CN218888576U - Television mainboard and television - Google Patents

Abstract

A television mainboard and a television are provided. The television main board comprises a digital tuner; a set-top box chip comprising: a conditional access CA module connected with the digital tuner; the audio decoder and the video decoder are connected with the conditional access CA module; the television chip connected with the set-top box chip comprises an audio and video output and drive module; the set-top box chip and the television chip are positioned on the same television mainboard. Therefore, when the television is manufactured, a television mainboard is arranged in the television, so that a user can watch scrambled and encrypted pay television programs only by purchasing the television, the total cost paid by the user is reduced, the purchase desire of the user on the television loaded with the television mainboard is promoted, and great commercial benefits are brought.

Description

Television mainboard and television

Technical Field

The present application relates to television technology, and more particularly, to a television motherboard and a television.

Background

The existing television is realized by adding a set-top box outside the television for digital television reception. Conventional set-top boxes and televisions are separately sold set-top boxes. A set-top box is a device that connects a television set to an external signal source. It can decode the compressed digital signal into television content and display it through a television set connected to it. The set-top box signals may come from cable, satellite dish, broadband network, and terrestrial broadcast. The content received by the set-top box includes images, sounds that the analog television can provide, and also includes data content such as electronic program guides, internet web pages, subtitles, and the like. A user can watch digital tv programs received and decoded by a set-top box on an existing tv set connected to the set-top box through a separately purchased set-top box, and can connect to a network through the set-top box for interactive entertainment, education, and some commercial activities.

Conventionally, a set-top box has a video decoding module, and a television set also has a video decoding module, some contents are decoded by the set-top box so as to be transmitted to the television set for display, and some contents are decoded by the television set and displayed and played by the television set. The set-top box can be opened and changed by receiving an infrared signal of a set-top box remote controller, the television also receives the infrared signal of the television remote controller to start, adjust volume, display and the like, two pieces of hardware cooperate together so as to fulfill the purposes of television receiving, displaying and watching, the operation is extremely inconvenient, the two pieces of hardware are purchased respectively, the purchase cost is high, and the occupied space is occupied.

There is a need for television technology that reduces cost and improves user experience.

SUMMERY OF THE UTILITY MODEL

According to an aspect of the present application, there is provided a television main board, including: a digital tuner; a set-top box chip comprising: the conditional access CA module is connected with the digital tuner; the audio decoder and the video decoder are connected with the conditional access CA module; the television chip connected with the set-top box chip comprises an audio and video output and drive module; the audio and video output and drive module is connected with an audio decoder and a video decoder in the set-top box chip and is connected with a television display outside the television mainboard, wherein the set-top box chip and the television chip are positioned on the same television mainboard.

According to another aspect of the present application, there is provided a television set including: a television display; a television set motherboard is described in accordance with various embodiments of the present application.

Thus, through the embodiments of the present application, when a television is manufactured, a scrambled and encrypted pay television program can be viewed by a user by only purchasing the television by placing a television main board according to the embodiments of the present application into the television, and the scrambled and encrypted pay television program can be viewed without separately purchasing both the television and a set-top box by the user, so that the overall cost paid by the user is reduced, the purchase desire of the user for the television loaded with the television main board is promoted, and great commercial benefits are brought.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a block diagram showing the construction of a conventional set-top box and television set.

Fig. 2 shows a block diagram of a television set motherboard according to an embodiment of the application.

Fig. 3 shows a block diagram of a television set main board according to another embodiment of the present application.

Fig. 4 shows a block diagram of a television set to which a television set main board according to an embodiment of the present application is applied.

Detailed Description

Reference will now be made in detail to specific embodiments of the present application, examples of which are illustrated in the accompanying drawings. While the application will be described in conjunction with the specific embodiments, it will be understood that it is not intended to limit the application to the described embodiments. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the application as defined by the appended claims. It should be noted that any functional block or functional arrangement may be implemented as a physical entity or a logical entity, or a combination of both.

Fig. 1 is a block diagram showing the construction of a conventional set-top box and television set.

As shown in fig. 1, conventionally, a user would purchase 2 devices: a television and a set-top box, and with the set-top box independently located outside of the television, both devices receive power through a power input, such as a 220V input.

