WO2017101361A1

WO2017101361A1 - Audio playback control device, video display device and audio and video playback system

Info

Publication number: WO2017101361A1
Application number: PCT/CN2016/088793
Authority: WO
Inventors: 刘伟
Original assignee: 乐视控股（北京）有限公司; 乐视致新电子科技（天津）有限公司
Priority date: 2015-12-18
Filing date: 2016-07-06
Publication date: 2017-06-22
Also published as: CN105916029A

Abstract

An audio playback control device, a video display device and a playback system. The system comprises a main part and a display device. The main part comprises a main processor and an audio device which are electrically connected. The main processor receives first audio and video signals, and converts and transmits a first audio signal of the first audio and video signals to the audio device to be played. The main part is connected with the display device through a self-defined interface and converts and transmits a first video signal of the first audio and video signals to the display device to display the audio and video playback system.

Description

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

This application claims the priority of the Chinese Patent Application entitled "Audio Playback Control Device, Video Display Device, and Audio Video Playback System" submitted by the Chinese Patent Office on December 18, 2015, with the application number 201510958715.2. This is incorporated herein by reference.

Technical field

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

Background technique

Audio and video playback systems (such as smart TVs) are new products based on the impact of the Internet wave. One of the purposes is to bring users a more convenient experience, which has become a trend of TV. Smart TV is a new TV product with a fully open platform and an operating system. Users can install and uninstall various application software while continuing to appreciate and upgrade their functions while enjoying ordinary TV content. Smart TVs continue to give users a rich, personalized experience that is different from cable digital TV receivers (set-top boxes).

In China, major color TV giants have already begun to explore smart TV. In addition, smart TV box manufacturers are also following, and the TV box is equipped with Android system to realize intelligent TV upgrade.

Moreover, smart TV has the advantage of an application platform that traditional TV manufacturers do not have. After connecting to the Internet, it can provide IE (Internet Explorer) browser, full HD 3D (3dimension) somatosensory games, video calls, family KTV (Karaoke Television) and education online and other entertainment, information, learning resources, and can be expanded infinitely. It can also support organizations and individuals, professional and amateur software enthusiasts to independently develop and share tens of thousands of useful functional software. It will implement various application services such as network search, IP (Internet Protocol) TV, video on demand (VOD, VideoOnDemand), digital music, online news, network video telephony and so on. Users can search for TV channels and websites, record TV shows, and play satellite and cable TV programs as well as online video. Smart TV will create an open system platform for users to load unlimited content and unlimited applications, and can be personalized according to their needs, so that TV will never go out of style.

The intelligent systems currently used in smart 3D TVs can be broadly classified into three categories: Android, Windows and enterprise self-built systems. For intelligent video devices with operating systems, online software upgrades have become a common application regardless of the system. For example, a system that used Android 2.0 a few years ago has been upgraded to 5.0 or higher. Software system upgrades and hardware systems are closely related. The hardware system that satisfies Android 2.0 was not suitable for Android 5.0. At this point, you must replace the hardware to perform a software upgrade.

1 is a schematic structural diagram of an audio and video playback system of the prior art. According to FIG. 1, an external audio and video signal, such as an HDMI (High Definition Multimedia Interface) signal, is transmitted to the processor, and the processor transmits the video signal to the display screen after the signal processing, and the processor processes the audio signal after the signal processing. The audio module is transmitted to the audio module, and the main processor also controls the display. In addition, the audio and video playback system includes an Ethernet interface, a WIFI (Wireless Fidelity), and a Bluetooth interface, and has a built-in memory module and a power management module. The prior art audio and video playback system processor and display are integrated, so it is not convenient to separately upgrade the processor.

In the process of implementing the present application, the inventor has found that the motherboard and display device of the intelligent video system solution processor in the prior art are generally assembled into one body. If the system hardware upgrade is required, the inner motherboard can be taken out for replacement, and the operation is complicated. The upgrade cost is higher. The simple replacement of the whole machine is more expensive.

