公开(公告)号：US07804958B2

公开(公告)日：2010-09-28

申请号：US12184957

申请日：2008-08-01

申请人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Thomas H. James

发明人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Thomas H. James

IPC分类号： H04N7/167

CPC分类号： H04N21/4181 ,  G06Q20/201 ,  H04N5/783 ,  H04N5/913 ,  H04N7/167 ,  H04N21/4325 ,  H04N21/4334 ,  H04N21/440281 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/4623 ,  H04N21/4627 ,  H04N21/47211 ,  H04N21/63345 ,  H04N2005/91364

摘要： A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. In summary, the present invention describes a system and method for storing and retrieving program material for subsequent replay. The method comprises the steps of accepting encrypted access control information and the program material encrypted according to a first encryption key, the access control information including a first encryption key and control data; decrypting the received access control information to produce the first encryption key; decrypting the program material using the first encryption key; re-encrypting the program material using according to a second encryption key; encrypting the second encryption key according to a third encryption key to produce a fourth encryption key; and providing the re-encrypted program material and a fourth encryption key for storage. The apparatus comprises a conditional access module, for accepting encrypted access control information and the program material encrypted according to a first encryption key, the encrypted access control information including the first encryption key and temporally-variant control data, the control access module comprising a first decryption module, for decrypting the access control information to produce the first encryption key; a first encryption module, for encrypting a second encryption key with a third encryption key to produce a fourth encryption key; and a second decryption module for decrypting the fourth encryption key to produce the second encryption key.

摘要翻译： 公开了用于存储和检索用于后续重放的程序材料的方法和装置。 总之，本发明描述了一种用于存储和检索用于后续重放的节目素材的系统和方法。 该方法包括以下步骤：接收加密的访问控制信息和根据第一加密密钥加密的程序素材，所述访问控制信息包括第一加密密钥和控制数据; 解密所接收的访问控制信息以产生第一加密密钥; 使用所述第一加密密钥解密所述节目素材; 根据第二加密密钥重新加密所述节目素材; 根据第三加密密钥加密第二加密密钥以产生第四加密密钥; 并提供重新加密的节目素材和用于存储的第四加密密钥。 该装置包括条件访问模块，用于接收加密的访问控制信息和根据第一加密密钥加密的程序素材，加密的访问控制信息包括第一加密密钥和时间变量控制数据，控制访问模块包括第一 解密模块，用于解密所述访问控制信息以产生所述第一加密密钥; 第一加密模块，用于利用第三加密密钥加密第二加密密钥以产生第四加密密钥; 以及用于解密第四加密密钥以产生第二加密密钥的第二解密模块。

公开(公告)号：US20090086969A1

公开(公告)日：2009-04-02

申请号：US11862981

申请日：2007-09-27

申请人： Peter M. Klauss ,  Raynold M. Kahn ,  Thomas H. James

发明人： Peter M. Klauss ,  Raynold M. Kahn ,  Thomas H. James

IPC分类号： H04N7/167 ,  H04K1/00 ,  H04L9/00 ,  H04L9/08

CPC分类号： H04L9/0833 ,  H04L63/0464 ,  H04L63/101 ,  H04L2209/601 ,  H04L2209/80 ,  H04N7/1675 ,  H04N7/17354 ,  H04N21/2143 ,  H04N21/4405 ,  H04N21/4408

摘要： A communication system 10 includes a head end 12. The head end communicates with a system gateway 26. A plurality of user devices 28 is coupled to the gateway 26. The gateway receives the plurality of first encrypted signals, decrypts the plurality of first encrypted signals to form unencrypted signals and encrypts the unencrypted signals with a second encryption to form a plurality of second encrypted signals and communicates the second encrypted signals to the plurality of user devices. The signals may also be super-encrypted signals. That is, rather than un-encrypting at the gateway, the first encrypted signals may be again encrypted.

摘要翻译： 通信系统10包括头端12.头端与系统网关26通信。多个用户设备28耦合到网关26.网关接收多个第一加密信号，对多个第一加密信号进行解密 以形成未加密的信号并用第二加密来加密未加密的信号，以形成多个第二加密信号，并将第二加密信号传送到多个用户设备。 信号也可以是超加密信号。 也就是说，不是在网关处解密，而是可以再次加密第一加密信号。

公开(公告)号：US20120155837A1

公开(公告)日：2012-06-21

申请号：US13402584

申请日：2012-02-22

申请人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Thomas H. James

发明人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Thomas H. James

IPC分类号： H04N9/80

CPC分类号： H04N5/913 ,  H04N2005/91364

摘要： A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. The method comprises the steps of receiving a data stream comprising the program material encrypted according to a first (CW) encryption key, decrypting the program material; re-encrypting the program material according to a second encryption key, and storing the re-encrypted material in a media storage device. The program material is played back by retrieving the re-encrypted material from the media storage device and decrypting the re-encrypted program material. In one embodiment, the media storage device also stores the second encryption key which has been further encrypted by a key that is unique to the device used to receive the program material.

