CN105916029A - Audio playing control equipment, video display equipment and audio and video playing system - Google Patents

Abstract

The embodiment of the present application provides an audio playback control device, a video display device, and a playback system. The system includes a main part and a display device. The main part includes a main processor electrically connected to an audio device, and the main processor receives the first An audio and video signal, converting the first audio signal in the first audio and video signal and sending it to the audio device for playback; the main part is connected to the display device through a custom interface, and the first The first video signal among the audio and video signals is converted and sent to the display device for display by the audio and video playback system.

Description

Audio playback control equipment, video display equipment and audio and video playback system

technical field

The embodiments of the present application relate to the field of audio and video technologies, and in particular, to an audio playback control device, a video display device, and an audio and video playback system.

Background technique

The audio and video playback system (such as smart TV) is a new product based on the impact of the Internet wave. Its purpose is to bring users a more convenient experience, and it has become the trend of TV at present. Smart TV is a new TV product with a fully open platform and equipped with an operating system. Users can install and uninstall various application software by themselves while enjoying ordinary TV content, and continuously expand and upgrade functions. Smart TVs can continue to bring users rich and personalized experiences that are different from those using cable digital TV receivers (set-top boxes).

In China, major color TV giants have already begun to explore smart TVs. In addition, smart TV box manufacturers are also following closely behind, and realize the improvement of TV intelligence by installing the Android system on the TV box.

Moreover, smart TVs have application platform advantages that traditional TV manufacturers do not have. After connecting to the network, it can provide various entertainment, information and learning resources such as IE browser, full HD 3D somatosensory games, video calls, family KTV and online education, and can be expanded infinitely. It can also support organizations and individuals, professional and amateur respectively Software enthusiasts independently develop and share tens of thousands of practical software. It will realize various application services such as network search, IP TV, video on demand (VOD), digital music, network news, and network video calls. Users can search for TV channels and websites, record TV programs, and can play satellite and cable TV programs as well as Internet videos. Smart TV will create an open system platform that can load unlimited content and unlimited applications for the majority of users, and can be personalized and installed according to their own needs, so that the TV will never be outdated.

The smart systems used by smart 3D TVs currently on the market can be roughly divided into three categories: Android, Windows and self-built systems by enterprises. For smart video devices equipped with operating systems, no matter what kind of system is used, online software upgrades have become a common application. For example, a system that used Android 2.0 a few years ago has been upgraded to 5.0 or higher. The software system upgrade is closely related to the hardware system. The hardware system that met Android 2.0 at the beginning is no longer suitable for Android 5.0. To upgrade the software at this time, the hardware must be replaced.

FIG. 1 is a schematic structural diagram of an audio and video playback system in the prior art. As shown in Figure 1, external audio and video signals, such as HDMI signals, are sent to the processor, and the processor sends the video signal to the display screen after processing the signal, and the processor sends the audio signal to the audio module after processing the signal. The main processor also controls the display screen. In addition, the audio and video playback system includes Ethernet interface, WIFI and Bluetooth interface, built-in memory module, power management module and so on. In the prior art, the processor and the display screen of the audio and video playback system are integrated, so it is inconvenient to upgrade the processor separately.

In the prior art, the motherboard and the display device of the intelligent video system solution processor are generally assembled into one body. If you want to upgrade the system hardware, you need to disassemble the shell to take out the internal motherboard for replacement. The operation is complicated and the upgrade cost is high. And the cost of simply replacing the whole machine is relatively expensive.

Contents of the invention

Embodiments of the present application provide an audio playback control device, a video display device, and an audio and video playback system, so as to solve the problem of difficulty or high cost in hardware system upgrades in the prior art.

The present application provides an audio playback control device, including: a main processor electrically connected to an audio device, the main processor receives a first audio and video signal, and converts the first audio signal in the first audio and video signal and sent to the audio device for playback;

The main processor is connected to the display device through a custom interface, and converts the first video signal in the first audio-video signal and sends it to the display device for display.

The present application also provides a video display device, the video display device is connected to the main part through a custom interface, receives and displays the first video signal obtained by the main device according to the received first audio and video signal processing, and the The first video signal is processed and displayed.

The present application also provides an audio and video playback system, including a main part and a display device,

The main part includes an electrically connected main processor and audio equipment, the main processor receives the first audio and video signal, converts the first audio signal in the first audio and video signal and sends it to the audio equipment for further processing. play;

The main body part is connected to the display device through a custom interface, and the first video signal in the first audio and video signal is converted and sent to the display device for display.

