WO2017092700A1 - Procédé et système de réception de condition pour système d'exploitation intelligent - Google Patents

Procédé et système de réception de condition pour système d'exploitation intelligent Download PDF

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Publication number
WO2017092700A1
WO2017092700A1 PCT/CN2016/108263 CN2016108263W WO2017092700A1 WO 2017092700 A1 WO2017092700 A1 WO 2017092700A1 CN 2016108263 W CN2016108263 W CN 2016108263W WO 2017092700 A1 WO2017092700 A1 WO 2017092700A1
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Prior art keywords
identifier
module
channel
information
digital television
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PCT/CN2016/108263
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English (en)
Chinese (zh)
Inventor
盛志凡
黎政
王强
熊彬
孟庆康
杨勍
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国家新闻出版广电总局广播科学研究院
北京数码视讯科技股份有限公司
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Publication of WO2017092700A1 publication Critical patent/WO2017092700A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4627—Rights management associated to the content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]

Definitions

  • the present invention relates to the field of conditional access technologies, and in particular, to a condition receiving method and system for an intelligent operating system.
  • DCAS Downloadable Conditional Access System
  • the digital TV set-top box only needs to download the client software of different DCAS systems to realize the switching and adaptation of different DCAS systems, so as to break the current situation of customizing the set-top box of each wired network, and realize the standardized scale production of the set-top box.
  • a condition receiving method for an intelligent operating system is provided, which is implemented in a smart device in which an intelligent operating system is installed, where the smart device includes a live broadcast application.
  • the module, the conditional receiving application module, the digital television module, the media playing module, the conditional receiving module, and the high-amplifier chip, the method includes:
  • the digital television module acquires a list of all channel programs and provides the live application module for display;
  • the live application module sends the switched channel program identifier to the media play module in response to the user's channel change command or program play command;
  • the digital television module acquires all channel information and control management information, where the channel information includes a channel program identifier, a video stream identifier videoPid of each channel, and an audio stream identifier audioPid, and the control management information includes a conditional access application identifier casId and an authorization control.
  • the media playing module acquires a video stream identifier videoPid, an audio stream identifier audioPid, a conditional access application identifier casId, an authorization control information identifier ecmPid, and an authorization management information identifier emmPid of the channel program from the digital television module according to the obtained channel program identifier.
  • the condition receiving module selects, according to the received condition receiving application identifier casId, a conditional receiving application module that is registered in the smart operating system and matches the conditional receiving application identifier casId, and simultaneously identifies a video stream of the channel as a videoPid
  • the audio stream identifier audioPid, the authorization control information identifier ecmPid, the authorization management information identifier emmPid, and the descrambler information Descramblerid are sent to the conditional access application module;
  • the conditional receiving application module acquires corresponding authorization control information data ecm Data and authorization management information data emm Data from the digital television module according to the obtained authorization control information identifier ecmPid and the authorization management information identifier emmPid and receives according to the condition Applying the mechanism preset by the module, so that the encryption level key EK1, EK2 and the encryption control word ECW are obtained, and the video stream identifier videoPid, the audio stream identifier audioPid, and the descrambler information Descramblerid are sent to the condition receiving module;
  • the condition receiving module sets the encryption level key EK1, EK2, and the encryption control word ECW Transmitting to the high-definition chip with the video stream identifier videoPid, the audio stream identifier audioPid, and the descrambler information Descramblerid;
  • the high-definition chip descrambles and scrambles the scrambled channel program data according to the encryption level key EK1, EK2, the encryption control word ECW, the video stream identifier videoPid, the audio stream identifier audioPid, and the descrambler information DescramblerID. Stream data and audio stream data are played.
  • the channel program identifier includes an original network identifier onid of the channel, a transport stream identifier tsid, and a service identifier sid.
  • the channel information acquired in the step of acquiring the entire channel information and the control management information by the digital television module includes whether the channel is the identifier CAMode of the scrambled channel;
  • the method further includes:
  • the media playing module queries the digital television module according to the channel program identifier to obtain whether the channel is the identifier CAMode of the scrambled channel, and determines whether the channel is a scramble channel according to the identifier CAMode:
  • the media playing module acquires the video stream identifier videoPid and the audio stream identifier audioPid of the channel from the digital television module, and enters a playing step;
  • the media playing module acquires a video stream identifier videoPid, an audio stream identifier audioPid, a conditional access application identifier casId, and an authorization control information identifier of the channel from the digital television module.
  • the ecmPid and the authorization management information identify the emmPid.