Summary of the invention

In view of this, one of the technical problems to be solved by the embodiments of the present application is to provide a control device for audio playback, a video display device, and an audio and video playback system, which are used to solve the problem of difficulty in upgrading a hardware system or high cost in the prior art.

The embodiment of the present application further provides a control device for audio playback, including: an electrically connected main processor and an audio device, where the main processor receives the first audio and video signal, and the first of the first audio and video signals Audio signals are converted and sent to the audio device for playback;

The main processor and the display device are connected through a custom interface, and convert the first video signal in the first audio and video signal to the display device for display.

The embodiment of the present application further provides a video display device, where the video display device is connected to the main body through a custom interface, and receives and displays a first video signal obtained by the main device according to the received first audio and video signal, and The first video signal is processed and displayed.

The embodiment of the present application further provides an audio and video playing system, including a main body portion and a display device.

The main body portion includes an electrically connected main processor and an audio device, and the main processor receives the first An audio and video signal, converting and transmitting the first audio signal of the first audio and video signal to the audio device for playing;

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

The main processor and the audio device of the audio and video playing system provided by the embodiment of the present application constitute a main part of the audio and video playing system, and the main processor can convert the received audio and video signal to the audio device. Thereby the audio can be played independently. Therefore, when the main processor is upgraded, the main part needs to be upgraded, which reduces the hardware cost of the display device to perform upgrade processing. Moreover, the present application shows that the device can be connected to different body parts, and the use is more flexible.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only These are some of the embodiments described in this application, and other figures can be obtained from those of ordinary skill in the art in view of these drawings.

1 is a schematic structural diagram of an audio and video playback system in the prior art;

2 is a schematic structural diagram of an embodiment of a control device for audio playback according to the present application;

3 is a schematic structural diagram of another embodiment of a control apparatus for audio playback according to the present application;

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

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

6 is a schematic structural diagram of still another embodiment of a video display device according to the present application;

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

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application. It is a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

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

In the embodiment of the present application, the audio device 22 of the audio and video playing system may be, but not limited to, an audio and video playing system speaker.

The main processor 21 receives the first audio and video signal, converts and transmits the first audio signal of the first audio and video signal to the audio device 22 for playing.

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

The main processor 21 and the display device 22 are connected through a custom interface, and convert and send the first video signal in the first audio and video signal to the display device for display.

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

In the embodiment of the present application, when the first audio and video data is input to the control device for audio playback in the embodiment of the present application, the first audio data in the first audio and video data is directly processed by the main processor 21 in the embodiment of the present application, and The main processor 21 transmits to the audio and video playback system audio device 22 to play the audio and video playback system. Therefore, the embodiment of 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 and video data is input to the control device for audio playback in the embodiment of the present application, the first video data in the first audio and video data is directly used by the main processor in the control device for playing audio in the embodiment of the present application. Processing is performed 21 and then sent to display device 22 for display.

In the embodiment of the present application, when the main processor needs to be upgraded, the application process only needs to be upgraded, and the display device connected to the embodiment of the present application is not required to be upgraded, thereby reducing the hardware cost of the main processor upgrade processing. Moreover, the display device of the embodiment of the present application can connect different control devices for audio playback, so that the use of the display device 22 is more flexible.

In another embodiment of the present application, referring to FIG. 3, the embodiment of the present application further includes:

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

Specifically, the audio format conversion bridge 23 is an SPDIF (Sony/Philips Digital Interconnect Format) to I2S (Inter-IC Sound) chip, and converts the received SPDIF format audio data into I2S format audio data, and converts the converted data. I2S format audio data is sent to the main processor 21, and the main processor 21 transmits the I2S format audio data to the audio device 22 to play.

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 of the received second audio and video data to the audio format conversion bridge of the embodiment of the present application. twenty three. The audio format conversion bridge 23 performs format conversion on the received second audio data and sends the received audio data to the main processor 21.