Audio and video playback system Audio and video playback system The main processor and audio equipment of the audio and video playback system provided in the embodiment of this application constitute the main part of the audio and video playback system. The main processor can convert the received audio and video signals and send them to the audio device, enabling independent audio playback. Therefore, when the main processor is upgraded in the present application, only the main part needs to be upgraded, which reduces the hardware cost of the display device for upgrading. Moreover, the display device of the present application can be connected to different main parts, making the use more flexible.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of audio-video playback system in the prior art;

FIG. 2 is a schematic structural diagram of an embodiment of an audio playback control device of the present application;

FIG. 3 is a schematic structural diagram of another embodiment of an audio playback control device of the present application;

FIG. 4 is a schematic structural diagram of an embodiment of a video display device of the present application;

FIG. 5 is a schematic structural diagram of another embodiment of a video display device of the present application;

FIG. 6 is a schematic structural diagram of another embodiment of a video display device of the present application;

FIG. 7 is a schematic structural diagram of the audio and video playback system of the present application.

detailed description

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

Referring to FIG. 2 , the embodiment of the present application provides an audio playback control device, including: an electrically connected main processor 21 and an audio device 22 audio and video playback system.

In the embodiment of the present application, the audio device 22 in the audio and video playback system may be, but is not limited to, a speaker in the audio and video playback system.

The main processor 21 receives the first audio-video signal, converts the first audio signal in the first audio-video signal and sends it to the audio device 22 for playback.

Specifically, the main processor 21 converts the first audio signal into an I2S signal, and sends it to the audio device 22 for playback.

The main processor 21 is connected to the display device 22 through a custom interface, and converts the first video signal in the first audio and video signals and sends it to the display device for display.

Specifically, the main processor 21 converts the first video signal into HDMI format data and sends it to the display device.

In the embodiment of the present application, when the first audio-video data is input to the control device for audio playback of the present application, the first audio data in the first audio-video data is directly processed by the main processor 21 in the present application, and the main processor 21 is sent to the audio and video playback system audio equipment 22 to play the audio and video playback system. Therefore, the present application can independently play the audio data in the received audio and video data.

In the embodiment of the present application, when the first audio-video data is input to the control device for audio playback of the present application, the first video data in the first audio-video data is directly processed by the main processor 21 in the control device for audio playback of the present application, Then it is sent to the display device 22 for display.

When the main processor of the present application needs to be upgraded, only the present application needs to be upgraded, and the display device connected to the present application does not need to be upgraded, which reduces the hardware cost of the main processor upgrade. Moreover, the display device of the present application can be connected to different audio playback control devices, making the use of the display device 22 more flexible.

In another embodiment of the present application, referring to Fig. 3, the present application also includes:

The audio format conversion bridge 23 is used to receive the second audio signal sent by the display device through the custom interface, and send the converted second audio signal to the main processor 21, and the main processor 21 Send the second audio signal to the audio device 22 for playing.

Specifically, the audio format conversion bridge 23 is an SPD IF to I2S chip, which converts the received SPD IF format audio data into I2S format audio data, and sends the converted I2S format audio data to the main processor 21 , the main processor 21 sends the I2S format audio data to the audio device 22 for playing.

In the embodiment of the present application, when the second audio and video data is input to the display device, the display device sends the second audio data in the received second audio and video data to the audio format conversion bridge 23 of the present application. The audio format conversion bridge 23 performs format conversion on the received second audio data and sends it to the main processor 21 .

The second audio data is processed by the main processor 21 of the present application, and sent to the audio device 22 by the main processor 21 for playback. Therefore, the present application can play the audio data transmitted by the display device.

In the embodiment of the present application, when the second audio and video data is input to the display device, the second video data in the second audio and video data is directly processed and displayed by the display device.

In yet another embodiment of the present application, the main processor 21 is further configured to convert the screen menu adjustment mode data into a third video signal and send it to the display device according to the received input instruction.

In the embodiment of the application, when the user presses the remote control or the button to control the application, the main processor 21 of the application converts the screen menu adjustment mode data (OSD data) generated according to the user input instruction into a third video The data, specifically HDMI format data, is output to a display device for processing and display.

