公开(公告)号：US20100017501A1

公开(公告)日：2010-01-21

申请号：US12281977

申请日：2007-05-02

申请人： Wei Yen ,  Pramila Srinivasan ,  John Princen ,  Raymond Lo ,  Wilson Ho

发明人： Wei Yen ,  Pramila Srinivasan ,  John Princen ,  Raymond Lo ,  Wilson Ho

IPC分类号： G06F21/00 ,  G06F15/16 ,  G06F17/30

摘要： A technique for content management involves storing runtime state of content externally. A system created according to the technique may include a state server that receives runtime state of content from a playback device, and provides the runtime state to that or another playback device upon request. A playback device constructed according to the technique may include a content state recovery engine for recovering runtime state that was previously stored externally to the playback device. A method according to the technique may include generating the runtime state locally, storing the runtime state externally, and re-acquiring the runtime state.

摘要翻译： 一种用于内容管理的技术涉及从外部存储内容的运行时状态。 根据技术创建的系统可以包括状态服务器，其从播放设备接收内容的运行时状态，并且根据请求将该运行时状态提供给该或另一播放设备。 根据该技术构造的重放设备可以包括用于恢复先前存储在播放设备外部的运行时状态的内容状态恢复引擎。 根据该技术的方法可以包括本地生成运行时状态，在外部存储运行时状态，并重新获取运行时状态。

公开(公告)号：US10664575B2

公开(公告)日：2020-05-26

申请号：US12281977

申请日：2007-05-02

申请人： Wei Yen ,  Pramila Srinivasan ,  John Princen ,  Raymond Lo ,  Wilson Ho

发明人： Wei Yen ,  Pramila Srinivasan ,  John Princen ,  Raymond Lo ,  Wilson Ho

IPC分类号： G06F21/12 ,  H04L9/32 ,  H04L29/06 ,  G06F21/10 ,  A63F13/35 ,  A63F13/71 ,  A63F13/79

摘要： A technique for content management involves storing runtime state of content externally. A system created according to the technique may include a state server that receives runtime state of content from a playback device, and provides the runtime state to that or another playback device upon request. A playback device constructed according to the technique may include a content state recovery engine for recovering runtime state that was previously stored externally to the playback device. A method according to the technique may include generating the runtime state locally, storing the runtime state externally, and re-acquiring the runtime state.

公开(公告)号：US07779482B1

公开(公告)日：2010-08-17

申请号：US10727332

申请日：2003-12-02

申请人： Wei Yen ,  John Princen ,  Raymond Lo ,  Pramila Srinivasan

发明人： Wei Yen ,  John Princen ,  Raymond Lo ,  Pramila Srinivasan

IPC分类号： G06F7/14 ,  G06F17/30 ,  H04N7/16

CPC分类号： G06F21/10 ,  G06Q10/00 ,  H04L9/3226 ,  H04L9/3247 ,  H04L2209/603

摘要： Delivery of licenses in a closed distribution system including a playback device and secure processor. The secure processor allows only use of authorized content, and the playback device is authorized to execute content. A user requests a license to selected content using a communication link, without the playback device, outside the closed content system to a license server. The user requests licenses using SMS, sending small amounts of information, possibly including proofs of purchase. The server responds using SMS, providing the user with a code representing information interpretable as a license, such as an encrypted content key or a shared secret known to the user. The user, using a keypad or other device, inputs that code to the playback device, which determines if it authorizes use of the content. The playback device authenticates the license, determining whether that license authorizes the user for the content, and enforces the licensed rights.

摘要翻译： 在封闭的分销系统中提供许可证，包括播放设备和安全处理器。 安全处理器仅允许使用授权的内容，并且播放设备被授权执行内容。 用户使用通信链路向所选择的内容请求许可证，而没有播放设备，在关闭的内容系统之外的许可证服务器。 用户使用SMS请求许可证，发送少量信息，可能包括购买证明。 服务器使用SMS进行响应，向用户提供表示作为许可证解释的信息的代码，例如加密的内容密钥或用户已知的共享秘密。 使用键盘或其他设备的用户将该代码输入到播放设备，该设备确定是否授权使用该内容。 回放设备认证许可证，确定该许可证是否授权用户内容，并强制执行许可权限。

公开(公告)号：US20070255659A1

公开(公告)日：2007-11-01

申请号：US11416361

申请日：2006-05-01

申请人： Wei Yen ,  John Princen ,  Raymond Lo ,  Wilson Ho

发明人： Wei Yen ,  John Princen ,  Raymond Lo ,  Wilson Ho

IPC分类号： G06Q99/00

CPC分类号： G06F21/10

摘要： A technique for DRM translation involves converting first digital content into second digital content. An example of a system according to the technique includes a server that provides a first digital content unit coded with a first digital format and use-right protected by first digital rights management (DRM). The system further includes a translator capable of converting the first digital content unit into a second digital content unit coded with a second digital format and use-right protected by second DRM.

