CN112399246A

CN112399246A - Sound processing method of display equipment and display equipment

Info

Publication number: CN112399246A
Application number: CN202010749376.8A
Authority: CN
Inventors: 孙聪
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2019-08-18
Filing date: 2020-07-30
Publication date: 2021-02-23

Abstract

The embodiment provides a sound processing method of display equipment and the display equipment, and relates to the technical field of sound processing. The display apparatus includes a sound processor, a first controller communicatively connected to the display and the sound processor, and a second controller communicatively connected to the display and the sound processor, a sound reproduction apparatus, the sound processor to perform: receiving a first sound signal sent by a first controller, and converting the format of the first sound signal; and receiving the second sound signal and the selection signal sent by the second controller, and outputting the first sound signal or the second sound signal to the sound reproducing device according to the selection signal. The sound processing method of the display device and the display device provided by the embodiment can directly perform format conversion on the first sound signal output by the first controller and send the first sound signal to the power amplifier module, so that the processing of the second controller is avoided, and the delay of sound processing is reduced.

Description

Sound processing method of display equipment and display equipment

The present application claims priority from the chinese patent office filed on 18/8/2019, application No. 201910761463.2, entitled "a sound processing apparatus and display device", the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of sound processing technologies, and in particular, to a sound processing method for a display device and a display device.

Background

With the increasing demand of people for leisure and entertainment, various display devices (such as smart televisions and the like) can generally provide karaoke services. The display device can record the sound of the user in the process of playing the song accompaniment, and mix the sound and the accompaniment to play in real time, so that the user can hear the singing voice fused with the accompaniment in the process of singing the song.

Referring to fig. 1, a dual-system tv terminal includes a first chip and a second chip. In the process of singing K, the first chip collects sound signals of a user through the microphone, acquires accompaniment signals, mixes the sound signals with the accompaniment signals to obtain mixed signals, and sends the mixed signals to the second chip. And then, the second chip performs format conversion on the mixed signal and sends the converted mixed signal to a power amplification module, and then the mixed signal is played by a loudspeaker.

In the above process, since the sound signal is processed by the first chip and then needs to be processed by the second chip before being sent to the power amplifier module, and the second chip needs to buffer and read data in the process of receiving and sending the mixed signal, the delay of the mixed signal is long. Therefore, it is desirable to provide a processing device or a display device with low sound delay in the karaoke process.

Disclosure of Invention

The embodiment provides a sound processing method of a display device and the display device, which are used for solving the problem that the sound processing time delay of the existing display device is long.

In a first aspect, the present embodiment provides a display device, including:

a display;

a sound processor;

a user input interface for receiving an operation input by a user;

a first controller communicatively coupled to the display and the sound processor, and a second controller communicatively coupled to the display and the sound processor;

a sound reproducing device;

the sound processor is to perform:

receiving a first sound signal sent by the first controller, and converting the format of the first sound signal;

and receiving a second sound signal and a selection signal sent by the second controller, and outputting the first sound signal or the second sound signal to the sound reproducing device according to the selection signal.

In a second aspect, the present embodiment provides a sound processing method for a display apparatus including a sound processor, a first controller communicatively connected to a display and the sound processor, a second controller communicatively connected to the display and the sound processor, and a sound reproducing device, the method being applied to the sound processor, the method including:

receiving a first sound signal sent by the first controller or a second sound signal sent by the second controller, and converting the format of the first sound signal;

and receiving a selection signal sent by the second controller, and outputting the first sound signal or the second sound signal to the sound reproduction device according to the selection signal.

In a third aspect, the present embodiment provides a sound processing method for a display apparatus including a sound processor, a first controller communicatively connected to a display and the sound processor, a second controller communicatively connected to the display and the sound processor, and a sound reproducing device, wherein the method is applied to the first controller, and includes:

receiving a recording signal sent by a microphone;

mixing the sound of the recording signal and the accompaniment signal to obtain a first sound signal;

transmitting the first sound signal to the sound processor to cause the sound processor to output the first sound signal to the sound reproduction apparatus.

In a fourth aspect, the present embodiment provides a sound processing method for a display apparatus including a sound processor, a first controller communicatively connected to a display and the sound processor, a second controller communicatively connected to the display and the sound processor, and a sound reproducing device, wherein the method is applied to the second controller, and includes:

and sending a second sound signal and a selection signal to the sound processor so as to enable a signal switching circuit in the sound processor to output a first sound signal or the second sound signal to the sound reproduction device according to the selection signal, wherein the first sound signal is sent to the sound processor by the first controller.

According to the sound processing method of the display device and the display device, in the process of providing the Karaoke service, the first sound signal output by the first controller can be directly subjected to format conversion and sent to the sound reproduction device, the second controller is prevented from processing the first sound signal, and the delay of sound processing is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic diagram illustrating a hardware configuration of a display device;

fig. 2 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment;

fig. 3 is a block diagram exemplarily showing a hardware configuration of the control apparatus 100 according to the embodiment;

fig. 4 is a block diagram exemplarily showing a hardware configuration of the display device 200 according to the embodiment;

fig. 5 shows a block diagram of the hardware architecture of the display device 200 according to fig. 4;

fig. 6 is a diagram exemplarily showing a functional configuration of the display device 200 according to the embodiment;

fig. 7a schematically shows a software configuration in the display device 200 according to an embodiment;

fig. 7b schematically shows a configuration of an application in the display device 200 according to an embodiment;

fig. 8 is a schematic diagram illustrating a user interface in the display device 200 according to an embodiment;

fig. 9 is a diagram exemplarily showing a hardware configuration of a display device according to the embodiment;

fig. 10 is a diagram schematically illustrating a coaxial output-input circuit according to an embodiment;

fig. 11 is a schematic diagram illustrating an operation scenario between a display device and a microphone according to an embodiment;

fig. 12 is a schematic diagram exemplarily showing a hardware configuration of a signal conversion circuit according to the embodiment;

fig. 13 is a circuit diagram schematically showing a signal selection circuit according to the embodiment;

an interaction flow diagram of a sound processing method of a display device according to an embodiment is exemplarily shown in fig. 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present application is directed to a display apparatus having a dual system structure, i.e., having a first controller and a second controller, and a sound processing method thereof. The first controller controls the display and the sound player to realize the playing of the audio and video of the playing source, and the playing source of the first controller can be an external signal source device, such as a set top box connected to play a cable television; or, the playing source can also be an application preset in the first controller; alternatively, the playback source may also be an application installed in the first controller; or, the playing source may also be an application installed in the second controller, so as to implement playing of the network video, performing the video call, and supporting the user to use another preset application (App) in the second controller, where the second application is a preset video call master application in the second controller.