The second audio data is processed by the main processor 21 of the embodiment of the present application, and sent by the main processor 21 to the audio device 22 for playing. Therefore, the embodiment of the present application can play 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 still another embodiment of the present application, the main processor 21 is further configured to convert the on-screen menu mode data to a third video signal to the display device according to the received input command.

In the embodiment of the present application, when the user controls the embodiment of the present application by pressing the remote controller or the button, the main processor 21 according to the embodiment of the present application will adjust the screen menu mode data (OSD data, on the basis of the user input instruction). The -screen display data is converted into the third video data, specifically the HDMI format data, which is output to the display device for processing and display.

Referring to FIG. 4, the embodiment of the present application further provides a video display device. The video display device 41 is connected to the main body through a custom interface, and receives and displays the first obtained by the main device according to the received first audio and video signal. a video signal and processing and displaying the first video signal.

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

The video display device of the embodiment of the present application is connected to the main body portion, and the main processor is disposed in the main body portion. When the main processor needs to be upgraded, only the main part needs to be upgraded, and the embodiment of the present application is not required to be upgraded, thereby reducing the hardware cost of the main processor upgrade processing. Moreover, the embodiments of the present application can connect different main parts, which makes the use of the embodiments of the present application more flexible.

In still 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 compensated frame rate converter 413, and a display screen 414.

In the embodiment of the present application, when the first audio and video data is input to the main body portion, the first audio and video data The first video data is processed directly by the main processor in the main body portion and then sent to the embodiment of the present 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 frame rate conversion and motion compensation processed data is played through the display screen 414.

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

In still 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 embodiment of the present application, the video signal multiple input switch module 415 is configured to receive the second audio and video signal, and send the second audio and video to the video format conversion bridge 412. a video format conversion bridge 412 that transmits a second video signal of 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 The motion compensated processed data is played through the display screen 414.

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

In still another embodiment of the present application, the video format conversion bridge 412 transmits a second audio signal of the second audio and video signals to the main body portion through the custom interface.

When the second audio and video data is input to the video display device of the embodiment of the present application, the video format conversion bridge 412 outputs the second audio data in the SPDIF format, and is sent to the main body through the custom interface.

In still another embodiment of the present application, the video processor 411 receives the third video signal, and Transmitting the formatted data to the motion compensation frame rate converter 413, and the motion compensation frame rate converter superimposes and formats the processed data and the data processed by the second video signal, and then passes The display screen 414 is displayed.

In the embodiment of the present application, when the user controls the main body portion by pressing a remote controller or a button, the main processor of the main body portion converts the on-screen menu adjustment mode data (OSD data) generated according to the user input instruction. The third video data for the HDMI format is output to the video processor 411 of the embodiment of the present application. The video processor 411 converts the third video data of the HDMI format into LVDS (Low-Voltage Differential Signaling) format data, and sends it to the motion compensation frame rate converter 413. The processed data of the OSD data and the second video signal are motion compensated. The frame rate converter 413 is superimposed 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 an embodiment of an audio and video playing system of the present application. According to FIG. 7 , an audio and video playback system includes: a main processor, a display device, and an audio device, where the main processor 110 includes a display screen 40, a video processor 130, and a video format conversion. The bridge chip 120 and the motion compensation frame rate converter 140, the audio device includes an audio format conversion bridge 150, the main processor is electrically connected with the audio device to form a main body portion 10 of the audio and video playback system, and the main body portion 10 and the display device 20 are customized. The interface is connected to and transmits audio and video data. The processor 110 is coupled to the video format conversion bridge 120, the video processor 130, and the motion compensation frame rate converter 140 through an I2C (Inter-Integrated Circuit) bus. Moreover, an Ethernet module 190, a wired and/or wireless communication module 160 (eg, 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 further disposed in the audio and video playback system. One of them is 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 I2S (Inter-IC Sound) audio bus (also referred to as an integrated circuit built-in audio bus).

