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    System for controlling the distribution and use of composite digital works
    3.
    发明公开
    System for controlling the distribution and use of composite digital works 失效

    公开(公告)号：EP1335262A1

    公开(公告)日：2003-08-13

    申请号：EP03008004.8

    申请日：1995-11-23

    Applicant: ContentGuard Holdings, Inc.

    Inventor： Stefik, Mark J. ,  Pirolli, Peter L. ,  Bobrow, Daniel G.

    IPC: G06F1/00

    CPC classification number: H04N21/44012 ,  G06F21/10 ,  G06F2211/007 ,  G06F2221/2135 ,  G11B20/00789 ,  H04L63/0442 ,  H04L63/0823 ,  H04L63/105 ,  H04L2463/101 ,  H04N21/23412 ,  H04N21/2396 ,  H04N21/2541 ,  H04N21/835 ,  H04N21/8355

    Abstract: A system for controlling use and distribution of composite digital works. A digital work is comprised of a description part (700) and a content part. The description part contains control information for the composite digital work. The content part stores the actual digital data comprising the composite digital work. The description part (700) is logically organized in an acyclic structure, e.g. a tree structure. For a composite digital work each node of the acyclic structure represents an individual digital work or some distribution interest in the composite digital work. A node in the acyclic structure is comprised of an identifier (701) of the individual work, usage rights (704) for the individual digital work and a pointer (705,706) to the digital work. Composite digital works are stored in repositories. A repository has two primary operating modes, a server mode and a requester mode. When operating in a server mode, the repository is responding to requests to access digital works. When operating in requester mode, the repository is requesting access to a digital work. A repository will process each request to access a composite digital work by examining the usage rights for each individual digital work found in the description part of the composite digital work.

    System for controlling the distribution and use of composite digital works
    4.
    发明公开
    System for controlling the distribution and use of composite digital works 失效
    系统控制复合数字作品的分配和使用

    公开(公告)号：EP1293869A3

    公开(公告)日：2003-06-04

    申请号：EP02028706.6

    申请日：1995-11-23

    Applicant: ContentGuard Holdings, Inc.

    Inventor： Stefik, Mark J. ,  Pirolli, Peter L. ,  Bobrow, Daniel G.

    IPC: G06F1/00

    CPC classification number: H04N21/44012 ,  G06F21/10 ,  G06F2211/007 ,  G06F2221/2135 ,  G11B20/00789 ,  H04L63/0442 ,  H04L63/0823 ,  H04L63/105 ,  H04L2463/101 ,  H04N21/23412 ,  H04N21/2396 ,  H04N21/2541 ,  H04N21/835 ,  H04N21/8355

    Abstract: A system for controlling use and distribution of composite digital works. A digital work is comprised of a description part (700) and a content part. The description part contains control information for the composite digital work. The content part stores the actual digital data comprising the composite digital work. The description part (700) is logically organized in an acyclic structure, e.g. a tree structure. For a composite digital work each node of the acyclic structure represents an individual digital work or some distribution interest in the composite digital work. A node in the acyclic structure is comprised of an identifier (701) of the individual work, usage rights (704) for the individual digital work and a pointer (705,706) to the digital work. Composite digital works are stored in repositories. A repository has two primary operating modes, a server mode and a requester mode. When operating in a server mode, the repository is responding to requests to access digital works. When operating in requester mode, the repository is requesting access to a digital work. A repository will process each request to access a composite digital work by examining the usage rights for each individual digital work found in the description part of the composite digital work.

    Apparatus and method for managing contents in a computer
    6.
    发明公开
    Apparatus and method for managing contents in a computer 审中-公开
    Refner和Vorrichtung zur Inhaltsverwaltung在einem Rechner

    公开(公告)号：EP1130496A2

    公开(公告)日：2001-09-05

    申请号：EP01101537.7

    申请日：2001-01-24

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Satoshi, Watanabe, c/o Kabushiki Kaisha Toshiba

    IPC: G06F1/00

    CPC classification number: G11B27/105 ,  G06F21/10 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00347 ,  G11B20/00789 ,  G11B27/34 ,  G11B2220/61

    Abstract: A library display section (80) and a PD display section (110) are displayed in a management window (70) on a PD edit screen. By selecting conditions to be retrieved by a retrieval condition setting section (81) and clicking a retrieval key in a retrieval key setting section (82), a music data storage section is retrieved and relevant contents are displayed on a library list display section (87). By selecting contents displayed on the library list display section (87) and operating an add button (88), the selected contents are transmitted to the PD and displayed in a PD contents list display section (112). At this time, the contents-transferable number of times that is displayed in the list of the library list display section (87) is decreased by one. If the contents-transferable number of times is managed, the number of duplicated contents can be limited.

