COPY PROTECTION SYSTEM FOR DIGITAL DATA Russian patent published in 2005 - IPC

Abstract RU 2251146 C2

FIELD: copy protection.

SUBSTANCE: system has content distribution block, multiple recording and playback devices for digital data, calculations processing block, meant to perform communications with recording and playback devices and performing calculations processing for transferring license payments.

EFFECT: higher reliability of copy protection.

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RU 2 251 146 C2

Authors

Tagava Kendzi

Kozuka Masajjuki

Okamoto Rijuiti

Nonomura Tomojjuki

Matsusima Khideki

Tokuda Katsumi

Otani Jjukako

Jamamoto Masajja

Inoue Mitsukhiro

Dates

2005-04-27Published

2000-08-30Filed