Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2003-12-01
2010-11-09
Chen, Shin-Hon (Department: 2431)
Cryptography
Video cryptography
Video electric signal modification
C380S231000, C713S193000
Reexamination Certificate
active
07831046
ABSTRACT:
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), andreturn 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.
REFERENCES:
patent: 5223924 (1993-06-01), Strubbe
patent: 5630119 (1997-05-01), Aristidis et al.
patent: 6694482 (2004-02-01), Arellano et al.
patent: 7185355 (2007-02-01), Ellis et al.
patent: 2001/0020297 (2001-09-01), Inoue
patent: 2002/0059180 (2002-05-01), Aoki et al.
patent: 2002/0066098 (2002-05-01), Hamakawa
patent: 2002/0087971 (2002-07-01), Cochran et al.
patent: 2002/0114465 (2002-08-01), Shen-Orr et al.
patent: 2002/0184652 (2002-12-01), Cezeaux
patent: 2003/0063117 (2003-04-01), Chang et al.
patent: 2003/0088872 (2003-05-01), Maissel et al.
patent: 2003/0106057 (2003-06-01), Perdon
patent: 2003/0196113 (2003-10-01), Brown et al.
patent: 2003/0200313 (2003-10-01), Peterka et al.
patent: 2 349 290 (2000-10-01), None
patent: WO 97 42762 (1997-11-01), None
patent: WO 02 15578 (2002-02-01), None
International Search Report and International Preliminary Examination Report.
Brique Olivier
Gogniat Christophe
Chen Shin-Hon
Harness & Dickey & Pierce P.L.C.
Nagravision S.A.
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