In practice, the applicant finds that due to the structural limitation of the dual-system display device itself, the logic for processing the video call cannot bring better experience to the user, for example, the display of the play source in the second controller is mutually exclusive with the display of the play source in the first controller, when the user watches the play source in the first controller, such as the user watches a cable television, the display cannot display the call interface corresponding to the video call application in the second controller, and likewise, the sound player cannot play audio related to the video call, and only when the user operates the cable television to quit and switch to the video call application in the second controller, the user can listen to and participate in the video call, which results in poor actual experience of the user.

In contrast, the application aims to realize that when the first controller is switched to other play sources except the second application through interactive coordination between the first controller and the second controller in the software layer, a user can also carry out video call in a thumbnail window mode, namely, chat while watching is realized, and specific video call processing logic is given based on switching operation of the user on states of the play sources and the call window. First, the structure, function, and implementation of the display device having a dual-system hardware structure will be described in detail.

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

Furthermore, due to the hardware structure, the hardware system of the conventional display device only supports one path of hard decoding resources, and usually only supports video decoding with a resolution of 4K at most, so when a user wants to perform video chat while watching a network television, the user needs to use the hard decoding resources (usually GPU in the hardware system) to decode the network video without reducing the definition of the network video screen, and in this case, the user can only process the video chat screen by using a general-purpose processor (e.g. CPU) in the hardware system to perform soft decoding on the video.

The soft decoding is adopted to process the video chat picture, so that the data processing burden of a CPU (central processing unit) can be greatly increased, and when the data processing burden of the CPU is too heavy, the problem of picture blocking or unsmooth flow can occur. Further, due to the data processing capability of the CPU, when the CPU performs soft decoding on the video chat screen, multi-channel video calls cannot be generally implemented, and when a user wants to perform video chat with multiple other users in the same chat scene, access is blocked.

In view of the above aspects, to overcome the above drawbacks, the present application discloses a dual hardware system architecture to implement multiple channels of video chat data (at least one channel of local video).

The concept to which the present application relates will be first explained below with reference to the drawings. It should be noted that the following descriptions of the concepts are only for the purpose of facilitating understanding of the contents of the present application, and do not represent limitations on the scope of the present application.

The term "module" as used in various embodiments of the present application may refer to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

The term "remote control" as used in the various embodiments of the present application refers to a component of an electronic device, such as the display device disclosed in the present application, that is capable of wirelessly controlling the electronic device, typically over a relatively short distance. The component may typically be connected to the electronic device using infrared and/or Radio Frequency (RF) signals and/or bluetooth, and may also include functional modules such as WiFi, wireless USB, bluetooth, motion sensors, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.

The term "gesture" as used in the embodiments of the present application refers to a user's behavior through a change in hand shape or an action such as hand movement to express an intended idea, action, purpose, or result.

The term "hardware system" used in the embodiments of the present application may refer to a physical component having computing, controlling, storing, inputting and outputting functions, which is formed by a mechanical, optical, electrical and magnetic device such as an Integrated Circuit (IC), a Printed Circuit Board (PCB) and the like. In various embodiments of the present application, a hardware system may also be referred to as a motherboard (or chip).

Fig. 2 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 2, a user may operate the display apparatus 200 through the control device 100.

The control device 100 may be a remote controller 100A, which can communicate with the display device 200 through an infrared protocol communication, a bluetooth protocol communication, a ZigBee (ZigBee) protocol communication, or other short-range communication, and is used to control the display device 200 in a wireless or other wired manner. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc., to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.

The control device 100 may also be an intelligent device, such as a mobile terminal 100B, a tablet computer, a notebook computer, etc., which may communicate with the display device 200 through a Local Area Network (LAN), a Wide Area Network (WAN), a Wireless Local Area Network (WLAN), or other networks, and implement control of the display device 200 through an application program corresponding to the display device 200.

For example, the mobile terminal 100B and the display device 200 may each be installed with a software application, so that the connection between the two can be realized through a network communication protocol, and the purpose of one-to-one control operation and data communication can be further realized. Such as: a control instruction protocol can be established between the mobile terminal 100B and the display device 200, a remote control keyboard is synchronized to the mobile terminal 100B, and the function of controlling the display device 200 is realized by controlling a user interface on the mobile terminal 100B; the audio and video content displayed on the mobile terminal 100B may also be transmitted to the display device 200, so as to implement a synchronous display function.

As shown in fig. 2, the display apparatus 200 may also perform data communication with the server 400 through various communication means. In various embodiments of the present application, the display device 200 may be allowed to be communicatively coupled to the server 400 via a local area network, wireless local area network, or other network. The server 400 may provide various contents and interactions to the display apparatus 200.

Illustratively, the display device 200 receives software program updates, or accesses a remotely stored digital media library by sending and receiving information, and Electronic Program Guide (EPG) interactions. The servers 400 may be a group or groups, and may be one or more types of servers. Other web service contents such as video on demand and advertisement services are provided through the server 400.

The display device 200 may be, for example, a liquid crystal display, an oled (organic Light Emitting diode) display, or a projection display device; on the other hand, the display device can be a display system consisting of an intelligent television or a display and a set-top box. The specific display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function that provides a computer support function in addition to the broadcast receiving tv function. Examples include a web tv, a smart tv, an Internet Protocol Tv (IPTV), and the like. In some embodiments, the display device may not have a broadcast receiving television function.

As shown in fig. 2, the display device may be connected or provided with a camera, and is configured to present a picture taken by the camera on a display interface of the display device or other display devices, so as to implement interactive chat between users. Specifically, the picture shot by the camera can be displayed on the display device in a full screen mode, a half screen mode or any optional area.

As an optional connection mode, the camera is connected with the display rear shell through the connecting plate, is fixedly installed in the middle of the upper side of the display rear shell, and can be fixedly installed at any position of the display rear shell as an installable mode, so that an image acquisition area is ensured not to be shielded by the rear shell, for example, the display orientation of the image acquisition area is the same as that of the display equipment.