Referring to Fig. 4, the present application also provides a video display device, the video display device 41 is connected to the main part through a custom interface, receives and displays the first video signal obtained by the main device according to the received first audio and video signal processing , and process and display the first video signal.

In the embodiment of the present application, the video display device may be, but is not limited to, a television.

The video display device described in this application is connected to the main body, and the main processor is arranged on the main body. When the main processor needs to be upgraded, only the main part needs to be upgraded, and the application does not need to be upgraded, which reduces the hardware cost of the main processor upgrade. Moreover, the application can be connected with different main parts, making the use of the application more flexible.

In yet another embodiment of the present application, referring to FIG. 5 , the video display device 41 includes: a video processor 411 , a video format conversion bridge 412 , a motion compensation frame rate converter 413 and a display screen 414 .

In this embodiment of the application, when the first audio and video data is input to the main body, the first video data in the first audio and video data is directly processed by the main processor in the main body, and then sent to the application for processing and display.

The video processor 411 receives the first video signal, and sends the processed first video signal to the video format conversion bridge 412, and the video format conversion bridge 412 sends the converted data to the The motion compensation frame rate converter 413 performs frame rate conversion and motion compensation processing, and the data after the frame rate conversion and motion compensation processing is played through the display screen 414 .

Specifically, the video format conversion bridge 412 converts the received first video signal in HDMI format into video data in V-by-One format. The V-by-One format video data output by the video format conversion bridge 412 performs frame rate conversion into high frame rate video data and motion compensation processing, and sends the V-by-One format video data to the display screen 414 for playback .

In yet another embodiment of the present application, referring to FIG. 6 , the video display device further includes a video signal multiple input switch module 415 .

When the second audio and video data is input to the video display device of the present application, the video signal multi-channel input switch module 415 is used to receive the second audio and video signal, and send the second audio and video signal to the video format conversion bridge 412, The video format conversion bridge 412 sends the second video signal in the second audio and video signal to the motion compensation frame rate converter 413 for frame rate conversion and motion compensation processing, the frame rate conversion and motion compensation The processed data is played through the display screen 414 .

Specifically, the video format conversion bridge 412 converts the received first video signal in HDMI format into video data in V-by-One format. The V-by-One format video data output by the video format conversion bridge 412 performs frame rate conversion into high frame rate video data and motion compensation processing, and sends the V-by-One format video data to the display screen 414 for playback .

Therefore, when the second audio and video data is input to the video display device of the present application, the second video data in the second audio and video data is directly processed and displayed by the display device.

In yet another embodiment of the present application, the video format conversion bridge 412 sends the second audio signal in the second audio-video signal to the main body through the self-defined interface.

When the second audio and video data is input to the video display device of this application, the video format conversion bridge 412 outputs the second audio data in SPD IF format, and sends it to the main part through the self-defined interface.

In yet another embodiment of the present application, the video processor 411 receives the third video signal, and sends the format-converted data to the motion compensation frame rate converter 413, and the motion compensation frame rate converter The processed data and the processed data of the second video signal are superimposed and format-converted, and then displayed on the display screen 414 .

In the embodiment of the present application, when the user presses the remote control or the button to control the main part, the main processor of the main part converts the screen menu adjustment mode data (OSD data) generated according to the user input instruction to The third video data in HDMI format is output to the video processor 411 of the present application. The video processor 411 converts the third video data in the HDMI format into LVDS format data, and sends it to the motion compensation frame rate converter 413, and the OSD data and the processed data of the second video signal are superimposed in the motion compensation frame rate converter 413 , and converted into V-by-One format data and sent to the display screen 414 for playback.

FIG. 7 is a schematic structural diagram of the audio and video playback system of the present application. As shown in FIG. 7 , an audio and video playback system of the present application includes: a main processor, a display device, and an audio device, wherein the main processor 110, and the display device include a display screen 40, a video processor 130, and a video format conversion bridge 120 and a frame rate converter for motion compensation 140, the audio equipment includes an audio format conversion bridge 150, the main processor is electrically connected with the audio equipment to form the main part 10 of the audio and video playback system, and the main part 10 is connected to the display device 20 through a custom interface And transmit audio and video data, wherein the processor 110 is respectively coupled to the video format conversion bridge 120 , the video processor 130 and the motion compensation frame rate converter 140 through an I ² C (Inter-Integrated Circuit) bus. Moreover, an Ethernet module 190, a wired and/or wireless communication module 160 (such as a Bluetooth module, a wifi module, a 2.4G communication module, etc.), a power management module 170, a memory module 180 and combinations thereof are also configured in the audio and video playback system One of them is respectively coupled to the main processor 110 .

