CN220087343U - System-in-chip, television mainboard and television - Google Patents

Abstract

A system-in-chip, a television motherboard and a television are provided. A system-on-chip, characterized by integrating on the system-on-chip: an interactive network television interface for receiving an interactive network television signal; a terrestrial and/or satellite television interface for receiving terrestrial digital television signals and/or satellite television signals; a conditional access CA module connected with the ground and/or satellite television interface; and a common television signal decoder connected to both the conditional access CA module and the interactive network television interface; and the output interface is connected with the television signal decoder and is used for outputting the decoded television signal. Therefore, when the television is manufactured, the system-level chip is integrated, so that a user can watch the scrambled and encrypted pay television programs only by purchasing the television, the total cost of the user is reduced, the purchasing desire of the user for the television loaded with the television mainboard is promoted, and great commercial benefit is brought.

Description

System-in-chip, television mainboard and television

Technical Field

The present utility model relates to a television technology, and more particularly, to a system-on-chip, a television motherboard, and a television.

Background

The current television is realized by adopting a set top box outside the television for digital television reception. The conventional set-top box and television set are separately sold set-top boxes. The set-top box is a device that connects a television with an external signal source. It can decode the compressed digital signal into television content and display it via the television set to which it is connected. The signals of the set-top box may come from cable, satellite antennas, and terrestrial broadcasts. The content received by the set-top box includes images, sound, and data content such as electronic program guides, subtitles, etc. that can be provided by the digital television. The user can watch the digital television program received and decoded by the set-top box on the existing television connected with the set-top box through the set-top box purchased separately, and can carry out entertainment, education and some business activities through the set-top box.

Conventionally, a set top box has a Central Processing Unit (CPU) and an audio/video decoding module, and a television also has a CPU and an audio/video decoding module, where some television contents are decoded by the set top box, so that the television contents are transmitted to the television for display through a high-definition multimedia interface (HDMI) line externally connected to the set top box, and some television contents are decoded by the television, and are directly displayed and played by the television. The set top box can receive the infrared signal of the set top box remote controller to open and change channels, the television also receives the infrared signal of the television remote controller to start, adjust volume, display and the like, the two hardware are required to cooperate together so as to be capable of completing the purposes of television receiving, displaying and watching, the operation is very inconvenient, the two hardware are required to be purchased respectively, the purchase cost is high, and the space is occupied.

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

Disclosure of Invention

According to one aspect of the present utility model, there is provided a system-on-chip SoC, characterized in that on said system-on-chip is integrated: an interactive network television interface for receiving an interactive network television signal; a terrestrial and/or satellite television interface for receiving terrestrial digital television signals and/or satellite television signals; a conditional access CA module connected to the terrestrial and/or satellite television interface; and a common television signal decoder coupled to both the conditional access CA module and the interactive network television interface; and the output interface is connected with the television signal decoder and is used for outputting the decoded television signal.

According to another aspect of the present utility model, a television motherboard is provided, incorporating a system-on-chip according to various embodiments of the present utility model.

According to another aspect of the present utility model, there is provided a television set, characterized in that the television set includes: a television display; a television motherboard integrates a system-on-chip according to various embodiments of the present utility model.

Thus, through the embodiments of the present utility model, the system-on-chip (or the television motherboard integrated with the system-on-chip) according to the embodiments of the present utility model can be placed into a television (e.g., an interactive internet television) when the television is manufactured, so that a user can watch both an intelligent television program and a scrambled and encrypted satellite pay television program only by purchasing, for example, the intelligent television at one time, without the need for the user to separately re-purchase both the set-top box and the scrambled and encrypted satellite pay television program, thereby reducing the overall cost for the user, promoting the purchase desire of the user for the intelligent television on which such a system-on-chip is loaded, and bringing great commercial benefits.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

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

Fig. 2 shows a block diagram of a system on chip according to an embodiment of the utility model.

Fig. 3 shows a block diagram of a system on chip according to another embodiment of the utility model.

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

Fig. 5 shows a block diagram to which a television according to an embodiment of the present utility model is applied.

Detailed Description

Reference will now be made in detail to the present embodiments of the utility model, examples of which are illustrated in the accompanying drawings. While the utility model will be described in conjunction with the specific embodiments, it will be understood that it is not intended to limit the utility model 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 utility model 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.

As shown in fig. 1, conventionally, a user purchases 2 devices: television and set top box, and the set top box is independently placed outside the television, both devices receive power through a power input, such as 220V input.