As another optional connection mode, the camera is connected to the display rear shell through a connection board or another conceivable connector, the camera is capable of lifting and descending, a lifting motor is installed on the connector, when a user wants to use the camera or an application program wants to use the camera, the camera is lifted out of the display, and when the camera does not need to be used, the camera can be embedded in the rear shell, so that the camera is protected from being damaged, and privacy safety of the user is protected.

As an embodiment, the camera adopted in the present application may have 1600 ten thousand pixels, so as to achieve the purpose of ultra high definition display. In actual use, cameras higher or lower than 1600 ten thousand pixels may also be used.

After the camera is installed on the display device, the contents displayed by different application scenes of the display device can be fused in various different modes, so that the function which cannot be realized by the traditional display device is achieved.

Illustratively, a user may conduct a video chat with at least one other user while watching a video program. The presentation of the video program may be as a background frame over which a window for video chat is displayed. Pictorially, this function may be referred to as "chat while looking".

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

In another example, a user can conduct a video chat with at least one other user while entering the educational application for learning. For example, a student may interact remotely with a teacher while learning content in an educational application. Figuratively, this function may be referred to as "chatting while learning".

In another example, a user conducts a video chat with a player entering a card game while playing the game. For example, a player may enable remote interaction with other players when entering a gaming application to participate in a game. Figuratively, the function may be referred to as "play while watching".

Optionally, the game scene is fused with the video picture, the portrait in the video picture is scratched and displayed in the game picture, and the user experience is improved.

Optionally, in the motion sensing game (such as ball hitting, boxing, running and dancing), the human posture and motion, limb detection and tracking and human skeleton key point data detection are obtained through the camera, and then the human posture and motion, the limb detection and tracking and the human skeleton key point data detection are fused with the animation in the game, so that the game of scenes such as sports and dancing is realized.

In another example, a user may interact with at least one other user in a karaoke application in video and voice. Figuratively, this function may be referred to as "sing while looking". Optionally, when at least one user enters the application in a chat scenario, multiple users may jointly complete recording of a song.

In another example, a user may turn on a camera locally to take pictures and videos, figurative, which may be referred to as "looking into the mirror".

In other examples, more or less functionality may be added. The function of the display device is not particularly limited in the present application.

Fig. 3 is a block diagram schematically showing the configuration of the control apparatus 100 according to the 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 apparatus 100 is configured to control the display device 200, and to receive an input operation instruction from a user, and convert the operation instruction into an instruction recognizable and responsive by the display device 200, and to mediate interaction between the user and the display device 200. Such as: the user operates the channel up/down key on the control device 100, and the display device 200 responds to the channel up/down operation.

In some embodiments, the control device 100 may be a smart device. Such as: the control apparatus 100 may install various applications that control the display device 200 according to user demands.

In some embodiments, as shown in fig. 2, the mobile terminal 100B or other intelligent electronic device may function similar to the control apparatus 100 after installing an application for manipulating the display device 200. Such as: the user may implement the functions of controlling the physical keys of the apparatus 100 by installing applications, various function keys or virtual buttons of a graphical user interface available on the mobile terminal 100B or other intelligent electronic devices.

The controller 110 includes a processor 112, a RAM113 and a ROM114, a communication interface, and a communication bus. The controller 110 is used to control the operation of the control device 100, as well as the internal components for communication and coordination and external and internal data processing functions.

The communicator 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display apparatus 200. The communicator 130 may include at least one of a WIFI module 131, a bluetooth module 132, an NFC module 133, and the like.

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, a key 144, and the like. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to the display device 200.

The output interface includes an interface that transmits the received user instruction to the display apparatus 200. In some embodiments, it may be an infrared interface or a radio frequency interface. Such as: when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.

In some embodiments, the control device 100 includes at least one of a communicator 130 and an output interface. The communicator 130 is configured in the control device 100, such as: the modules of WIFI, bluetooth, NFC, etc. may send the user input command to the display device 200 through the WIFI protocol, or the bluetooth protocol, or the NFC protocol code.

And a memory 190 for storing various operation programs, data and applications for driving and controlling the control apparatus 100 under the control of the controller 110. The memory 190 may store various control signal commands input by a user.

And a power supply 180 for providing operation power support for each electrical component of the control device 100 under the control of the controller 110. A battery and associated control circuitry.

A hardware configuration block diagram of a hardware system in the display apparatus 200 according to an exemplary embodiment is exemplarily shown in fig. 4.

When a dual hardware system architecture is adopted, the mechanism relationship of the hardware system can be shown in fig. 4. The first controller comprises various processors and various interfaces of the first controller, and the second controller comprises various processors and various interfaces of the second controller. The first controller and the second controller may each have a relatively independent operating system installed therein, and the operating system of the second controller and the operating system of the first controller may communicate with each other through a communication protocol, which is as follows: the frame layer of the operating system of the second controller and the frame layer of the operating system of the first controller can communicate for the transmission of commands and data, so that there are two independent but interrelated subsystems in the display device 200.

As shown in fig. 4, the connection, communication and power supply between the second controller and the first controller can be realized through a plurality of interfaces of different types. The interface type of the interface between the second controller and the first controller may include a General-purpose input/output (GPIO), a USB interface, an HDMI interface, a UART interface, and the like. One or more of these interfaces may be used for communication or power transfer between the second controller and the first controller. For example, as shown in fig. 4, in the dual hardware system architecture, the first controller may be powered by an external power source (power), and the second controller may be powered by the first controller instead of the external power source. Optionally, the external power source may also be connected to the first controller and the second controller, respectively, to supply power to the first controller and the second controller.

In addition to the interface for connecting with the first controller, the second controller may also include an interface for connecting with other devices or components, such as a MIPI interface for connecting with a Camera (Camera), a bluetooth interface, etc., shown in fig. 4.

Similarly, in addition to the interface for connecting with the first controller, the first controller may further include an VBY interface for connecting with a display tcon (timer Control register), an I2S interface for connecting with a power Amplifier (AMP) and a Speaker (Speaker); and an IR/Key interface, a USB interface, a Wifi interface, a bluetooth interface, an HDMI interface, a Tuner interface, and the like.

The dual hardware system architecture of the present application is further described below with reference to fig. 5. It should be noted that fig. 5 is only an exemplary illustration of the dual hardware system architecture of the present application, and does not represent a limitation of the present application. In actual practice, both hardware systems may contain more or less hardware or interfaces as desired.

