WATERMARKING FILM PRINTS
    2.
    发明申请
    WATERMARKING FILM PRINTS 审中-公开
    水印膜

    公开(公告)号:WO2004063985A1

    公开(公告)日:2004-07-29

    申请号:PCT/IB2003/006350

    申请日:2003-12-08

    CPC classification number: G06T1/0021 G06T2201/0051

    Abstract: The present invention relates to adding watermark information to film prints. This performed when duplicating an original film print (405) to an undeveloped copy film (407), where a surface of the original film print is positioned close to a surface of the undeveloped film. The surface of the undeveloped film is exposed with light transferred through the surface of the original film print. The watermark is obtained from a number of individually controllable light sources (411), such that the light transferred through the surface of the original film print (405) has a predefined pattern depending on how the light from the light source (409) is controlled. The invention further relates to a storage medium comprising instructions for performing the method of adding watermark information, a system for adding watermark information and a system for determining the legality of a film print copy.

    Abstract translation: 本发明涉及向胶片印刷品添加水印信息。 当将原始胶片打印(405)复制到未打印的复印胶片(407)时,其中原始胶片打印件的表面位于未开发胶片的表面的位置。 未开发的膜的表面暴露于通过原始胶片印刷表面的光。 从多个独立可控的光源(411)获得水印,使得通过原始胶片印刷(405)的表面传输的光具有取决于来自光源(409)的光的控制的预定图案 。 本发明还涉及包括用于执行添加水印信息的方法的指令的存储介质,用于添加水印信息的系统和用于确定胶片打印副本的合法性的系统。

    RECEIVING DEVICE FOR SECURELY STORING A CONTENT ITEM, AND PLAYBACK DEVICE
    3.
    发明申请
    RECEIVING DEVICE FOR SECURELY STORING A CONTENT ITEM, AND PLAYBACK DEVICE 审中-公开
    用于安全存储内容项目和回放设备的接收设备

    公开(公告)号:WO2002073378A2

    公开(公告)日:2002-09-19

    申请号:PCT/IB2002/000245

    申请日:2002-01-28

    Abstract: A receiving device (110) for securely storing a content item (102) on a storage medium (111). The content item (102) is stored in a secure format, and has an associated license file. The license file (141) is encrypted using public key associated with a group of playback devices (120, 121), so that each playback device (121) in the group can decrypt the license file (141) and play the content item (102), but devices outside the group cannot. A playback device (121) can provide a device-specific public key to a Content Distribution Management System (CDMS). The CDMS then returns the secret key for the group encrypted with the public key of the playback device (121). The playback device (121) then securely obtains the secret key of the group and is subsequently able to decrypt the license file (141).

    Abstract translation: 一种用于将内容项(102)安全地存储在存储介质(111)上的接收设备(110)。 内容项目(102)以安全格式存储,并且具有关联的许可证文件。 许可证文件(141)使用与一组重放设备(120,121)相关联的公开密钥进行加密,使得该组中的每个回放设备(121)可以解密许可证文件(141)并播放内容项目(102) ),但组外的设备不能。 再现设备(121)可以向内容分发管理系统(CDMS)提供特定设备的公共密钥。 然后,CDMS返回用回放装置(121)的公开密钥加密的组的秘密密钥。 播放装置(121)然后安全地获得该组的秘密密钥,并且随后能够解密许可证文件(141)。

    CONNECTION LINKED RIGHTS PROTECTION
    4.
    发明申请
    CONNECTION LINKED RIGHTS PROTECTION 审中-公开
    连接链接保护

    公开(公告)号:WO2005055022A1

    公开(公告)日:2005-06-16

    申请号:PCT/IB2004/052484

    申请日:2004-11-19

    CPC classification number: G06F21/10 G06F2221/0706 G06F2221/2111

    Abstract: The present invention relates to a method and a system for performing digital rights management. The idea of the invention is that a master right associated with a content is stored at a first authorised device (211). An authorised device is a device which can be considered trusted and performs actions with contents according to the associated rights. These devices enforce rights that are bound to contents, and perform the security tasks of the DRM system employed. A subright is derived from the master right, which subright controls what type of access a second authorised device (261) is given to the associated content. Finally, the subright is distributed to the second authorised device, given that the second device complies with predetermined distribution criteria associated with the master right. The device distributing the subright authenticates the device which is to receive the subright, ensuring that the second device can be trusted.

    Abstract translation: 本发明涉及一种执行数字版权管理的方法和系统。 本发明的思想是与内容相关联的主权利被存储在第一授权装置(211)。 授权设备是可被认为是可信任的设备,并且根据相关权限执行具有内容的动作。 这些设备执行绑定到内容的权限,并执行所采用的DRM系统的安全任务。 子权限来自主权利,该权限控制向相关联内容给予第二授权设备(261)的什么类型的访问。 最后,鉴于第二设备符合与主权限相关联的预定分配准则,子网分配给第二授权设备。 分发子设备的设备认证接收子设备的设备,确保第二个设备可信。

    IMPORT CONTROL OF CONTENT
    5.
    发明申请
    IMPORT CONTROL OF CONTENT 审中-公开
    内容的进口控制

    公开(公告)号:WO2004071088A1

    公开(公告)日:2004-08-19

    申请号:PCT/IB2004/050048

    申请日:2004-01-23

    Abstract: A method of and device for controlling import of content into a domain comprising a number of devices. The method comprises checking for the presence of a domain watermark in the content, and if the domain watermark is found in the content, refusing import of the content into the domain, and if the domain watermark is not found in the content, allowing import of the content into the domain and causing the domain watermark to be embedded into the content. Optionally, re-importing into the "original" domain might be allowed. In this embodiment the method further comprises refusing import of the content into the domain if the domain watermark is found in the content unless the identifier matches an identifier for the domain. Other payloads in the domain watermark can be used to e.g. implement location- or time-based restrictions on import.