The television and the set-top box each have their own motherboard: a television main board and a set top box main board. The television set receives analog television ATV signals through an analog television (Analog Television, ATV) antenna, decodes the analog television signals by utilizing the audio decoder and the video decoder in the television set main board and outputs decoding results to a display for display and playing. The set top box receives, for example, digital satellite television signals DVB-S and/or digital Terrestrial television signals DVB-T through, for example, a digital satellite television signal (Digital satellite TV system, DVB-S) antenna and/or a digital Terrestrial television signal (Digital Video Broadcasting-terrestrials, DVB-T) antenna, converts the digital satellite television signals DVB-S and/or digital Terrestrial television signals 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 (Conditional Access, CA) module in a main board of the set top box, decodes the two signals through an audio decoder and a video decoder in the main board of the set top box, and transmits decoding results to a display of the television through a high-definition multimedia output interface (High Definition Multimedia Interface, HDMI) line connected between the set top box and the television for displaying and playing, so that a user can watch the scrambled and encrypted television programs needing payment.

In addition, both require respective infrared (Infrared Radiation, IR) signal remote controls to transmit and control infrared instructions to the television and set-top box, respectively.

The set-top box and the television set only transmit Audio and Video signals through, for example, an HDMI terminal, an Audio Video (AV) terminal, an independent Video terminal (S-Video or S terminal), and/or an Audio terminal, and the like, without other communication.

The two hardware of the set top box and the television are purchased respectively, and the purchase cost is high. The two pieces of hardware of the set top box and the television are inconvenient to operate due to the fact that the two remote controllers are needed, and the two pieces of hardware of the set top box and the television are respectively arranged in two 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 of the connected together is larger, the functions are redundant, and the cost is not reduced to a great extent.

The inventors have considered that in the case where the television is an interactive web television (or smart television), the performance of the central processing unit (Central Processing Unit, CPU) of the interactive web television is much higher than that of the central processing unit of a conventional digital television, because the central processing unit of the interactive web television needs to satisfy various interactive functions between the web television and the user depending on the internet, such as watching a web-cast television, such as IPTV, video on demand, surfing the internet, game interaction, shopping, and so on. Therefore, the inventor wants to integrate key functions of a set-top box in an interactive network television by using a high-performance central processing unit of the interactive network television, and meanwhile, the cost of chips and circuits is low.

The utility model integrates the conditional access (Conditional Access, CA) functions of the interactive network television and the satellite television by a series of technology by using the system-level chip, and shares a television signal decoder on the system-level chip and utilizes a central processing unit in the internet television, so that the system-level chip can be built in the television (such as the interactive network television), namely, the functions of both the set-top box and the television can be obtained under the condition that only the television is purchased, thereby realizing the scheme of low cost and high commercial value of the scrambled and encrypted television program which needs to be processed by the set-top box can be watched by only purchasing one television, and reducing the circuit area and the cost of the chip per se.

Before the detailed description, the concepts related to the present utility model are described:

the development process of the television comprises black-and-white analog television, color analog television, cable digital television, terrestrial digital television, satellite digital television, interactive network television (or intelligent television IPTV) and the like.

The terrestrial digital television is one of digital television technologies, that is, the terrestrial digital television signals sent by a television tower are received by an antenna to watch television programs. In the aspect of television, the terrestrial digital television signal receiving capability is required, and in the case of an old analog television, the terrestrial digital television signal receiving capability can also be received through a special set top box and then converted into an analog signal to be connected to the television. The terrestrial digital television is mainly oriented to suburbs, villages and other areas without network coverage, and mobile terminals such as vehicle-mounted digital television and mobile phones.

Satellite digital television utilizes a satellite receiving antenna to receive digital television signals transmitted through satellites, and has the advantages of large coverage area and large coverage area.

An interactive network television (or called intelligent television or called IPTV) is a technology which integrates the technologies of the Internet, multimedia, communication and the like into a whole by utilizing a broadband network and provides various interactive services including a digital television for home users. The system structure mainly comprises subsystems such as streaming media service, program editing, storage, authentication charging and the like, wherein the content mainly stored and transmitted is a streaming media file taking a dynamic image expert group (Motion Picture Experts Group, MPEG) -2/4 standard as a coding core, and the streaming media file is transmitted based on an Internet Protocol (IP) network, so that a content distribution service node is usually arranged, the streaming media service and storage equipment are configured, and a user terminal is usually an IP set top box and a television set or a personal computer PC. IPTV can provide various digital media services including television programs through an internet protocol using an infrastructure of a cable television network with a home television set as a main terminal device.

