发明名称 Cinema anti-piracy measures
摘要 An anti-piracy system introduces distortion into a recorded image, while maintaining a high quality projected image. The video source material includes modulated entities for providing artifacts incompatible with the content of the video source material and selectively deliverable information that the projection system uses to demodulate the entities. A projector receives the information about the modulated entity and corrects, or demodulates, the entity. The projection system also imposes a recording device dependent interference on the projected images.
申请公布号 US7634089(B1) 申请公布日期 2009.12.15
申请号 US20000679320 申请日期 2000.10.04
申请人 SARNOFF CORPORATION 发明人 BURSTYN HERSCHEL CLEMENT
分类号 H04N7/167 主分类号 H04N7/167
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