System and methods for permitting open access to data objects and for securing data within the data objects

  • US 8,798,268 B2
  • Filed: 03/11/2013
  • Issued: 08/05/2014
  • Est. Priority Date: 12/07/1999
  • Status: Expired due to Term
First Claim
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1. A method for using a device to render content to provide at least one of an audible and visual signal for perception by a person, comprising:

  • receiving in said device a signal stream comprising content in which the content in said signal stream is scrambled;

    receiving in said device a first key;

    applying, in said device a key based descrambling algorithm which takes as inputs at least one key and a signal stream and produces as output a descrambling algorithm output signal, to said first key and said signal stream, to produce a signal stream descrambling algorithm output signal; and

    generating, in said device, at least one of an audible and a visual signal, based upon said signal stream descrambling algorithm output signal.

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