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System and method for providing searchable data transport stream encryption

  • US 8,504,825 B2
  • Filed: 06/27/2011
  • Issued: 08/06/2013
  • Est. Priority Date: 06/23/2005
  • Status: Active Grant
First Claim
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1. A non-transitory data transport stream suitable for transmitting preselected viewing content, comprising:

  • an encrypted transport payload including the preselected viewing content; and

    an unencrypted transport header for enabling a selected content to be extracted without decrypting said transport payload of the selected content and none of the preselected viewing content being included in said unencrypted transport header,wherein all of the preselected viewing content in the transport stream remains encrypted during transmission such that the preselected viewing content is protected against unauthorized access without impairing presentation of the preselected viewing content.

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