摘要翻译： 公开了用于存储和检索用于后续重放的程序材料的方法和装置。 该方法包括以下步骤：接收包括根据第一（CW）加密密钥加密的节目素材的数据流，解密节目素材; 根据第二加密密钥重新加密程序资料，并将重新加密的材料存储在媒体存储设备中。 通过从媒体存储设备检索重新加密的资料并解密重新加密的节目素材来播放节目素材。 在一个实施例中，媒体存储设备还存储已经被用于接收节目素材的设备唯一的密钥进一步加密的第二加密密钥。

公开(公告)号：US08140859B1

公开(公告)日：2012-03-20

申请号：US09620833

申请日：2000-07-21

申请人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Thomas H. James

发明人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Thomas H. James

IPC分类号： G06F9/00

CPC分类号： H04N5/913 ,  H04N2005/91364

摘要： A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. The method comprises the steps of receiving a data stream comprising the program material encrypted according to a first encryption key, decrypting the program material; re-encrypting the program material according to a second encryption key; and storing the re-encrypted material in a media storage device. The program material is played back by retrieving the re-encrypted material from the media storage device and decrypting the re-encrypted program material. In one embodiment, the second encryption key is derived from metadata describing replay rights. In a further embodiment, the media storage device also stores the second encryption key which has been further encrypted by a key that is unique to the device used to receive the program material.

摘要翻译： 公开了用于存储和检索用于后续重放的程序材料的方法和装置。 该方法包括以下步骤：接收包括根据第一加密密钥加密的节目素材的数据流，解密节目素材; 根据第二加密密钥重新加密程序资料; 以及将所述重新加密的材料存储在媒体存储设备中。 通过从媒体存储设备检索重新加密的资料并解密重新加密的节目素材来播放节目素材。 在一个实施例中，第二加密密钥是从描述重放权限的元数据导出的。 在另一实施例中，媒体存储设备还存储已经被用于接收节目素材的设备唯一的密钥进一步加密的第二加密密钥。

公开(公告)号：US07203314B1

公开(公告)日：2007-04-10

申请号：US09620773

申请日：2000-07-21

申请人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Thomas H. James

发明人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Thomas H. James

IPC分类号： H04N7/167

CPC分类号： H04N5/913 ,  H04N5/783 ,  H04N7/1675 ,  H04N21/4331 ,  H04N2005/91364

摘要： A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. The apparatus comprises a conditional access module, for accepting encrypted access control information and the program material encrypted according to a first encryption key, the encrypted access control information including a first encryption key and temporally-variant control data; the conditional access module having a first decryptor module, for decrypting the encrypted access control information to produce the temporally variant control data; a conversion module for modifying the temporally-variant control data to produce temporally-invariant control data; a re-encryptor module, for re-encrypting the decrypted access control information; a second decryptor module for decrypting the re-encrypted access control information to produce the first encryption key; a copy protection encryption module, communicatively coupleable to the conditional access module and a media storage device, the copy protection encryption module for further encrypting the encrypted program material according to a second encryption key and for encrypting the second encryption key according to a third encryption key to produce a fourth encryption key; and a copy protection decryption module, communicatively coupleable to the conditional access module and the media storage device, the copy protection decryption module for decrypting the encrypted fourth encryption key to produce the second encryption key using the third encryption key.

