-
公开(公告)号：US08396216B2
公开(公告)日：2013-03-12
申请号：US12352712
申请日：2009-01-13
CPC分类号： H04N7/163 , H04N7/1675 , H04N21/23476 , H04N21/2362 , H04N21/43607 , H04N21/44055
摘要： Systems and method for partial encryption are disclosed. One example method comprises: creating a program association table to include a first program number which identifies a program encrypted in accordance with a first encryption scheme, and a second program number which identifies the same program encrypted in accordance with a second encryption scheme; and creating a program map table for the same program to include first audio and video identifiers associated with the first encryption scheme and second audio and video identifiers associated with the second encryption scheme.
摘要翻译： 公开了用于部分加密的系统和方法。 一个示例性方法包括：创建程序关联表以包括标识根据第一加密方案加密的程序的第一程序号和标识根据第二加密方案加密的相同程序的第二程序号; 以及创建用于相同节目的节目映射表，以包括与第一加密方案相关联的第一音频和视频标识符以及与第二加密方案相关联的第二音频和视频标识符。
-
2.发明授权Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system 有权用于在条件访问覆盖系统中提供部分双加密流的方法和装置公开(公告)号：US07805399B2
公开(公告)日：2010-09-28
申请号：US11739161
申请日：2007-04-24
IPC分类号： G06F17/00
CPC分类号： H04N7/1675 , H04J2203/008 , H04L63/0428 , H04L63/0478 , H04L2463/101 , H04N5/4401 , H04N7/162 , H04N7/163 , H04N7/17354 , H04N21/2265 , H04N21/2347 , H04N21/23476 , H04N21/23608 , H04N21/23897 , H04N21/26606 , H04N21/43607 , H04N21/4405 , H04N21/4524 , H04N21/63345
摘要： The present invention is directed towards providing a partial dual-encrypted stream in a conditional access overlay system. The headend equipment includes an aligner, identifier, and remapper (AIR) device (615) that receives a clear stream and one or two encrypted streams, where the two encrypted streams have been encrypted by two different encryption schemes. The AIR device (615) identifies critical packets associated with the clear stream and subsequently allows two encrypted streams to pass and drops the critical packets of the clear stream. A multiplexer (640) then combines a percentage of the non-critical packets of the clear stream and the critical packets of the two encrypted streams to provide the partial dual-encrypted stream.
摘要翻译： 本发明旨在在条件访问覆盖系统中提供部分双加密流。 前端设备包括对准器，标识符和再映射器（AIR）设备（615），其接收清除流和一个或两个加密流，其中两个加密流已经被两种不同的加密方案加密。 AIR设备（615）识别与清除流相关联的关键分组，并且随后允许两个加密流传递和丢弃清除流的关键分组。 然后，多路复用器（640）组合清除流的非关键分组的百分比和两个加密流的关键分组以提供部分双加密流。
-
3.发明授权Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system 有权用于在条件访问覆盖系统中提供部分双加密流的方法和装置公开(公告)号：US07224798B2
公开(公告)日：2007-05-29
申请号：US10629839
申请日：2003-07-30
CPC分类号： H04N7/1675 , H04J2203/008 , H04L63/0428 , H04L63/0478 , H04L2463/101 , H04N5/4401 , H04N7/162 , H04N7/163 , H04N7/17354 , H04N21/2265 , H04N21/2347 , H04N21/23476 , H04N21/23608 , H04N21/23897 , H04N21/26606 , H04N21/43607 , H04N21/4405 , H04N21/4524 , H04N21/63345
摘要： The present invention is directed towards providing a partial dual-encrypted stream in a conditional access overlay system. The headend equipment includes an aligner, identifier, and remapper (AIR) device (615) that receives a clear stream and one or two encrypted streams, where the two encrypted streams have been encrypted by two different encryption schemes. The AIR device (615) identifies critical packets associated with the clear stream and subsequently allows two encrypted streams to pass and drops the critical packets of the clear stream. A multiplexer (640) then combines a percentage of the non-critical packets of the clear stream and the critical packets of the two encrypted streams to provide the partial dual-encrypted stream.
摘要翻译： 本发明旨在在条件访问覆盖系统中提供部分双加密流。 前端设备包括对准器，标识符和再映射器（AIR）设备（615），其接收清除流和一个或两个加密流，其中两个加密流已经被两种不同的加密方案加密。 AIR设备（615）识别与清除流相关联的关键分组，并且随后允许两个加密流传递和丢弃清除流的关键分组。 然后，多路复用器（640）组合清除流的非关键分组的百分比和两个加密流的关键分组以提供部分双加密流。
-
公开(公告)号：US07395346B2
公开(公告)日：2008-07-01
申请号：US10420645
申请日：2003-04-22
IPC分类号： G06F15/16
CPC分类号： H04L67/2823 , H04L65/604 , H04L67/2828 , H04L67/303 , H04L69/08 , H04L69/329 , H04N7/17336 , H04N21/23805 , H04N21/47202 , H04N21/64322 , H04N21/64738 , H04N21/64792
摘要： A device in a subscriber television system receives a stream of frames of information, and each frame of information is carried in at least one network packet that is formatted according to a first protocol. Each network packet carries an application packet that is formatted according to a second protocol, which is a protocol for an application. The device includes application awareness that enables the device to selectively modify the application packets.
