公开(公告)号：US20090125545A1

公开(公告)日：2009-05-14

申请号：US12167392

申请日：2008-07-03

申请人： Han-Seung KOO ,  Yun-Jeong SONG ,  Soo-In LEE

发明人： Han-Seung KOO ,  Yun-Jeong SONG ,  Soo-In LEE

IPC分类号： G06F7/00 ,  G06F17/30

CPC分类号： G06F21/6218 ,  G06F21/604 ,  G06F2221/2117 ,  G06F2221/2141 ,  G06F2221/2145 ,  H04L9/0836 ,  H04L9/0891 ,  H04L63/065 ,  H04L65/4076

摘要： Provided is a method for constructing a key graph for multi-group multi-casting service and managing a key. The method includes: searching for a user group set (common group set) having the same access right to each resource combination comprising multiple resource selected from resources for a service and non-overlapping with other resource combinations by using an access right relations between user groups and the resource; and constructing a key graph by interconnecting a user group key and a resource key using the access right relation, where user groups pertaining to the searched common group set are connected to corresponding resources via intermediate nodes.

摘要翻译： 提供了一种用于构建多组多播服务和管理密钥的关键图的方法。 该方法包括：通过使用用户组之间的访问权限关联，搜索具有与每个资源组合相同的访问权限的用户组集合（公共组集合），其包括从用于服务的资源选择的多个资源，并且与其他资源组合不重叠 和资源; 以及通过使用访问权限关联来互连用户组密钥和资源密钥来构建密钥图，其中属于所搜索的公共组集合的用户组经由中间节点连接到对应的资源。

公开(公告)号：US20090109997A1

公开(公告)日：2009-04-30

申请号：US12237528

申请日：2008-09-25

申请人： Han-Seung KOO ,  Yang-Su KIM ,  Doh-Wook KIM ,  Yun-Jeong SONG ,  Soo-In LEE

发明人： Han-Seung KOO ,  Yang-Su KIM ,  Doh-Wook KIM ,  Yun-Jeong SONG ,  Soo-In LEE

IPC分类号： H04J99/00

CPC分类号： H04N21/4382 ,  H04L12/2801 ,  H04N7/104 ,  H04N21/2383 ,  H04N21/438 ,  H04N21/6118 ,  H04N21/64784

摘要： Provided is a channel bonding receiving apparatus and method for expanding a channel bonding receiving band in a cable modem. The channel bonding receiving apparatus includes a channel bonding dividing unit for dividing a channel bonding broadband signal into a plurality of band signals and extracting a corresponding channel bonding signal from each of the divided band signals; and a channel routing unit for routing each of the extracted channel bonding signals to a corresponding demodulator.

摘要翻译： 提供一种用于扩展电缆调制解调器中的信道绑定接收频带的信道绑定接收装置和方法。 信道绑定接收装置包括：信道绑定分割单元，用于将信道绑定宽带信号划分成多个频带信号，并从每个分频带信号中提取相应的信道绑定信号; 以及信道路由单元，用于将所提取的信道绑定信号中的每一个路由到相应的解调器。

公开(公告)号：US20110247032A1

公开(公告)日：2011-10-06

申请号：US13077470

申请日：2011-03-31

申请人： Han-Seung KOO ,  O-Hyung KWON ,  Dong-Joon CHOI ,  Soo-In LEE

发明人： Han-Seung KOO ,  O-Hyung KWON ,  Dong-Joon CHOI ,  Soo-In LEE

IPC分类号： H04N7/16

CPC分类号： H04N7/1675 ,  H04N21/23617 ,  H04N21/4181 ,  H04N21/4383 ,  H04N21/4433 ,  H04N21/4627 ,  H04N21/8193

摘要： A method for installing different security clients for channels in a terminal in a conditional access system includes: searching one or more channels searchable in the terminal; requesting, for respective searched channels, security clients necessary for receiving pay programs to be transmitted through the searched channels, to a broadcasting station which takes charge of the searched channels; and downloading and installing, for respective searched channels, the requested security clients from the broadcasting station.

摘要翻译： 一种用于在条件访问系统中的终端中安装用于信道的不同安全客户端的方法包括：搜索终端中可搜索的一个或多个信道; 向相应搜索的频道请求用于接收通过所搜索的频道发送的付费节目所需的安全客户机，向负责搜索的频道的广播电台请求; 并且从各广播台下载和安装所请求的安全客户端。