A secure tracking system for video program content places a special code (watermark) within the broadcast program, preferably via the user bits of the SMPTE time code already used on virtually all film and video production systems. A registering authority provides proof of a program broadcast by detecting...http://www.google.fr/patents/US20040009763?utm_source=gb-gplus-shareBrevet US20040009763 - Secure tracking system and method for video program content
Secure tracking system and method for video program content
