发明授权
- 专利标题: Method of managing the display of event specifications with conditional access
- 专利标题(中): 使用条件访问管理事件规范显示的方法
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申请号: US10537306申请日: 2003-12-01
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公开(公告)号: US07831046B2公开(公告)日: 2010-11-09
- 发明人: Olivier Brique , Christophe Gogniat
- 申请人: Olivier Brique , Christophe Gogniat
- 申请人地址: CH Cheseaux-sur-Lausanne
- 专利权人: Nagravision S.A.
- 当前专利权人: Nagravision S.A.
- 当前专利权人地址: CH Cheseaux-sur-Lausanne
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 优先权: CH2044/02 20021203
- 国际申请: PCT/IB03/05654 WO 20031201
- 国际公布: WO2004/052005 WO 20040617
- 主分类号: H04N7/167
- IPC分类号: H04N7/167 ; G06F11/30 ; G06F12/14
摘要:
The object of the invention is a method of managing the display of event specifications with conditional access, particularly to display an electronic program guide for Pay-TV.This aim is reached by a method including the following steps: sending data forming an electronic program guide (EPG) to a decoder (STB), this electronic guide serving to display the events which will be broadcasted, these data including, for each event, at least one identifier, textual data and a condition block comprising the conditions required for the access to this event, sending at least one authorization message (EMM) to a security module (SC) associated with the decoder, this message defining access rights to an event; sending the condition block (PECM) to said security module (SC), processing, in the security module, the access condition contained in said condition block (PECM), and return by the security module of a message indicating, according to the access condition for each event and to the access rights contained in the security module, if the right exists or not for each event in the security module. This method allows the management of requests in structured language and makes it possible to manage complex access conditions.