Recording medium for protecting copyrighted data

Details Recording medium for protecting copyrighted data Recording medium for protecting copyrighted data

G - Physics

11

B

G11B 20/10 (2006.01) G11B 19/00 (2006.01) G11B 21/10 (2006.01) H04N 5/76 (2006.01)

Patent

CA 2426322

Copying, dubbing or reproducing copyrighted digital data can be inhibited or restricted to properly protect a copyright. AV data recorded on a pre-recorded tape is output from a reproducing unit of a first digital VCR with protective information indicating whether the copy of the AV data is inhibited or not. The protective information is input with the A/V data to a second digital VCR. Copy permission information of a blank tape loaded in the second digital VCR is discriminated and the second digital VCR records the AV data supplied from the first digital VCR based on the protective information and the copy permission information.

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