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Universal multimedia optic disc player and its application for revocable copy protection

  • US 8,265,456 B2
  • Filed: 11/03/2008
  • Issued: 09/11/2012
  • Est. Priority Date: 03/29/2001
  • Status: Expired due to Term
First Claim
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1. A content player comprising:

  • a processor having an interface through which an auto-run playback program and content are delivered to the processor from a non-transitory machine-readable medium;

    signal processing circuitry coupled to said processor and having an output port for coupling to a media presentation device;

    a memory coupled to said processor and having a data structure defined therein;

    said data structure implemented by said processor and comprising a virtual machine for hosting said auto-run playback program obtained from the non-transitory machine-readable medium;

    the auto-run playback program being operable to provide control instructions to said processor to cause said processor to access content from the non-transitory machine-readable medium and supply the content to said signal processing circuitry for output to the media presentation device; and

    the content including copy protection data and the auto-run playback program being operable to read the copy protection data to effect copy protection of the content.

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