Management of data in a receiver/decoder

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer

Reexamination Certificate

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Details

C713S152000, C713S152000, C709S215000, C709S226000, C709S217000, C725S093000

Reexamination Certificate

active

06857077

ABSTRACT:
In order to restrict data access in a receiver/decoder, a plurality of sets of access rights are assigned to the data, each set of access rights being assigned to at least one party. The data, the sets of access rights and an identifier for each party are stored in a memory of the receiver/decoder. The identifier of a party requesting access to the data is compared with the or each identifier stored in the memory, and the party provided with the set of access rights assigned thereto in the memory of the receiver/decoder.

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Helen Custer, Inside Windows NT, Microsoft Press, A Divsion of Microsoft Corporation, 1993.

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