Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2006-06-27
2006-06-27
Trammell, James P. (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S051000, C705S052000, C705S059000, C705S064000, C713S182000, C380S200000, C380S201000, C380S202000, C380S203000, C726S026000, C726S027000, C726S028000, C726S029000, C726S030000, C726S032000, C726S033000
Reexamination Certificate
active
07069246
ABSTRACT:
A method authenticates 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. At least one predetermined error is introduced with the data resulting in mixed data. The mixed data is optionally stored on the media. The at least one predetermined error includes at least one authentication key or component thereof, for authenticating whether the media and/or data is authorized. The method includes the following sequential, non-sequential and/or sequence independent steps: reading the mixed data from the media, detecting the at least one predetermined error from the mixed data, and comparing the at least one predetermined error to the at least one authentication key or component thereof. The method also includes the steps of authenticating the media and/or the data in the mixed data responsive to the comparing, removing the at least one predetermined error from the mixed data resulting in substantially the data, and outputting the data as at least one of audio, video, audio data, video data and digital data substantially free of the at least one predetermined error.
REFERENCES:
patent: 5832084 (1998-11-01), Park
patent: 6167136 (2000-12-01), Chou
patent: 2004/0128514 (2004-07-01), Rhoads
patent: WO 98/08180 (1998-02-01), None
Brin et al., “Copy Detection Mechanisms for Digital Documents”, 1995, ACM, p. 398-409.
Starrett, “Hide and Seek announces non-intrusive CD copy protection”, Aug. 1997, Proquest, 2 pages.
Donner Irah H.
Recording Industry Association of America
Trammell James P.
Wilmer Cutler Pickering Hale and Dorr LLP
Worjloh Jalatee
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