Terrestrial digital television (Digital Terrestrial Transmission, DTT) receives over-the-air television signals through an antenna rather than through cable or satellite.

A satellite Direct To Home (DTH) receives television signals broadcast over the air through a satellite.

A System on Chip (SoC), also known as a System on Chip, refers to a dedicated, target integrated circuit that integrates a compute processor and other electronic systems into a single Chip, including the complete System with embedded software. The information system is the chip integration of the information system core, and key components of the system are integrated on one chip.

The difference between the system-level chip and the main board (main board) of the television is that the main board of the television is a main component of the television, and a power supply assembly, a display core, a memory and other various chips, capacitors, circuits and the like are generally integrated.

In particular, FIG. 2 shows a block diagram of a system on chip 200 according to an embodiment of the utility model.

On the system-on-chip SoC 200 is integrated: an interactive internet protocol television interface 210 for receiving an interactive internet protocol television signal; a terrestrial and/or satellite television interface 220 for receiving terrestrial digital television signals and/or satellite television signals; a conditional access CA module 230 connected to a terrestrial and/or satellite television interface; and a common television signal decoder 240 coupled to both the conditional access CA module and the interactive network television interface; an output interface 250, coupled to the television signal decoder, outputs the decoded television signal.

Conditional access CA modules are media protection terms used by the broadcast television industry. This technique ensures that an authorized user (who has paid for the associated fee) can receive television programs and other service services to which he/she has subscribed, and that an unauthorized user cannot view the pay-per-view television programs or use the associated service. The television signal or other data is scrambled at the transmitting end and then distributed to various forms of broadcast network play-out.

Here, according to an embodiment of the present utility model, by integrating the interactive network television interface, the terrestrial and/or satellite television interface, and the conditional access CA module in one system-on-chip, the received interactive network television signal and/or the satellite television signal, such as a pay television program, processed by the conditional access CA module may be decoded by using a common television signal decoder.

Fig. 3 shows a block diagram of a system on chip 200 according to another embodiment of the utility model.

In one embodiment, conditional access CA module 230 includes at least a descrambler 231 and a decryptor 232.

In order to prevent unauthorized users from viewing pay-tv programs, the programs are scrambled and/or encrypted and received under control. Conditional access CA is largely divided into two major parts: a signal scrambling part, which controls the scrambling of the signal by the scrambler through a random code (called Control Word (CW)) generated by a random code generator; and secondly, in the encryption part, in order to successfully descramble the scrambled signal at the receiving end, the receiving end also needs to have a control word identical to the scrambling end to control the descrambler. The pseudo random sequence (descrambling sequence) of the receiving end can be used to restore the scrambled information to the original information as long as the control words between the receiving and transmitting ends are the same. The control word is typically 64 bits (8 bytes) and may be updated every other period, for example every 2-10 s. The control words are transmitted to the receiving end in an encrypted format by means of encrypted control information (Entitle Control Message, ECM). Thus, conditional access CA modules at the television signal receiving end typically include at least a descrambler and/or a decryptor that can descramble and/or decrypt the received scrambled and/or encrypted digital television signal using a key that is only provided to authorized users with the key required for content descrambling and/or decryption.

The key is typically protected from illegal theft by a smart card or related technology. In one embodiment, a smart card 270 is also integrated on the system on chip 200 and is coupled to the conditional access CA module 230 for storing decryption keys associated with the television signal operator and for providing decryption keys associated with the television signal operator to the decryptor 232 for use in decrypting television programs transmitted by the operator when decryption of television programs is performed by the decryptor 232 in the conditional access CA module 230. The smart card may be a chip entity or a module that implements the smart card functionality. CA technology requires protection of both the user's rights to freely select to watch programs and the interests of broadcasters and program providers.

That is, the conditional access CA technique is mainly composed of three technologies: scrambling and descrambling techniques, addressing techniques and encryption and decryption techniques. Scrambling refers to the condition that the receiving system controls or changes certain parameters (scrambling) of transmitted services at the transmitting end, so that the services are useless for unauthorized users; the descrambling technique restores the scrambled signal to the original signal. Addressing techniques refer to providing only "descrambling-related information" to an authorized user who may use its information to descramble a signal with a descrambler. Encryption and decryption techniques refer to providing "descrambling related information" to authorized users and related process encryption to prevent disclosure.

