Unlock instant, AI-driven research and patent intelligence for your innovation.

Media gateway/terminal implementation method supporting DRM (Digital Rights Management) and equipment thereof

A digital rights management and media gateway technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of unable to realize digital rights management of shared media content, unable to realize media content sharing, etc.

Active Publication Date: 2017-06-13
ACADEMY OF BROADCASTING SCI STATE ADMINISTATION OF PRESS PUBLICATION RADIO FILM & TELEVISION +1
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the other hand, with the rapid development and popularization of home networks, the demand for sharing and managing digital copyrights of media content in home networks continues to increase, especially for scrambled digital TV. The existing technical solutions are usually LAN Multiple terminals in the home network need to have their own independent descrambling capabilities, that is, to purchase multiple set-top boxes and smart cards to descramble the scrambled digital TV programs. It is impossible to share media content between different terminals in the home network, let alone Realize digital rights management of shared media content in local area network

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Media gateway/terminal implementation method supporting DRM (Digital Rights Management) and equipment thereof
  • Media gateway/terminal implementation method supporting DRM (Digital Rights Management) and equipment thereof
  • Media gateway/terminal implementation method supporting DRM (Digital Rights Management) and equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0094] According to the first embodiment of the present invention, such as figure 2 , 3 As shown, the implementation method of the media gateway supporting digital TV digital rights management (DRM) according to this embodiment is implemented in a smart TV 2000 as a media gateway. In one embodiment, the smart TV 2000 can be a set-top box or an integrated set-top box . The media gateway 2000 includes a trusted execution environment (TEE) 2600, and the trusted execution environment (TEE) 2600 includes hardware resources, an interactive interface and a secure operating system isolated from the intelligent operating system. The methods include:

[0095] S1: Obtain all channel program lists and send them to terminal 3000;

[0096] S2: Receive the channel program identifier indicating the user's channel change instruction or program play instruction sent from the terminal 3000, and obtain the corresponding program data stream; the channel program identifier includes the channel'...

no. 2 example

[0113] The first embodiment of the present invention has been described above with reference to the accompanying drawings, and the second embodiment according to the present invention will be described below, where the parts not described are the same as those of the first embodiment, so they will not be repeated here. According to this embodiment, a media gateway device 2000 supporting digital TV rights management (DRM) is provided, see image 3 left part. The device 3000 includes: a trusted execution environment (TEE) 2600 and a trusted application 2700 set therein, a digital TV gateway service module 2100, a media processing module 2300, a digital TV module 2200, a conditional access (DCAS) module 2400 and a DRM Management service module 2500 . The Trusted Execution Environment (TEE) includes hardware resources, interactive interfaces and a secure operating system isolated from the operating system of the media gateway. in:

[0114] The digital TV module 2200 is used to ...

no. 3 example

[0133] According to the third embodiment of the present invention, such as image 3 , 4 As shown, the terminal implementation method of the media gateway supporting digital TV digital rights management (DRM) according to this embodiment is implemented in a smart TV 3000 as a terminal. In one embodiment, the smart TV 3000 can be a set-top box or an integrated set-top box . The terminal 3000 includes a trusted execution environment (TEE) 3600 and a trusted application 3700 set therein, and the trusted execution environment (TEE) 3600 includes hardware resources isolated from the operating system of the media gateway, an interactive interface and Secure operating system. The method comprises the steps of:

[0134] S1: request the program list of all channels from the media gateway 2000;

[0135] S2: In response to the user's channel change instruction or program play instruction, send the switched channel program ID to the media gateway. The channel program ID includes the ch...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a media gateway implementation method supporting DRM (Digital Rights Management). A media gateway comprises a TEE (Trusted Execution Environment) and a trusted application arranged therein. The media gateway implementation method comprises the steps of: receiving a channel program identifier sent from a terminal, and acquiring corresponding program data code stream; acquiring program parameters, wherein the program parameters comprise videoPid, audioPid, casId, ecmPid and emmPid of a channel program; parsing the ecmPid and emmPid by utilizing a parsing mechanism matched with the casId so as to obtain encrypted level keys EK1 and EK2 and an encrypted control word ECW; carrying out descrambling on the scrambled program data code stream by utilizing the EK1, the EK2, the ECW and the videoPid and the audioPid of the channel program; generating a content key CEK by the trusted application in the TEE, encrypting descrambled program data by utilizing the CEK, and sending the program data to the terminal; and acquiring a public key used for encrypting the CEK from the terminal, encrypting the CEP by the trusted application in the TEE through utilizing the public key so as to obtain the encrypted content key ECEK, and sending the encrypted content key ECEK to the terminal.

Description

technical field [0001] The present invention relates to the technical field of digital rights management. Specifically, the present invention relates to a method for realizing a media gateway supporting digital rights management, a method for realizing a terminal of the media gateway and equipment thereof. Background technique [0002] With the development of media convergence, especially the promulgation of the H265 / HEVC (High Efficiency Video Coding) video coding standard, mainstream mobile phones / PADs and set-top box chips have begun to support the operation of H265 / HEVC, UHD (Ultra High Definition) / 4K content As it becomes possible, more and more operators regard UHD / 4K business as the next growth point of business. Moreover, content providers, especially large film companies, have put forward stricter copyright protection requirements for high-quality content such as high-definition and UHD (Ultra High Definition) / 4K. At the same time, in response to the content protec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/266H04N21/434H04N21/435H04N21/438H04N21/4385H04N21/4623H04N21/4627
CPCH04N21/26609H04N21/4341H04N21/4353H04N21/4382H04N21/4383H04N21/4385H04N21/4623H04N21/4627H04N21/4408H04N21/2541H04N21/26606H04N21/26613
Inventor 盛志凡王兴军王磊梁志坚郭沛宇郭晓霞
Owner ACADEMY OF BROADCASTING SCI STATE ADMINISTATION OF PRESS PUBLICATION RADIO FILM & TELEVISION