摘要翻译： 公开了用于存储和检索用于后续重放的程序材料的方法和装置。 所述装置包括条件访问模块，用于接收加密的访问控制信息和根据第一加密密钥加密的程序素材，所述加密的访问控制信息包括第一加密密钥和时间变量控制数据; 条件访问模块具有第一解密器模块，用于解密加密的访问控制信息以产生时间上不同的控制数据; 转换模块，用于修改时变变控制数据以产生时间不变的控制数据; 再加密器模块，用于重新加密解密的访问控制信息; 第二解密器模块，用于解密所述重新加密的访问控制信息以产生所述第一加密密钥; 复制保护加密模块，可通信地耦合到条件访问模块和媒体存储设备;复制保护加密模块，用于根据第二加密密钥进一步加密加密的程序素材，并根据第三加密密钥加密第二加密密钥 以产生第四加密密钥; 以及可通信地耦合到条件访问模块和媒体存储设备的复制保护解密模块，用于解密加密的第四加密密钥以使用第三加密密钥产生第二加密密钥的复制保护解密模块。

公开(公告)号：US20120213367A1

公开(公告)日：2012-08-23

申请号：US13461617

申请日：2012-05-01

申请人： Peter M. Klauss ,  Raynold M. Kahn ,  Thomas H. James

发明人： Peter M. Klauss ,  Raynold M. Kahn ,  Thomas H. James

IPC分类号： H04K1/00

CPC分类号： H04L9/0833 ,  H04L63/0464 ,  H04L63/101 ,  H04L2209/601 ,  H04L2209/80 ,  H04N7/1675 ,  H04N7/17354 ,  H04N21/2143 ,  H04N21/4405 ,  H04N21/4408

摘要： A communication system includes a head end. The head end communicates with a system gateway. A plurality of user devices is coupled to the gateway. The gateway receives the plurality of first encrypted signals, decrypts the plurality of first encrypted signals to form unencrypted signals and encrypts the unencrypted signals with a second encryption to form a plurality of second encrypted signals and communicates the second encrypted signals to the plurality of user devices. The signals may also be super-encrypted signals. That is, rather than un-encrypting at the gateway, the first encrypted signals may be again encrypted.

摘要翻译： 通信系统包括头端。 头端与系统网关进行通信。 多个用户设备耦合到网关。 网关接收多个第一加密信号，解密多个第一加密信号以形成未加密信号，并用第二加密对未加密信号进行加密，以形成多个第二加密信号，并将第二加密信号传送到多个用户设备 。 信号也可以是超加密信号。 也就是说，不是在网关处解密，而是可以再次加密第一加密信号。

公开(公告)号：US07590243B2

公开(公告)日：2009-09-15

申请号：US11119712

申请日：2005-05-02

申请人： Raynold M. Kahn ,  David D. Ha ,  Thomas H. James ,  Peter M. Klauss

发明人： Raynold M. Kahn ,  David D. Ha ,  Thomas H. James ,  Peter M. Klauss

IPC分类号： H04N7/167

CPC分类号： H04N7/1675 ,  H04N7/163 ,  H04N21/2541 ,  H04N21/26606 ,  H04N21/26613 ,  H04N21/4181 ,  H04N21/43615 ,  H04N21/4367 ,  H04N21/4623 ,  H04N21/63345

摘要： A method, apparatus, and article of manufacture provide the ability to process digital media content. A secret key (Ka) is obtained and encrypted into an authorization key message (AKM) message. One or more entitlement keys (Ke) are then obtained and encrypted using the secret key (Ka) as an encryption key into an entitlement management message (EMM). One or more media content encryption keys (Kc) are obtained and encrypted using one or more of the entitlement keys (Ke) as encryption keys into an entitlement control message (ECM). Digital media data content (Dc) is then obtained and encrypted using the one or more media content encryption keys (Kc). The AKM, EMM, ECM, and encrypted digital media data content are then delivered to a set-top box that is configured to provide digital media services with the content.

摘要翻译： 方法，装置和制品提供处理数字媒体内容的能力。 获取密钥（Ka）并将其加密成授权密钥消息（AKM）消息。 然后使用秘密密钥（Ka）作为加密密钥获得并加密一个或多个授权密钥（Ke）到授权管理消息（EMM）中。 使用授权密钥（Ke）中的一个或多个作为加密密钥获得并加密一个或多个媒体内容加密密钥（Kc）到授权控制消息（ECM）中。 然后使用一个或多个媒体内容加密密钥（Kc）获得并加密数字媒体数据内容（Dc）。 然后将AKM，EMM，ECM和加密的数字媒体数据内容传递到被配置为向内容提供数字媒体服务的机顶盒。

公开(公告)号：US20080279386A1

公开(公告)日：2008-11-13

申请号：US12172901

申请日：2008-07-14

申请人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Ronald P. Cocchi ,  Thomas H. James

发明人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Ronald P. Cocchi ,  Thomas H. James

IPC分类号： H04L9/06

CPC分类号： H04N21/2347 ,  A63F2300/407 ,  H04N7/1675 ,  H04N21/4147 ,  H04N21/4367 ,  H04N21/4405 ,  H04N21/835

摘要： A system and method for storing and retrieving program material for subsequent replay is disclosed. The method includes accepting a receiver ID associated with a receiver key stored in a memory of the receiver, determining a pairing key for encrypting communications between the conditional access module and the receiver, encrypting the pairing key with the receiver key, and transmitting a message comprising the encrypted pairing key to the receiver. The apparatus comprises a receiver for receiving a data stream transmitting a media program encrypted according to a media encryption key and an encrypted media encryption key and a conditional access module, communicatively coupleable with the receiver.

