Data management method and system thereof

Details Data management method and system thereof Data management method and system thereof

1994-08-04

1996-10-22

Cain, David C.

Cryptography

Cryptanalysis

380 49, 380 23, H04L 900

Patent

active

055685510

ABSTRACT:
To enable management by a center of data transferred to a user terminal from the center, an ISDN, which has a call connecting means which forms a signal channel before forming a data channel between a user terminal and center and enable user to user transfer of data on that signal channel. In the control routine, control data regarding data management which prohibits or releases copying or reediting between a center and user is transferred between the center and user terminal. The data after transfer to the user terminal can also be managed from the center.

REFERENCES:
patent: 5347578 (1994-09-01), Duxbury
patent: 5400403 (1995-03-01), Fahn et al.

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