WO2012119536A1 - 数字电视技术的实现方法和无线保真热点装置 - Google Patents

数字电视技术的实现方法和无线保真热点装置 Download PDF

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Publication number
WO2012119536A1
WO2012119536A1 PCT/CN2012/071968 CN2012071968W WO2012119536A1 WO 2012119536 A1 WO2012119536 A1 WO 2012119536A1 CN 2012071968 W CN2012071968 W CN 2012071968W WO 2012119536 A1 WO2012119536 A1 WO 2012119536A1
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WIPO (PCT)
Prior art keywords
stream
digital television
video stream
video
hotspot device
Prior art date
Application number
PCT/CN2012/071968
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English (en)
French (fr)
Inventor
李志刚
Original Assignee
华为终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为终端有限公司 filed Critical 华为终端有限公司
Priority to EP12755684.3A priority Critical patent/EP2667630A4/en
Priority to JP2013556954A priority patent/JP2014513452A/ja
Publication of WO2012119536A1 publication Critical patent/WO2012119536A1/zh
Priority to US14/020,655 priority patent/US20140013362A1/en

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Classifications

    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • 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
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4341—Demultiplexing of audio and video streams
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
    • 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
    • H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting

Definitions

  • the present invention relates to digital television technology, and more particularly to an implementation method of a digital television technology and a wireless fidelity hotspot device. Background technique
  • DTV digital TV
  • a terminal such as a mobile phone
  • FIG. 1 is a schematic structural diagram of a terminal of a conventional DTV-enabled terminal.
  • the DTV receiving module receives the DTV data stream from the network side device such as the base station through the antenna, and the central processing unit (CPU, Central Processing Unit) processes and decodes the DTV data stream, and plays back according to the time stamp. .
  • CPU Central Processing Unit
  • the inventors have found that at least the following technical defects exist in the prior art:
  • the charging of the DTV service is for the DTV receiving module, that is, if one user wants to be able to pass multiple terminals. When watching a DTV program, it must pay multiple times.
  • the user can watch the DTV program only after loading the DTV receiving module on the terminal; the above defects all increase the implementation complexity of the DTV technology. Summary of the invention
  • the main object of the present invention is to provide a method for implementing digital television technology, which can reduce implementation complexity.
  • a method for implementing digital television technology comprising: The wireless fidelity hotspot device decrypts and parses the received digital television data stream to obtain an audio stream, a video stream, and a system stream, and packages the obtained audio stream, video stream, and system stream in a predetermined format, using wireless fidelity technology. Sended to the terminal, the terminal decodes and plays back the received audio stream, video stream and system stream.
  • a wireless fidelity hotspot device comprising: an antenna, a digital television receiving module and a transmitting module; the digital television receiving module, configured to receive a digital television data stream through the antenna, and decrypt the received digital television data stream and Parsing, obtaining an audio stream, a video stream, and a system stream, and packaging the obtained audio stream, video stream, and system stream in a predetermined format, and sending the signal to the sending module;
  • the sending module is configured to send the packaged audio stream, the video stream, and the system stream to the terminal by using a wireless fidelity technology.
  • the digital television receiving module is loaded in the wireless fidelity hotspot device instead of the terminal, so that if a user wants to be able to watch the digital television program through multiple terminals, then only through the wireless The fidelity hotspot device can send the audio stream, the video stream and the system stream to the multiple terminals respectively, and since the charging of the digital television service is for the digital television receiving module, only one payment is required, and the user
  • the digital television program can be viewed by any terminal, and is no longer limited by whether or not the digital television receiving module is loaded in the terminal.
  • the technical solution of the present invention can better reduce the implementation complexity of the digital television technology.
  • FIG. 1 is a schematic structural diagram of a terminal of a conventional DTV-enabled terminal.
  • FIG. 2 is a flow chart of an embodiment of a method for implementing DTV technology according to the present invention.
  • FIG. 3 is a schematic structural diagram of an embodiment of an implementation system of a DTV technology according to the present invention.
  • FIG. 4 is a schematic structural diagram of an embodiment of a WiFi hotspot device according to the present invention. detailed description
  • a WiFi (Wireless Fidelity) hotspot device for receiving a DTV data stream, and according to the received
  • the DTV data stream is sent to the audio stream, the video stream, and the system stream, and sent to the terminal, where the terminal decodes and plays back the received audio stream, video stream, and system stream.
