second port, so that the second chip controls the audio data according to the received audio data. And control the output of the display according to the received video data.

In some embodiments, the present application provides a display device, including: a first chip provided with a first port and a second port; a second chip communicatively connected with the first chip; and a speaker , The speaker is connected to the second chip, the speaker is connected to the first chip through the second chip; a display, the display is connected to the second chip, and the display is connected through the The second chip is connected to the first chip; the second chip is configured to: when the audio data contains the AC4 format, the receiving first chip sends the audio data to the second chip through the first port, and receives The first chip sends the video data through the second port, where the audio data and the video data are data in the audio and video data received by the first chip; the audio data does not include AC4 In the format, the first chip receives the audio data and the video data to the second chip through the second port; controls the output of the speaker according to the received audio data, and according to the received video data Control the output of the display.

It should be understood that the terms "first", "second", "third", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or Priority. It should be understood that the data used in this way can be interchanged under appropriate circumstances, for example, it can be implemented in an order other than those given in the illustration or description of the embodiments of the present application.

In addition, the terms "including" and "having" and any variations of them are intended to cover but not exclusively include. For example, a product or device including a series of components need not be limited to those clearly listed, but may include Other components that are not clearly listed or are inherent to these products or equipment.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the application range.

Claims

A display device, characterized by comprising:

A first controller, the first controller is provided with a first port and a second port;

A second controller communicatively connected with the first controller;

A speaker, the speaker is connected to the second controller, and the speaker is connected to the first controller through the second controller;

A display, the display is connected to the second controller, and the display is connected to the first controller through the second controller;

The first controller is configured to:

Receiving input audio and video data, where the audio and video data includes audio data and video data;

When the audio data includes the AC4 format, the first controller sends the audio data to the second controller through the first port, so that the second controller according to the received audio data Controlling the output of the speaker, and sending the video data to the second controller through the second port so that the second controller controls the output of the display according to the received video data;

When the audio data does not include the AC4 format, the first controller sends the audio data and the video data to the second controller through the second port, so that the second controller can receive The audio data controls the output of the speaker, and controls the output of the display according to the received video data.
The display device of claim 1, wherein:

The second port is an HDMI port, and the first port is different from the second port.
A display device, characterized by comprising:

A first controller, the first controller is provided with a first port and a second port;

A second controller communicatively connected with the first controller;

A speaker, the speaker is connected to the second controller, and the speaker is connected to the first controller through the second controller;

A display, the display is connected to the second controller, and the display is connected to the first controller through the second controller;

The first controller is configured to:

Receiving input audio and video data, where the audio and video data includes audio data and video data;

When the audio data includes an audio data format that is not supported by the second port, the first controller sends the audio data to the second controller through the first port so that the second control The audio device controls the output of the speaker according to the received audio data, and sends the video data to the second controller through the second port so that the second controller can perform the Controlling the output of the display;

When the second port supports the format of the audio data, the first controller sends the audio data and the video data to the second controller through the second port, so that the second control The device controls the output of the speaker according to the received audio data, and controls the output of the display according to the received video data.
A display device, characterized by comprising:

A first controller, the first controller is provided with a first port and a second port;

A second controller communicatively connected with the first controller;

A speaker, the speaker is connected to the second controller, and the speaker is connected to the first controller through the second controller;

A display, the display is connected to the second controller, and the display is connected to the first controller through the second controller;

The second controller is configured to:

When the audio data includes the AC4 format, the receiving first controller sends the audio data to the second controller through the first port, and receives the video data sent by the first controller through the second port, wherein: The audio data and the video data are data in the audio and video data received by the first controller;

When the audio data does not include the AC4 format, the receiving first controller sends the audio data and the video data to the second controller through the second port;

The output of the speaker is controlled according to the received audio data, and the output of the display is controlled according to the received video data.
The display device according to claim 4, wherein:

The second port is an HDMI port, and the first port is different from the second port.
The display device according to claim 4, wherein:

The second controller controlling the output of the speaker according to the received audio data, and controlling the output of the display according to the received video data includes:

According to the audio code stream, the second controller starts a corresponding audio decoder to decode the audio data to obtain decoded audio data, and the decoded audio data is used to be output by the second controller to the Speaker; activate a corresponding video decoder to decode the video data to obtain decoded video data, the decoded video data is used to be output to the display screen by the second controller.
A sound processing method, characterized by being applied to a first controller in a display device, the method comprising:

