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High-capacity SIM storage control

  • US 9,198,025 B2
  • Filed: 01/29/2007
  • Issued: 11/24/2015
  • Est. Priority Date: 05/04/2006
  • Status: Active Grant
First Claim
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1. A subscriber identity module (SIM) card comprising:

  • a memory having a plurality of partitions; and

    a memory controller configured to;

    receive access-control data from a remote source via a host device, wherein the remote source is distinct from the host device;

    set, based on the access-control data, an active access mode associated with a first partition of the plurality of partitions;

    receive a request to access the first partition from an application of the host device;

    determine, independent of the application that sent the request, whether to permitor prevent the access based on the active access mode; and

    prevent the host device from storing particular data in the memory upon detecting that the particular data includes a particular data sequence that matches a data sequence that includes one or more tags of digital rights management (DRM) information.

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