  • the number of the terminals may be one or more.
  • the WiFi hotspot device needs to obtain the audio stream
  • the video stream and the system stream are sent to the user's mobile phone, notebook and netbook respectively (the screen of the mobile phone is small, the screen resolution is generally around 640 x 480, or even smaller, and the viewing effect is worse than that of the notebook and the netbook).
  • the above WiFi hotspot device is a brand new device, such as a new product in the mobile wireless router series.
  • the WiFi hotspot device is a mixed form of WiFi and modem (Modem), has a stylish design, and has the ease of use and portability of a wireless modem.
  • Step 21 The WiFi hotspot device receives the DTV data stream, decrypts and parses it, and obtains an audio stream, a video stream, and a system stream.
  • the WiFi hotspot device can receive the DTV data stream from the network side device such as the base station through its own antenna, and decrypt it to obtain a composite stream. Then, the obtained composite stream is parsed to obtain an audio stream and a video stream. And system flow.
  • Step 22 The WiFi hotspot device packages the obtained audio stream, video stream and system stream in a predetermined format, and sends the data to the terminal by using WiFi technology.
  • the WiFi hotspot device can obtain the obtained audio stream, video stream, and system stream in a format specified by the Digital Living Network Alliance (DLAN) architecture, such as Real-time Transport Protocol (RTP).
  • DLAN Digital Living Network Alliance
  • RTP Real-time Transport Protocol
  • the specified format is packaged, and the packaged audio stream, video stream, and system stream are transmitted to the terminal using WiFi technology. Accordingly, the terminal needs to support the DLAN architecture and support WiFi technology. How to package it into existing technology.
  • Step 23 The terminal decodes and plays back the received audio stream, video stream and system stream.
  • DLAN Digital Living Network Alliance
  • RTP Real-time Transport Protocol
  • FIG. 3 is a schematic structural diagram of an embodiment of an implementation system of a DTV technology according to the present invention. As shown in FIG. 3, it includes: a WiFi hotspot device 31 and a terminal 32.
  • the WiFi hotspot device 31 is configured to decrypt and parse the DTV data stream received from the network side device such as the base station, to obtain an audio stream, a video stream, and a system stream, and obtain the obtained audio stream, video stream, and system stream according to a predetermined schedule.
  • the format is packaged and sent to the terminal 32 by using WiFi technology;
  • the terminal 32 is configured to decode and play back the received audio stream, the video stream, and the system stream.
  • the number of terminals 32 may be one or more, and two are shown in FIG.
  • FIG. 4 is a schematic structural diagram of an embodiment of a WiFi hotspot device according to the present invention. As shown in FIG. 4, the antenna 41, the DTV receiving module 42, and the transmitting module 43 are included.
  • the DTV receiving module 42 is configured to receive the DTV data stream through the antenna 41, decrypt and parse the received DTV data stream, and obtain an audio stream, a video stream, and a system stream, and the obtained audio stream, video stream, and system stream. Packed in a predetermined format, sent to the sending module 43;
  • the sending module 43 is configured to send the packaged audio stream, the video stream, and the system stream to the terminal via WiFi using WiFi technology.
  • the above predetermined format may be: A format specified by the DLAN architecture.
  • the DTV receiving module 42 may specifically include: a DTV receiving unit 421, a Conditional Access (CA) unit 422, and an APP (Application Processor) unit 423.
  • CA Conditional Access
  • APP Application Processor
  • the DTV receiving unit 421 is configured to receive the DTV data stream through the antenna 41, send it to the CA unit 422, and send the composite stream returned by the CA unit 422 to the APP unit 423;
  • the CA unit 422 is configured to decrypt the received DTV data stream to obtain a composite stream, and return it to the DTV receiving unit 421.