A block diagram of the hardware architecture of the display device 200 according to fig. 4 is exemplarily shown in fig. 5. As shown in fig. 5, the hardware system of the display apparatus 200 may include a first controller 210 and a second controller 310, and a module connected to the first controller 210 or the second controller 310 through various interfaces.

The first controller 210 mainly implements a conventional television function (for example, a set-top box may be connected externally), and the second controller 310 may be configured to receive an instruction sent by the first controller 210.

The modules connected to the first controller 210 may include a tuning demodulator 220, a communicator 230, an external device interface 250, a memory 290, a user input interface 260-3, a video processor 260-1, an audio processor 260-2, a display 280, an audio output interface 270, and a power supply module 240. The first controller 210 may include more or fewer modules in other embodiments.

In other embodiments, more or fewer modules may be connected to the first controller 210.

In other embodiments, the first controller 210 may include any one or more of the modules described above. When any one or more of the above modules is included in the first controller 210, the first controller 210 may not be connected to modules having the same function.

The tuning demodulator 220 is configured to perform modulation and demodulation processing such as amplification, mixing, resonance and the like on a broadcast television signal received in a wired or wireless manner, so as to demodulate an audio/video signal carried in a frequency of a television channel selected by a user and additional information (e.g., an EPG data signal) from a plurality of wireless or wired broadcast television signals. Depending on the broadcast system of the television signal, the signal path of the tuner 220 may be various, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; according to different modulation types, the adjustment mode of the signal can be a digital modulation mode or an analog modulation mode; and depending on the type of television signal being received, tuner demodulator 220 may demodulate analog and/or digital signals.

The tuner demodulator 220 is also operative to respond to the user-selected television channel frequency and the television signal carried thereby, in accordance with the user selection and as controlled by the first controller 210.

In other exemplary embodiments, the tuner/demodulator 220 may be in an external device, such as an external set-top box. Thus, the set-top box outputs television audio and video signals after modulation and demodulation, and the television audio and video signals are input into the display device 200 through the external device interface 250.

The communicator 230 is a component for communicating with an external device or an external server 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 other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module (not shown).

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

The external device interface 250 is a component for providing data transmission between the first controller 210 and the second controller and other external devices. The external device interface 250 may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner, and may receive data such as a video signal (e.g., moving image), an audio signal (e.g., music), additional information (e.g., EPG), etc. of the external apparatus.

The external device interface 250 may include: a High Definition Multimedia Interface (HDMI) terminal is also referred to as HDMI251, a Composite Video Blanking Sync (CVBS) terminal is also referred to as AV252, an analog or digital component terminal is also referred to as component 253, a Universal Serial Bus (USB) terminal is also referred to as USB254, a Red Green Blue (RGB) terminal (not shown in the figure), and the like. The number and type of external device interfaces are not limited by this application.

The first controller 210 controls the operation of the display apparatus 200 and responds to the operation of the user by running various software control programs (e.g., an operating system and/or various application programs) stored on the memory 290.

As shown in fig. 5, the first controller 210 includes a read only memory RAM214, a random access memory ROM213, a graphics processor 216, a CPU processor 212, a communication interface 218, and a communication bus. The RAM214, the ROM213, the graphic processor 216, the CPU processor 212, and the communication interface 218 are connected via a bus.

A ROM213 for storing instructions for various system boots. If the display apparatus 200 starts to be powered on when the power-on signal is received, the CPU processor 212 executes a system boot instruction in the ROM213, and copies the operating system stored in the memory 290 to the RAM214 to start running the boot operating system. After the start of the operating system is completed, the CPU processor 212 copies the various application programs in the memory 290 to the RAM214, and then starts running and starting the various application programs.

A graphics processor 216 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operator and displaying the rendered result on the display 280.

A CPU processor 212 for executing operating system and application program instructions stored in memory 290. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some exemplary embodiments, the CPU processor 212 may include a plurality of processors. The plurality of processors may include a main processor and a plurality of or a sub-processor. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. A plurality of or one sub-processor for performing an operation in a standby mode or the like.

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

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

Wherein the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to an icon. The user command for selecting the UI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

The memory 290 includes a memory for storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 290, including: a base module, a detection module, a communication module, a display control module, a browser module, and various service modules, etc. (not shown in the figure).

The basic module is a bottom layer software module for signal communication between hardware in the display device 200 and sending processing and control signals to an upper layer module. The detection module is a management module used for collecting various information from various sensors or user input interfaces, and performing digital-to-analog conversion and analysis management. The voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is a module for controlling the display 280 to display image content, and may be used to play information such as multimedia image content and UI interface. The communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing data communication between the browsing servers. The service module is a module for providing various services and various application programs.

Meanwhile, the memory 290 is also used to store visual effect maps and the like for receiving external data and user data, images of respective items in various user interfaces, and a focus object.

A user input interface 260-3 for transmitting an input signal of a user to the first controller 210 or transmitting a signal output from the first controller 210 to the user. For example, the control device (e.g., the mobile terminal 100B or the remote controller 100A) may send an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by the user to the user input interface, and then forward the input signal to the first controller 210 through the user input interface 260-3; alternatively, the control device may receive an output signal such as audio, video or data processed by the first controller 210 and output from the user input interface 260-3, and display or output the received output signal in audio or vibration form.

In some embodiments, the user may input a user command on a Graphical User Interface (GUI) displayed on the display 280, and the user input interface 260-3 receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface 260-3 receives the user input command by recognizing the sound or gesture through the sensor.

A video signal displayed or played on the display 280.

Illustratively, the video processor 260-1 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like (not shown in the figure).

A video signal displayed or played on the display 280.

The demultiplexing module is used for demultiplexing the input audio and video data stream, and if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and video data stream into a video signal and an audio signal.

And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.

And the image synthesis module, such as an image synthesizer, is used for performing superposition mixing processing on the GUI signal input by the user or generated by the user and the video picture after the zooming processing by the graphics generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert a frame rate of an input video, such as a 24Hz, 25Hz, 30Hz, or 60Hz video, into a 60Hz, 120Hz, or 240Hz frame rate, wherein the input frame rate may be related to a source video stream, and the output frame rate may be related to a refresh rate of a display. And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format of a display, such as converting the format of the signal output by the frame rate conversion module to output an RGB data signal.

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

And, a driving component for driving the display according to the type of the display 280. Alternatively, in case the display 280 is a projection display, it may also comprise a projection device and a projection screen.