Receiving input audio and video data, where the audio and video data includes audio data and video data;

When the audio data includes the AC4 format, the first controller sends the audio data to the second controller through the first port so that the second controller controls the output of the speaker according to the received audio data , Sending the video data to the second controller through the second port, so that the second controller controls the output of the display according to the received video data;

When the audio data does not include the AC4 format, the first controller sends the audio data and the video data to the second controller through the second port, so that the second controller can respond to the received audio Data controlling the output of the speaker, and controlling the output of the display according to the received video data;

Wherein, the first controller is provided with a first port and a second port; the second controller is communicatively connected with the first controller; the speaker is connected with the second controller, the speaker The second controller is connected to the first controller; the display is connected to the second controller, and the display is connected to the first controller through the second controller.
8. The method according to claim 7, wherein the first port is a communication port, and a first channel passing through the communication port is provided between the first controller and the second controller.
A sound processing method, characterized by being applied to a first controller in a display device, the method comprising:

Receiving input audio and video data, where the audio and video data includes audio data and video data;

When the audio data includes an audio data format that is not supported by the second port, the first controller sends the audio data to the second controller through the first port so that the second controller can respond to the received audio data. Data controlling the output of the speaker, and sending the video data to a second controller through a second port so that the second controller controls the output of the display according to the received video data;

When the second port supports the audio data format, the first controller sends the audio data and the video data to the second controller through the second port, so that the second controller will The audio data of controlling the output of the speaker, and controlling the output of the display according to the received video data;

Wherein, the first controller is provided with a first port and a second port; the second controller is communicatively connected with the first controller; the speaker is connected with the second controller, the speaker The second controller is connected to the first controller; the display is connected to the second controller, and the display is connected to the first controller through the second controller.
A sound processing method, characterized in that it is applied to a second controller in a display device, and the method includes:

When the audio data includes the AC4 format, the receiving first controller sends the audio data to the second controller through the first port, and receives the video data sent by the first controller through the second port, wherein: The audio data and the video data are data in the audio and video data received by the first controller;

When the audio data does not include the AC4 format, the receiving first controller sends the audio data and the video data to the second controller through the second port;

Controlling the output of the speaker according to the received audio data, and controlling the output of the display according to the received video data;

Wherein, the first controller is provided with a first port and a second port; the second controller is communicatively connected with the first controller; the speaker is connected with the second controller, the speaker The second controller is connected to the first controller; the display is connected to the second controller, and the display is connected to the first controller through the second controller.
The method according to claim 10, wherein the first port is a communication port, and a first channel passing through the communication port is provided between the first controller and the second controller.
The method according to claim 11, wherein the controlling the output of the speaker according to the received audio data, and controlling the output of the display according to the received video data comprises:

According to the audio code stream, start a corresponding audio decoder to decode the audio data to obtain decoded audio data, and the decoded audio data is used by the second controller to output to the speaker; start the corresponding video The decoder decodes the video data to obtain decoded video data, and the decoded video data is used to be output to the display screen by the second controller.
The method according to claim 12, wherein before outputting the decoded audio data to the speaker and outputting the decoded video data to the display screen, the method further comprises:

Reading the audio time stamp of the decoded audio data and the video time stamp of the video data;

Comparing the audio timestamp and the video timestamp to generate a delay difference;

The output of the decoded audio data or the decoded video data is processed based on the delay difference.
The method according to claim 12, wherein the processing the output of the decoded audio data or the decoded video data based on the delay difference comprises:

In response to the audio time lagging behind the video and audio timestamp, at least a part of the processing process of the sound processing module is turned off to increase the output speed of the decoded audio data.
The method according to claim 12, wherein the processing the decoded audio data or the decoded video data based on the delay difference comprises:

In response to the audio time lagging behind the video and audio timestamp, the delay parameter corresponding to the audio delay unit is adjusted to zero, so that the audio delay unit does not delay processing the decoded audio data.
The method according to claim 12, wherein the processing the decoded audio data or the decoded video data based on the delay difference comprises:

In response to the audio time lagging behind the video and audio timestamp, the video processing unit is started to perform frame insertion processing on the decoded video data.
The method according to claim 12, wherein the processing the decoded audio data or the decoded video data based on the delay difference comprises:

In response to the video time lagging behind the audio time stamp, the delay parameter corresponding to the audio delay unit is adjusted to be larger, so that the audio delay unit performs delay processing on the decoded audio data.