The television and set-top box each have their own motherboard: a television mainboard and a set-top box mainboard. The Television mainboard and the set-top box mainboard are respectively provided with an audio decoder and a video decoder, the Television receives an Analog Television (ATV) signal through an ATV antenna, decodes the Analog Television signal by using the audio decoder and the video decoder in the Television mainboard and outputs the decoded result to a display for displaying and playing. The set-top box receives a Digital satellite television signal DVB-S and/or a Digital Terrestrial television signal DVB-T through a Digital satellite television signal (DVB-S) antenna and/or a Digital Video Broadcasting-terrestial (DVB-T) antenna, converts the Digital satellite television signal DVB-S and/or the Digital Terrestrial television signal DVB-T into two Digital signals through a DVB-T Digital tuner and a DVB-S Digital tuner, descrambles and decrypts the two Digital signals through a Conditional Access (CA) module in a set-top box mainboard, decodes the two signals through an audio decoder and a Video decoder in the set-top box mainboard, and transmits the decoded result to a display of the television through a High Definition Multimedia Interface (HDMI) line connected between the set-top box and the television for display and playing, so that a user can watch scrambled and encrypted pay television programs.

In addition, both require respective Infrared (IR) remote controllers to transmit and control IR commands to the tv and the set-top box, respectively.

Audio and Video signals are transmitted between the set-top box and the television only through an HDMI terminal, an Audio and Video (AV) terminal, an independent Video terminal (S-Video or S terminal) and/or an Audio terminal and the like, and other communication is not carried out.

The set-top box and the television are purchased respectively, so that the purchase cost is high. Two pieces of hardware of the set-top box and the television set need two remote controllers and are inconvenient to operate, and the two pieces of hardware of the set-top box and the television set are respectively arranged at 2 spaces, so that the space is occupied. If the set-top box main board and the television main board are simply connected together, the circuit area for connecting together is large, the functions are redundant, and the cost is not reduced.

The set top box chip and the television chip are integrated on the television mainboard through a series of technologies, so that the television mainboard can be arranged in the television, namely, the functions of the set top box and the television can be obtained under the condition of only purchasing the television, the scheme of low cost and high commercial value of scrambled and encrypted television programs needing to be paid can be realized by only purchasing one television, the circuit area can be reduced, and the cost of the chip can be reduced.

In particular, fig. 2 shows a block diagram of a television motherboard 200 according to an embodiment of the application.

As shown in fig. 2, the tv main board 200 includes: a digital tuner 201; a set-top-box chip 210 comprising: conditional access CA module 213 connected to digital tuner 201; and an audio decoder 211 and a video decoder 212 connected to the conditional access CA module 213; a television chip 220 connected to the set-top box chip 210, including an audio and video output and drive module 221; wherein the audio and video output and driving module 221 is connected to the audio decoder 211 and the video decoder 212 in the set-top box chip 210, and is connected to the tv display 202 outside the tv main board 200. Wherein the set-top box chip 210 and the television chip 220 are located on the same television motherboard 200.

A digital high-frequency tuner is a device used by a television set to receive high-frequency signals and demodulate video information. The digital tuner is also called as a digital high-frequency tuner, and can receive a digital television high-frequency signal through an antenna and perform channel selection, high-frequency signal amplification and frequency conversion processing. The internal circuit comprises an amplifying circuit and a frequency conversion circuit, namely, the received high-frequency signal is amplified and then is subjected to frequency reduction to be an intermediate-frequency signal. The tuner mainly amplifies weak video signals and deals with image deformation and interference caused by unstable transmission.

The digital television high frequency signal received by the antenna is directly or indirectly (e.g., via a demodulator, demultiplexer, etc.) transmitted via the digital tuner 201 to the conditional access CA module 213 in the set-top box chip 210. The conditional access CA module ensures that an authorized user (who has paid the associated fee) can receive the tv programs and other services he has subscribed to, and an unauthorized user cannot watch the pay-per-view tv programs or use the associated services.

The audio decoder 211 in the set-top-box chip 210 may decode the audio part of the video signal descrambled and decrypted from the conditional access CA module 213 to decode the original audio, and the video decoder 212 in the set-top-box chip 210 may decode the video part of the received video signal to decode the original video.

