CONTENT PROTECTION USING BLOCK REORDERING
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United States of America Patent
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app pub date -
Dec 12, 2011
filing date -
Nov 2, 2000
priority date (Note) -
Abandoned
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Abstract
An apparatus and method for protecting a content item such as a digitally encoded movie, an electronic programming guide, or the like, by reordering blocks of the content item prior to transmitting it to a receiving device. The receiving device constructs a block reordering structure which is used to access the reordered content item, to facilitate retrieval of a desired block from the original content item. The reordering may be done responsive to an identifier value of the receiving device, such as a serial number.
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