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Protection for high-def signals, VTrack, and Running Marks


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"LOS ANGELES — Two companies are introducing technology to thwart people who make illegal copies of video-on-demand and cable television pay-per-view content."


"Both systems, one from Philips Electronics and another from Cinea Inc., a unit of Dolby Laboratories Inc., insert an invisible digital watermark into the content before it is viewed."


"Both Philips and Cinea have also worked with studios to protect copies of films that are sent to voters for the annual Academy Awards."


"The watermarks were key to the 2004 arrest of an Illinois man who copied 134 screeners including The Last Samurai and Something's Gotta Give.”




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