In this way, by integrating the conditional access CA module on the system-on-chip and sharing one decoder, the system-on-chip will be placed on the television motherboard of the television in accordance with the embodiments of the present utility model when the television is manufactured, i.e., it is possible to realize that the user can watch the scrambled and encrypted pay-tv program only by purchasing the television, without the user having to separately purchase both the television and the set-top box, so that the overall cost paid by the user is reduced, the purchasing desire of the user for the television loaded with the television motherboard of the system-on-chip is promoted, great commercial benefits are brought, and the circuit area and the cost of the chip itself can be reduced.

In one embodiment, the interactive network television interface includes at least one of an ethernet interface and a wireless network Wifi interface. The interactive web tv interface may receive internet tv data by connecting to the internet through an ethernet or Wifi interface.

The terrestrial and/or satellite television interface comprises at least one of a terrestrial digital television DTT tuner 221 and a satellite live television DTH tuner 222. Different digital television signal standards can be adopted by the ground digital television DTT and the satellite live television DTH, and different radio frequency and channel demodulation requirements can be specified.

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

In this embodiment, the DTT television signal may receive terrestrial television signals through a yagi antenna, and the DTH may receive satellite television signals through a satellite dish receiver or the like.

In addition, the tuner of the present utility model may also include television signal tuner that may appear and develop in the future, and both existing and future tuner are included in the scope of the present utility model.

Digital television high frequency signals received via the antenna are delivered directly or indirectly (e.g., via a demodulator, demultiplexer, etc.) via the terrestrial and/or satellite television interface 220 to the conditional access CA module 230 on the system-on-chip 200. The conditional access CA module 230 thus ensures that an authorized user (who has paid for the associated fee) can receive his subscribed television programs and other service services, and that an unauthorized user cannot view the pay-per-view television program or use the associated service.

In one embodiment, a demodulator 260 is also integrated on the system on chip and coupled to the terrestrial and/or satellite television interface and conditional access CA module 230.

The demodulator of the television signal corresponds to the modulator of the television signal. The modulator of the television is also called a radio frequency modulator, modulates the received audio and video signals to a required frequency band, inputs the audio and video signals, and outputs the radio frequency audio and video signals in a specific frequency band. The demodulator of the television demodulates the received radio frequency audio and video signals and outputs the demodulated audio and video signals. Different television signal standards may have different specific frequency bands. The demodulator may demodulate television signals of different standards into demodulated audio-video signals.

In one embodiment, a demultiplexer 261 is also integrated on the system on chip and is coupled to demodulator 260 and conditional access CA module 230.

The demultiplexer of the television signal also corresponds to the multiplexer of the television signal. The multiplexer of the television can output the input digital audio and video code stream signals of a plurality of channels into a digital code stream signal to the modulator through digital multiplexing, and then the modulator modulates the audio and video signals so as to be output. The demultiplexer 261 of the television signal demultiplexes the audio and video signals demodulated by the demodulator 260 so as to obtain audio and video signals of the respective channels.

As described above, the audio/video signals of each channel are further subjected to the mediation receiving CA module 230 to perform authorization and descrambling, and decryption, so as to obtain the audio/video signals that can be played for the authorized user. Here, the audio-video signal is video-encoded.

In addition, note that the network audio and video signals received via the interactive network television interface 210 are encoded audio and video streams that are not multiplexed and modulated, and thus do not need to be passed through a demodulator and demultiplexer to be directly input to the common television signal decoder 240 for decoding into audio and video streams for display by a display.

In one embodiment, the common television signal decoder 240 selects a decoding mode appropriate for the type of input television signal to decode based on the type of input television signal.

The television signal decoder also corresponds to the television signal encoder. Video encoding of television signals includes, but is not limited to, H.264, MPEG 4, MPEG 2, and the like. The common television signal decoder 240 also selects a decoding mode appropriate for the type of incoming television signal based on the type of incoming television signal, e.g., the incoming encoded television signal is encoded with h.264, and the television signal decoder 240 also decodes with h.264. The decoder of course also includes the functions of audio decoding and video decoding, which are not described in detail here.

Here, since the interactive network television signal and the terrestrial and/or satellite television signal are commonly received and processed signals are decoded by the (one) common television signal decoder 240, the hardware overhead of the original two decoders is also saved, and the circuit structure is simplified.

In one embodiment, a central processing unit 280 is also integrated on the system on chip 200, and is connected to at least the smart card 270, the conditional access CA module 230, and the television signal decoder 240, and is primarily operative to coordinate the input and output of data between the various modules and to instruct the modules to function and cooperate.