The decoded raw audio and raw video are fed to an audio and video output and drive module 221 on the television chip 220. The audio and video output and driving module 221 outputs the decoded original audio and original video to the tv display 202 to drive the tv display 202 for display and play.

Therefore, the conditional access CA module and the audio-video decoder integrated on the same television mainboard as well as the audio-video output interface of the television chip can enable a user to watch scrambled and encrypted pay television programs only by purchasing the television and not to need the user to independently purchase both the television and the set top box to watch the scrambled and encrypted pay television programs by putting the television mainboard into the television when manufacturing the television. The television chip can be used as a channel for outputting the audio and video decoded by the set top box, and the audio and video received by the antenna and the tuner are output to a television display to play the television program, so that the overall cost paid by a user is reduced, the purchase desire of the user to the television loaded with the television mainboard is promoted, great commercial benefit is brought, the circuit area is reduced, and the cost of the chip is reduced.

Note that references herein to "coupled" may include direct connections as well as indirect connections, i.e., connections through one or more additional devices, and may even include wireless connections. That is, two may be considered "connected" as long as there is a transmission of data or signals between the two.

Here, the television set may be an analog television, a digital television, a smart television, an internet television, or the like. The television set is not limited herein.

Of course, other circuit modules may be disposed on a tv motherboard, and these circuit modules will be described in detail below with reference to fig. 3, but it is noted that fig. 3 is only an embodiment and is not a limitation, and in fact, these circuit modules on the tv motherboard may be added or deleted as needed.

Fig. 3 shows a block diagram of a television main board 300 according to another embodiment of the present application.

As shown in fig. 3, the tv main board 300 at least includes a digital tuner 303 and/or 304; a set-top-box chip 310, comprising: conditional access CA module 314 coupled to digital tuners 303 and/or 304; an audio decoder 316 and a video decoder 315 connected to the conditional access CA module 314; a television chip 330 connected to the set-top-box chip 310, including an audio and video output and drive module 331; wherein the audio and video output and driving module 331 is connected to the audio decoder 316 and the video decoder 315 in the set-top-box chip 310 and to the tv display 306 outside the tv main board 300. The set-top box chip 310 and the television chip 330 are located on the same television motherboard 300.

The digital high-frequency tuner receives a digital television high-frequency signal through an antenna (for example, a DVB-S/S2 antenna 301 and/or a DVB-T/T2 antenna 302 shown in fig. 3), performs channel selection and high-frequency signal amplification and frequency conversion processing, and then directly or indirectly (for example, through a demodulator, a demultiplexer, and the like) transmits the digital television high-frequency signal to a conditional access CA module 314.

The conditional access CA module is a media protection term used by the broadcast television industry. The technology ensures that an authorized user (who has paid the related fee) can receive the television programs and other service services subscribed by the authorized user, and an unauthorized user cannot watch the television programs needing to be paid or use the related services. Television signals or other data are scrambled at the transmitter and then distributed to various forms of broadcast networks for broadcast.

In one embodiment, the conditional access CA module 314 includes at least a descrambler 3141 and a decryptor 3142.

A method to prevent unauthorized users from receiving is to scramble and/or encrypt the program and control the reception. The conditional access CA module at the receiving end of the television signal typically comprises at least a descrambler and/or decryptor, which only provides the authorized user with the keys required for content descrambling and/or decryption, with which the descrambler and/or decryptor can descramble and/or decrypt the received scrambled and/or encrypted digital television signal. The key is typically protected against illegal theft using a smart card or related technology. The CA technology requires protection of both the right of a user to freely select a program to watch and the interests of broadcasters and program providers.

That is, the general conditional access technology is mainly composed of three major technologies: scrambling and descrambling technology, addressing technology and encryption and decryption technology. The scrambling technique is that a conditional access system controls or changes some parameters (scrambling) of transmitted services at a transmitting end, so that the services are useless for unauthorized users; descrambling techniques restore the scrambled signal to the original signal. Addressing techniques refer to providing only "descrambling-related information" to authorized users, which information may be used by authorized users to descramble signals with a descrambler. The encryption and decryption technology is used for encrypting the information related to descrambling and related processes provided for authorized users so as to prevent secret leakage.