  • the APP unit 423 is configured to parse the received composite stream to obtain an audio stream, a video stream, and a system. Streaming, and the obtained audio stream, video stream and system stream are packaged in a predetermined format, and sent to the sending module 43;
  • the DTV receiving unit 421 is configured to receive the DTV data stream through the antenna 41, and send it to the APP unit 423;
  • the APP unit 423 is configured to send the received DTV data stream to the CA unit 422, and parse the composite stream returned by the CA unit 422 to obtain an audio stream, a video stream, and a system stream, and obtain the obtained audio stream, the video stream, and
  • the system stream is packaged in a predetermined format and sent to the sending module 43;
  • the CA unit 422 is configured to decrypt the received DTV data stream to obtain a composite stream, and return it to the APP unit 423.
  • the CA unit 422 can be connected to the DTV receiving unit 421 or the APP unit 423.
  • the CA unit 422 can be implemented in many ways, such as the China Mobile Multimedia, which is mainly promoted by the State Administration of Radio, Film and Television.
  • CMMB China Mobile Multimedia Broadcasting
  • implementations such as large cards, small cards, surface mounted devices (SMDs), and user identification cards (SIMs, Subscriber Identity Modules) have been introduced.
  • the interface between the CA unit 422 and the DTV receiving unit 421 or the APP unit 423 may be a Secure Digital Memory Card (SD) interface
  • SD Secure Digital Memory Card
  • the interface between CA unit 422 and DTV receiving unit 421 or APP unit 423 may be a SIM interface
  • the interface between the DTV receiving unit 421 and the APP unit 423 can be: a Secure Digital Input and Output Card (SDIO) interface, a Serial Peripheral Interface (SPI), or a universal serial bus. (USB, Universal Serial Bus) interface
  • the interface between the APP unit 423 and the transmitting module 43 can be an SDIO interface.
  • SDIO Secure Digital Input and Output Card
  • SPI Serial Peripheral Interface
  • USB Universal Serial Bus
  • each of the above modules and units operates under the control of the corresponding software.
  • the DTV receiving module is loaded in the WiFi hotspot device instead of the terminal, so that if a user wants to be able to watch the DTV program through multiple terminals, then the audio is only needed through the WiFi hotspot device.
