U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Device for the distribution of music information in digital form

Patent 5636276 Issued on June 3, 1997. Estimated Expiration Date: Icon_subject April 18, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Digital signal transmitting system
Patent #: 4710921
Issued on: 12/01/1987
Inventor: Ishidoh ,   et al.

Pay per view entertainment system
Patent #: 4789863
Issued on: 12/06/1988
Inventor: Bush

Enhanced scrambling method and system for TV signals
Patent #: 4790010
Issued on: 12/06/1988
Inventor: Sgrignoli

One-way address transmission system of PCM music
Patent #: 4991207
Issued on: 02/05/1991
Inventor: Shiraishi, et al.

Method and apparatus for protecting material on storage media and for transferring material on storage media to various recipients
Patent #: 5191611
Issued on: 03/02/1993
Inventor: Lang

Presentation player for an interactive digital communication system Patent #: 5208665
Issued on: 05/04/1993
Inventor: McCalley, et al.

Inventor

Application

No. 424004 filed on 04/18/1995

US Classes:

705/54, Adding plural layers of rights or limitations by other than the original producer381/77, ONE-WAY AUDIO SIGNAL PROGRAM DISTRIBUTION381/81, With switching705/52, Usage or charge determination705/56Specific computer ID (e.g., serial number, configuration, etc.)

Examiners

Primary: Gregory, Bernarr E.

Attorney, Agent or Firm

Foreign Patent References

  • 0416455 EP 09/13/1990
  • 9411858 WO 11/13/1992

International Classes

H04B 003/00
H04K 001/02

Foreign Application Priority Data

1994-04-18 DE

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.

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