The main processor 110 is configured to receive the first audio and video signals, for example, audio and video signals transmitted from the Ethernet module 190 and the wired and/or wireless communication module 160 disposed in the audio and video playback system to the main processor 110. Or 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 is not limited to, a mobile high-definition link (MHL). ; referred to as MHL), HDMI signal, low voltage differential signal No. (Low Voltage Differential Signaling, LVDS), DP signal (Embedded DisplayPort), MIPI DSI signal (Mobile Industry Processor Interface-Display Serial Interface), logic gate One of the circuits (Transistor-Transistor Logic, TTL; TTL for short) and its combination.

The main processor 110 transmits the first audio signal to the audio device, and the main processor 110 is further configured to receive the second audio signal sent by the video format conversion bridge 120 and send the same to the audio device, and the main processor 110 has a screen display menu function module. The screen display menu data is generated, and the screen display menu data is converted and sent to the video processor 130.

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

The screen display menu function module 113 is configured to generate corresponding screen display menu data according to the operation instruction received by the main processor 110. For example, in a scenario in which a menu is required to be used, the main processor 110 controls the screen display menu function module 113 to generate screen display menu data according to an external input command, for example, in a scenario where the audio and video playback system of the embodiment of the present application is a television. The function instruction requesting to display the control menu is transmitted to the main processor 110 through the remote controller, and the processing module 112 of the main processor 110 instructs the screen display menu function module 113 to generate corresponding screen display menu data according to the function instruction, and transmits the video to the video. Processor 130.

The audio format conversion bridge 150 is configured to receive the converted second audio signal sent by the video format conversion bridge 120, convert and transmit the converted second audio signal to the main processor 110, and receive through the optical fiber interface. The SPDIF format audio signal will be converted to the SPDIF format audio signal through the fiber interface and sent to the host processor.

The video processor 130 is configured to receive the first video signal transmitted by the main processor 110, and transmit the received first video signal to the video format conversion bridge 120, where the video processor 130 is further configured to receive the main processor 110. The converted screen displays menu data and converts the screen display menu data to the motion compensated frame rate converter 140.

The video format conversion bridge 120 is configured to receive the first video signal transmitted by the video processor 130, convert the first video signal, and send the converted first video signal to the motion compensation frame rate converter 140, and the video format conversion bridge The slice 120 is further configured to receive the second audio and video signal, convert the second video signal of the second audio and video signal, and send the converted second video signal to the motion compensation The frame rate converter 140, the video format conversion bridge 120 is further configured to convert the second audio signal in the second audio and video signal, and send the converted second audio signal to the audio format conversion bridge 150.

The motion compensation frame rate converter 140 is configured 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 the The display screen 40, the motion compensation frame rate converter 140 is configured 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 further configured to receive the screen display menu data sent by the video processor 130, convert the screen display menu data into high resolution and high frame rate video signals and transmit to the display screen 40.

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

It should be noted that the motion compensation frame rate converter 140 is further configured to receive screen display menu data from the video processor 130, and superimpose the received screen display menu data and the converted second video signal, and superimpose In operation, the screen display menu data and the converted video signal may be superimposed 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 is only the order of the superimposing operations, and can produce a high definition picture with screen display menu data on the display screen 40, so the above superimposed order 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, and the screen display menu data can be superimposed due to the data sent by the main processor 110 to the video processor 130. Specifically, the function instruction for displaying the control menu is transmitted to the main processor 110 by the remote controller, and the processing module 112 of the main processor 110 according to the function instruction notifies the screen display menu function module 113 to generate corresponding screen display menu data, the main Processor 110 will The screen display menu data is superimposed with the first video signal, and then the first video signal superimposed with the screen display menu data is transmitted to the video processing module 130. Therefore, there is no need to superimpose the screen display in the motion compensation frame rate converter 140 at this time. Menu data.