In one embodiment, a memory 281 is also integrated on the system on chip 200 and is connected to the cpu 280, so as to temporarily store data to be processed and processed by the cpu 280 for use by the cpu 280 or other modules.

In one embodiment, data is transferred between television signal decoder 240 and conditional access CA module 230, output interface 250 via a bus. For example, the data output by conditional access CA module 230 is transmitted to the bus, television signal decoder 240 obtains the data from the bus and decodes it, then transmits the decoded data to the bus, and output interface 250 obtains the decoded data from the bus for output to a television display (not shown) for display. These actions may be controlled by the central processing unit 280. Here, the television display may include a liquid crystal display, an LED (light emitting diode ) display, an OLED (organic light emitting semiconductor, organic Electroluminescence Display) display, and the like, as well as a display screen developed in the future.

In one embodiment, data is transferred between television signal decoder 240 and conditional access CA module 230, output interface 250 via direct memory access DMA. Direct memory access. DMA transfers copy data directly from one address space to another without intervention from a central processing unit, providing high speed data transfer between modules. The transfer action itself may be implemented and completed by a DMA controller (not shown) rather than by a central processing unit. The central processing unit can then be saved for other things.

Note that the system in chip 200 does not need to transfer audio and video signals through HDMI lines or the interaction of HDMI signals as in conventional fig. 1, but is more compact, lower in circuit cost, and higher in signal processing efficiency.

In one embodiment, a common remote control signal receiver 290 is also integrated on the system on chip 200 and coupled to the central processing unit 280 for receiving remote control signals. The central processing unit 280 may interpret the remote control signals received by the remote control signal receiver 290 and control the respective modules to perform corresponding operations, such as switching signal sources, switching channels, network interactions, etc., according to the interpreted instructions.

Note that the remote control signal here may be an infrared remote control signal, a bluetooth remote control signal, a WiFi (Wireless Fidelity, wireless network) remote control signal, or the like, and is not limited herein as long as it can realize a remote control function.

That is, only one common remote control signal receiver 290 is required instead of the 2 remote controllers and 2 remote control signal receivers shown in fig. 1, so that the operation control of the television can be realized, and the operation of the user is simplified.

Thus, the conditional access CA module and the audio/video decoder are integrated on one system-level chip to realize the functions of the interactive network television, so that the system-level chip according to the embodiment of the utility model can be placed in the television (such as the interactive network television) when the interactive network television is manufactured, namely, a user can watch the scrambled and encrypted pay television program only by purchasing the television, and the user can watch the scrambled and encrypted pay television program without purchasing the television and the set-top box independently, thereby reducing the total cost for the user, promoting the purchase desire of the television by the user, bringing great commercial benefits, and reducing the circuit area and the cost of the chip.

In addition, the utility model also carries out hardware deletion, circuit improvement and connection relation improvement in various aspects, so that the system-level chip can obtain the functions of the interactive network television and the functions of the set top box for receiving the pay television, and simultaneously realize the effects of reducing the circuit area, reducing the cost of the chip and having simpler and more convenient operation.

Of course, other circuit modules may be provided on the system-on-chip as needed, and are not limited herein.

Note that references herein to "connected" may include direct connection, but also indirect connection, i.e., connected via one or more additional devices, and may even include wireless connection. That is, two may be considered "connected" whenever there is a transmission of data or signals between them.

Fig. 4 shows a block diagram to which a television main board 400 according to an embodiment of the present utility model is applied.

As shown in fig. 4, a television motherboard 400 incorporates a system-on-chip 401 according to various embodiments of the present utility model.

Of course, a power module (not shown) and the like may also be integrated on the television main board 400, which is not described herein.

Fig. 5 shows a block diagram of a television 500 to which an embodiment according to the utility model is applied.

As shown in fig. 5, the television 500 includes: a television display 501; as shown in fig. 4, a television motherboard 400 integrates a system-on-chip 401 according to various embodiments of the present utility model.

In one embodiment, the television is an interactive web television.

Thus, when the television is manufactured, the television mainboard integrated with the system-on-chip is placed into the television (for example, the interactive network television), so that a user can watch the scrambled and encrypted pay television program only by purchasing the television, and the user is not required to independently purchase the television and the set top box to watch the scrambled and encrypted pay television program, the total cost of the user is reduced, the purchasing desire of the user for 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.

