Digital content control including digital rights management (DRM) through dynamic instrumentation
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United States of America Patent
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Issued Date -
Nov 18, 2004
app pub date -
May 14, 2003
filing date -
May 14, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention, according to a preferred embodiment, provides an efficient and easy-to-implement method to use existing DRM (Digital Rights Management) systems with existing media players. The present invention separates the enforcement of digital rights independent of the content-rendering software. Unlike many of the prior art systems, the present invention works with any non-DRM player. In one embodiment, the present invention enforces behavior restrictions on an application on an information processing system, which includes loading a dynamic instrumentation (DI) codemonitor. An entry point for an application is retrieved by inserting an instrumentation point thereinto. The instrumentation point is inserted in accordance with the entry point, wherein the instrumentation point causes a branch into the DI code monitor when executed. Depending on the application with the instrumentation point therein, the DI code monitor blocks a request made by the application code. In one embodiment the blocking of a request is made in accordance with a DRM system running.
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