    Abstract translation: 一种用于控制将内容导入包括多个设备的域的方法和设备。 该方法包括在内容中检查域水印的存在,如果在内容中发现域水印,拒绝将内容导入到域中,并且如果在该内容中没有找到域水印,则允许导入 内容进入域并导致域水印嵌入到内容中。 可选地,可以允许重新导入“原始”域。 在该实施例中,如果在内容中找到域水印,则该方法还包括拒绝将内容导入到域中,除非标识符与域的标识符匹配。 域水印中的其他有效载荷可以用于例如 实施进口定位或基于时间的限制。

    SECURITY MODULES FOR CONDITIONAL ACCESS WITH RESTRICTIONS
    6.
    发明申请
    SECURITY MODULES FOR CONDITIONAL ACCESS WITH RESTRICTIONS 审中-公开
    用于限制条件访问的安全模块

    公开(公告)号:WO2003092264A1

    公开(公告)日:2003-11-06

    申请号:PCT/IB2003/001668

    申请日:2003-04-22

    Abstract: A system (100) comprising a plurality of interconnected devices (101-105) and being arranged to provide the devices (101-105) conditional access to protected content items, characterized in that the system (100) is arranged to restrict the number of simultaneous sessions involving said protected content items to a predetermined total limit. Preferably the system (100) restricts the number of content items that can be accessed simultaneously to the predetermined limit. Security modules (300) such as smart cards can be used for this purpose. Each security module (300) may be arranged to restrict the number of content items to which it provides access simultaneously to an individual limit, which can change over time. The system restricts the sum of the individual limits to the predetermined total limit. If the limit is reached, further sessions may be refused or allowed at reduced quality level.

    Abstract translation: 一种系统(100),包括多个互连设备(101-105)并且被布置为向所述设备(101-105)提供对受保护内容项的条件访问,其特征在于,所述系统(100)被布置为限制 涉及所述受保护内容项目的同时会话达到预定的总限制。 优选地,系统(100)将可以同时访问的内容项目的数量限制到预定极限。 安全模块(300)如智能卡可用于此目的。 每个安全模块(300)可以被布置为将其提供访问的内容项目的数量限制到可以随时间改变的单个限制。 系统将各个限制的总和限制在预定的总限制。 如果达到极限,可能会在降低质量水平的情况下拒绝或允许进一步的会议。

    FLEXIBLE STORAGE OF MEDIA INFORMATION
    7.
    发明申请

    公开(公告)号:WO2003071808A3

    公开(公告)日:2003-08-28

    申请号:PCT/IB2003/000216

    申请日:2003-01-21

    Abstract: Items of media information are stored in separately reusable blocks of memory. Items are split into a plurality of layers, so that the item can be represented at reduced quality by a subset of the layers without using a remainder of the layers. Each layer is stored in a respective one of the blocks. When information of a subsequent item is stored, a block for storing the information of the second item dependent on a number of blocks that is in use for storing information. An unused block is selected when the number of blocks that is in use is below a threshold number. When the number is above the threshold number a block is re-used that was previously used for storing a layer from said remainder. Preferably, when the layers are encrypted, different layers of the first item are encrypted independently of one another, so that each layer can be decrypted even if the remainder has been overwritten.

    FLEXIBLE STORAGE OF MEDIA INFORMATION
    8.
    发明申请
    FLEXIBLE STORAGE OF MEDIA INFORMATION 审中-公开
    灵活存储媒体信息

    公开(公告)号:WO2003071808A2

    公开(公告)日:2003-08-28

    申请号:PCT/IB2003/000216

    申请日:2003-01-21

    Abstract: Items of media information are stored in separately reusable blocks of memory. Items are split into a plurality of layers, so that the item can be represented at reduced quality by a subset of the layers without using a remainder of the layers. Each layer is stored in a respective one of the blocks. When information of a subsequent item is stored, a block for storing the information of the second item dependent on a number of blocks that is in use for storing information. An unused block is selected when the number of blocks that is in use is below a threshold number. When the number is above the threshold number a block is re-used that was previously used for storing a layer from said remainder. Preferably, when the layers are encrypted, different layers of the first item are encrypted independently of one another, so that each layer can be decrypted even if the remainder has been overwritten.

    Abstract translation: 媒体信息的项目被存储在可重复使用的存储块中。 项目被分割成多个层,使得可以通过层的子集以低质量来表示项目,而不使用层的其余部分。 每个层存储在相应的一个块中。 当存储后续项目的信息时,存储用于存储第二项目的信息的块,这取决于正用于存储信息的块的数量。 当使用的块的数量低于阈值数时,选择未使用的块。 当数量高于阈值数时,重新使用先前用于存储来自所述余数的层的块。 优选地,当层被加密时,第一项目的不同层被彼此独立地加密,使得即使其余部分被覆盖也可以对每个层进行解密。

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