  • the stream, the video stream, and the system stream are respectively sent to the plurality of terminals, and since the charge for the DTV service is for the DTV receiving module, only one payment is required, and the user can watch the DTV program through any terminal. , no longer limited by whether the terminal is loaded with a DTV receiving module, thereby better reducing the implementation complexity of the DTV technology.
  • the solution of the present invention does not need to perform additional configuration operations on the terminal, and is simple and convenient to implement, and is convenient to popularize.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Description

数字电视技术的实现方法和无线保真热点装置 本申请要求于 2011年 3月 9提交中国专利局、申请号为 201110056634.5、 发明名称为"数字电视技术的实现方法和无线保真热点装置"的中国专利申请 的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及数字电视技术，特别涉及数字电视技术的实现方法和无线保真 热点装置。 背景技术
现有技术中， 如果用户希望通过终端 （如手机） 来收看数字电视（DTV,
Digital Television )节目， 那么该终端必须支持 DTV技术， 即需要在终端上装 载一个 DTV接收模块。 图 1为现有支持 DTV技术的终端的组成结构示意图。 如图 1所示， DTV接收模块通过天线接收来自基站等网络侧设备的 DTV数 据流， 中央处理单元（ CPU, Central Processing Unit )对 DTV数据流进行解析 和解码等处理， 并按照时间戳进行回放。
发明人在实现本发明实施例的过程中发现，现有技术中至少存在以下技术 缺陷： 目前， DTV服务的收费是针对 DTV接收模块的， 也就是说， 如果一个 用户希望能够通过多个终端来收看 DTV节目， 那么其必须进行多次付费； 另 夕卜， 只有在终端上装载上 DTV接收模块后， 用户才能收看 DTV节目； 上述缺 陷均增加了 DTV技术的实现复杂度。 发明内容
有鉴于此，本发明的主要目的在于提供一种数字电视技术的实现方法， 能 够降低实现复杂度。
本发明的又一目的在于提供一种无线保真热点装置，能够降低数字电视技 术的实现复杂度。
为达到上述目的， 本发明的技术方案是这样实现的：
一种数字电视技术的实现方法， 包括： 无线保真热点装置对接收到的数字电视数据流进行解密和解析，得到音频 流、视频流和***流，将得到的音频流、视频流和***流按预定格式进行打包， 利用无线保真技术发送给终端， 由终端对接收到的音频流、视频流和***流进 行解码和回放。
一种无线保真热点装置， 包括： 天线、 数字电视接收模块和发送模块； 所述数字电视接收模块， 用于通过所述天线接收数字电视数据流，对接收 到的数字电视数据流进行解密和解析， 得到音频流、 视频流和***流， 将得到 的音频流、 视频流和***流按预定格式进行打包， 发送给所述发送模块；
所述发送模块， 用于将打包后的音频流、视频流和***流利用无线保真技 术发送给终端。
可见， 采用本发明的技术方案，将数字电视接收模块装载在无线保真热点 装置中， 而不是终端中， 这样， 如果一个用户希望能够通过多个终端来收看数 字电视节目， 那么只需通过无线保真热点装置将音频流、视频流和***流分别 发送给这多个终端即可，而由于数字电视服务的收费是针对数字电视接收模块 的， 因此只需进行一次付费即可， 而且， 用户通过任何终端均可收看数字电视 节目， 不再受该终端中是否装载有数字电视接收模块所限； 总之， 采用本发明 的技术方案， 能够较好地降低数字电视技术的实现复杂度。 附图说明
图 1为现有支持 DTV技术的终端的组成结构示意图。
图 2为本发明 DTV技术的实现方法实施例的流程图。
图 3为本发明 DTV技术的实现***实施例的组成结构示意图。
图 4为本发明 WiFi热点装置实施例的组成结构示意图。 具体实施方式