Of course, the above-described specific embodiments are merely examples, and those skilled in the art may combine and combine some steps and means from the above-described embodiments separately to achieve the effects of the present utility model according to the concept of the present utility model, and such combined and combined embodiments are also included in the present utility model, and such combination and combination are not described herein one by one.

Note that advantages, effects, and the like mentioned in this disclosure are merely examples and are not to be construed as necessarily essential to the various embodiments of the utility model. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the utility model is not necessarily limited to practice with the above described specific details.

The block diagrams of the devices, apparatuses, devices, systems referred to in this disclosure are merely illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "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 apparatus in the various embodiments herein is not limited to practice in a certain embodiment, and indeed, some of the apparatus in the various embodiments herein may be combined according to the inventive concept to contemplate new embodiments, which are also included in the scope of the present utility model.

The various illustrative logical blocks, modules, and circuits described herein may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an ASIC, a field programmable gate array signal (FPGA) or other Programmable Logic Device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. 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, microprocessors 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 the appended claims. For example, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired or any combination of these. Features that implement the functions may also be physically located at various locations including being distributed such that portions of the functions are implemented at different physical locations. Also, as used herein, including in the claims, the use of "or" in the recitation of items beginning with "at least one" indicates a separate recitation, such that recitation of "at least one of A, B or C" for example means a or B or C, or AB or AC or BC, or ABC (i.e., a and B and C), or AA, BB, AAA, BBB, etc. Furthermore, the term "exemplary" does not mean that the described example is preferred or better than other examples.

Various changes, substitutions, and alterations are possible to the techniques described herein without departing from the techniques of the teachings, as defined by the appended claims. Furthermore, the scope of the claims of the present disclosure is not limited to the particular aspects of the apparatus, devices, machines, manufacture, and the like described above. Devices, apparatuses, machines, manufacture, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such apparatus, devices, 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 utility model. 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 utility model. Thus, the present utility model 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, this description is not intended to limit embodiments of the utility model to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.

Claims (16)

1. A system-on-chip, characterized in that on said system-on-chip is integrated:

an interactive network television interface for receiving an interactive network television signal;

a terrestrial and/or satellite television interface for receiving terrestrial digital television signals and/or satellite television signals;

a conditional access CA module connected to the terrestrial and/or satellite television interface; and

a common television signal decoder connected to both the conditional access CA module and the interactive network television interface;

and the output interface is connected with the television signal decoder and is used for outputting the decoded television signal.

2. The system-on-chip of claim 1, wherein the common television signal decoder selects a decoding mode appropriate for the type of input television signal for decoding based on the type of input television signal.

3. The system-on-chip of claim 1, wherein the conditional access CA module comprises at least a descrambler and a decryptor.

4. The system-on-chip of claim 1, further comprising a demodulator integrated on the system-on-chip, connected to the terrestrial and/or satellite television interface and the conditional access CA module.

5. The system-on-chip of claim 4, further comprising a demultiplexer integrated on the system-on-chip and coupled to the demodulator and the conditional access CA module.

6. The system-on-chip of claim 1, further comprising a smart card integrated on the system-on-chip, coupled to the conditional access CA module, for storing decryption keys associated with a television signal carrier.

7. The system-on-chip of claim 6, further comprising a central processing unit integrated on the system-on-chip, coupled to at least the smart card, the conditional access CA module, and the television signal decoder.

8. The system-on-chip of claim 7, further comprising a memory integrated on the system-on-chip and coupled to the central processing unit.

9. The system-on-chip of claim 1, wherein the television signal decoder communicates data with the conditional access CA module and the output interface via a bus.

10. The system on a chip of claim 1, wherein the television signal decoder communicates data with the conditional access CA module and the output interface via direct memory access DMA.

11. The system-on-chip of claim 7, further comprising a common remote control signal receiver integrated on the system-on-chip and coupled to the central processing unit for receiving remote control signals.

12. The system-on-chip of claim 1, wherein the terrestrial and/or satellite television interface comprises at least one of a terrestrial digital television DTT tuner, a satellite live television DTH tuner.

13. The system-on-chip of claim 1, wherein the interactive network television interface comprises at least one of an ethernet interface and a wireless network Wifi interface.

14. A television motherboard, characterized in that it integrates a system-on-chip as claimed in any of claims 1-13.

15. A television set, the television set comprising:

a television display;

the television motherboard of claim 14.

16. The television set of claim 15, wherein the television set is an interactive web television.