The main processor 110 is coupled to the first audio and video signal 20 of the audio and video playback system, and is coupled to the audio device through an I ² S (Inter-IC Sound) audio bus (also called an integrated circuit audio bus).

The main processor 110 is used to receive the first audio-video signal, for example, the audio-video signal sent to the main processor 110 from one of the Ethernet module 190 and the wired and/or wireless communication module 160 configured in the audio-video playback system Or it is the first audio and video signal read by the main processor 110 from the memory module 180 .

The main processor 110 sends the first video signal to the video processor 130 of the display device. The first video signal sent by the main processor 110 may be, but not limited to, a mobile high-definition link (MHL) standard signal. ; referred to as MHL), HDMI signal, Low Voltage Differential Signaling (Low Voltage Differential Signaling, LVDS), DP signal (displayport), EDP signal (Embedded DisplayPort), MIPI DSI signal (Mobile IndustryProcessor Interface-Display Serial Interface, mobile industry processor and Display serial interface), logic gate circuit (Transistor-Transistor Logic, TTL; TTL for short) and a combination thereof.

The main processor 110 sends the first audio signal to the audio device, and the main processor 110 is also used to receive the second audio signal sent by the video format conversion bridge 120 and send it to the audio device. The main processor 110 has an on-screen display menu function module , for generating on-screen display menu data, and converting the on-screen display menu data to the video processor 130 .

In addition, the processor 110 is provided with a processing module 112 and an on-screen display menu function module 113 . Wherein, the processing module 112 includes a central processing unit (central processing unit, CPU) 111 and/or a graphics processing unit (graphic processing unit, GPU).

The screen display menu function module 113 is used for generating corresponding screen display menu data according to the operation instruction received by the main processor 110 . For example, in the scene where the menu needs to be used, the main processor 110 controls the screen display menu function module 113 to generate the screen display menu data according to the external input command. The controller transmits a function command requiring display of the control menu to the main processor 110, and the processing module 112 of the main processor 110 informs the screen display menu function module 113 to generate corresponding screen display menu data according to the function command, and transmits it to the video processor 130.

The audio format conversion bridge piece 150 is used to receive the converted second audio signal sent by the video format conversion bridge piece 120, convert and send the converted second audio signal to the main processor 110, and receive through the optical fiber interface SPDIF format audio signal, convert the SPDIF format audio signal received through the optical fiber interface and send it to the main processor.

The video processor 130 is used to receive the first video signal transmitted by the main processor 110, and transmit the accepted first video signal to the video format conversion bridge chip 120, and the video processor 130 is also used to receive the video signal sent by the main processor 110. The converted on-screen display menu data, and the converted on-screen display menu data is sent to the motion compensation frame rate converter 140 .

Video format conversion bridge 120, used to receive the first video signal transmitted by video processor 130, convert the first video signal, and send the converted first video signal to motion compensation frame rate converter 140, video format conversion bridge Sheet 120 is also used for receiving the second audio-video signal, converting the second video signal in the second audio-video signal, and sending the converted second video signal to motion compensation frame rate converter 140, video format conversion bridge sheet 120 It is also used to convert the second audio signal in the second audio-video signal, and send the converted second audio signal to the audio format conversion bridge 150 .

The motion compensation frame rate converter 140 is used to receive the converted first video signal sent by the video format conversion bridge 120, process the converted first video signal into a high-resolution and high frame rate video signal, and transmit it to The display screen 40, the motion compensation frame rate converter 140 is used to receive the converted second video signal sent by the video format conversion bridge 120, and process the converted second video signal into a high-resolution and high frame rate video signal, And transmitted to the display screen 40, the motion compensation frame rate converter 140 is also used to receive the screen display menu data sent by the video processor 130, convert the screen display menu data into a high-resolution and high frame rate video signal and send it to the display screen 40.