Thus, by adding the conditional access CA module 314 to the tv motherboard, when the tv is manufactured, a user can watch scrambled and encrypted pay tv programs only by purchasing the tv, and does not need to purchase both the tv and the set-top box separately to watch scrambled and encrypted pay tv programs, so that the overall cost paid by the user is reduced, the purchase desire of the user for the tv loaded with the tv motherboard is promoted, great commercial benefit is brought, the circuit area is reduced, and the cost of the chip is reduced.

The audio decoder 316 in the set-top-box chip 310 may decode the audio portion of the descrambled and decrypted video signal received from the conditional access CA module 314 to decode the original audio, and the video decoder 316 in the set-top-box chip 310 may decode the video portion of the received video signal to decode the original video.

Note that 2 digital tuners are shown in fig. 3, but the application is not so limited, and in fact 1, 3, or other numbers of various digital tuners may be arranged, depending entirely on how many and what television signals need to be received. Of course, the larger the number of the digital high frequency head is, the more television signals can be received at the same time, and the better the compatibility of the television mainboard to various television signals is, the better the compatibility of the television provided with the television mainboard is.

The decoded raw audio and video (which may be passed through HDMI output interface 319 on set-top-box chip 310 and HDMI input interface 332 on television chip 330) are fed to audio and video output and drive module 331 on television chip 330. The audio and video output and driving module 331 outputs the decoded original audio and original video to the tv display 306 to drive the tv display 306 to display and play.

Therefore, the conditional access CA module and the audio-video decoder integrated on the same television mainboard as well as the audio-video output interface of the television chip can enable a user to watch scrambled and encrypted pay television programs only by purchasing the television and not to need the user to independently purchase both the television and the set top box to watch the scrambled and encrypted pay television programs by putting the television mainboard into the television when manufacturing the television. The television chip can be used as a channel for outputting the audio and video decoded by the set top box, and the audio and video received by the antenna and the tuner is output to a television display to play the television program, so that the overall cost paid by a user is reduced, the purchase desire of the user on the television loaded with the television mainboard is promoted, great commercial benefits are brought, the circuit area can be reduced, and the cost of the chip is reduced.

In one embodiment, digital tuners may include digital satellite television signal DVB-S digital tuner 303 and digital terrestrial television signal DVB-T digital tuner 304. The application is not so limited and in fact 1, 3 or other number of various digital tuners, such as DVB-T digital tuners, etc., may be arranged depending on how many and what television signals need to be received.

DVB (Digital Video Broadcasting) is a mature set of european Digital Video Broadcasting standards, including DVB-S, DVB-C, DVB-T, for satellite, cable and terrestrial broadcasts, respectively, and has been approved by ETS (european telecommunications standard) and ITU (international telecommunication union). In China, DVB-S has become the standard for digital satellite television broadcasting, and many provincial digital compressed television programs adopt the standard. The DVB-S standard describes the frame structure, channel coding and modulation scheme for satellite digital television multiplexing in the Fixed Satellite Service (FSS) and Broadcast Satellite Service (BSS) bands. The DVB-S system defines a device function block that is output from an MPEG-2 (Moving Picture Experts Group-2) multiplexer to a radio frequency channel to perform adaptation processing on a baseband signal.

In this embodiment, the DVB-T antenna (DVB-T/T2) of the digital terrestrial television broadcasting system may receive the terrestrial television signals through a yagi antenna, and the DVB-S antenna (DVB-S/S2) of the digital satellite television broadcasting system may receive the satellite television signals through a satellite dish receiver or the like.

In addition, the digital tuner of the present application may also include television signal tuners that may be developed and developed in the future, and both existing and future digital tuners are also encompassed within the scope of the present application.

In one embodiment, the set-top-box chip 310 may further include: a DVB-S demodulator 311 and a DVB-T demodulator 312, which are respectively connected with the digital satellite television signal DVB-S digital tuner 303 and the digital terrestrial television signal DVB-T digital tuner 304; and a demultiplexer 313 connected to the DVB-S demodulator 311, the DVB-T demodulator 312 and the conditional access CA module 314.

