Device for the distribution of music information in digital form

Details Device for the distribution of music information in digital form Device for the distribution of music information in digital form

1995-04-18

1997-06-03

Gregory, Bernarr E.

Cryptography

Cryptanalysis

380 9, 380 49, 380 50, 380 23, 380 25, 381 77, 381 81, H04B 300, H04K 102

Patent

active

056362765

ABSTRACT:
In order to distribute music information from a central memory device (2) via a communications network (4) to a terminal (6), this information is organized in a digital music information object. The latter comprises a core having basic information relating to the music information object, as well as a number of additional layers having the actual music information. The core includes an encryption table, on the basis of which an encryption module (30) of the central memory device (2) and a decryption module (32) of the terminal (6) respectively encrypt and decrypt the music information object. Furthermore, an interpretation module (34) is provided in the terminal (6) for reproduction conditioning of the music information object, which interpretation module (34) accesses information for checking the authorized use of the music information object, which information is stored in an authorization device (36) and identifies the terminal or the consumer. The invention thus creates a technique for distribution of digital music information which on the one hand provides effective mechanisms for the protection of copyrights and on the other hand makes possible increased services for the consumer.

REFERENCES:
patent: 4710921 (1987-12-01), Ishidoh et al.
patent: 4789863 (1988-12-01), Bush
patent: 4790010 (1988-12-01), Sgrignoli
patent: 4991207 (1991-02-01), Shiraishi et al.
patent: 5191611 (1993-03-01), Lang
patent: 5208665 (1993-05-01), McCalley et al.

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