The motion compensation frame rate converter 140 is respectively coupled to the video format conversion bridge 120, the video processor 130 and the display screen 40, for receiving the converted first video signal from the video format conversion bridge 120, and based on motion detection and The motion compensation (motion estimation and motion compensation, MEMC) principle performs frame rate conversion (framerate conversion, FRC) on the converted first video signal, thereby processing the converted first video signal into a high-resolution and high frame rate video signal For example, the video content with a refresh rate of 60 Hz is upgraded to a video content with a refresh rate of 120 Hz or 240 Hz, and then the high resolution and high frame rate video signal is transmitted to the display screen 40 for playback, thereby improving the clarity of the moving picture.

It is worth noting that the motion compensation frame rate converter 140 is also used to receive the on-screen display menu data from the video processor 130, and superimpose the received on-screen display menu data with the converted second video signal, and In operation, it is possible to superimpose the on-screen display menu data and the converted video signal first, and then process the second video signal superimposed with the on-screen display menu data into a high-resolution and high frame rate video signal; After the converted second video signal is processed into a high-resolution and high-frame-rate video signal, the screen display menu data is superimposed. The above are only different in the sequence of the superimposing operation, and both can produce a high-definition picture with on-screen display menu data on the display screen 40 , so the above superimposing sequence is not intended to limit the present application. It can be understood that the first audio and video data is converted into, for example, HDMI format data by the main processor and then sent to the video processor. Since the data sent by the main processor 110 to the video processor 130 can be superimposed on the screen display menu data, Specifically, the remote controller transmits a function instruction requiring display of the control menu to the main processor 110, and the processing module 112 of the main processor 110 notifies the screen display menu function module 113 to generate corresponding screen display menu data according to the function instruction. The processor 110 superimposes the on-screen display menu data and the first video signal, and then transmits the first video signal superimposed with the on-screen display menu data to the video processing module 130. 140 superimposed screen display menu data.

The main processor and audio equipment of the audio and video playback system provided by the embodiment of the present application constitute the main part of the audio and video playback system, and the main processor can convert and send the received first audio and video signal to the audio equipment, so that it can play audio. In addition, the embodiment of the present application can selectively receive the first audio and video signal through the main processor, or receive the second audio and video signal through the video format conversion bridge, and select the corresponding processing mode according to the different signal sources, so that This makes the audio and video playback system of the present application not only play audio through the main part alone, but also receive the second audio and video signal sent by the external HDMI signal source. The data format of the video signal is converted by the video format conversion bridge, and the video processing module is used as the transmission medium of the screen display menu data and the first frequency signal, so that the first video signal received by the main processor or the video format conversion bridge The received second video signal can be played on the display screen, and the screen display menu data can be displayed at the same time. In addition, optimizing the converted video signal through the motion compensation frame rate converter can provide high-resolution and high frame rate video signals to the display screen, thereby improving the quality of the display screen and enhancing user experience at the same time.

Further, an audio and video playback system in the embodiment of the present application further includes a video signal multiple input switch module 220 for receiving the second audio and video signal and sending the second audio and video signal to the video format conversion bridge 120 .

The video signal multiple input switch module 220 can receive multiple video signals, and the number of ports for receiving video signals can be selected.

The second audio and video data received by the video signal multiplex input switch module 220 is audio and video data in HDMI format.

Further, the present application embodiment is a kind of audio and video playing system, video processor 130 is provided with the first video format output interface; Motion compensation rate converter 140 is provided with the second video format input interface; And, video format conversion bridge piece 120 is provided with a first video format input interface and a second video format output interface;

Wherein, the first video format input interface of the video format conversion bridge piece 120 is coupled to the first video format output interface of the video processor 130, in order to receive the first video signal of the video processor 130, the video format conversion bridge piece 120 The second video format output interface is coupled to the second video format input interface of the motion compensation frame rate converter 140 for transmitting the converted first video signal to the motion compensation frame rate converter.

The video format conversion bridge 120 is provided with a first video format input interface, a second video format output interface and an audio output interface. The first video format input interface of the video format conversion bridge 120 is coupled to the first video format output interface of the video processor 130 for receiving the first video signal from the video processor 130 . In addition, the second video format output interface of the video format conversion bridge chip 120 is coupled to the second video format input interface of the motion compensation rate converter 140 for transmitting the converted first video signal to the motion compensation frame rate conversion device.