In this manner, the digital tuner 303 and/or 304 receives a digital television high Frequency signal (e.g., a digital satellite television signal and/or a digital terrestrial television signal) through an antenna (e.g., the DVB-S/S2 antenna 301 and/or the DVB-T/T2 antenna 302 shown in fig. 3), performs channel selection and high Frequency signal amplification and Frequency conversion processing, and then supplies a resultant digital Intermediate Frequency (IF) signal to the DVB-S demodulator 311 and the DVB-T demodulator 312 to be demodulated to obtain a Transport Stream (TS), respectively.

These transport streams are delivered to a demultiplexer 313 for demultiplexing. Since the transport stream received by the digital television receiver is a single data stream synthesized from multi-channel data, the demultiplexer 313 at the receiving end needs to demultiplex the synthesized transport stream to filter out program contents such as audio and video of the currently selected channel. Currently, demultiplexing of transport streams can be done by a demultiplexer. The demultiplexer is responsible for filtering out the transport stream of the current channel, which is typically a scrambled transport stream, from the composite transport stream, and therefore needs to be sent to the conditional access CA module 314 for descrambling by the descrambler 3141 and decryption by the decryptor 3142, so as to filter out the encoded signals of the audio and video of the current channel.

The descrambled and decrypted audio and video encoded signals obtained by the conditional access CA module 314 are then decoded by an audio decoder 316 and a video decoder 315, respectively. Since at the transmitting end, the encoder encodes the analog television signal into an encoded digital signal of audio and video that can be transmitted over the air according to a specific compression standard. The encoding method may include MPEG-2, MPEG-4, etc., which is not limited, and actually, the encoding method may also adopt h.264, AVS (Audio Video coding Standard), etc., and encoding methods that may appear in the future. On the other hand, the audio decoder 316 and the video decoder 315 at the receiving end may restore the encoded digital signals to decoded audio signals and video signals by corresponding decoding methods.

In one embodiment, the set-top-box chip 310 may further include: an audio processor 318 connected to the audio decoder 316; a video processor 317 connected to the video decoder 315; an output interface 319 connected to the audio processor 318 and the video processor 317 and an input interface 332 on the television chip 330.

The audio processor 318 may convert the decoded audio signal into an audio encoding format, e.g., what resolution, what refresh rate, etc., that conforms to the output interface specification (in this example, high definition multimedia interface, HDMI, although this interface is not a limitation, and other interfaces or future developed interfaces may also be used). The video processor 317 may convert the decoded video signal into a video encoding format, e.g., what resolution, what refresh rate, etc., that conforms to the output interface specification (in this example, high definition multimedia interface, HDMI).

Note that in this example, the output interface 319 and the input interface 332 here may be connected by a line capable of transmitting an HDMI signal on the television main board 300.

Thus, the audio signal and the video signal processed by the audio processor 318 and the video processor 317 respectively pass through the output interface 319 (in this example, the high definition multimedia interface HDMI) on the set-top box chip 310 and the input interface 332 (in this example, the high definition multimedia interface HDMI) on the television chip 330 connected thereto after being processed by the audio processor 318 and the video processor 317 respectively.

The processed audio and video signals received by the input interface 332 on the tv chip 330 may be delivered to the audio and video output and driving interface 331 to drive the tv display 306 for display and playback. The tv Display herein may include a liquid crystal Display, a LED (Light Emitting Diode) Display, an OLED (Organic Light Emitting semiconductor) Display, and the like, as well as future developed displays.

Thus, through the various embodiments of the present application, when a television is manufactured, a television main board according to the embodiments of the present application is placed into the television, so that a user can view scrambled and encrypted pay television programs only by purchasing the television, and can view the scrambled and encrypted pay television programs without independently purchasing both the television and the set-top box, thereby reducing the overall cost paid by the user, promoting the purchase desire of the user for the television loaded with the television main board, bringing great commercial benefits, and also reducing the circuit area and the cost of the chip itself.

In addition, hardware deletion, circuit improvement and connection relation improvement in all aspects are further performed, so that the television main board can achieve the effects of reducing the circuit area, reducing the cost of a chip and being simpler and more convenient to operate while maintaining the functions.

