发明名称 |
COPY-PROTECTING APPLICATIONS IN A DIGITAL BROADCASTING SYSTEM |
摘要 |
<p>A digital broadcasting system, such as DVB-MHP, transmits applications (320) 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.</p> |
申请公布号 |
WO2005013126(A1) |
申请公布日期 |
2005.02.10 |
申请号 |
WO2004IB02572 |
申请日期 |
2004.07.28 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;FOSTER, JONATHAN, G.;BENJES, IMMO |
发明人 |
FOSTER, JONATHAN, G.;BENJES, IMMO |
分类号 |
G06F9/445;G06F21/00;H04N5/00;H04N7/167;(IPC1-7):G06F9/445 |
主分类号 |
G06F9/445 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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