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Patent Searching and Data


Title:
METHOD FOR STORING AND TRANSMITTING DATA GENERATED BY A SECURITY MODULE
Document Type and Number:
WIPO Patent Application WO2004071106
Kind Code:
A3
Abstract:
The invention aims at enabling recovery of data specific to a security module when the latter has been replaced by a new module in a user unit connected to a broadcasting network. This is achieved by a method for storing and transmitting data generated by a first security module connected to a user unit, said first security module comprising a unique identifier and data representing its operating mode, said first module being capable of being replaced by a second security module, said method comprising the following steps: determining specific data contained in the first security module for transmission; transferring said data into the user unit; storing said data in the user unit; replacing the first security module with the second security module; connecting the user unit on the transmission network; initializing a communication between the second module and a management center; introducing with the user unit, one data block into the blocks transmitted by the second module, said block including the identifier of the first module and data specific to said first module.

Inventors:
WIRZ CHRISTIAN (CH)
BRIQUE OLIVIER (CH)
CARREL XAVIER (CH)
DUVAL GREGORY (CH)
HAUERT PATRICK (CH)
Application Number:
IB2004000344W
Publication Date:
October 21, 2004
Filing Date:
February 05, 2004
Export Citation:
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Assignee:
NAGRAVISION SA
WIRZ, CHRISTIAN
BRIQUE, OLIVIER
CARREL, XAVIER
DUVAL, GREGORY
HAUERT, PATRICK
International Classes:
H04N7/173; C07C67/52; C07C67/54; C07C69/82; G02B26/10; G03B11/00; G03B17/02; G06F1/16; G06F11/10; G06F15/00; G06F21/24; G06K17/00; G06K19/00; G09C1/00; G09G3/02; G11B20/10; G11B20/14; G11B20/18; H03L7/091; H03M13/03; H03M13/13; H03M13/23; H03M13/29; H04B1/707; H04B7/005; H04B7/24; H04B7/26; H04B14/00; H04B17/00; H04H60/72; H04J13/00; H04J13/16; H04L9/00; H04L9/08; H04L9/10; H04L9/32; H04L12/24; H04L12/26; H04L12/28; H04L12/54; H04L25/03; H04L25/49; H04L25/497; H04L27/10; H04L27/156; H04L27/18; H04L29/06; H04L29/12; H04M1/247; H04M1/66; H04M3/22; H04N5/225; H04N5/44; H04N5/46; H04N5/64; H04N5/74; H04N5/76; H04N5/765; H04N5/907; H04N5/92; H04N7/01; H04N7/16; H04N7/26; H04N7/52; H04N9/31; H04N9/64; H04N9/79; H04N21/41; H04N21/414; H04W4/06; H04W4/12; H04W4/14; H04W8/02; H04W8/16; H04W8/20; H04W12/06; H04W12/10; H04W24/00; H04W40/22; H04W76/02; H04W80/06; H04W84/12; H04W88/02; G11B20/22; H04L1/00; H04N5/38; H04N5/66; H04N5/775; H04N5/85; H04N9/804; H04N17/00; H04W8/24; H04W8/26; H04W72/04; (IPC1-7): H04N7/16; H04N7/173
Foreign References:
EP0809402A11997-11-26
US4961109A1990-10-02
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