In one embodiment, the television chip 330 may include a remote control converter 335, the remote control converter 335 connected to the remote control receiver 307 on the television chip 330 and to the remote control receiver 323 on the set-top box chip 310, wherein the remote control converter 335 converts remote control signals received by the remote control receiver 307 on the television chip 330 into remote control signals that can be interpreted by the remote control receiver 323 on the set-top box chip 310.

In this example, the remote control translator 335 may be implemented by a processor, such as a central processing unit CPU, on the television chip 330. Of course, the implementation of the remote control converter 335 is not limited thereto, and may also be implemented using a dedicated remote control converter element. The remote control translator 335 may employ any existing technique to translate the remote control signals received by the remote control receiver 307 on the television chip 330 into remote control signals that can be interpreted by the remote control receiver 323 on the set-top-box chip 310. For example, when the source is a set-top box source, the remote control converter 335 may convert the code value of the remote control instruction sent by the television remote controller 305 and received by the remote control receiver 307 into a corresponding set-top box remote control instruction code value through a corresponding relationship (e.g., a corresponding mapping table, a lookup table, or other corresponding relationship) between the television remote control instruction code value and the set-top box remote control instruction code value, and send the corresponding set-top box remote control instruction code value to the remote control receiver 323 on the set-top box chip 310 in a remote control signal manner, so as to manipulate functions on the set-top box chip, such as changing channels, changing volume, selecting services, and the like. Of course, when the source is a tv source, the remote control signal received by the remote control receiver 307 on the tv chip 330 will operate the functions of the tv as in the prior art.

Note that the remote control signal may be an infrared remote control signal, a bluetooth remote control signal, a WiFi (Wireless Fidelity) remote control signal, or the like, and is not limited herein as long as the remote control function is realized. The remote control converter may be an infrared remote control signal converter, a bluetooth remote control signal converter, a WiFi remote control signal converter, or the like. The remote control receiver may be an infrared remote control signal converter, a bluetooth remote control signal converter, a WiFi remote control signal converter, or the like.

In one embodiment, the remote converter communicates with a remote receiver on the set-top-box chip through a remote transmission interface on the television chip and the set-top-box chip.

Therefore, the functions of the television and the set top box can be controlled by only one remote controller, such as a television remote controller and an external remote control receiver, one remote controller is saved, the cost is further reduced, the operation of a user is simplified, the complex operation of independent use of 2 remote controllers is avoided, and the user experience is better. And two redundant remote control input interfaces of the original television main board and the original set-top box main board are changed into one remote control input interface on the television main board, and only a remote control signal of a television remote controller is received, so that the related hardware cost is further saved.

In one embodiment, the tv chip 330 includes a tv processor (e.g., tv central processor CPU) 335 and the set-top box chip 310 includes a set-top box processor (e.g., set-top central processor CPU) 321, wherein the tv processor 335 communicates with the set-top box processor 321 through the asynchronous serial communication protocol UART interfaces 334, 320 on the tv chip 330 and the set-top box chip 310.

The conventional television and the set-top box do not have an asynchronous serial port communication protocol UART interface, because communication except video signal transmission is not required between the two, but according to the embodiment of the application, the asynchronous serial port communication protocol UART interface is arranged on the television chip and the set-top box chip to enable communication and communication between the television processor and the set-top box processor, which is beneficial to realizing higher-level control between the television processor and the set-top box processor, such as channel change, volume adjustment, menu selection, interactive entertainment and the like.

In one embodiment, the tv motherboard 300 further comprises: the analog tv ATV tuner 324 is connected to the DVB-T tuner 304 and to the analog tv ATV decoder 333 of the tv chip 330, wherein the analog tv ATV tuner 324 loops the DVB-T signal received by the DVB-T tuner 304 out of the analog tv ATV signal, and the analog tv ATV decoder 333 of the tv chip 300 is connected to a tv display outside the tv main board.

As shown in fig. 3, the analog television ATV tuner 324 is located on the television motherboard 300, but not on the set-top box chip 310 and the television chip 330. Of course this is only an example and it is contemplated that the analog television ATV tuner 324 may be placed on either the set-top box chip 310 or the television chip 330.

