Patent ID: 6594361
Filing Date: 2003-07-15
Classification: G06Q,G07F,H04N

Abstract:
Apparatus for processing a signal comprising:(a) a card body; (b) means for receiving a digital input stream from a location external to said card body, said input stream having a control component and a scrambled data component identified by respective header portions, said scrambled data component comprising at least one of audio and video data; (c) means for generating, within said card body, a key code in response to said control component; (d) means for descrambling, within said card body, said data component in response to said key code to produce an output stream having a descrambled data component; (e) transport means, within said card body, for detecting said header portions of said components, separating said input stream into said components and routing, within said card body, said control component to said generating means and said scrambled data component to said descrambling means in accordance with said header portions; (f) means, within said card body, for coupling said key code between said generating means and said descrambling means; and (g) means for providing said output stream to a location external to said card body.