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IPTV system, enciphered digital program issuing and watching method

A program and digital technology, applied in the field of IPTV, can solve problems such as difficult to realize the safe transmission of IPTV digital programs, and achieve the effect of preventing leakage and realizing safe transmission

Active Publication Date: 2009-02-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the concept of digital rights management (DRM) has been proposed. Its main task is to ensure that the content of digital programs is not illegally copied through necessary technical means, and to protect the interests of IPTV program providers and operators. The program is encrypted and transmitted, and the set-top box on the user side decrypts and restores it to audio and video signals for viewing, so that illegal users cannot steal and copy digital programs from the network
However, a specific solution for implementing DRM in IPTV has not been provided so far, making it difficult to realize the safe transmission of IPTV digital programs

Method used

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  • IPTV system, enciphered digital program issuing and watching method
  • IPTV system, enciphered digital program issuing and watching method
  • IPTV system, enciphered digital program issuing and watching method

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Embodiment Construction

[0051] First of all, the present invention provides an IPTV system that realizes the digital copyright protection function. The IPTV system adds digital copyright management on the basis of the existing IPTV system platform (CO+CS+CM+SM+EPG+STB). The system (DRMS, Digital Right Management System) realizes the function of digital copyright protection. The DRMS ​​of the present invention includes CE, KM, CA, RM, and DA, which will be described in detail later.

[0052] see below figure 1 The shown IPTV system describes in detail the various units (or referred to as subsystems) included in the IPTV system of the present invention, including the following units:

[0053] Content Origin (CO, Content Origin): The content origin is responsible for providing unencrypted digital program media (such as MPEG4, H264, MP3, etc. program files or RTP streams) that meet the requirements of the IPTV streaming media encoding format. When a content provider can provide digital program media th...

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Abstract

An IPTV system comprises content source CO, content service unit CS, content management unit CM, service management unit SM, single-way guide unit EPG of electronic program, top box STB, content enciphering unit CE, cipher key management unit KM and authorization management unit RM for providing enciphered program. The method of issuing and viewing enciphered program is also disclosed.

Description

technical field [0001] The invention relates to the field of IPTV, in particular to an IPTV system, an encrypted digital program publishing and watching method. Background technique [0002] IPTV is a data value-added service that provides users with interactive TV and multimedia services through the IP data network with "TV + set-top box" as the main terminal equipment. The IPTV service system can provide various data services such as audio and video on demand, audio and video broadcasting, distance education, games, FLASH, and videophone. [0003] The IPTV system mainly includes: a TV set, a set-top box (STB), a remote controller, an IP data network, a streaming media server, and an electronic program list server. Operating IPTV services also requires digital program sources and supporting operating support systems. The user interacts with the set-top box through the remote control, and the set-top box accesses the electronic program list server through the IP data netwo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/16H04N7/173
Inventor 李益民刘生俊翁志强韩峰李庆亮
Owner HUAWEI TECH CO LTD
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