摘要翻译： 公开了用于存储和检索用于后续重放的程序材料的系统和方法。 该方法包括接收与存储在接收机的存储器中的接收器密钥相关联的接收机ID，确定用于加密条件访问模块和接收机之间的通信的配对密钥，用接收者密钥加密配对密钥，以及发送包括 加密的配对密钥到接收方。 该装置包括：接收器，用于接收根据媒体加密密钥加密的媒体节目的数据流和加密的媒体加密密钥以及与接收者可通信地耦合的条件访问模块。

公开(公告)号：US07409562B2

公开(公告)日：2008-08-05

申请号：US09960824

申请日：2001-09-21

申请人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Ronald P. Cocchi ,  Thomas H. James

发明人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Ronald P. Cocchi ,  Thomas H. James

IPC分类号： H04L9/08 ,  H04N7/167

CPC分类号： H04N21/2347 ,  A63F2300/407 ,  H04N7/1675 ,  H04N21/4147 ,  H04N21/4367 ,  H04N21/4405 ,  H04N21/835

摘要： A system and method for storing and retrieving program material for subsequent replay is disclosed. The method includes accepting a receiver ID associated with a receiver key stored in a memory of the receiver, determining a pairing key for encrypting communications between the conditional access module and the receiver, encrypting the pairing key with the receiver key, and transmitting a message comprising the encrypted pairing key to the receiver. The apparatus comprises a receiver for receiving a data stream transmitting a media program encrypted according to a media encryption key and an encrypted media encryption key and a conditional access module, communicatively coupleable with the receiver.

摘要翻译： 公开了用于存储和检索用于后续重放的程序材料的系统和方法。 该方法包括接收与存储在接收机的存储器中的接收器密钥相关联的接收机ID，确定用于加密条件访问模块和接收机之间的通信的配对密钥，用接收者密钥加密配对密钥，以及发送包括 加密的配对密钥到接收方。 该装置包括：接收器，用于接收根据媒体加密密钥加密的媒体节目的数据流和加密的媒体加密密钥以及与接收者可通信地耦合的条件访问模块。

公开(公告)号：US08677152B2

公开(公告)日：2014-03-18

申请号：US12172901

申请日：2008-07-14

申请人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Ronald P. Cocchi ,  Thomas H. James

发明人： Raynold M. Kahn ,  Gregory J. Gagnon ,  David D. Ha ,  Peter M. Klauss ,  Christopher P. Curren ,  Ronald P. Cocchi ,  Thomas H. James

IPC分类号： H04L9/28 ,  H04L9/14

CPC分类号： H04N21/2347 ,  A63F2300/407 ,  H04N7/1675 ,  H04N21/4147 ,  H04N21/4367 ,  H04N21/4405 ,  H04N21/835

摘要： A system and method for storing and retrieving program material for subsequent replay is disclosed. The method includes accepting a receiver ID associated with a receiver key stored in a memory of the receiver, determining a pairing key for encrypting communications between the conditional access module and the receiver, encrypting the pairing key with the receiver key, and transmitting a message comprising the encrypted pairing key to the receiver. The apparatus comprises a receiver for receiving a data stream transmitting a media program encrypted according to a media encryption key and an encrypted media encryption key and a conditional access module, communicatively coupleable with the receiver.

摘要翻译： 公开了用于存储和检索用于后续重放的程序材料的系统和方法。 该方法包括接收与存储在接收机的存储器中的接收器密钥相关联的接收机ID，确定用于加密条件访问模块和接收机之间的通信的配对密钥，用接收者密钥加密配对密钥，以及发送包括 加密的配对密钥到接收方。 该装置包括：接收器，用于接收根据媒体加密密钥加密的媒体节目的数据流和加密的媒体加密密钥以及与接收者可通信地耦合的条件访问模块。