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Design and Implementation of SimulCrypt Synchronization Control Software in DTV Conditional Access System

机译:DTV条件访问系统中Simulcrypt Synchronization软件的设计与实现

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摘要

SimulCrypt Synchronizer is one of the key equipments to make up of DTV Condition Access system. This article is based on Specification of Conditional Access System for Digital Television Broadcasting, It has proposed the methods of reduplicated SCG ID processing, synchronization of control word and crypto period, as well as circular communication of multi-stream. Moreover, using these methods it has realized SimulCrypt synchronization control System on embedded CPU "Nios II".
机译:Simulcrypt Synchronizer是组成DTV条件接入系统的关键设备之一。本文基于用于数字电视广播的条件访问系统规范,提出了重复的SCG ID处理,控制字和加密时段的同步的方法,以及多流的循环通信。此外,使用这些方法,它已经实现了嵌入式CPU“NIOS II”的Simulcrypt同步控制系统。

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