Method of, and apparatus for, recording/reproducing data to/from recording medium having copyright management data recorded therein

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7231520
APP PUB NO 20020157012A1
SERIAL NO

10088336

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Abstract

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A method of recording data from a recorder to a recording medium, where it is judged whether a terminal unit having user identification information recorded in memory therein is connected to the recorder. When the terminal unit is found connected, an encryption key is exchanged between the recorder and terminal unit, user identification information read from the memory of the terminal unit is encrypted with the exchanged encryption key, sent from the terminal unit to the recorder, and the encrypted user identification information is recorded to the recording medium.

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Patent Owner(s)

Patent OwnerAddress
SONY CORPORATION7-35 KITASHINAGAWA 6-CHOME SHINAGAWA-KU TOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inokuchi, Tatsuya Kanagawa, JP 131 1584
Sako, Yoichiro Tokyo, JP 702 12171
Toriyama, Mitsuru Chiba, JP 20 298

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