Selectively de-scrambling media signals

Details Selectively de-scrambling media signals Selectively de-scrambling media signals

2003-04-21

2009-02-10

Srivastava, Vivek (Department: 2623)

Interactive video distribution systems

Access control or blocking

C348S156000, C348S211400, C348S474000, C455S026100

Reexamination Certificate

active

07490340

ABSTRACT:
A user enters control settings into a content receiver whereby the control settings correspond to a particular viewer or a particular time-of-day. The content receiver receives a media signal and metadata that includes censorship level information. The content receiver uses the control settings to identify an applicable censorship level and uses the metadata to de-scramble the media signal to a censorship level corresponding to the identified applicable censorship level. The content receiver provides the de-scrambled media signal to a viewer's display.

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patent: 5382983 (1995-01-01), Kwoh et al.
patent: 5606612 (1997-02-01), Griffin et al.
patent: 6944876 (2005-09-01), Whitelaw
patent: 2002/0013941 (2002-01-01), Ward et al.
patent: 2002/0095673 (2002-07-01), Leung et al.

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