The main processor and the audio device of the audio and video playing system provided by the embodiment of the present application constitute a main part of the audio and video playing system, and the main processor can convert the received first audio and video signal to the audio device, thereby being able to play independently. Audio. In addition, the embodiment of the present application may 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 a corresponding processing mode according to different signal sources, thereby The audio and video playing system of the embodiment of the present application can simultaneously play audio through the main body portion and receive the second audio and video signal sent by the external HDMI signal source. The video format conversion is performed by the video format conversion bridge chip, 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 or the video format conversion bridge chip received by the main processor is used. The received second video signal can be played on the display screen while presenting the screen display menu data. In addition, the converted video signal is optimized by the motion compensated frame rate converter to provide high resolution and high frame rate video signals to the display, thereby improving the quality of the display and enhancing the user experience.

Specifically, the audio and video playing system of the present application further includes a video signal multiple input switch module 220 for receiving the second audio and video signal and transmitting the second audio and video signal to the video format switching bridge 120.

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

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

Specifically, an audio and video playing system is provided in the embodiment of the present application, the video processor 130 is provided with a first video format output interface; the motion compensated rate converter 140 is provided with a second video format input interface; and the video format conversion bridge 120 is provided with a first video format input interface and a second video format 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 of the video processor 130, and the video format conversion bridge 120 The second video format output interface is coupled to the motion compensated rate converter A second video format input interface of 140 is configured to transmit the converted first video signal to a motion compensated 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 of the video processor 130. In addition, the second video format output interface of the video format conversion bridge 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 compensated frame rate conversion. Device.

The data format of the first video format input interface 121 of the video format conversion bridge 120 is the same as the data format of the first video format output interface of the video processor 130, for example, also the HDMI data format; the video format conversion bridge 120 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 the V-by-One data format. It can be understood that, because 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 the video signal output interface and the video signal input interface corresponding to the data format, Therefore, in the present 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 the second audio signal is sent to the audio format conversion bridge 150.

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

Specifically, the video format conversion bridge 120 is provided with a first format audio signal output interface, and the audio format conversion bridge 150 is provided with a first format audio signal input interface and a second format audio. Signal output interface; main processor 110 is provided with second format audio The first format audio signal input interface of the audio format conversion bridge 150 is coupled to the first format audio signal output interface of the video format conversion bridge 120, and is configured to receive the second audio signal, and the audio format conversion bridge The slice 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 the 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 for converting the received second audio signal after the video format conversion bridge 120 is formatted. The second audio signal is transmitted to the audio format conversion bridge 150 and then converted by the audio format conversion bridge 150 to be transmitted to the main processor 110 for playback to the audio device 30 for playback. For example, after converting the second audio signal of the HDMI data format into an external audio signal of the I2S data format, it is transmitted to the main processor 110 through the I2S bus; or in some cases, the external audio of the HDMI data format is first used. The signal is converted to the SPDIF data format, and then converted from the SPDIF data format to the I2S data format, and then transferred 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, and convert the SPDIF format audio signal through the optical fiber interface into the I2S format audio data and send it to the main processor, and the main processor sends the audio signal to the audio device. Play. It will be appreciated that the audio device may include a power amplifier and a speaker, etc., which are more prominent for illustration, not shown in the drawings.

Specifically, the embodiment of the present application is an audio and video playing system, and the first video format is one of MHL, HDMI, LVDS, DP, EDP, MIPI DSI, TTL, and a combination thereof.

Specifically, the first video format may be a mobile high-definition link (MHL; MHL for short), an HDMI signal, a low voltage differential signaling (LVDS), a DP signal (display port), an EDP. One of the signals (Embedded DisplayPort), MIPI DSI signal (Mobile Industry Processor Interface-Display Serial Interface), and Transistor-Transistor Logic (TTL)

Specifically, the embodiment of the present application is an audio and video playing system, and the second video format is V-by-One. The v-by-one interface is mainly used for large screen display and camera security. The v-by-one interface means “video by one”, which means “low-voltage differential SCSI (LVDS) or transistor-transistor logic (full name TransistorTransistorLogIC) transmitted through “one line”. , referred to as TTL) signal, popularly speaking, it is reduced Brushed circuit board (full name Printed Circuit Board, referred to as PCB) wiring, so the application on the large screen is particularly prominent.

