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COPY PROTECTION METHOD USING BROKEN MODULATION RULES

阅读:192发布:2020-11-09

专利汇可以提供COPY PROTECTION METHOD USING BROKEN MODULATION RULES专利检索,专利查询,专利分析的服务。并且The present invention relates to a method/system for authenticating a media (14) and/or data stored on the media (14) in order to prevent piracy and/or unauthorized access and/or unauthorized copying of the data stored on the media (14), including CDs and DVDs. A lookup table (10) contains broken or modified modulation rules comprising one or more authentication keys or components thereof, that are derived by the table's intentional breaking of standard 8-14 and 8-16 modulation rules. The authentication keys are formed and remain hidden without being transferred in the audio/video. Additionally, the lookup table (10) is employed using conventional hardware and/or software in CD or DVD players, which may optionally be modified. Each output value is a function of the physical characteristics of a disc that do not travel with the audio or video or graphics data. Authentication systems optionally encompass singular, multiple or multi-level authentication systems, each of which successively must be deciphered before the audio/video is finally available.,下面是COPY PROTECTION METHOD USING BROKEN MODULATION RULES专利的具体信息内容。

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