Conditional access and content security method

Details Conditional access and content security method Conditional access and content security method

1998-01-29

2000-05-30

Grant, Chris

Television

Special applications

Manufacturing

380 4, H04N 7167

Patent

active

060696478

ABSTRACT:
A system featuring an interface unit connected to a programmable unit is described. The interface unit is capable of containing a time-sensitive key. The programmable unit is allowed to receive digital content from the interface unit upon establishing that the time-sensitive key is also contained therein.

REFERENCES:
patent: 4800590 (1989-01-01), Vaughan
patent: 5367572 (1994-11-01), Weiss
patent: 5592553 (1997-01-01), Guskie et al.
patent: 5802176 (1998-09-01), Audebert
patent: 5892899 (1999-04-01), Aucsmith et al.

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