Specifically, an audio and video playing system is used in the embodiment of the present application, where the audio and video playing system is a television set, wherein the first audio and video signal is a television signal source received by the main processor 110, a signal source from the Internet, and a local end downloaded. A source of audio and video signals from a signal source or an audio/video playback system, such as SD card (Secure Digital Memory Card) data or USB (Universal Serial Bus) data, and the second audio and video signal is a video format conversion in a video system. The HDMI signal source that the bridge receives through the HDMI source.

Specifically, an audio and video playing system, a motion compensation frame rate converter, is configured to superimpose and convert the second video signal and the screen display menu data.

The motion compensation frame rate converter 140 is coupled to the video format conversion bridge 120, the video processor 130, and the display screen 40 for receiving the converted first video signal or the converted second video from the video format conversion bridge 120. Video signal, and frame rate conversion (FRC) is performed on the converted main video signal or the converted external video signal based on the motion estimation and motion compensation (MEMC) principle, thereby converting 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 from a normal 60 Hz refresh rate to a 120 Hz or 240 Hz refresh rate video content, and then this high resolution The rate and high frame rate video signals are transmitted to the display screen 40 for playback, thereby improving the clarity of the moving picture.

It should be noted that the motion compensation frame rate converter 140 is further configured to receive screen display menu data from the video processor 130, and superimpose the accepted screen display menu data with the rotated second video signal, and In the superimposing operation, the superposition of the screen display menu data and the converted second video signal may be performed, 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 processing the converted second video signal into a high resolution and high frame rate video signal, the screen display menu data is superimposed. The above is only the order of the superimposing operations, and can produce a high definition picture with screen display menu data on the display screen 40, so the above superimposed order is not intended to limit the present application.

Specifically, an audio and video playing system of the embodiment of the present application further includes a power management module and a memory module coupled to the main processor 110.

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

The operation mode of the audio and video playing system disclosed in the embodiment of the present application is exemplified in the following.

When the first audiovisual data is played by the main processor;

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 playing. The main processor's HDMI format data output 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 the V-by-One format. The first audio and video data of the V-by-One format output from the HDMI to V-by-One bridge chip is sent to the FRC/MEMC chip, and the frame rate conversion is converted into high frame rate audio and video data and motion compensation processing, and V- The by-One format is sent to the display.

The operation mode of the audio and video playing system disclosed in the embodiment of the present application is exemplified by another specific embodiment.

When the second audio and video data is input by the video signal multi-input switch module 220 HDMI interface, the second audio and video signal is an HDMI format audio and video signal, which is input by the multi-input switch module HDMI, and the HDMI multi-way switch can connect multiple HDMI 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-way 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 second audio and video data of the V-by-One format output by the By-One bridge chip is sent to the FRC/MEMC chip, and the frame rate conversion is converted into high frame rate audio and video data and motion compensation processing, and the V-by-One format is adopted. Send it to the display.

The audio data is outputted in the HDMI to V-by-One bridge chip, and the SPDIF format audio data is sent to the SPDIF to I2S chip in the audio system through a custom connection between the main part of the audio and video playback system and the display device. The SPDIF format audio data is converted into I2S format audio data and sent to the main processor, and the main processor outputs the I2S data to the audio device for playing.

When the user presses the remote controller or the button to control, the OSD data of the menu is converted by the main processor into the HDMI format output and sent to the video processor, and the video processor converts the HDMI format data into the LVDS format data. The FRC/MEMC chip is sent, and the OSD data and the second video data are superimposed in the 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 merely illustrative, wherein the modules described as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical modules, ie may be located A place, or it can be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

Through the description of the above embodiments, those skilled in the art can clearly understand that the various embodiments can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware. Based on such understanding, the above-described technical solutions may be embodied in the form of software products in essence or in the form of software products, which may be stored in a computer readable storage medium such as ROM/RAM, magnetic Discs, optical discs, etc., include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments or portions of the embodiments.