  • the digital television module, the media playing module and the conditional receiving module are component layer components preset in an operating system.
  • the digital television module, the media playing module and the conditional receiving module are implemented as a client-service structure, and an IPC calling mode is used between the client and the service.
  • conditional receiving application module and the live application module are applications that can be installed or uninstalled in the smart operating system.
  • conditional access application module is provided by a conditional receiving manufacturer.
  • a conditional access system for an intelligent operating system is provided, the system being executed in a smart device in which a smart operating system is installed, the smart device including a live application module and a conditional access application module , digital TV module, media player module, conditional access module and Gaoan chip, among which:
  • the digital television module is configured to obtain a list of all channel programs and provide the live application module for display, and obtain all channel information and control management information, where the channel information includes a channel program identifier, and a video stream identifier videoPid of each channel.
  • the audio stream identifier audioPid, the control management information includes a conditional access application identifier casId, an authorization control information identifier ecmPid, and an authorization management information identifier emmPid;
  • the live application module is configured to send the switched channel program identifier to the media play module in response to a user's channel change command or a program play command;
  • the media playing module is configured to acquire a video stream identifier videoPid, an audio stream identifier audioPid, a conditional access application identifier casId, an authorization control information identifier ecmPid, and an authorization management of the channel program from the digital television module according to the obtained channel program identifier.
  • the information identifies the emmPid, and allocates the information Descramblerid of the descrambler to be used by the channel program, and identifies the video stream identifier videoPid of the channel, the audio stream identifier audioPid, the conditional access application identifier casId, the authorization control information identifier ecmPid, and the authorization management.
  • the information identifier emmPid and the descrambler information Descramblerid are transmitted together to the condition receiving module;
  • condition receiving module configured to select, according to the received condition receiving application identifier casId, a conditional receiving application module registered in the smart operating system that matches the conditional receiving application identifier casId, and simultaneously identify a video stream of the channel
  • the videoPid, the audio stream identifier audioPid, the authorization control information identifier ecmPid, the authorization management information identifier emmPid, and the descrambler information Descramblerid are sent to the conditional access application module;
  • conditional receiving application module configured to acquire, according to the obtained authorization control information identifier ecmPid, the authorization management information identifier emmPid, the corresponding authorization control information data ecm Data and the authorization management information data emm Data to the digital television module according to the condition Receiving the mechanism parsing of the application module preset, thereby obtaining the encryption level key EK1, EK2 and the encryption control word ECW together with the video stream identifier videoPid of the channel, the audio stream identifier audioPid, and the descrambler information Descramblerid sent to the condition receiving module ;
  • the condition receiving module is further configured to send the encryption level key EK1, EK2, an encryption control word ECW, the video stream identifier videoPid, an audio stream identifier audioPid, and a descrambler information Descramblerid to the high security chip, by the high security
  • the chip descrambles the scrambled channel program data according to the encryption level key EK1, EK2, the encryption control word ECW, the video stream identifier videoPid, the audio stream identifier audioPid, and the descrambler information DescramblerID, and the video stream data and Audio stream data is played.
  • the channel program identifier includes an original network identifier onid of the channel, a transport stream identifier tsid, and a service identifier sid.
  • all channel information acquired by the digital television module includes whether each channel is an identifier CAMode of a scrambled channel
  • the media playing module is further configured to query, according to the channel program identifier, the digital television module to query whether the channel is the identifier CAMode of the scrambled channel, and determine, according to the identifier CAMode, whether the channel is a scrambled channel:
  • the media playing module acquires a video stream identifier videoPid and an audio stream identifier audioPid of the channel from the digital television module, and plays by the player;
  • the media playing module acquires a video stream identifier videoPid, an audio stream identifier audioPid, a conditional access application identifier casId, and an authorization control information identifier of the channel from the digital television module.
  • the ecmPid and the authorization management information identify the emmPid.
  • the digital television module, the media playing module and the conditional receiving module are component layer components preset in an operating system.
  • the digital television module, the media playing module and the conditional receiving module are implemented as a client-service structure, and an IPC calling mode is used between the client and the service.
  • conditional receiving application module and the live application module are applications that can be installed or uninstalled in the smart operating system.
  • conditional access application module is provided by a conditional receiving manufacturer.
  • FIG. 1 shows a block diagram of a hardware configuration of a smart TV 1000 in which an embodiment of the present invention can be implemented.
  • FIG. 2 shows a flow chart of a condition receiving method for a smart operating system according to an embodiment of the present invention
  • FIG. 3 shows a block diagram of a conditional access system for a smart operating system in accordance with an embodiment of the present invention.