    Abstract translation: 图书馆显示部分（80）和PD显示部分（110）被显示在PD编辑屏幕上的管理窗口（70）中。 通过选择要由检索条件设置部分（81）检索并在检索键设置部分（82）中点击检索键的条件，检索音乐数据存储部分，并将相关内容显示在库列表显示部分（87 ）。 通过选择库列表显示部分（87）上显示的内容并操作加法按钮（88），所选择的内容被发送到PD并显示在PD内容列表显示部分（112）中。 此时，将库列表显示部（87）的列表中显示的内容转移次数减少一个。 如果管理内容可传送次数，则可以限制重复内容的数量。

    REGISTERING COPY PROTECTED MATERIAL IN A CHECK-OUT, CHECK-IN SYSTEM
    8.
    发明公开
    REGISTERING COPY PROTECTED MATERIAL IN A CHECK-OUT, CHECK-IN SYSTEM 有权
    禁止复制材料在出/签系统注册

    公开(公告)号：EP1092220A1

    公开(公告)日：2001-04-18

    申请号：EP00918895.4

    申请日：2000-04-27

    Applicant: Koninklijke Philips Electronics N.V.

    Inventor： EPSTEIN, Michael, A.

    IPC: G11B20/00 ,  G06F1/00

    CPC classification number: G11B20/00789 ,  G06F21/10 ,  G06F2211/008 ,  G06F2221/2143 ,  G11B20/00086 ,  H04N5/913

    Abstract: In a limited-copy protection scheme, a check-out/check-in system is configured to a) verify that the receiving device is a certified conforming device, and b) verify that the device that checks-in content material is the same device that checked-out the content material. The verification of the receiving device is effected via a conventional certification process. The verification that the same device is used for check-in and check-out is effected via a secure challenge-response protocol. As contrast to a conventional contemporaneous challenge-response protocol, the system provides a challenge that is specific to the receiving device when the content material is checked-out, and verifies the appropriate response when the content material is checked-in. Because the challenge-response is specific to the receiving device, only the device that receives the challenge when the content material is checked-out can provide the appropriate response when the content material is checked-in.

    REGISTERING COPY PROTECTED MATERIAL IN A CHECK-OUT, CHECK-IN SYSTEM
    10.
    发明授权
    REGISTERING COPY PROTECTED MATERIAL IN A CHECK-OUT, CHECK-IN SYSTEM 有权
    禁止复制材料在出/签系统注册

    公开(公告)号：EP1092220B1

    公开(公告)日：2006-02-22

    申请号：EP00918895.4

    申请日：2000-04-27

    Applicant: Koninklijke Philips Electronics N.V.

    Inventor： EPSTEIN, Michael, A.

    IPC: G11B20/00 ,  G06F1/00

    CPC classification number: G11B20/00789 ,  G06F21/10 ,  G06F2211/008 ,  G06F2221/2143 ,  G11B20/00086 ,  H04N5/913

    Abstract: In a limited-copy protection scheme, a check-out/check-in system is configured to a) verify that the receiving device is a certified conforming device, and b) verify that the device that checks-in content material is the same device that checked-out the content material. The verification of the receiving device is effected via a conventional certification process. The verification that the same device is used for check-in and check-out is effected via a secure challenge-response protocol. As contrast to a conventional contemporaneous challenge-response protocol, the system provides a challenge that is specific to the receiving device when the content material is checked-out, and verifies the appropriate response when the content material is checked-in. Because the challenge-response is specific to the receiving device, only the device that receives the challenge when the content material is checked-out can provide the appropriate response when the content material is checked-in.

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