Finally, it should be noted that the above embodiments are only used to explain the technical solutions of the present application, and are not limited thereto; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced by the equivalents. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

A control device for audio playback, comprising: an electrically connected main processor and an audio device, the main processor receiving a first audio and video signal, and the first audio signal in the first audio and video signal Converting and transmitting to the audio device for playback;

The main processor and the display device are connected through a custom interface, and convert the first video signal in the first audio and video signal to the display device for display.
The control device for audio playback according to claim 1, further comprising:

And an audio format conversion bridge, configured to receive a second audio signal sent by the display device through the custom interface, and send the converted second audio signal to the main processor, where the main processor The second audio signal is sent to the audio device for playback.
The control device for audio playback according to claim 1, wherein the main processor is further configured to send a third video signal in the on-screen menu mode data to the display device according to the received input command .
A video display device, wherein the video display device is connected to the main body portion through a custom interface, and receives and displays a first video signal obtained by the main device according to the received first audio and video signal, and the The first video signal is processed and displayed.
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.

Receiving, by the video processor, the first video signal, and transmitting the processed first video signal to the video format conversion bridge, the video format conversion bridge transmitting the converted data to the motion compensation The frame rate converter performs frame rate conversion and motion compensation processing, and the frame rate conversion and motion compensation processed data are played through the display screen.
The video display device according to claim 5, wherein the video display device further comprises a video signal multiple input switch module, configured to receive the second audio and video signal, and send the first to the video format conversion bridge a two-tone video signal, the video format conversion bridge transmitting a second video signal of the second audio and video signal to the motion compensation frame rate converter for frame rate conversion and motion compensation processing, the frame rate conversion And the data after the motion compensation processing is played through the display screen.
A video display device according to claim 6, wherein

Transmitting, by the video format conversion bridge, a second audio signal of the second audio and video signal The custom interface is sent to the body portion.
The video display device according to claim 7, wherein said video processor receives a third video signal and transmits the format converted data to said motion compensated frame rate converter, said motion compensated frame rate The converter superimposes and formats the processed data and the data processed by the second video signal, and then displays the image through the display screen.
An audio and video playback system, comprising: a main body portion and a display device,

The main body portion includes an electrically connected main processor and an audio device, the main processor receives a first audio and video signal, converts and transmits the first audio signal of the first audio and video signal to the audio device Play

The main body portion is connected to the display device through a custom interface, and converts and sends the first video signal in the first audio and video signal to the display device for display.
The audio and video playback system according to claim 9, wherein the main body portion further comprises:

And an audio format conversion bridge, configured to receive a second audio signal sent by the display device through the custom interface, and send the converted second audio signal to the main processor, where the main processor The second audio signal is sent to the audio device for playback.
The audio and video playback system according to claim 9, wherein the main processor is further configured to transmit the third video signal in the on-screen menu mode data to the display device according to the received input command.
The audio and video playing 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.

Receiving, by the video processor, the first video signal, and transmitting the processed first video signal to the video format conversion bridge, the video format conversion bridge transmitting the converted data to the motion compensation The frame rate converter performs frame rate conversion and motion compensation processing, and the frame rate conversion and motion compensation processed data are played through the display screen.
The audio and video playing system according to claim 12, wherein the display device further comprises a video signal multiple input switch module for receiving the second audio and video signal, and transmitting the first to the video format switching bridge a two-tone video signal, the video format conversion bridge transmitting a second video signal of the second audio and video signal to the motion compensation frame rate converter for frame rate conversion and motion compensation processing, the frame rate conversion And the data after the motion compensation processing passes through the display screen Line play.
The audio and video playback system according to claim 13 wherein:

The video format conversion bridge transmits a second one of the second audio and video signals to the body portion through the custom interface.
The audio and video playback system according to claim 14, wherein said video processor receives a third video signal and transmits the format converted data to said motion compensated frame rate converter, said motion compensated frame The rate converter superimposes and formats the processed data and the data processed by the second video signal, and then displays the image through the display screen.