CN1476724A - 有线电视网的加密系统 - Google Patents

有线电视网的加密系统 Download PDF

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Publication number
CN1476724A
CN1476724A CNA018195415A CN01819541A CN1476724A CN 1476724 A CN1476724 A CN 1476724A CN A018195415 A CNA018195415 A CN A018195415A CN 01819541 A CN01819541 A CN 01819541A CN 1476724 A CN1476724 A CN 1476724A
Authority
CN
China
Prior art keywords
encryption
memory
algorithm
encryption system
conditional access
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CNA018195415A
Other languages
English (en)
Inventor
勤 张
张勤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cathay Roxus Information Technology Co ltd
Original Assignee
Cathay Roxus Information Technology Co ltd
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.)
Filing date
Publication date
Application filed by Cathay Roxus Information Technology Co ltd filed Critical Cathay Roxus Information Technology Co ltd
Priority to CNA018195415A priority Critical patent/CN1476724A/zh
Publication of CN1476724A publication Critical patent/CN1476724A/zh
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
    • H04N21/23895—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/42615—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific demultiplexing arrangements
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/42623—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific decryption arrangements
    • 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
    • H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
    • 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]

Landscapes

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

Abstract

本发明提供一种加密系统，包括：前端系统、网络系统、用户终端系统，所述前端系统包括条件接入服务器、复用器，所述用户终端系统包括码流接收器、输出装置，所述前端系统还包括加扰器，所述加扰器由数字信号处理器和存储器构成，根据条件接入服务器的指令，通过调用存储器中的相应程序，来完成加扰功能；所述用户终端系统包括由数字信号处理器和存储器构成的解复用器、解扰器和解码器，其解复用、解扰、解码的功能通过数字信号处理器调用存储器中的相应程序来完成。本发明能够方便地进行更换加扰算法操作，而不必更换加扰芯片与解扰芯片，并且可不必更换加密系统的硬件部分而实现功能的扩展与升级，满足开放性、灵活性的需求。

Description

PCT国内申请，说明书已公开。

Claims (1)

  1. PCT国内申请，权利要求书已公开。
CNA018195415A 2000-11-28 2001-11-28 有线电视网的加密系统 Pending CN1476724A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA018195415A CN1476724A (zh) 2000-11-28 2001-11-28 有线电视网的加密系统

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN00132565.5 2000-11-28
CN 00132565 CN1355654A (zh) 2000-11-28 2000-11-28 有线电视网的加密系统
CNA018195415A CN1476724A (zh) 2000-11-28 2001-11-28 有线电视网的加密系统

Publications (1)

Publication Number Publication Date
CN1476724A true CN1476724A (zh) 2004-02-18

Family

ID=4595239

Family Applications (2)

Application Number Title Priority Date Filing Date
CN 00132565 Pending CN1355654A (zh) 2000-11-28 2000-11-28 有线电视网的加密系统
CNA018195415A Pending CN1476724A (zh) 2000-11-28 2001-11-28 有线电视网的加密系统

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN 00132565 Pending CN1355654A (zh) 2000-11-28 2000-11-28 有线电视网的加密系统

Country Status (3)

Country Link
CN (2) CN1355654A (zh)
AU (1) AU2002221506A1 (zh)
WO (1) WO2002045428A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016090990A1 (zh) * 2014-12-08 2016-06-16 深圳Tcl数字技术有限公司 加扰传送流的解扰方法及系统

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7215770B2 (en) * 2002-01-02 2007-05-08 Sony Corporation System and method for partially encrypted multimedia stream
CN101009549B (zh) * 2006-01-26 2010-07-14 中国科学院计算技术研究所 用于数字版权管理的解码装置
CN100584008C (zh) * 2006-05-09 2010-01-20 中国科学院研究生院 有扰、无扰传输流实时认证装置及带有该装置的电视设备
US7962638B2 (en) * 2007-03-26 2011-06-14 International Business Machines Corporation Data stream filters and plug-ins for storage managers
CN101056393B (zh) * 2007-04-20 2010-06-16 中兴通讯股份有限公司 数据解扰方法和系统
CN100562098C (zh) * 2008-01-03 2009-11-18 济南市泰信电子有限责任公司 数字电视条件接收系统及其处理流程
CN105512573B (zh) * 2015-11-24 2019-02-05 深圳国微技术有限公司 一种抗攻击的仲裁器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1134645A (zh) * 1995-04-25 1996-10-30 冯钧 有线电视的加密方法
AU5781599A (en) * 1998-08-23 2000-03-14 Open Entertainment, Inc. Transaction system for transporting media files from content provider sources tohome entertainment devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016090990A1 (zh) * 2014-12-08 2016-06-16 深圳Tcl数字技术有限公司 加扰传送流的解扰方法及系统
CN105744354A (zh) * 2014-12-08 2016-07-06 深圳Tcl数字技术有限公司 加扰传送流的解扰方法及系统
CN105744354B (zh) * 2014-12-08 2018-11-16 深圳Tcl数字技术有限公司 加扰传送流的解扰方法及系统

Also Published As

Publication number Publication date
AU2002221506A1 (en) 2002-06-11
WO2002045428A1 (fr) 2002-06-06
CN1355654A (zh) 2002-06-26

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C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication