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Method and system of preventing unauthorized rerecording of multimedia content

  • US 7,346,580 B2
  • Filed: 08/23/2001
  • Issued: 03/18/2008
  • Est. Priority Date: 08/13/1998
  • Status: Expired due to Term
First Claim
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1. A method on an end-user device to prevent an unauthorized recording of multimedia content as a result of rendering at least part of the multimedia content, the method comprising:

  • accessing encrypted multimedia content intended for playing on the end-user device using multimedia output devices and/or pods of the end-user device after decryption of the multimedia content;

    prior to decryption of the encrypted multimedia content, blocking access to multimedia content input devices and/or ports of the end-user device, the blocking being accomplished by opening all multimedia content input devices and/or ports of the end-user device that can receive any part of a multimedia content, to prevent use of such multimedia content input devices and/or ports, thereby preventing re-recording of decrypted multimedia content by the end-user device;

    decrypting at least part of the encrypted multimedia content; and

    subsequent to decryption, and while access to all such multimedia content input devices and/or ports is blocked, rendering the at least part of the multimedia content.

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