The audio processor 260-2 is configured to receive an audio signal, decompress and decode the audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, amplification and other audio data processing to obtain an audio signal that can be played in the speaker 272.

An audio output interface 270 for receiving the audio signal output by the audio processor 260-2 under the control of the first controller 210, wherein the audio output interface may include a speaker 272 or an external sound output terminal 274 for outputting to a generating device of an external device, such as: external sound terminal or earphone output terminal.

In other exemplary embodiments, video processor 260-1 may comprise one or more chip components. 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 may be integrated in one or more chips together with the first controller 210.

And a power supply module 240 for providing power supply support for the display device 200 by the power input from the external power source under the control of the first controller 210. The power supply module 240 may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply installed outside the display apparatus 200, such as a power supply interface for providing an external power supply in the display apparatus 200.

As shown in fig. 5, the modules connected with the second controller 310 may include a communicator 330, a detector 340, and a memory 390. A user input interface, a video processor 360-1, an audio processor 360-2, a display, an audio output interface (not shown) may also be included in some embodiments. In some embodiments, there may also be a power module ((not shown)) that independently powers the second controller 310.

In some embodiments, more or fewer modules may also be connected to the second controller 310.

In some embodiments, the second controller 310 may include any one or more of the modules described above. When any one or more of the above modules is included in the second controller 310, the first controller 210 may not be connected to modules having the same function.

The communicator 330 is a component for communicating with an external device or an external server 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 other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module. (not shown in the figure)

The communicator 330 of the second controller 310 and the communicator 230 of the first controller 210 also interact with each other. For example, the WiFi module 231 within the hardware system of the first controller 210 is used to connect to an external network, generate network communication with an external server, and the like. The WiFi module 331 in the hardware system of the second controller 310 is used to connect to the WiFi module 231 of the first controller 210 without making a direct connection with an external network or the like, and the second controller 310 is connected to the external network through the first controller 210. Therefore, for the user, a display device as in the above embodiment displays a WiFi account to the outside.

The detector 340 is a component of the display device, the second controller 310 is used to collect an external environment or a signal interacting with the outside. The detector 340 may include a light receiver 342, a sensor for collecting the intensity of ambient light, which may be used to adapt to display parameter changes, etc.; the system may further include an image collector 341, such as a camera, a video camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or interact gestures with the user, adaptively change display parameters, and identify user gestures, so as to implement a function of interaction with the user.

An external device interface 350, which provides a component for data transmission between the second controller 310 and the first controller 210 or other external devices. The external device interface 350 may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner.

A video processor 360-1 for processing the associated video signal.

The second controller 310 controls the operation of the display device 200 and responds to the operation of the user by running various software control programs stored on the memory 390 (e.g., using installed third party applications, etc.), and interacting with the first controller 210.

As shown in fig. 5, the second controller 310 includes a read only memory ROM313, a random access memory RAM314, a graphic processor 316, a CPU processor 312, a communication interface 318, and a communication bus. The ROM313 and the RAM314, the graphic processor 316, the CPU processor 312, and the communication interface 318 are connected via a bus.

A ROM313 for storing instructions for various system boots. The CPU processor 312 executes the system boot instructions in the ROM313, copying the operating system stored in the memory 390 into the RAM314 to start running the boot operating system. After the start of the operating system is completed, the CPU processor 312 copies various application programs in the memory 390 to the RAM314, and then starts running and starting various application programs.

A CPU processor 312 for executing the operating system and application program instructions stored in the memory 390, communicating with the first controller 210, transmitting and interacting signals, data, instructions, etc., and executing various application programs, data and contents according to various interactive instructions receiving external input, so as to finally display and play various audio-video contents.

The communication interface 318 is plural and may include a first interface 318-1 to an nth interface 318-n. These interfaces may be network interfaces connected to external devices via a network, or may be network interfaces connected to the first controller 210 via a network.

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

A graphics processor 316 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operator and displaying the rendered result on the display 280.

The graphics processor 316 of the second controller 310 and the graphics processor 216 of the first controller 210 are both capable of generating various graphics objects. In distinction, if the application 1 is installed in the second controller 310 and the application 2 is installed in the first controller 210, the graphic object is generated by the graphic processor 316 of the second controller 310 when the user performs an instruction input by the user in the application 1 at the interface of the application 1. When a user is at the interface of the application 2 and an instruction input by the user is made within the application 2, a graphic object is generated by the graphic processor 216 of the first controller 210.

Fig. 6 is a diagram schematically illustrating a functional configuration of a display device according to an exemplary embodiment.

As shown in fig. 6, the memory 390 of the second controller and the memory 290 of the first controller are used to store an operating system, an application program, contents, user data, and the like, respectively, perform system operations for driving the display device 200 and various operations in response to a user under the control of the second controller 310 and the first controller 210. The memory 390 of the second controller and the memory 290 of the first controller may include volatile and/or non-volatile memory.

As for the first controller 210, the memory 290 is specifically used for storing an operating program for driving the first controller 210 in the display device 200, and storing various applications built in the display device 200, various applications downloaded by a user from an external device, various graphical user interfaces related to the applications, various objects related to the graphical user interfaces, user data information, and internal data of various supported 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 for storing drivers and related data of the video processor 260-1 and the audio processor 260-2, the display 280, the communicator 230, the tuning demodulator 220, the input/output interface, and the like.

In some embodiments, memory 290 may store software and/or programs, software programs for representing an Operating System (OS) including, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. For example, the kernel may control or manage system resources, or functions implemented by other programs (e.g., the middleware, APIs, or applications), and the kernel may provide interfaces to allow the middleware and APIs, or applications, to access the controller to implement controlling or managing system resources.

The example 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, a first audio control module 2906, an external instruction recognition module 2907, a communication control module 2908, a light receiving module 2909, a power control module 2910, an operating system 2911, and an application 2912, a browser module (not shown in the figure), and the like. The first controller 210 performs operations such as: the system comprises a broadcast television signal receiving and demodulating function, a television channel selection control function, a volume selection control function, an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

The memory 390 includes a memory storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 390, including: a base module, a detection module, a communication module, a display control module, a browser module, and various service modules, etc. (not shown in the figure). Since the functions of the memory 390 and the memory 290 are similar, reference may be made to the memory 290 for relevant points, and thus, detailed description thereof is omitted here.