Wherein, the data format of the first video format input interface 121 of the video format conversion bridge piece 120 is identical with the data format of the first video format output interface of the video processor 130, for example, is also the HDMI data format; The data format of the second video format output interface is different from the data format of the first video format output interface of the video processor 130 , such as a V-by-One data format. It can be understood that, since the second video format output interface of the video format conversion bridge 120 and the second video format input interface of the motion compensation frame rate converter 140 are video signal output interfaces and video signal input interfaces corresponding to the data format, Therefore, in this embodiment, the data format of the second video format input interface of the motion compensation frame rate converter 140 is also the V-by-One data format.

The first-format audio signal output interface of the video format conversion bridge is coupled to the first-format audio signal input interface of the audio format conversion bridge 150 , and sends the second audio signal to the audio format conversion bridge 150 .

Further, the embodiment of the present application is an audio and video playback system, the main processor 110 is provided with a screen menu output interface; the video processor 130 is provided with a screen menu input interface and a screen menu output interface; the motion compensation frame rate converter is provided with a screen menu input interface; wherein, the screen menu input interface of the video processor 130 is coupled to the screen menu output interface of the main processor 110 to receive the screen display menu data converted by the main processor 110, and the motion compensation frame rate converter The on-screen menu input interface is coupled to the on-screen menu output interface of the video processor 130 for receiving the on-screen display menu data converted by the video processor 130 .

Further, the embodiment of the present application is an audio and video playback system, the video format conversion bridge 120 is provided with a first format audio signal output interface; the audio format conversion bridge 150 is provided with a first format audio signal input interface and a second format audio signal Signal output interface; the main processor 110 is provided with a second format audio signal input interface; wherein, the first format audio signal input interface of the audio format conversion bridge piece 150 is coupled to the first format audio signal output of the video format conversion bridge piece 120 The interface is used to receive the second audio signal, the audio format conversion bridge 150 second format audio signal output interface is coupled to the second format audio signal input interface of the main processor 110, and the user sends the converted second audio signal to main processor 110 .

The second format audio signal output interface of the audio format conversion bridge 150 is coupled to the main processor 110 through the I2S bus, so that after the video format conversion bridge 120 converts the format of the received second audio signal, the converted The second audio signal is transmitted to the audio format conversion bridge 150 and then converted by the audio format conversion bridge 150 and sent to the main processor 110 so as to be provided to the audio device 30 for playback. For example, after the second audio signal in the HDMI data format is converted into an external audio signal in the I2S data format, it is sent to the main processor 110 through the I2S bus; or in some cases, first the external audio signal in the HDMI data format The signal is converted to SPDIF data format, and then converted from SPDIF data format to I2S data format, and then sent to the main processor 110 .

In addition, the audio format conversion bridge 150 can also receive the SPDIF format audio signal through the optical fiber interface, convert the SPDIF format audio signal received through the optical fiber interface into I2S format audio data and send it to the main processor, and the main processor sends it to the audio device for further processing. play. It can be understood that the audio device may include a power amplifier, a speaker, etc., which are not shown in the drawings for the sake of clarity.

Further, the embodiment of the present application is an audio and video playback system, the first video format is one of MHL, HDMI, LVDS, DP, EDP, MIPI DSI, TTL and combinations thereof.

The specific first video format may be mobile high-definition link (MHL; MHL for short), HDMI signal, Low Voltage Differential Signaling (LowVoltage Differential Signaling, LVDS), DP signal (display port), EDP signal ( Embedded DisplayPort), MIPI DSI signal (Mobile Industry Processor Interface-Display Serial Interface, mobile industry processor and display serial interface), logic gate circuit (Transistor-Transistor Logic, TTL; TTL for short) and one of its combinations

Further, the embodiment of the present application is an audio and video playback system, and the second video format is V-by-One.

The v-by-one interface is mainly used in large-screen display and camera security. The v-by-one interface means "video by one", that is, through "one line" to transmit low-voltage differential small computer system interface signals (full name low voltage differential SCSI, LVDS for short) or transistor-transistor logic (full name TransistorTransistorLogIC , referred to as TTL) signal, in layman's terms is to reduce the printed circuit board (full name Printed Circuit Board, referred to as PCB) wiring, so the application on the large screen is particularly prominent.

Further, the embodiment of the present application is an audio and video playback system, and the audio and video playback system is a TV, wherein the first audio and video signal is the TV signal source received by the main processor 110, the signal source from the Internet, and the The signal source or the audio and video signal source of the audio-visual device externally connected to the audio and video playback system, such as SD card data or USB data, the second audio and video signal is the HDMI signal source received by the video format conversion bridge in the video system through the HDMI signal source .

