| Original document(23 pages) 中文版 |
A digital broadcasting system, such as DVB-MHP, transmits applications in encrypted form to terminals (60). Details about the application, such as encryption method, cost and payment details are transmitted to terminals. Terminals use an interaction channel (85) to obtain authorization to access the application (320) from an authorizing entity (55). Authorized terminals receive a key (215) which can be used to decrypt the encrypted application (320). The functionality to authorize the terminal can reside on the terminal (60) or it can form part of a launcher application (310, Fig. 5) which is received by the terminal. |
Application Number
申请号 |
200480022431 |
Application Date
申请日 |
2004.07.28 |
| Title 名称 |
Copy-protecting applications in a digital broadcasting system
|
Publication Number
公开号 |
1833224 |
Publication Date
公开日 |
2006.09.13 |
| Approval Pub. Date |
|
Granted Pub. Date |
|
| International Classification 分类号 |
G06F9/445,G06F21/00 |
Applicant(s) Name
申请人 |
Koninkl Philips Electronics NV |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Foster Jonathan G. |
| Attorney & Agent 代理人 |
li yafei liu jie |
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