摘要翻译： 用于DRM​​翻译的技术涉及将第一数字内容转换为第二数字内容。 根据该技术的系统的示例包括提供用第一数字格式编码的第一数字内容单元和由第一数字版权管理（DRM）保护的使用权的服务器。 该系统还包括能够将第一数字内容单元转换为用第二数字格式编码的第二数字内容单元和由第二DRM保护的使用权的转换器。

公开(公告)号：US08131649B2

公开(公告)日：2012-03-06

申请号：US10703149

申请日：2003-11-05

申请人： Wei Yen ,  David Blythe ,  John Princen ,  Pramila Srinivasan

发明人： Wei Yen ,  David Blythe ,  John Princen ,  Pramila Srinivasan

IPC分类号： G06F21/00

CPC分类号： G06F21/71 ,  G06F21/10 ,  G06F21/51 ,  G06F21/52 ,  G06F21/73 ,  G06F21/74 ,  G06F2221/0773 ,  Y10S707/99939

摘要： Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Pre-loading or dynamically sending new content to the owner of the current content, with rights being enabled only at a later time, in the playback device, with predetermined conditions. In response to current state information, dynamically sending a license for new content from a server. Conditional or dynamic licenses to new content, including a set of rights associated with a class of possible sets of state information. Assignment of limited rights to a content, with support in a secure player to enforce them; for purposes of rental, bonus content, trials and other business models.

摘要翻译： 内容权限的动态分配，例如封闭的分发系统。 注意由当前内容的项目生成的状态信息，以及响应地修改新内容的状态或权限。 预先加载或动态地将新内容发送给当前内容的所有者，只有稍后才能在播放设备中以预定条件启用权限。 响应于当前状态信息，从服务器动态地发送新内容的许可证。 对新内容的条件或动态许可证，包括与一组可能的状态信息相关联的一组权限。 赋予内容的有限权利，并在安全的玩家中支持执行; 出租，奖金内容，试用等商业模式。

公开(公告)号：US20050273438A1

公开(公告)日：2005-12-08

申请号：US11203357

申请日：2005-08-12

申请人： Wei Yen ,  David Blythe ,  John Princen ,  Pramila Srinivasan

发明人： Wei Yen ,  David Blythe ,  John Princen ,  Pramila Srinivasan

IPC分类号： G06F20060101 ,  G06F21/00 ,  G06F17/60

CPC分类号： G06F21/71 ,  G06F21/10 ,  G06F21/51 ,  G06F21/52 ,  G06F21/73 ,  G06F21/74 ,  G06F2221/0773 ,  Y10S707/99939

摘要： Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Preloading or dynamically sending new content to the owner of the current content, with rights being enabled only at a later time, in the playback device, with predetermined conditions. In response to current state information, dynamically sending a license for new content from a server. Conditional or dynamic licenses to new content, including a set of rights associated with a class of possible sets of state information. Assignment of limited rights to a content, with support in a secure player to enforce them; for purposes of rental, bonus content, trials and other business models.

摘要翻译： 内容权限的动态分配，例如封闭的分发系统。 注意由当前内容的项目生成的状态信息，以及响应地修改新内容的状态或权限。 预先加载或动态地将新内容发送给当前内容的所有者，只有稍后才能在播放设备中以预定条件启用权限。 响应于当前状态信息，从服务器动态地发送新内容的许可证。 对新内容的条件或动态许可证，包括与一组可能的状态信息相关联的一组权限。 赋予内容的有限权利，并在安全的玩家中支持执行; 出租，奖金内容，试用等商业模式。

公开(公告)号：US20090150293A1

公开(公告)日：2009-06-11

申请号：US12330487

申请日：2008-12-08

申请人： Wei Yen ,  David Blythe ,  John Princen ,  Pramila Srinivasan

发明人： Wei Yen ,  David Blythe ,  John Princen ,  Pramila Srinivasan

IPC分类号： H04L9/00 ,  G06N5/02 ,  G06F21/24 ,  H04L9/32

CPC分类号： G06F21/71 ,  G06F21/10 ,  G06F21/51 ,  G06F21/52 ,  G06F21/73 ,  G06F21/74 ,  G06F2221/0773 ,  Y10S707/99939

摘要： Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Preloading or dynamically sending new content to the owner of the current content, with rights being enabled only at a later time, in the playback device, with predetermined conditions. In response to current state information, dynamically sending a license for new content from a server. Conditional or dynamic licenses to new content, including a set of rights associated with a class of possible sets of state information. Assignment of limited rights to a content, with support in a secure player to enforce them; for purposes of rental, bonus content, trials and other business models.

