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    SECURE ELECTRONIC CONTENT MANAGEMENT SYSTEM
    11.
    发明专利
    SECURE ELECTRONIC CONTENT MANAGEMENT SYSTEM 未知

    公开(公告)号：CA2338414C

    公开(公告)日：2006-05-09

    申请号：CA2338414

    申请日：1999-08-12

    Applicant: IBM

    Inventor： DOWNS EDGAR ,  GRUSE GEORGE GREGORY ,  DORAK JOHN JR ,  MEDINA CESAR ,  LOTSPIECH JEFFREY ,  HURTADO MARCO ,  LEHMAN CHRISTOPHER ,  MILSTED KENNETH

    IPC: G06F21/00 ,  G06F12/14 ,  G06F21/10 ,  G06Q30/00 ,  H04L9/14 ,  H04L9/28 ,  H04L9/30 ,  H04L12/16

    Abstract: A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. Content players, which receive from the network the licensed content data, are used to play the licensed content data. Additionally, a logging site that is coupled to the network tracks the playi ng of the content data. In particular, the logging site receives play information from the network, and the play information includes the number of times that the content data has been played by the associated content player. Also provided is a method for tracking usage of digital content on user devices. According to the method, a license to play digital content data is sold to a user, and the licensed content data is transmitted to a content player for the user. Further, information is transmitted to a logging site whenever the content data is played by the content player or copied from the content player to an external medium so that usage of the licensed content data can be tracked .

    SYSTEM FOR TRACKING END-USER ELECTRONIC CONTENT USAGE
    12.
    发明专利
    SYSTEM FOR TRACKING END-USER ELECTRONIC CONTENT USAGE 未知

    公开(公告)号：CA2467998C

    公开(公告)日：2006-04-25

    申请号：CA2467998

    申请日：1999-08-12

    Applicant: IBM

    Inventor： GRUSE GEORGE GREGORY ,  HURTADO MARCO ,  DORAK JOHN ,  DOWNS EDGAR ,  LEHMAN CHRISTOPHER ,  LOTSPIECH JEFFREY ,  MEDINA CESAR ,  MILSTED KENNETH

    IPC: G06F21/00 ,  H04L9/28 ,  G06F12/14 ,  G06F21/10 ,  G06Q30/00 ,  H04L9/14 ,  H04L9/30 ,  H04L12/16

    Abstract: A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. Content players , which receive from the network the licensed content data, are used to play the licensed content dat a. Additionally, a logging site that is coupled to the network tracks the playing of the content data. In particular, the logging site receives play information from the network, and the play information includes the number of times that the content data has been played by the associated content player . Also provided is a method for tracking usage of digital content on user devices. According to t he method, a license to play digital content data is sold to a user, and the licensed content data i s transmitted to a content player for the user. Further, information is transmitted to a logging site whenever the content data is played by the content player or copied from the content player to an external medium so that usage of the licensed content data can be tracked.

    SYSTEM FOR TRACKING END-USER ELECTRONIC CONTENT USAGE
    13.
    发明专利
    SYSTEM FOR TRACKING END-USER ELECTRONIC CONTENT USAGE 未知

    公开(公告)号：CA2467998A1

    公开(公告)日：2000-02-24

    申请号：CA2467998

    申请日：1999-08-12

    Applicant: IBM

    Inventor： LOTSPIECH JEFFREY ,  HURTADO MARCO ,  LEHMAN CHRISTOPHER ,  GRUSE GEORGE GREGORY ,  DOWNS EDGAR ,  DORAK JOHN ,  MILSTED KENNETH ,  MEDINA CESAR

    IPC: G06F21/00 ,  G06F12/14 ,  G06F21/10 ,  G06Q30/00 ,  H04L9/14 ,  H04L9/28 ,  H04L9/30 ,  H04L12/16 ,  G06F17/60

    Abstract: A system for tracking usage of digital content on user devices. Electronic stores coupled to a network sell licenses to play digital content data to users. Content players , which receive from the network the licensed content data, are used to play the licensed content dat a. Additionally, a logging site that is coupled to the network tracks the playing of the content data. In particular, the logging site receives play information from the network, and the play information includes the number of times that the content data has been played by the associated content player . Also provided is a method for tracking usage of digital content on user devices. According to t he method, a license to play digital content data is sold to a user, and the licensed content data i s transmitted to a content player for the user. Further, information is transmitted to a logging site whenever the content data is played by the content player or copied from the content player to an external medium so that usage of the licensed content data can be tracked.

    15.
    发明专利
    未知

    公开(公告)号：DE60030814D1

    公开(公告)日：2006-11-02

    申请号：DE60030814

    申请日：2000-07-05

    Applicant: IBM

    Inventor： HURTADO MARCO M ,  MILSTED KENNETH L ,  GRUSE GEORGE G ,  DOWNS EDGAR ,  LEHMAN CHRISTOPHER T ,  SPAGNA RICHARD L ,  LOTSPIECH JEFFREY B

    IPC: G06F1/00 ,  G06F15/00 ,  G06F21/24 ,  G06F21/00 ,  G06Q20/38 ,  G06Q20/40 ,  G06T1/00 ,  G09C1/00 ,  G10K15/02 ,  H03M7/30 ,  H04L9/08 ,  H04L9/10 ,  H04L29/06 ,  H04L29/08 ,  H04N7/167 ,  H04N7/173

    Abstract: A method to delivery encrypted digital content to a end user system for playing the content comprising the steps of: reading from a computer readable medium metadata which has previously associated with the content. A user selects from the metadata associated content to decrypt and the end user system establishes a secure connection with an authorisation authority for decrypt ing the content. The end user system receives a secure container containing the decrypting key for decrypting at least part of the previously encrypted content as permitted. The system creates a secure container using the encrypting key from a clearing house, wherein the secure container has an encrypting key therein from the end user system; transferring the secure container to the clearing house for authentication of permission to decrypt the content. The system receives from the clearing house, a secure container encrypted using the encrypting key of the end user system containing the decrypting key for decrypting at least part of the previously encrypted content stored on the computer readable medium as permitted; and playing at least part of the previously encrypted content by decrypting the secure container using the encrypting key of the end user system to access the decrypting key for decrypting at least part of the encrypted content.

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