公开(公告)号：US20070118770A1

公开(公告)日：2007-05-24

申请号：US11654752

申请日：2007-01-18

申请人： Raynold Kahn ,  Gregory Gagnon ,  David Ha ,  Peter Klauss ,  Christopher Curren ,  Thomas James

发明人： Raynold Kahn ,  Gregory Gagnon ,  David Ha ,  Peter Klauss ,  Christopher Curren ,  Thomas James

IPC分类号： H04L9/32 ,  G06F12/14 ,  G06F17/30 ,  G06F7/04 ,  G06F11/30 ,  G06K9/00 ,  H03M1/68 ,  H04K1/00 ,  H04L9/00 ,  H04N7/16

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：US20070133795A1

公开(公告)日：2007-06-14

申请号：US11701800

申请日：2007-02-02

申请人： Raynold Kahn ,  Gregory Gagnon ,  David Ha ,  Peter Klauss ,  Christopher Curren ,  Thomas James

发明人： Raynold Kahn ,  Gregory Gagnon ,  David Ha ,  Peter Klauss ,  Christopher Curren ,  Thomas James

IPC分类号： H04N7/167

CPC分类号： H04N21/4147 ,  H04N5/76 ,  H04N5/783 ,  H04N7/163 ,  H04N7/1675 ,  H04N7/17327 ,  H04N9/8042 ,  H04N9/8205 ,  H04N21/4331 ,  H04N21/4334 ,  H04N21/4367 ,  H04N21/47202

摘要： A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. The apparatus comprises a tuner, for receiving a data stream comprising encrypted access control information and the program material encrypted according to a first encryption key, the access control information including the first encryption key; a first encryption module, communicatively coupled to the tuner and communicatively coupleable to a media storage device, 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; a first decryption module communicatively coupleable to the media storage device, for decrypting the fourth encryption key retrieved from the media storage device using the third encryption key to produce the second encryption key, and for decrypting the further encrypted program material retrieved from the media program device to produce the encrypted program material; a conditional access module communicatively coupled to the first decryption module, for decrypting the encrypted access control information to produce the first encryption key; and a second decryption module, for decrypting the program material using the first 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。 该装置包括调谐器，用于接收包括加密的访问控制信息的数据流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; 第一加密模块，通信地耦合到调谐器并且可通信地耦合到媒体存储设备，用于根据第二加密密钥进一步加密加密的节目素材，并且根据第三加密密钥加密第二加密密钥以产生第四加密 键; 可通信地耦合到所述媒体存储设备的第一解密模块，用于使用所述第三加密密钥解密从所述媒体存储设备检索的所述第四加密密钥以产生所述第二加密密钥，以及用于解密从所述媒体节目设备检索的所述另外加密的节目素材 生成加密程序素材; 通信地耦合到第一解密模块的条件访问模块，用于解密加密的访问控制信息以产生第一加密密钥; 以及第二解密模块，用于使用所述第一加密密钥对所述程序素材进行解密

公开(公告)号：US20080019529A1

公开(公告)日：2008-01-24

申请号：US10758865

申请日：2004-01-16

申请人： Raynold Kahn ,  Gregory Gagnon ,  Christopher Curren ,  Thomas James

发明人： Raynold Kahn ,  Gregory Gagnon ,  Christopher Curren ,  Thomas James

IPC分类号： H04L9/00

CPC分类号： H04N21/4181 ,  H04N7/163 ,  H04N7/1675 ,  H04N21/43615 ,  H04N21/4367 ,  H04N21/4405 ,  H04N21/4408

摘要： A host receiver and a client receiver are operatively in a direct broadcast satellite system. Program materials received by the host receiver from the direct broadcast satellite system are decrypted by the host receiver. The decrypted program materials are then encrypted at the host receiver using a copy protection key. The copy protection key is encrypted at the host receiver using a host-client pairing key shared between the host receiver and client receiver. The encrypted program materials and the encrypted copy protection key are transferred from the host receiver to the client receiver. The transferred copy protection key is decrypted at the client receiver using the host-client pairing key. The transferred program materials are then decrypted at the client receiver using the decrypted copy protection key.

摘要翻译： 主机接收机和客户机接收机可操作地在直接广播卫星系统中。 由主机接收机从直播广播卫星系统接收的节目材料由主机接收机解密。 然后使用复制保护密钥在主机接收机上对解密的程序资料进行加密。 复制保护密钥在主机接收机处使用在主机接收机和客户端接收机之间共享的主机 - 客户端配对密钥进行加密。 加密的程序材料和加密的复制保护密钥从主机接收机传送到客户机接收机。 传输的复制保护密钥使用主机 - 客户端配对密钥在客户端接收机处解密。 然后使用解密的复制保护密钥在客户端接收机处解密传送的节目素材。

公开(公告)号：US20070242825A1

公开(公告)日：2007-10-18

申请号：US10758811

申请日：2004-01-16

申请人： Raynold Kahn ,  Gregory Gagnon ,  Christopher Curren ,  Thomas James

发明人： Raynold Kahn ,  Gregory Gagnon ,  Christopher Curren ,  Thomas James

IPC分类号： H04N7/167

CPC分类号： H04N7/1675 ,  H04N21/26606 ,  H04N21/26613 ,  H04N21/43615 ,  H04N21/4367 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/4623 ,  H04N21/63345

摘要： A method and apparatus for distributing video content from a direct broadcast satellite system between a host receiver and a client receiver. A family pairing key is transmitted from the direct broadcast satellite system to both the host and client receivers. The family pairing key received by the host and client receivers is decrypted using receiver keys uniquely associated with the host and client receivers, respectively. Decrypted program materials are then encrypted at the host receiver using a copy protection key generated by the host receiver using content information decrypted by the family pairing key. The encrypted program materials are transferred from the host receiver to the client receiver. The encrypted program materials are decrypted at the client receiver using the copy protection key. Like the host receiver, the copy protection key is generated by the client receiver using content information decrypted by the family pairing key.

摘要翻译： 一种用于在主机接收机和客户端接收机之间从直接广播卫星系统分发视频内容的方法和装置。 家庭配对密钥从直接广播卫星系统发送到主机和客户端接收机。 由主机和客户机接收机接收的家庭配对密钥分别使用与主机和客户机接收机唯一相关联的接收机密钥进行解密。 然后使用由家庭配对密钥解密的内容信息，使用由主机接收机产生的复制保护密钥在主机接收机处加密解密的节目材料。 加密的程序材料从主机接收器传送到客户端接收器。 使用复制保护密钥在加密程序资料在客户接收机处解密。 像主机接收机一样，由家庭配对密钥解密的内容信息由客户接收机生成复制保护密钥。