摘要翻译： 内容权限的动态分配，例如封闭的分发系统。 注意由当前内容的项目生成的状态信息，以及响应地修改新内容的状态或权限。 预先加载或动态地将新内容发送给当前内容的所有者，只有稍后才能在播放设备中以预定条件启用权限。 响应于当前状态信息，从服务器动态地发送新内容的许可证。 对新内容的条件或动态许可证，包括与一组可能的状态信息相关联的一组权限。 赋予内容的有限权利，并在安全的玩家中支持执行; 出租，奖金内容，试用等商业模式。

公开(公告)号：US07464058B2

公开(公告)日：2008-12-09

申请号：US11203357

申请日：2005-08-12

申请人： Wei Yen ,  David Blythe ,  John Princen ,  Pramila Srinivasan

发明人： Wei Yen ,  David Blythe ,  John Princen ,  Pramila Srinivasan

IPC分类号： H04L9/00

CPC分类号： G06F21/71 ,  G06F21/10 ,  G06F21/51 ,  G06F21/52 ,  G06F21/73 ,  G06F21/74 ,  G06F2221/0773 ,  Y10S707/99939

摘要： Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Preloading or dynamically sending new content to the owner of the current content, with rights being enabled only at a later time, in the playback device, with predetermined conditions. In response to current state information, dynamically sending a license for new content from a server. Conditional or dynamic licenses to new content, including a set of rights associated with a class of possible sets of state information. Assignment of limited rights to a content, with support in a secure player to enforce them; for purposes of rental, bonus content, trials and other business models.

摘要翻译： 内容权限的动态分配，例如封闭的分发系统。 注意由当前内容的项目生成的状态信息，以及响应地修改新内容的状态或权限。 预先加载或动态地将新内容发送给当前内容的所有者，只有稍后才能在播放设备中以预定条件启用权限。 响应于当前状态信息，从服务器动态地发送新内容的许可证。 对新内容的条件或动态许可证，包括与一组可能的状态信息相关联的一组权限。 赋予内容的有限权利，并在安全的玩家中支持执行; 出租，奖金内容，试用等商业模式。

公开(公告)号：US20050132217A1

公开(公告)日：2005-06-16

申请号：US11048515

申请日：2005-01-31

申请人： Pramila Srinivasan ,  John Princen ,  Frank Berndt ,  David Blythe ,  William Saperstein ,  Wei Yen

发明人： Pramila Srinivasan ,  John Princen ,  Frank Berndt ,  David Blythe ,  William Saperstein ,  Wei Yen

IPC分类号： G06F21/00 ,  H04L9/00

CPC分类号： G06F21/71 ,  G06F21/10 ,  G06F21/51 ,  G06F21/52 ,  G06F21/73 ,  G06F21/74

摘要： A secure processor assuring application software is executed securely, and assuring only authorized software is executed, monitored modes and secure modes of operation. The former executes application software transparently to that software. The latter verifies execution of the application software is authorized, performs any extraordinary services required by the application software, and verifies the processor has obtained rights to execute the content. The secure processor (1) appears hardware-identical to an ordinary processor, with the effect that application software written for ordinary processors can be executed on the secure processor without substantial change, (2) needs only a minimal degree of additional hardware over and above those portions appearing hardware-identical to an ordinary processor. The secure processor operates without substantial reduction in speed or other resources available to the application software. Functions operating in secure mode might reside in an on-chip non-volatile memory, or might be loaded from external storage with authentication.

摘要翻译： 确保应用软件的安全处理器被安全地执行，并且仅确保授权的软件被执行，监视模式和安全的操作模式。 前者对该软件透明地执行应用软件。 后者验证应用软件的执行是否被授权，执行应用软件所需的任何非凡服务，并验证处理器是否已获得执行内容的权限。 安全处理器（1）看起来与普通处理器硬件相同，其结果是可以在安全处理器上执行为普通处理器编写的应用软件，而无需实质性的改变，（2）仅需要最小程度的附加硬件 这些部分出现与普通处理器相同的硬件。 安全处理器没有大幅降低速度或可用于应用软件的其他资源。 以安全模式运行的功能可能驻留在片上非易失性存储器中，或者可以通过认证从外部存储器加载。

公开(公告)号：US20050273439A1

公开(公告)日：2005-12-08

申请号：US11203358

申请日：2005-08-12

申请人： Wei Yen ,  David Blythe ,  John Princen ,  Pramila Srinivasan

发明人： Wei Yen ,  David Blythe ,  John Princen ,  Pramila Srinivasan

IPC分类号： G06F20060101 ,  G06F21/00 ,  G06F17/60

CPC分类号： G06F21/71 ,  G06F21/10 ,  G06F21/51 ,  G06F21/52 ,  G06F21/73 ,  G06F21/74 ,  G06F2221/0773 ,  Y10S707/99939

摘要： Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Preloading or dynamically sending new content to the owner of the current content, with rights being enabled only at a later time, in the playback device, with predetermined conditions. In response to current state information, dynamically sending a license for new content from a server. Conditional or dynamic licenses to new content, including a set of rights associated with a class of possible sets of state information. Assignment of limited rights to a content, with support in a secure player to enforce them; for purposes of rental, bonus content, trials and other business models.

摘要翻译： 内容权限的动态分配，例如封闭的分发系统。 注意由当前内容的项目生成的状态信息，以及响应地修改新内容的状态或权限。 预先加载或动态地将新内容发送给当前内容的所有者，只有稍后才能在播放设备中以预定条件启用权限。 响应于当前状态信息，从服务器动态地发送新内容的许可证。 对新内容的条件或动态许可证，包括与一组可能的状态信息相关联的一组权限。 赋予内容的有限权利，并在安全的玩家中支持执行; 出租，奖金内容，试用等商业模式。