CONDITIONAL ACCESS AND SECURITY FOR VIDEO ON-DEMAND SYSTEMS - Patent 1247399

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EP 1 247 399 A1

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(43)	Date of publication:
	09.10.2002 Bulletin 2002/41

(21)	Application number: 01904852.9

(22)	Date of filing: 12.01.2001

(51)	International Patent Classification (IPC)⁷: H04N 7/167

(86)	International application number:
	PCT/US0101/173

(87)	International publication number:
	WO 0105/2543 (19.07.2001 Gazette 2001/29)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

14.01.2000 US 483066

(71)	Applicant: Diva Systems Corporation
	Redwood City, CA 94063 (US)

(72)	Inventor:
	BERTRAM, Michael, C. San Jose, CA 95134 (US)

(74)	Representative: Pratt, Richard Wilson
	D. Young & Co,21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)

(54)	CONDITIONAL ACCESS AND SECURITY FOR VIDEO ON-DEMAND SYSTEMS