  • FIG. 1 is a block diagram showing a hardware configuration of a smart TV 1000 in which an embodiment of the present invention can be implemented.
  • the smart television 1000 typically includes a main processor 1108 connected via a system bus 1111, a tuner 1101 for receiving television signals, a demodulator 1102, a non-volatile memory 1109, and a demultiplexer. 1103, descrambler 1104, volatile memory 1105, decoder 1106, audio and video interface 1107, and other peripheral interfaces 1110, and display 1200 are also included in the smart TV integrated with the television and the set top box.
  • a non-volatile memory 1109 resides in a smart operating system, applications, other program modules, and certain program data.
  • the smart television shown in Figure 1 is merely illustrative and is in no way meant to limit the invention, its application or use.
  • a condition receiving method for an intelligent operating system is provided, which is implemented in a smart device in which the smart operating system 2100 is installed.
  • the smart device may be, for example, a smart TV 2000, which includes a live application module 2200, a conditional access application module 2300, a digital television module 2400, a media play module 2500, a conditional access module 2600, and a high security chip 2700.
  • the method according to the first embodiment of the present invention includes the following steps: S1: The digital television module 2400 obtains a list of all channel programs and provides them to the live application module 2200 for display.
  • the channel program list is obtained by the digital television module 2400 from the head end server of the conditional receiving system after the smart TV is powered on, and carries basic information for presenting the channel program interface to the user.
  • the live application module 2200 sends the switched channel program identifier to the media play module 2500 in response to the user's channel change command or program play command.
  • the channel program identifier includes DVB element information of the channel.
  • the DVB element information is an identifier for uniquely determining a program.
  • the element information includes: original network identifier original network id (onid), transport stream identifier transport Stream id(tsid) and service identifier service Id(sid).
  • the digital television module 2400 acquires all channel information and control management information, where the channel information includes a channel program identifier, a video stream identifier videoPid of each channel, and an audio stream identifier audioPid, and the control management information includes a conditional access application identifier casId
  • the authorization control information identifies the ecmPid and the authorization management information identifier emmPid.
  • the entire channel information and control management information is also obtained by the digital television module 2400 from the headend server of the conditional access system after the smart TV is powered on.
  • the channel information includes a channel program identifier, in particular, a DVB element identifier, a video stream identifier videoPid of each channel, and an audio stream identifier audioPid.
  • the control management information includes a conditional access application identifier casId, an authorization control information identifier ecmPid, and an authorization management information identifier. emmPid.
  • the media playing module 2500 acquires the video stream identifier videoPid, the audio stream identifier audioPid, the conditional access application identifier casId, the authorization control information identifier ecmPid, and the authorization of the channel program from the digital television module 2400 according to the acquired channel program identifier.
  • the management information identifies the emmPid, and allocates the information Descramblerid of the descrambler to be used by the channel program, and identifies the video stream identifier videoPid, audio stream identifier audioPid, conditional access application identifier casId, authorization control information identifier ecmPid, authorization of the channel.
  • the management information identifier emmPid and the descrambler information Descramblerid are transmitted to the conditional receiving module 2600.
  • condition receiving module 2600 selects, according to the received condition receiving application identifier casId, a conditional receiving application module 2300 registered in the smart operating system that matches the conditional receiving application identifier casId, and simultaneously
  • the video stream identifier videoPid, the audio stream identifier audioPid, the authorization control information identifier ecmPid, the authorization management information identifier emmPid, and the descrambler information Descramblerid are sent to the conditional access application module 2300.
  • conditional access application module 2300 registered in the smart operating system may be multiple, provided by different conditional receiving vendors, by pre-installing or downloading and installing in the smart operating system. Registered in, and can receive switching between application modules under different conditions according to the user's viewing needs.
  • the different conditional receiving application modules can carry the authorization control information, the authorization management information, and the encryption control word parsing manner of the different conditions of the receiving factory. When the conditional receiving application module of a certain condition receiving vendor is loaded, the entire intelligent operating system goes from the software to the software.
  • the hardware can be fully adapted to the conditional receiving mechanism of the conditional receiving vendor, and can be The same condition is freely switched between the receiving manufacturers, thereby continuing to support the beneficial effects that the existing DCAS (Downloadable Conditional Receiving System) has achieved in multi-vendor free switching and adaptation on the intelligent operating system.
