System and method for controlling and enforcing access rights to encrypted media | Patent Publication Number 20010029581

US 20010029581 A1
Patent NumberUS 07200230 B2
Application Number9760956
Filled DateJan 15, 2001
Priority DateApr 6, 2000
Publication DateOct 11, 2001
Original AssigneeMacrovision
Current AssigneeVeveo Inc.
Rovi Technologies
Gemstar Development Corporation
Starsight Telecast Inc.
Rovi Solutions Corporation
Aptiv Digital Inc.
United Video Properties
Rovi Guides Inc.
Sonic Solutions
Index Systems Inc.
Inventor/ApplicantsChristopher L. Knauft
Christopher L. Knauft
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