针对现有技术中存在的问题， 本发明中提出一种改进后的 DTV技术的实 现方案， 即设置一个无线保真（WiFi, Wireless Fidelity )热点装置， 用于接收 DTV数据流， 并根据接收到的 DTV数据流得到音频流、 视频流和***流， 发 送给终端， 终端对接收到的音频流、 视频流和***流进行解码和回放。 上述终端的个数可以为一个或多个， 比如， 如果用户希望能够通过手机、 笔记本和上网本均收看到 DTV节目， 那么终端的个数则为 3 , 即 WiFi热点装 置需要将得到的音频流、视频流和***流分别发送给用户的手机、笔记本和上 网本（手机的屏幕较小， 屏幕分辨率一般都在 640 x 480左右， 甚至更小， 收 看效果相比于笔记本和上网本会差一些 )。 上述 WiFi热点装置是一个全新的设备， 如可为移动无线路由器系列产品 中的一款新产品。 该 WiFi热点装置为 WiFi和调制解调器（Modem ) 混合形 态的产品， 具有时尚的外观设计， 且具备无线调制解调器的易用性和便携性。 为使本发明的技术方案更加清楚、 明白， 以下参照附图并举实施例， 对本 发明所述方案作进一步地详细说明。 图 2为本发明 DTV技术的实现方法实施例的流程图。 如图 2所示， 包括 以下步骤： 步骤 21 : WiFi热点装置接收 DTV数据流， 并对其进行解密和解析， 得到 音频流、 视频流和***流。 本步骤中， WiFi 热点装置可通过自身的天线接收来自基站等网络侧设备 的 DTV数据流， 并对其进行解密， 得到复合流； 之后， 对得到的复合流进行 解析， 得到音频流、 视频流和***流。 如何进行解密和解析均为现有技术。 步骤 22: WiFi热点装置将得到的音频流、 视频流和***流按预定格式进 行打包， 并利用 WiFi技术发送给终端。 本步骤中， WiFi 热点装置可将得到的音频流、 视频流和***流按数字生 活网络联盟 ( DLAN , Digital Living Network Alliance )架构规定的格式， 如实 时传输协议（RTP, Real-time Transport Protocol )规定的格式进行打包， 并可 将打包后的音频流、 视频流和***流利用 WiFi技术发送给终端。 相应地， 终 端需要支持 DLAN架构， 并支持 WiFi技术。 如何进行打包为现有技术。 步骤 23： 终端对接收到的音频流、 视频流和***流进行解码和回放。 在实际应用中， 为了避免在某一时刻出现数据断流的情况， 本步骤中， 可 对解码后的音频流、 视频流和***流进行一段时间的緩存， 之后再进行回放， 所述一段时间通常为 2秒。 基于上述介绍， 图 3为本发明 DTV技术的实现***实施例的组成结构示 意图。 如图 3所示， 包括： WiFi热点装置 31和终端 32。 其中， WiFi热点装置 31 ,用于对从基站等网络侧设备接收到的 DTV数据 流进行解密和解析， 得到音频流、 视频流和***流， 将得到的音频流、 视频流 和***流按预定格式进行打包， 利用 WiFi技术发送给终端 32;
终端 32 , 用于对接收到的音频流、 视频流和***流进行解码和回放。 终端 32的个数可为一个， 也可为多个， 图 3中表示出了两个。
图 4为本发明 WiFi热点装置实施例的组成结构示意图。 如图 4所示， 包 括： 天线 41、 DTV接收模块 42和发送模块 43。
其中， DTV接收模块 42, 用于通过天线 41接收 DTV数据流， 对接收到 的 DTV数据流进行解密和解析， 得到音频流、 视频流和***流， 将得到的音 频流、 视频流和***流按预定格式进行打包， 发送给发送模块 43;
发送模块 43 , 用于将打包后的音频流、 视频流和***流利用 WiFi技术通 过 WiFi发送给终端。 上述预定格式可为： DLAN架构规定的格式。
如图 4所示， DTV接收模块 42可具体包括： DTV接收单元 421、 条件接 入（ CA, Conditional Access )单元 422和应用处理（ APP, Application Processor ) 单元 423。
DTV接收单元 421 , 用于通过天线 41接收 DTV数据流，发送给 CA单元 422 , 并将 CA单元 422返回的复合流发送给 APP单元 423；
CA单元 422, 用于对接收到的 DTV数据流进行解密， 得到复合流， 返回 给 DTV接收单元 421 ; APP单元 423 , 用于对接收到的复合流进行解析， 得到音频流、 视频流和 ***流， 并将得到的音频流、 视频流和***流按预定格式进行打包， 发送给发 送模块 43; 或者， DTV接收单元 421 , 用于通过天线 41接收 DTV数据流， 发送给 APP单元 423;
APP单元 423 , 用于将接收到的 DTV数据流发送给 CA单元 422, 并对 CA单元 422返回的复合流进行解析， 得到音频流、 视频流和***流， 将得到 的音频流、 视频流和***流按预定格式进行打包， 发送给发送模块 43;
CA单元 422, 用于对接收到的 DTV数据流进行解密， 得到复合流， 返回 给 APP单元 423。 从上述介绍可以看出， CA单元 422既可和 DTV接收单元 421相连， 也 可和 APP单元 423相连； 在实际应用中， CA单元 422的实现方式有很多种， 比如广电总局主推的***多媒体广播（CMMB, China Mobile Multimedia Broadcasting )标准中就曾先后推出过大卡、小卡、表面贴装器件（ SMD, Surface Mounted Devices )和用户识别卡（ SIM, Subscriber Identity Module )等实现方 式。
