Recording and reproducing system for protecting copyrighted data

Details Recording and reproducing system for protecting copyrighted data Recording and reproducing system for protecting copyrighted data

1995-12-21

1999-07-13

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Recording-or erasing-prevention

360 69, 386 94, G11B 1904

Patent

active

059234865

ABSTRACT:
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.

REFERENCES:
patent: 4879704 (1989-11-01), Takagi et al.
patent: 5231546 (1993-07-01), Shimada
patent: 5579120 (1996-11-01), Oguro
Abstract for Japanese Patent No. 63-239,653, Oct. 5, 1988.

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