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AssigneeRecording Industry Association of America
InventorDavid W. Stebbings
Estimating the term…
The present invention relates to a technique for authenticating data stored on media in order to prevent piracy. According to the present invention, a lookup table 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 is employed using conventional hardware and/or software in CD or DVD players. Each output value according to the present invention is a function of the physical characteristics of a disc that does not travel with the audio or video or graphics data. Authentication systems of the present invention optionally encompass singular, multiple or multi-level authentication systems, each of which successively must be deciphered before the audio/video is finally available.
A method for authenticating at least one of a media and data stored on said media, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, wherein said data stored on said media is modulated via at least one modified modulation rule to generate at least one authentication key or component thereof for authenticating at least one of said media and said data, said method comprising the steps of:
A data disc for authenticating at least one of said data disc and data stored on said media data disc, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said data disc, the data disc comprising at least one modified modulation rule comprising at least one authentication key or component thereof for authenticating at least one of said data disc and said data, wherein said at least one of said data disc and said data may be outputted in at least one of an analog and audio form substantially error free and free of said at least one modified modulation rule by at least one of an error removal process and said at least one authentication key or component thereof, thereby allowing a user to experience said data without experiencing said modulation rules removed therefrom via said error removal process.
In a method for authenticating at least one of a media and data stored on said media, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, wherein said data stored on said media is modulated via at least one modified modulation rule to generate at least one authentication key or component thereof for authenticating at least one of said media and said data, a data player comprising a data processor performing the steps of:
A data storing device for authenticating at least one of said data storing device and data to be stored on said data storing device, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said data storing device, the data storing device comprising at least one modified modulation rule to generate at least one authentication key or component thereof for authenticating at least one of said data storing device and said data, and wherein the modified modulation rule cannot be readily altered, obscured nor removed from said data without simultaneously degrading or impairing a quality of an audible component of said data, and wherein the data is transmitted substantially free of the modified modulation rule thereby preventing a destination processor from reading and subsequently authenticating said data.
A system for authenticating at least one of a media and data stored on said media, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, wherein said data stored on said media is modulated via at least one modified modulation rule to generate at least one authentication key or component thereof for authenticating at least one of said media and said data, wherein said at least one of said media and said data may be outputted in an analog and/or audio form substantially error free and free of said at least one modified modulation rule by at least one of an error removal process and said at least one authentication key or component thereof, said system including a data player containing a data processor comprising lookup table means for authenticating said at least one of said media and said data and for intentionally breaking standard modulation rules by which bit patterns are recorded as one or more symbol sequences on a data media, said lookup table means connected to a focus servo, tracking servo, laser, lens and mirror, together comprising a portion of a disc reader housed in a data player device.
A system for authenticating at least one of a media and data stored on said media, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, wherein said data stored on said media is modulated via at least one modified modulation rule to generate at least one authentication key or component thereof for authenticating at least one of said media and said data, wherein said at least one of said media and said data may be outputted in an analog and/or audio form substantially error free and free of said at least one modified modulation rule by at least one of an error removal process and said at least one authentication key or component thereof,
A system for authenticating at least one of a media and data stored on said media, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, wherein said data stored on said media is modulated via at least one modified modulation rule to generate at least one authentication key or component thereof for authenticating at least one of said media and said data, said system comprising:
Dependencies are inferred from the claim text.