Thus, according to the embodiment of the application, the ATV antenna of the traditional television mainboard for receiving the analog television ATV signal can be deleted. The antenna of the digital satellite television system DVB-S signal and/or the digital terrestrial television broadcasting system DVB-T signal received by the original set top box is reserved, the radio frequency signal received by the digital terrestrial television broadcasting system DVB-T antenna is converted into an intermediate frequency signal by utilizing the existing analog television ATV tuner (high frequency head), and then an ATV signal is looped out to an analog television ATV decoder on a television chip, so that the decoded analog television ATV audio and video are output to a television display for displaying and playing.

In addition, according to the embodiment of the present application, the redundant power inputs are changed into one power input 340, and one power input is received, so that the power consumption and the related hardware cost are also reduced.

Note that the components of fig. 3 are only one specific embodiment, and are not limited, and in fact, these circuit modules on the motherboard of the tv may be added or deleted as needed, and the embodiments described or not described herein, which are consistent with the concept and principle of the present application, fall within the protection scope of the present application.

Therefore, the television chip and the set-top box chip on one television mainboard can be connected by 4 groups of wires, some interfaces are deleted, and conversion or loop-out (such as remote control signals, antenna signals and the like) is carried out inside, so that required signals are transmitted between the television mainboard and the set-top box mainboard. Specifically, two chips are connected through a group of HDMI lines to transmit television audio and video signals, and two chips are connected through a group of UART lines to transmit control signals sent by a set top box chip and a television chip. The two chips are connected through a group of remote control transmission lines to send the remote control instruction of the television remote controller to the set-top box chip. And transmitting the antenna signal of the DVB-T/T2 antenna to a television chip through an ATV signal looped out by the ATV tuner through a group of lines.

Note that the "line", "connection", and "line" mentioned herein generally indicate a wired connection, but may be a wireless connection in some cases.

Also shown by way of example and not limitation in FIG. 3 are components such as double data rate synchronous dynamic random access memory (DDR memory) 322, 336, flash memory 308, 309, etc., which may be used by the processor for data processing and for temporary or permanent storage of data.

Thus, through the embodiments of the present application, when a television is manufactured, a television main board according to the embodiments of the present application is placed in the television, so that a user can watch scrambled and encrypted pay television programs only by purchasing the television, and does not need to purchase both the television and a set-top box separately to watch the scrambled and encrypted pay television programs, thereby reducing the overall cost paid by the user, promoting the purchase desire of the user for the television loaded with the television main board, bringing great commercial benefits, reducing the circuit area and reducing the cost of the chip itself.

Fig. 4 shows a block diagram of a television 400 to which a television motherboard according to an embodiment of the present application is applied.

As shown in fig. 4, the television 400 includes: a television display 401; a tv motherboard according to various embodiments of the present application, for example, a tv motherboard as shown in fig. 2 or fig. 3.

Therefore, when the television is manufactured, the scrambled and encrypted pay television program can be watched by a user only by purchasing the television by placing the television main board according to the embodiment of the application into the television, and the scrambled and encrypted pay television program can be watched without independently purchasing both the television and the set top box by the user, so that the overall cost paid by the user is reduced, the purchase desire of the user on the television loaded with the television main board is promoted, great commercial benefit is brought, the circuit area is reduced, and the cost of a chip is reduced.

Of course, the above-mentioned embodiments are merely examples and not limitations, and those skilled in the art can combine and combine some steps and apparatuses from the above-mentioned separately described embodiments to achieve the effects of the present application according to the concepts of the present application, and such combined and combined embodiments are also included in the present application, and such combined and combined embodiments are not described herein separately.

Note that advantages, effects, and the like mentioned in the present disclosure are merely examples and not limitations, and they cannot be considered essential to various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.

The block diagrams of devices, apparatuses, systems, referred to in this disclosure are only given as illustrative examples

And is not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams.

These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by one skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. As used herein, the words "or" and "

The word "and/or" is referred to and used interchangeably herein unless the context clearly dictates otherwise. The word "such as/for example" as used herein refers to the phrase "such as, but not limited to," and is used interchangeably therewith.

