Controlled-access broadcast signal receiving system

Details Controlled-access broadcast signal receiving system Controlled-access broadcast signal receiving system

1995-07-07

1998-08-18

Gregory, Bernarr E.

Cryptography

Key management

Having particular key generator

380 4, 380 5, 380 9, 380 23, 380 49, 380 50, H04N 7167, H04L 900, H04L 932

Patent

active

057968284

ABSTRACT:
An apparatus and method for transferring from a broadcaster to a receiver a limited reproduction right in data. A signal indicating the limited reproduction right is transmitted by the broadcaster and stored by the receiver with the data. The receiver reproduces and processes the data as a function of this signal.

REFERENCES:
patent: 4030128 (1977-06-01), Perret
patent: 4930158 (1990-05-01), Vogel
patent: 5054064 (1991-10-01), Walker et al.
patent: 5400402 (1995-03-01), Garfinkle

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