Illustratively, the memory 390 includes an image control module 3904, a second audio control module 3906, an external instruction recognition module 3907, a communication control module 3908, a light receiving module 3909, an operating system 3911, and an application 3912, a browser module 3913, and the like. The second controller 310 performs operations such as: the system comprises an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

Distinctively, the external instruction recognition module 2907 of the first controller and the external instruction recognition module 3907 of the second controller can recognize different instructions.

Illustratively, since the image receiving device such as a camera is connected with the second controller 310, the external instruction recognition module 3907 of the second controller may include an image recognition module 3907-1, a graph database is stored in the image recognition module 3907-1, and when the camera receives an external graph instruction, the camera corresponds to the instruction in the graph database to perform instruction control on the display device. Since the voice receiving device and the remote controller are connected to the first controller 210, the external command recognition module 2907 of the first controller may include a voice recognition module 2907-2, a voice database is stored in the voice recognition module 2907-2, and when the voice receiving device receives an external voice command or the like, the voice receiving device and the like perform a corresponding relationship with a command in the voice database to perform command control on the display device. Similarly, the control device 100 such as a remote controller is connected to the first controller 210, and the button command recognition module 2907-3 performs command interaction with the control device 100.

A block diagram of the configuration of the software system in the display device 200 according to an exemplary embodiment is exemplarily shown in fig. 7 a.

For the first controller 210, as shown in FIG. 7a, the operating system 2911, which includes executing operating software for handling various basic system services and for performing hardware related tasks, acts as an intermediary between applications and hardware components for performing data processing.

In some embodiments, portions of the operating system kernel may contain a series of software to manage the display device hardware resources and provide services to other programs or software code.

In other embodiments, portions of the operating system kernel may include one or more device drivers, which may be a set of software code in the operating system that assists in operating or controlling the devices or hardware associated with the display device. The drivers may contain code that operates the video, audio, and/or other multimedia components. Examples include a display, a camera, Flash, WiFi, and audio drivers.

The accessibility module 2911-1 is configured to modify or access the application program to achieve accessibility and operability of the application program for displaying content.

A communication module 2911-2 for connection to other peripherals via associated communication interfaces and a communication network.

The user interface module 2911-3 is configured to provide an object for displaying a user interface, so that each application program can access the object, and user operability can be achieved.

Control applications 2911-4 for controlling process management, including runtime applications and the like.

The event transmission system 2914 may be implemented within the operating system 2911 or within the application 2912. In some embodiments, an aspect is implemented within the operating system 2911, while implemented in the application 2912, for listening for various user input events, and will implement one or more sets of predefined operations in response to various events referring to the recognition of various types of events or sub-events.

The event monitoring module 2914-1 is configured to monitor an event or a sub-event input by the user input interface.

The event identification module 2914-2 is used to input various event definitions for various user input interfaces, identify various events or sub-events, and transmit them to the process for executing one or more sets of their corresponding handlers.

The event or sub-event refers to an input detected by one or more sensors in the display device 200 and an input of an external control device (e.g., the control apparatus 100). Such as: the method comprises the following steps of inputting various sub-events through voice, inputting a gesture sub-event through gesture recognition, inputting a remote control key command of a control device and the like. Illustratively, the one or more sub-events in the remote control include a variety of forms including, but not limited to, one or a combination of key presses up/down/left/right/, ok keys, key presses, and the like. And non-physical key operations such as move, hold, release, etc.

The interface layout management module 2913, directly or indirectly receiving the input events or sub-events from the event transmission system 2914, monitors the input events or sub-events, and updates the layout of the user interface, including but not limited to the position of each control or sub-control in the interface, and the size, position, and level of the container, which are related to the layout of the interface.

Since the os 3911 of the second controller has similar functions to the os 2911 of the first controller, reference may be made to the os 2911 for relevant points, and details are not repeated here.

As shown in fig. 7b, the application programs of the display device include various application programs that can be executed at the display device 200.

The first controller's applications 2912 may include, but are not limited to, one or more applications such as: a video-on-demand application, an application center, a game application, and the like. The applications 3912 of the second controller may include, but are not limited to, one or more applications such as: live television applications, media center applications, and the like. It should be noted that what applications are respectively contained in the second controller and the first controller is determined according to the operating system and other designs, and the present invention does not need to make specific limitations and divisions on the applications contained in the second controller and the first controller.

The live television application program can provide live television through different signal sources. For example, a live television application may provide television signals using input from cable television, radio broadcasts, satellite services, or other types of live television services. And, the live television application may display video of the live television signal on the display device 200.

A video-on-demand application may provide video from different storage sources. Unlike live television applications, video on demand provides a video display from some storage source. For example, the video on demand may come from a server side of the cloud storage, from a local hard disk storage containing stored video programs.

The media center application program can provide various applications for playing multimedia contents. For example, a media center, which may be other than live television or video on demand, may provide services that a user may access to various images or audio through a media center application.

The application program center can provide and store various application programs. The application may be a game, an application, or some other application associated with a computer system or other device that may be run on a display device. The application center may obtain these applications from different sources, store them in local storage, and then be operable on the display device 200.

The modules included in the hardware in the above embodiments are an example of a real-time implementation manner, and are not necessarily shown in the display device or the method of the present application, and those skilled in the art may add or subtract appropriately on the basis of the above hardware implementation manner as long as the implementation of the scheme is not affected.

A schematic diagram of a user interface in a display device 200 according to an exemplary embodiment is illustrated in fig. 8. As shown in fig. 8, the user interface includes a plurality of view display areas, illustratively, a first view display area 201 and a play screen 202, wherein the play screen includes a layout of one or more different items. And a selector in the user interface indicating that the item is selected, the position of the selector being movable by user input to change the selection of a different item.

It should be noted that the multiple view display areas may present display screens of different hierarchies. For example, a first view display area may present video chat project content and a second view display area may present application layer project content (e.g., web video, VOD (video on Demand) presentation, application screens, etc.).

Optionally, the different view display areas are presented with different priorities, and the display priorities of the view display areas are different among the view display areas with different priorities. If the priority of the system layer is higher than that of the application layer, when the user uses the acquisition selector and picture switching in the application layer, the picture display of the view display area of the system layer is not blocked; and when the size and the position of the view display area of the application layer are changed according to the selection of the user, the size and the position of the view display area of the system layer are not influenced.