In addition, the device in the embodiments of the present invention is not limited to be implemented in a certain embodiment,

in fact, some devices related to the various embodiments herein may be combined according to the concepts of the present application to conceive new embodiments, and these new embodiments are also included in the scope of the present application.

General purpose processors designed to perform the functions described herein, digital signal processing may be utilized

A processor (DSP), ASIC, field programmable gate array signal (FPGA), or other Programmable Logic Device (PLD),

The various illustrative logical blocks, modules, and circuits described may be implemented or described as discrete gate or transistor logic, discrete hardware components, or any combination thereof. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any commercially available processor, controller, microcontroller or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, a microprocessor in conjunction with a DSP core, or any other such configuration.

Other examples and implementations are within the scope and spirit of the disclosure and appended claims. For example,

the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination of these. Features implementing functions may also be physically located at various locations, including being distributed such that portions of functions are implemented at different physical locations. Also, as used herein, is included in

As used in the claims, the term "or" as used in a listing of items beginning with "at least one" indicates a point

Separate enumeration, so that an enumeration such as "at least one of A, B or C" means A or B or C,

or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not mean that the described example is preferred or better than other examples.

The techniques described herein may be performed without departing from the techniques of the teachings defined by the appended claims

Various changes, substitutions, and alterations. Furthermore, the scope of the claims of the present disclosure is not limited to the above description

Specific aspects of the apparatus, devices, machines, manufacture, or manufacture. May be carried out using respective aspects as described herein

Apparatus, device, machine, manufacture, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result. Accordingly, the appended claims are intended to include within their scope such devices, apparatus, machines, manufacture.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

Claims (9)

1. A television motherboard, the television motherboard comprising:

a digital tuner;

a set-top-box chip comprising:

the conditional access CA module is connected with the digital tuner; and

the audio decoder and the video decoder are connected with the conditional access CA module;

the TV chip connected with the set-top box chip comprises

An audio and video output and drive module;

the set-top box chip and the television chip are positioned on the same television mainboard.

2. The television main board according to claim 1, wherein the conditional access CA module comprises at least a descrambler and a decryptor.

3. The television motherboard of claim 1 or 2, wherein the digital tuner comprises a digital satellite television signal DVB-S digital tuner and a digital terrestrial television signal DVB-T digital tuner, the set-top box chip further comprising:

the DVB-S demodulator and the DVB-T demodulator are respectively connected with the digital satellite television signal DVB-S digital tuner and the digital terrestrial television signal DVB-T digital tuner;

and the demultiplexer is connected with the DVB-S demodulator, the DVB-T demodulator and the conditional access CA module.

4. The television motherboard of claim 1 or 2, wherein the set-top-box chip further comprises:

an audio processor connected to the audio decoder;

a video processor connected to the video decoder;

and the output interface is connected to the audio processor, the video processor and the input interface on the television chip.

5. The television motherboard of claim 1 or 2, wherein the television chip comprises a remote control converter coupled to a remote control receiver on the television chip and to a remote control receiver on the set-top-box chip, wherein the remote control converter converts remote control signals received by the remote control receiver on the television chip into remote control signals interpretable by the remote control receiver on the set-top-box chip.

6. The motherboard of claim 5 wherein the remote converter communicates with a remote receiver on the set-top-box chip via a remote transmission interface on the television chip and the set-top-box chip.

7. The motherboard of claim 1 or 2, wherein the television chip comprises a television processor and the set-top-box chip comprises a set-top-box processor, wherein the television processor communicates with the set-top-box processor via asynchronous serial communication protocol (UART) interfaces on the television chip and the set-top-box chip.

8. The television motherboard of claim 3, further comprising: and the analog television ATV tuner is connected with the digital terrestrial television signal DVB-T digital tuner and is connected with an analog television ATV decoder on the television chip, wherein the analog television ATV tuner loops the digital terrestrial television DVB-T signal received by the digital terrestrial television signal DVB-T digital tuner out of an analog television ATV signal, and the analog television ATV decoder on the television chip is connected with a television display outside the television mainboard.

9. A television set, characterized in that the television set comprises:

a television display;

a television motherboard according to any of claims 1 to 8.

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