Patent ReferencesDigital signal transmitting system Pay per view entertainment system Enhanced scrambling method and system for TV signals One-way address transmission system of PCM music Method and apparatus for protecting material on storage media and for transferring material on storage media to various recipients Presentation player for an interactive digital communication system Patent #: 5208665 InventorApplicationNo. 424004 filed on 04/18/1995US 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.)ExaminersPrimary: Gregory, Bernarr E.Attorney, Agent or FirmForeign Patent References
International ClassesH04B 003/00H04K 001/02 Foreign Application Priority Data1994-04-18 DEAbstractIn 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. | |