  • DCAS Downloadable Conditional Receiving System
  • the conditional access application module 2300 obtains the corresponding authorization control information data ecm Data and the authorization management information data emm Data from the digital television module 2400 according to the obtained authorization control information identifier ecmPid and the authorization management information identifier emmPid. And the conditional receiving application module preset mechanism parsing, so as to obtain the encryption level key EK1, EK2 and the encryption control word ECW, together with the video stream identifier videoPid of the channel, the audio stream identifier audioPid, and the descrambler information Descramblerid are sent to the Condition receiving module 2600.
  • the condition receiving module 2600 sends the encryption level key EK1, EK2, the encryption control word ECW and the video stream identification videoPid, the audio stream identifier audioPid and the descrambler information Descramblerid to the high security chip 2700;
  • the high-anchor chip 2700 controls the descrambler specified by the descrambler information DescramblerID according to the encryption level key EK1, EK2, the encryption control word ECW, the video stream identifier videoPid, and the audio stream identifier audioPid (not shown).
  • the descrambled channel program data is descrambled and the video stream data and the audio stream data are played.
  • the digital television module 2400, the media playing module 2500 and the condition receiving module 2600 are component layer components preset in the operating system, thereby ensuring the support of the smart TV at the component layer to the application layer.
  • the digital television module 2400, the media playing module 2500 and the conditional receiving module 2600 are implemented as a client-service structure, and an IPC calling mode is used between the client and the service.
  • conditional access application module 2300 and the live application module 2200 are applications that can be installed or uninstalled in the smart operating system.
  • a standardized DCAS interface can be provided between the condition receiving module 2600 and the conditional receiving application module 2300.
  • the conditional access application module 2300 invokes the corresponding function of the conditional access module 2600.
  • the digital television mode can also be used
  • a standardized filtering interface is provided between the block 2400 and the conditional access application module 2300, and a standardized media unit interface can be provided between the media playback module 2500 and the live application module 2200.
  • the smart operating system especially the smart TV operating system, has an application layer that is usually implemented in Java and the operating system is generally implemented as C below, it is more preferable that the standardized interface and each digital television module 2400 are A JNI call interface is provided between the media play module 2500 and the conditional access module 2600 for implementing Java-C communication and mapping.
  • This embodiment provides an intelligent operating system as a whole framework, and provides a method for implementing a conditional access system in an intelligent operating system, which not only provides conditional reception suitable for intelligent operating system implementation, but also enables multiple manufacturers to switch freely in the existing conditional receiving system.
  • the benefits that have been achieved with adaptations can continue to be maintained in smart operating systems.
  • conditional receiving method that is freely adaptable in a conditional reception scenario and an unconditional reception scenario.
  • a television program is divided into a scrambled program (conditional receiving program) and a non-scrambled program.
  • the playback device can directly acquire video stream data and audio stream data of the corresponding program for playback.
  • the method according to the second embodiment of the present invention may be in the step of acquiring all channel information and control management information by the digital television module of S3.
  • the acquired channel information includes whether each channel is an identifier CAMode of a scrambled channel;
  • step S4 the media playing module 2400 first queries the digital television module 2400 according to the channel program identifier, and obtains whether the channel is the identifier CAMode of the scrambled channel, and determines whether the channel is added according to the identifier CAMode.
  • Disturbing channel :
  • the media playing module The 2500 obtains the video stream identifier videoPid and the audio stream identifier audioPid of the channel from the digital television module 2400, and provides the high-definition chip 2700 for playing;
  • the media playing module 2500 acquires the video stream identifier videoPid, the audio stream identifier audioPid, the conditional access application identifier casId, and the authorization control of the channel from the digital television module 2400.
  • a second embodiment of the present invention describes a method for implementing playback in an intelligent operating system in both the conditional and non-scrambling scenarios.
  • the method in this embodiment can be used in both conditional and non-scrambling scenarios. Free adaptation under the system further improves system compatibility and ease of use.
  • the invention can be a system, method and/or computer program product.
  • the computer program product can comprise a computer readable storage medium having computer readable program instructions embodied thereon for causing a processor to implement various aspects of the present invention.
  • the computer readable storage medium can be a tangible device that can hold and store the instructions used by the instruction execution device.
  • the computer readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing.
  • Non-exhaustive list of computer readable storage media include: portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM) Or flash memory), static random access memory (SRAM), portable compact disk read only memory (CD-ROM), digital versatile disk (DVD), memory stick, floppy disk, mechanical encoding device, for example, with instructions stored thereon A raised structure in the hole card or groove, and any suitable combination of the above.
  • a computer readable storage medium as used herein is not to be interpreted as a transient signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (eg, a light pulse through a fiber optic cable), or through a wire The electrical signal transmitted.
