System, method and gateway device for secure reception and distribution of broadcast and television content

Abstract

The invention discloses a system, method and gateway device for safely receiving and distributing radio and television content. The method adopts the combination of CAS and DRM technology, so that the radio and television content is scrambled and transmitted from the head-end system to the gateway system for descrambling and unscrambled. All processes of re-scrambling and distribution to various terminal devices for consumption are effectively protected. This method is compatible with the existing deployed CAS system, ensures the security of content transmission and use, and maintains the security of content providers and operators. At the same time, various terminal devices can also play broadcast and TV content according to the user's subscription rights, which improves the user's impulse consumption desire and increases the operator's income.

Description

technical field [0001] The invention relates to the protection technology of radio and television content, in particular to a system, method and gateway device for safely receiving and distributing radio and television content. Background technique [0002] The triple play technology (telecom network, computer network and radio and television network) can support more interactive integrated services and provide more value-added services for various emerging terminal devices (such as iPhone, iPad, Android mobile devices, etc.). It has also gradually changed the way people consume video. figure 1 It is a schematic diagram of broadcasting and television network systems distributing program content to various terminal devices for viewing in the prior art. The head-end system scrambles the program / content and transmits it to the gateway device through the IP channel of the wired network. The gateway device unpacks the program / content and transmits the multicast to various smart ...

AI Technical Summary

Problems solved by technology

This technology relies on the Internet for user authentication management. The smart terminal first applies for a user account from the head-end system and downloads the enterprise-specific client software, logs in with the dedicated software, and performs identity verification on the head-end system. After passing the authentication, the user can directly communicate with the gateway device. To interact and watch cable programs / content, but this technology also has the following defects: (1) At present, most of the domestic radio and television systems are one-way systems, and its terminal equipment is limited to all-in-one TVs or set-top boxes + TVs

In order to transmit the content of one-way transmission of radio and television to the above-mentioned general-purpose terminal equipment, a wired two-way network must be used, which requires two-way transformation of the network; (2) The content of TV programs transmitted between the head-end system and the gateway equipment usually uses the CAS system protection, but only basic account management is provided on various terminal devices, and clear stream transmission is used between gateway devices and user terminals, which cannot protect the security of programs / contents during this period. Once piracy occurs, content providers and the interests of operators will be greatly damaged

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