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    • 1. 发明申请
    • SYSTEMS AND METHODS FOR PREVENTING CAMCORDER PIRACY OF MOTION PICTURE IMAGES
    • 用于防止运动图像图像的摄像机的系统和方法
    • WO0074366A2
    • 2000-12-07
    • PCT/US0014777
    • 2000-05-26
    • DIGITAL ELECTRONIC CINEMA INCMEAD DONALD C
    • MEAD DONALD C
    • H04N5/913H04N
    • H04N5/913H04N2005/91385H04N2005/91392
    • Novel systems and methods for preventing piracy of motion picture images by recording the images as they are displayed on a movie screen, using a camcorder as a recording device. Two alternative anti-piracy systems and methods are described. The first method is to vary the frame rate of the displayed motion picture images in a random fashion, thus preventing the camcorder from synchronizing its internal frame rate with that of the displayed motion picture image. The second method is to transmit pulsed energy with frequencies in the frequencies of visible light, such as red light in a manner with sufficient transmitted power or frequency to degrade the quality of the recorded image by the recording device. The result is significantly degraded quality of the recorded ima ges. The two embodiments can be used alone or in combination.
    • 通过使用摄像机作为记录装置,在电影屏幕上显示图像时记录图像来防止电影图像盗版的新型系统和方法。 描述了两种可选的反盗版系统和方法。 第一种方法是以随机方式改变所显示的动态图像图像的帧速率,从而防止摄像机将其内部帧速率与所显示的动态图像图像的速率同步。 第二种方法是以具有足够的发射功率或频率的方式以可见光的频率(例如红光)发射具有频率的脉冲能量,以降低由记录装置记录的图像的质量。 结果是显着降低了记录的成像质量。 两个实施方案可以单独使用或组合使用。
    • 5. 发明专利
    • System and method for digital electronic cinema delivery
    • AU4688199A
    • 2000-01-05
    • AU4688199
    • 1999-06-15
    • DIGITAL ELECTRONIC CINEMA INC
    • RABOWSKY IRVING
    • H04N7/173
    • A novel system and method for secure electronic delivery of motion pictures in digital format to many end users simultaneously. In particular, the system comprises a headend system and a theater system. The headend system comprises a baseband processing system which receives analog cinema film as input, a storage system which receives digitized cinema files from the baseband processing system, a radio frequency transmission system which communicates cinema and data files to and from various users as a radio frequency bit stream, and a management system which controls transmission and storage of cinema and data files. The theater system comprises transmission line interfaces at theaters designated to receive cinema and data files from the headend system, receiver-decoders which receive the radio frequency bit stream and produce decoded cinema and data files at baseband, storage playback systems which stores cinema and data files until needed, secure projector systems which playback cinema files, an automation/scheduling system which directs playback of cinema files in the secure projector systems as authorized by the management system, and a reverse channel which provides data back to the headend system from the theaters. A preferred version of the present invention further comprises a creator/editor's system which allows authorized viewing and editing of cinema files by creators and editors. The creator/editor's system provides capability for editing and baseband processing of cinema files at remote locations, and transmits edited cinema files back to the headend system.