当 CA单元 422的实现方式为大卡或小卡时， CA单元 422与 DTV接收单 元 421或 APP单元 423之间的接口可为安全数字记忆卡（ SD, Secure Digital Memory Card )接口， 当 CA单元 422的实现方式为 SMD或 SIM时， CA单元 422与 DTV接收单元 421或 APP单元 423之间的接口可为 SIM接口。 另外， DTV接收单元 421和 APP单元 423之间的接口可为： 安全数字输 入输出卡（ SDIO, Secure Digital Input and Output Card )接口、 同步串行接口 ( SPI, Serial Peripheral Interface )或通用串行总线（ USB, Universal Serial Bus ) 接口； APP单元 423和发送模块 43之间的接口可为 SDIO接口。
在实际应用中， 上述各模块和单元均在相应软件的控制下进行工作。 可见，采用本发明的技术方案，将 DTV接收模块装载在 WiFi热点装置中， 而不是终端中，这样，如果一个用户希望能够通过多个终端来收看 DTV节目， 那么只需通过 WiFi热点装置将音频流、 视频流和***流分别发送给这多个终 端即可，而由于 DTV服务的收费是针对 DTV接收模块的， 因此只需进行一次 付费即可， 而且， 用户通过任何终端均可收看 DTV节目， 不再受该终端中是 否装载有 DTV接收模块所限，从而较好地降低了 DTV技术的实现复杂度。另 夕卜， 本发明所述方案无需对终端进行额外的配置等操作， 实现起来简单方便， 便于普及。
以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发 明的精神和原则之内， 所做的任何修改、 等同替换、 改进等， 均应包含在本发 明保护的范围之内。

Claims

权 利 要 求
1、 一种数字电视技术的实现方法， 其特征在于， 包括：
无线保真热点装置对接收到的数字电视数据流进行解密和解析，得到音频 流、视频流和***流，将得到的音频流、视频流和***流按预定格式进行打包， 利用无线保真技术发送给终端， 由终端对接收到的音频流、视频流和***流进 行解码和回放。
2、 根据权利要求 1所述的方法， 其特征在于， 所述对接收到的数字电视数 据流进行解密和解析， 得到音频流、 视频流和***流包括：
对接收到的数字电视数据流进行解密， 得到复合流；
对得到的复合流进行解析， 得到音频流、 视频流和***流。
3、 根据权利要求 1所述的方法， 其特征在于， 所述将得到的音频流、 视频 流和***流按预定格式进行打包包括：
将得到的音频流、视频流和***流按数字生活网络联盟架构规定的格式进 行打包。
4、 根据权利要求 1 ~ 3中任一项所述的方法， 其特征在于， 所述进行回放 之前， 进一步包括：
所述终端对解码后的音频流、视频流和***流进行一段时间的緩存，之后 再进行回放。
5、 一种无线保真热点装置， 其特征在于， 包括： 天线、 数字电视接收模 块和发送模块；
所述数字电视接收模块， 用于通过所述天线接收数字电视数据流，对接收 到的数字电视数据流进行解密和解析， 得到音频流、 视频流和***流， 将得到 的音频流、 视频流和***流按预定格式进行打包， 发送给所述发送模块；
所述发送模块， 用于将打包后的音频流、视频流和***流利用无线保真技 术发送给终端。
6、 根据权利要求 5所述的无线保真热点装置， 其特征在于， 所述数字电视 接收模块包括： 数字电视接收单元、 条件接入单元和应用处理单元；
所述数字电视接收单元， 用于通过所述天线接收数字电视数据流，发送给 所述条件接入单元 ,并将所述条件接入单元返回的复合流发送给所述应用处理 单元； 所述条件接入单元，用于对接收到的数字电视数据流进行解密，得到复合 流， 返回给所述数字电视接收单元；
所述应用处理单元， 用于对接收到的复合流进行解析， 得到音频流、 视频 流和***流， 并将得到的音频流、视频流和***流按预定格式进行打包， 发送 给所述发送模块；
或者，
所述数字电视接收单元， 用于通过所述天线接收数字电视数据流，发送给 所述应用处理单元；
所述应用处理单元，用于将接收到的数字电视数据流发送给所述条件接入 单元， 并对所述条件接入单元返回的复合流进行解析， 得到音频流、 视频流和 ***流， 将得到的音频流、视频流和***流按预定格式进行打包， 发送给所述 发送模块；
所述条件接入单元，用于对接收到的数字电视数据流进行解密，得到复合 流， 返回给所述应用处理单元。
7、 根据权利要求 6所述的无线保真热点装置， 其特征在于，
所述数字电视接收单元和所述应用处理单元之间的接口为以下之一：安全 数字输入输出卡接口、 同步串行接口、 通用串行总线接口；
所述应用处理单元和所述发送模块之间的接口为安全数字输入输出卡接 口；
所述条件接入单元和所述数字电视接收单元或所述应用处理单元之间的 接口为以下之一： 安全数字记忆卡接口、 用户识别卡接口。
8、 根据权利要求 5所述的无线保真热点装置， 其特征在于， 所述预定格式 为： 数字生活网络联盟架构规定的格式。
9、 根据权利要求 5或 8所述的无线保真热点装置， 其特征在于， 所述无线 保真热点装置为： 移动无线路由器。
PCT/CN2012/071968 2011-03-09 2012-03-06 数字电视技术的实现方法和无线保真热点装置 WO2012119536A1 (zh)

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