The display frames of the same hierarchy can also be presented, at this time, the selector can switch between the first view display area and the second view display area, and when the size and the position of the first view display area are changed, the size and the position of the second view display area can be changed along with the change.

Since the first controller and the second controller may have independent operating systems installed therein, there are two independent but interrelated subsystems in the display device 200. For example, Android (Android) and various kinds of APPs can be independently installed on the first controller and the second controller, so that each controller can realize a certain function, and the first controller and the second controller cooperatively realize a certain function. Therefore, the screen interaction method provided by the embodiment is applied to display equipment, such as a television terminal, a large-screen intelligent terminal and the like, the display equipment at least comprises two systems, and the systems can communicate with each other.

On the basis of the foregoing dual system display device, a hardware configuration diagram of the display device according to an embodiment is exemplarily shown in fig. 9. The display apparatus 200 includes a first controller 1, a second controller 2, a sound processor 3, and a sound reproducing device 4, where the sound reproducing device 4 includes a power amplifier circuit 401 and a speaker 402.

The first controller 1 is configured to mix the recording signal and the accompaniment signal transmitted from the microphone 300 to obtain a first sound signal, and transmit the first sound signal to the sound processor 3.

The first controller 1 is configured with a karaoke application program, and is capable of controlling the karaoke application program to run, acquiring a video signal and an accompaniment signal of a current song from the configuration of the karaoke application program, and receiving a recording signal sent by a microphone. The video signal is sent to the second controller 2, so that the second controller 2 controls the display to display, and the accompaniment signal needs to be mixed with the recording information of the user.

In some embodiments, referring to fig. 9, the first controller 1 includes a signal receiving circuit 101, a processing circuit 102, and a signal output circuit 103.

The signal receiving circuit 101 is configured to receive a recording signal sent by a microphone. The processing circuit 102 is configured to mix the sound signal and the accompaniment signal to obtain a first sound signal. A signal output circuit 103 is configured to transmit the first sound signal to the sound processor 3, for example, to transmit the first sound signal to the sound processor 3 using a coaxial channel.

Illustratively, referring to fig. 10, the coaxial output and input section circuit includes: the circuit comprises resistors R1, R2, R3, R4, R5 and R6, capacitors C1 and C2, a diode D1 and a triode B. One common end of the parallel structure of D1, R2 and R3 is grounded, the other common end is an input end and is connected with one parallel common end of R1 and C1, the other parallel common end of R1 and C1 is respectively connected with one end of C2, R4 and R5, the other ends of C2 and R4 are grounded, the other end of R5 is respectively connected with one end of R6 and a first pin of B, a second pin of B is connected with R7, and a third pin of B is connected with a third pin of R6 and is a signal output end.

Furthermore, a schematic diagram of an operation scenario between a display device and a microphone according to an embodiment is exemplarily shown in fig. 11. The microphone 300 may be a wireless microphone 300A, a wired microphone 300B, a pre-microphone 300C for a display device, or a remote controller 100A or the like capable of picking up a user's voice.

The wireless microphone 300A serves to transmit the recorded sound signal to the display apparatus 200 by way of wireless communication. For example, an UHF (ultra high frequency) microphone transmits a recording signal to the display device 200 through a signal frequency of 700-. Of course, the wireless microphone 300A may be other types of microphones, such as a VHF (very high frequency) microphone, and the present embodiment does not limit this.

The wired microphone 300B is used for transmitting the recorded sound signal to the display device 200 by means of wired communication, i.e. the signal is transmitted between the wired microphone 300B and the display device 200 through a tangible medium such as a metal wire.

A pre-microphone 300C is provided on the display apparatus 200, which can directly transmit a sound signal to the display apparatus 200 after collecting it.

The remote controller 100A is provided with a recording input key through which a user can record his voice and transmit the recording to the display device 200.

A second controller 2 for sending the second sound signal to the sound processor 3, and a selection signal. The second sound signal refers to a sound signal output by the display device in a scene where the song is not played, for example, a scene where a movie is played, a video chat, and the like.

In some embodiments, the sound processor 3 includes a signal conversion circuit 301 and a signal switching circuit 302.

The signal conversion circuit is configured to receive the first sound signal sent by the first controller, perform format conversion (for example, convert the first sound signal into an I2S signal) on the first sound signal, and send the first sound signal after the format conversion to the signal switching circuit 302.

For example, referring to fig. 12, the signal conversion circuit 301 includes: a clock circuit 301-1, a signal input circuit 301-2, a control circuit 301-3, a power supply circuit 301-4, a processing circuit 301-5, and a signal output circuit 301-6. The clock circuit 301-1 is configured to provide a clock signal to the signal conversion circuit 301. The signal input circuit 301-2 inputs the first sound signal to the signal conversion circuit 301. And a control circuit 301-3 for controlling the units of the signal conversion circuit 301 to work cooperatively. The power supply circuit 301-4, which is used to provide operating power support for the signal conversion circuit 301, may include a battery and associated control circuitry. The processing circuitry 301-5 for converting the first sound signal into a predetermined format, such as I2S format, may include associated processing circuitry. And a signal output circuit 301-5 for outputting the first sound signal after the format conversion.

A signal switching circuit 302, configured to receive the first sound signal after format conversion or the second sound signal sent by the second controller 2; and receives the selection signal transmitted from the second controller 2, and outputs the first audio signal or the second audio signal to the audio reproducing apparatus 4 according to the selection signal.

In some embodiments, the selection signal may be a signal controlled to be sent by GPIO (General-purpose input/output), and includes a high-level signal and a low-level signal. The high level signal is used for controlling the signal switching circuit 302 to send the first sound signal to the power amplifier circuit 4; and a low level signal for controlling the signal switching circuit 302 to send the second sound signal to the power amplifier circuit 4.

For example, referring to fig. 13, the signal switching circuit 302 has 1B1, 2B1, and 3B1 for inputting the first sound signal, 1B2, 2B2, and 3B2 for inputting the second sound signal, and the switches IA, 2A, and 3A for selectively outputting the first sound signal or the second sound signal according to the selection signal.

The power amplifier circuit 401 is configured to amplify the power of the first sound signal or the second sound signal.

And a speaker 402 for playing the first sound signal or the second sound signal after power amplification. In summary, the display device 100 provided in this embodiment can directly perform format conversion on the first sound signal output by the first controller 1 and send the first sound signal to the sound reproducing apparatus in the process of providing the karaoke service, thereby avoiding the processing of the first sound signal by the second controller 2 and reducing the delay of sound processing.