  • the computer readable program instructions described herein can be downloaded from a computer readable storage medium to various computing/processing devices or downloaded to an external computer or external storage device over a network, such as the Internet, a local area network, a wide area network, and/or a wireless network.
  • the network may include copper transmission cables, fiber optic transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and/or edge servers.
  • the network adapter card or network interface in each computing/processing device is readable from the network receiving computer
  • the program instructions and forward the computer readable program instructions for storage in a computer readable storage medium in each computing/processing device.
  • Computer program instructions for performing the operations of the present invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine related instructions, microcode, firmware instructions, state setting data, or in one or more programming languages.
  • the computer readable program instructions can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer, partly on the remote computer, or entirely on the remote computer or server. carried out.
  • the remote computer can be connected to the user's computer through any kind of network, including a local area network (LAN) or wide area network (WAN), or can be connected to an external computer (eg, using an Internet service provider to access the Internet) connection).
  • the customized electronic circuit such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), can be customized by utilizing state information of computer readable program instructions.
  • Computer readable program instructions are executed to implement various aspects of the present invention.
  • the computer readable program instructions can be provided to a general purpose computer, a special purpose computer, or a processor of other programmable data processing apparatus to produce a machine such that when executed by a processor of a computer or other programmable data processing apparatus Means for implementing the functions/acts specified in one or more of the blocks of the flowcharts and/or block diagrams.
  • the computer readable program instructions can also be stored in a computer readable storage medium that causes the computer, programmable data processing device, and/or other device to operate in a particular manner, such that the computer readable medium storing the instructions includes An article of manufacture that includes instructions for implementing various aspects of the functions/acts recited in one or more of the flowcharts.
  • Computer readable program instructions can also be loaded into a computer, other programmable data processing equipment Or a device, such that a series of operational steps are performed on a computer, other programmable data processing device, or other device to produce a computer-implemented process for use on a computer, other programmable data processing device, or other device
  • the executed instructions implement the functions/acts specified in one or more of the flowcharts and/or block diagrams.
  • each block in the flowchart or block diagram can represent a module, a program segment, or a portion of an instruction that includes one or more components for implementing the specified logical functions.
  • Executable instructions can also occur in a different order than those illustrated in the drawings. For example, two consecutive blocks may be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending upon the functionality involved.
  • each block of the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts can be implemented in a dedicated hardware-based system that performs the specified function or function. Or it can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, implementation by software, and implementation by a combination of software and hardware are equivalent.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La présente invention concerne un procédé de réception de condition pour un système d'exploitation intelligent, comprenant les étapes suivantes: en réponse à une instruction de commutation de programme, la transmission par un module d'application de diffusion en direct d'un identifiant d'un programme canal à un module de lecture multimédia; l'acquisition par un module de télévision numérique d'information de tous les canaux et d'information de commande et de gestion; l'acquisition par un module de lecture multimédia, en fonction de l'identifiant acquis du programme canal, d'un identifiant de paquet vidéo, d'un identifiant de paquet audio, d'un identifiant CAS, d'un identifiant de serveur ECM et d'un identifiant de serveur EMM du programme canal à partir du module de télévision numérique, et l'allocation d'un identifiant de désembrouilleur à un désembrouilleur et leur transfert conjoint à un module de réception de condition; la sélection par le module de réception de condition d'un module d'application de réception de condition enregistré selon l'identifiant CAS, et la transmission de l'identifiant de paquet vidéo, l'identifiant de paquet audio, l'identifiant de serveur ECM, l'identifiant de serveur EMM et l'identifiant de désembrouilleur du canal au module d'application de réception de condition; l'acquisition par le module d'application de réception de condition, en fonction de l'identifiant de serveur ECM et l'identifiant de serveur EMM, des données de serveur ECM et de serveur EMM correspondantes provenant du module de télévision numérique, pour l'obtention d'un EK1, EK2 et ECW et leur transmission au module de réception de condition conjointement avec l'identifiant de paquet vidéo, l'identifiant de paquet audio et l'identifiant de désembrouilleur; la transmission par le module de réception de condition de cette information à une puce hautement sécurisée; et la commande par la puce hautement sécurisée, en fonction de l'information obtenue, du désembrouilleur correspondant à l'identifiant de désembrouilleur pour le désembrouillage et la lecture des données de programme canal.
PCT/CN2016/108263 2015-12-03 2016-12-01 Procédé et système de réception de condition pour système d'exploitation intelligent WO2017092700A1 (fr)

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