Further, the embodiment of the present application is an audio and video playback system, a motion compensation frame rate converter, which is used to superimpose the converted second video signal and the screen display menu data

The motion compensation frame rate converter 140 is respectively coupled to the video format conversion bridge piece 120, the video processor 130 and the display screen 40, in order to receive the converted first video signal or the converted second video signal from the video format conversion bridge piece 120. Video signal, and based on motion detection and motion compensation (motionestimation and motion compensation, MEMC) principle, frame rate conversion (frame rate conversion, FRC) is performed on the converted main video signal or converted external video signal, so that the converted The first video signal or the converted second video signal is processed into a high-resolution and high frame rate video signal, for example, video content with a refresh rate of 60 Hz is upgraded to a video content with a refresh rate of 120 Hz or 240 Hz, and then the high-resolution and the high frame rate video signal are transmitted to the display screen 40 for playback, thereby improving the clarity of the moving picture.

It is worth noting that the motion compensation frame rate converter 140 is also used to receive the on-screen display menu data from the video processor 130, and superimpose the received on-screen display menu data with the converted second video signal, and In the superposition operation, the superimposition of the screen display menu data and the converted second video signal can be performed first, and then the second video signal superimposed with the screen display menu data is processed into a high-resolution and high frame rate video signal; or After the converted second video signal is processed into a high resolution and high frame rate video signal, the screen display menu data is superimposed. The above are only different in the sequence of the superimposing operation, and both can produce a high-definition picture with on-screen display menu data on the display screen 40 , so the above superimposing sequence is not intended to limit the present application.

Further, an audio and video playback system according to an embodiment of the present application is characterized in that it further includes a power management module and a memory module coupled to the main processor 110 .

The main processor 110 is coupled with the video processor 130 , the video format conversion bridge 120 and the audio system including the audio format conversion bridge 150 through the I2C interface, and communicates with them.

The operation of the audio and video playback system disclosed in the embodiment of the present application will be illustrated below through a specific implementation manner.

When the first audio and video data is played by the main processor;

For the audio and video played by the main processor, the first audio and video data is converted into HDMI format data output, and the audio data is converted into I2S and sent to the audio device for playback. The HDMI format data output of the main processor is sent to the video processor, and the video processor outputs the HDMI format data. The video processor outputs HDMI format data to the HDMI to V-by-One bridge, and the HDMI to V-by-One bridge outputs the first audio and video data in V-by-One format. The first audio and video data in V-by-One format output by the HDMI to V-by-One bridge chip is sent to the FRC/MEMC chip for frame rate conversion into high frame rate audio and video data and motion compensation processing, and V- The by-One format is sent to the display screen for playback.

The operation of the audio and video playback system disclosed in the embodiment of the present application will be illustrated below through another specific implementation manner.

When the second audio and video data is input by the video signal multi-channel input switch module 220HDMI interface, the second audio and video signal is an audio and video signal in HDMI format, which is input by the multi-channel input switch module HDMI, and the HDMI multi-channel switch can connect multiple HDMI For input, generally 2-3 ports are open to customers. The HDMI format data is sent to the HDMI to V-by-One bridge by the HDMI multi-channel switch, and the second audio and video data is converted into V-by-One format data in the HDMI to V-by-One bridge; HDMI to V- The V-by-One format second audio and video data output by the by-One bridge chip is sent to the FRC/MEMC chip for frame rate conversion into high frame rate audio and video data and motion compensation processing, and the V-by-One format Send it to the display to play.

Its audio data outputs SPDIF format audio data in the HDMI to V-by-One bridge chip, and sends it to the SPD IF to I2S chip in the audio system through the custom connection line between the main part of the audio and video playback system and the display device part , and convert SPDIF format audio data into I2S format audio data and send it to the main processor, and the main processor outputs I2S data to the audio device for playback.

When the user presses the remote control or the button to control, the OSD data of the menu is converted into HDMI format by the main processor for output, and sent to the video processor, and the video processor converts the HDMI format data into LVDS format data Send to FRC/MEMC chip, OSD data and second video data are superimposed in FRC/MEMC chip, and converted into V-by-One format data and sent to the display screen for playback.