In addition, in the process of switching signals by the signal switch 302, the power amplifier module 4 may be in an unstable state, cannot acquire stable data, and is prone to generate pop sound, silence, and other problems. Therefore, as an optional implementation manner, the second controller 2 of the display device provided in this embodiment is further configured to control the power amplifier module to mute 4 before the signal switch 302 switches the signal. Moreover, after the signal switch 302 switches the signal, the power amplifier module 302 is controlled to remove the mute, so as to avoid the problem of instability of the power amplifier module caused by instantaneous signal switching.

The present application also provides an embodiment of a method of sound processing for a display device including a sound processor, a first controller communicatively coupled to a display and the sound processor, and a second controller communicatively coupled to the display and the sound processor, as shown in the interactive flow diagram of the method of sound processing for a display device of fig. 14, the method for the sound processor comprising:

and receiving a selection signal sent by the second controller, and outputting the first sound signal or the second sound signal to a sound reproduction device according to the selection signal.

In some embodiments, the present application also provides an embodiment of a method of sound processing for a display device, the display device including a sound processor, a first controller communicatively coupled to a display and the sound processor, and a second controller communicatively coupled to the display and the sound processor, the method for the first controller comprising:

receiving a recording signal sent by a microphone;

transmitting the first sound signal to the sound processor to cause the sound processor to output the first sound signal to a sound reproduction apparatus.

In some embodiments, the present application also provides an embodiment of a method of sound processing for a display device, the display device including a sound processor, a first controller communicatively coupled to a display and the sound processor, and a second controller communicatively coupled to the display and the sound processor, the method for the second controller comprising:

and sending a second sound signal and a selection signal to the sound processor so as to enable a signal switching circuit in the sound processor to output a first sound signal or the second sound signal to a sound reproduction device according to the selection signal, wherein the first sound signal is sent to the sound processor by the first controller.

The three method embodiments described above may refer to the description and development of the display device embodiment, and are not described here again.

The same or similar contents in the embodiments of the present application may be referred to each other, and the related embodiments are not described in detail.

Those skilled in the art will clearly understand that the techniques in the embodiments of the present application may be implemented by way of software plus a required general hardware platform. In particular implementations, the present application also provides a computer storage medium, where the computer storage medium may store a program that may include program steps for video call processing logic configured to be executed by a first controller and a second controller in a display device. The computer storage medium may be a magnetic disk, an optical disk, a read-0nly memory (ROM) or a Random Access Memory (RAM).

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. The specification and examples are to be regarded in an illustrative manner only and are not intended to limit the scope of the present invention. With a true scope and spirit of the invention being indicated by the following claims.

Claims

1. A display device, comprising:

a display;

a sound processor;

a user input interface for receiving an operation input by a user;

a sound reproducing device;

the sound processor is to perform:

2. The display device of claim 1, wherein the sound processor comprises:

the signal conversion circuit is used for receiving a first sound signal sent by the first controller, converting the format of the first sound signal and sending the first sound signal to the signal switching circuit;

and the signal switching circuit is used for receiving the first sound signal or the second sound signal sent by the second controller, receiving a selection signal sent by the second controller, and outputting the first sound signal or the second sound signal to the sound reproducing device according to the selection signal.

3. The display device according to claim 2, wherein the signal conversion circuit comprises:

the clock circuit is used for providing a clock signal for the signal conversion module;

a signal input circuit for receiving the first sound signal;

the control circuit is used for controlling all parts in the signal conversion module to work cooperatively;

the power supply circuit is used for providing operation power support for the signal conversion module;

a first processing circuit for converting a format of the first sound signal;

and the first signal output circuit is used for outputting the first sound signal after the format conversion.

4. The display device according to any one of claims 1 to 3, wherein the converting the format of the first sound signal comprises: converting the format of the first sound signal into an I2S format.

5. The display device according to claim 2, wherein the sound reproducing means includes a power amplifier circuit and a speaker;

the first controller is used for mixing the sound recording signal and the accompaniment signal sent by the microphone to obtain a first sound signal and sending the first sound signal to the signal conversion circuit;

the second controller is configured to send the second sound signal and the selection signal to the signal switching circuit;

the power amplifier circuit is used for amplifying the power of the first sound signal or the second sound signal;

the loudspeaker is used for playing the first sound signal or the second sound signal after power amplification.

6. The display device according to claim 5, wherein the first controller includes a signal receiving circuit, a second processing circuit, and a second signal output circuit; wherein,

the signal receiving circuit is used for receiving the recording signal sent by the microphone;

the second processing circuit is used for mixing the sound of the recording signal and the accompaniment signal to obtain a first sound signal;

the second signal output circuit is used for sending the first sound signal to the signal conversion circuit.

7. The display device according to claim 5 or 6, wherein the second controller is further configured to,

and controlling the power amplifier circuit to mute before the signal switching circuit switches the signal, and controlling the power amplifier circuit to remove the mute after the signal switching circuit switches the signal.

8. The display device according to claim 5, wherein the selection signal comprises a high level signal and a low level signal, wherein,

the high-level signal is used for controlling the signal switching circuit to send the first sound signal to the power amplifier circuit;

and the low level signal is used for controlling the signal switching circuit to send the second sound signal to the power amplifier circuit.

9. A sound processing method for a display device, the display device including a sound processor, a first controller communicatively coupled to a display and the sound processor, a second controller communicatively coupled to the display and the sound processor, and a sound reproduction apparatus, the method for the sound processor comprising:

10. A sound processing method of a display device, the display device including a sound processor, a first controller communicatively connected to a display and the sound processor, a second controller communicatively connected to the display and the sound processor, and a sound reproduction apparatus, the method for the first controller, comprising:

receiving a recording signal sent by a microphone;

11. A sound processing method for a display device, the display device including a sound processor, a first controller communicatively coupled to a display and the sound processor, a second controller communicatively coupled to the display and the sound processor, and a sound reproduction apparatus, the method for the second controller, comprising:

12. The sound processing method according to claim 11, wherein the sound reproducing apparatus includes a power amplifier circuit, and wherein the power amplifier circuit is controlled to mute before the signal switching circuit switches the signal, and wherein the power amplifier circuit is controlled to release the mute after the signal switching circuit switches the signal.

13. The sound processing method according to claim 12, wherein the selection signal includes a high level signal and a low level signal, wherein,