The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative effort.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic discs, optical discs, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims (15)

1. A control device for audio playback, comprising: an electrically connected main processor and an audio device, the main processor receives the first audio-video signal, and converts the first audio-video signal in the first audio-video signal The audio signal is converted and sent to the audio device for playback; The main processor is connected to the display device through a custom interface, and converts the first video signal in the first audio-video signal and sends it to the display device for display. 2. The control device for audio playback according to claim 1, further comprising: The audio format conversion bridge is used to receive the second audio signal sent by the display device through the custom interface, and send the converted second audio signal to the main processor, and the main processor converts the second audio signal to the main processor. The second audio signal is sent to the audio device for playback. 3. The control device for audio playback according to claim 1, wherein the main processor is further configured to send the third video signal in the screen menu adjustment mode data to the said main processor according to the input instruction received. display screen. 4. A video display device, characterized in that, the video display device is connected to the main body through a self-defined interface, receives and displays the first video signal obtained by the main device according to the received first audio and video signal processing, and The first video signal is processed and displayed. 5. The video display device according to claim 4, wherein the video display device comprises: a video processor, a video format conversion bridge, a motion compensation frame rate converter and a display screen, The video processor receives the first video signal, and sends the processed first video signal to the video format conversion bridge chip, and the video format conversion bridge chip sends the converted data to the motion compensation The frame rate converter performs frame rate conversion and motion compensation processing, and the data after the frame rate conversion and motion compensation processing is played through the display screen. 6. The video display device according to claim 5, characterized in that, the video display device also includes a video signal multi-channel input switch module, in order to receive the second audio and video signal, and send the video format to the video format conversion bridge chip. The second audio and video signal, the video format conversion bridge chip sends the second video signal in the second audio and video signal to the motion compensation frame rate converter for frame rate conversion and motion compensation processing, the frame The data processed by rate conversion and motion compensation are played through the display screen. 7. The video display device according to claim 6, characterized in that, The video format conversion bridge piece sends the second audio signal in the second audio-video signal to the main part through the self-defined interface. 8. The video display device according to claim 7, wherein the video processor receives the third video signal, and sends the format-converted data to the motion compensation frame rate converter, the The motion compensation frame rate converter superimposes and converts the processed data and the processed data of the second video signal, and then displays them on the display screen. 9. An audio and video playback system, characterized in that it includes a main body and a display device, The main part includes an electrically connected main processor and audio equipment, the main processor receives the first audio and video signal, converts the first audio signal in the first audio and video signal and sends it to the audio equipment for further processing. play; The main body part is connected to the display device through a custom interface, and the first video signal in the first audio and video signal is converted and sent to the display device for display. 10. audio and video playback system according to claim 9, is characterized in that, described main part also comprises: The audio format conversion bridge is used to receive the second audio signal sent by the display device through the custom interface, and send the converted second audio signal to the main processor, and the main processor converts the second audio signal to the main processor. The second audio signal is sent to the audio device for playback. 11. The audio and video playback system according to claim 9, wherein the main processor is further configured to send the third video signal in the screen menu adjustment mode data to the display according to the input instruction received. equipment. 12. The audio and video playback system according to claim 9, wherein the display device comprises: a video processor, a video format conversion bridge, a motion compensation frame rate converter and a display screen, The video processor receives the first video signal, and sends the processed first video signal to the video format conversion bridge chip, and the video format conversion bridge chip sends the converted data to the motion compensation The frame rate converter performs frame rate conversion and motion compensation processing, and the data after the frame rate conversion and motion compensation processing is played through the display screen. 13. The audio and video playback system according to claim 12, wherein the display device also includes a video signal multi-channel input switch module for receiving the second audio and video signal, and sending the video format conversion bridge to the video format conversion bridge. The second audio and video signal, the video format conversion bridge chip sends the second video signal in the second audio and video signal to the motion compensation frame rate converter for frame rate conversion and motion compensation processing, the frame The data processed by rate conversion and motion compensation are played through the display screen. 14. audio and video playback system according to claim 13, is characterized in that, The video format conversion bridge piece sends the second audio signal in the second audio-video signal to the main part through the self-defined interface. 15. The audio and video playback system according to claim 14, wherein the video processor receives the third video signal, and sends the format-converted data to the motion compensation frame rate converter, so The motion compensation frame rate converter superimposes and converts the format of the processed data and the processed data of the second video signal, and displays them on the display screen.