摘要翻译： 用户电视系统中的设备接收信息帧流，并且每个帧信息在至少一个根据第一协议格式化的网络分组中传送。 每个网络分组携带根据作为应用的协议的第二协议格式化的应用分组。 该设备包括应用程序意识，使设备能够选择性地修改应用程序包。
-
公开(公告)号：US07397825B2
公开(公告)日：2008-07-08
申请号：US10797227
申请日：2004-03-10
IPC分类号： H04J3/06
CPC分类号： H04J3/0632 , H04N21/23608 , H04N21/242 , H04N21/4305 , H04N21/4344
摘要： A transport stream transmitter receives a jittered stream of network frames carrying a stream of transport packets. The transport stream transmitter de-encapsulates the stream of transport packets from the network frames and dejitters and transmits the stream of network frames.
摘要翻译： 传输流发射器接收携带传输分组流的网络帧的抖动流。 传输流发射机对来自网络帧和去抖动的传输分组流进行解封装并传输网络帧流。
-
6.发明授权Apparatus for entitling and transmitting service instances to remote client devices 有权用于向远程客户端设备授权和传送业务实例的设备公开(公告)号：US07860250B2
公开(公告)日：2010-12-28
申请号：US12327157
申请日：2008-12-03
IPC分类号： H04N7/167
CPC分类号： H04N21/42684 , H04L12/2803 , H04L12/2805 , H04N7/162 , H04N7/163 , H04N7/1675 , H04N21/234309 , H04N21/2347 , H04N21/23608 , H04N21/4126 , H04N21/4344 , H04N21/43615 , H04N21/43637 , H04N21/4367 , H04N21/4405 , H04N21/4408 , H04N21/4623 , H04N21/472 , H04N21/47815 , H04N21/482 , H04N21/8586
摘要： A server in a subscriber television network receives service instances from a headend of the subscriber television network. The server is adapted to encrypt according to an encryption scheme and re-transmit service instances to a client-receiver. The server reformats the service instance from a first format into a second format the client-receiver can access the service instance.
摘要翻译： 用户电视网络中的服务器从用户电视网络的前端接收服务实例。 服务器适于根据加密方案进行加密，并将服务实例重新发送到客户机 - 接收机。 服务器将服务实例从第一格式重新格式化为第二格式，客户端 - 接收方可以访问服务实例。
-
7.发明授权Apparatus for entitling and transmitting service instances to remote client devices 有权用于向远程客户端设备授权和传送业务实例的设备公开(公告)号：US07505592B2
公开(公告)日：2009-03-17
申请号：US11671506
申请日：2007-02-06
IPC分类号： H04N7/167
CPC分类号： H04N21/42684 , H04L12/2803 , H04L12/2805 , H04N7/162 , H04N7/163 , H04N7/1675 , H04N21/234309 , H04N21/2347 , H04N21/23608 , H04N21/4126 , H04N21/4344 , H04N21/43615 , H04N21/43637 , H04N21/4367 , H04N21/4405 , H04N21/4408 , H04N21/4623 , H04N21/472 , H04N21/47815 , H04N21/482 , H04N21/8586
摘要： A server in a subscriber television network receives service instances from a headend of the subscriber television network. The server is adapted to encrypt according to an encryption scheme and re-transmit service instances to a client-receiver. The server reformats the service instance from a first format into a second format the client-receiver can access the service instance.
摘要翻译： 用户电视网络中的服务器从用户电视网络的前端接收服务实例。 服务器适于根据加密方案进行加密，并将服务实例重新发送到客户机 - 接收机。 服务器将服务实例从第一格式重新格式化为第二格式，客户端 - 接收方可以访问服务实例。
-
8.发明申请Apparatus for Entitling and Transmitting Service Instances to Remote Client Devices 有权用于向远程客户端设备授权和发送服务实例的设备公开(公告)号：US20090089369A1
公开(公告)日：2009-04-02
申请号：US12327157
申请日：2008-12-03
IPC分类号： G06F15/16
CPC分类号： H04N21/42684 , H04L12/2803 , H04L12/2805 , H04N7/162 , H04N7/163 , H04N7/1675 , H04N21/234309 , H04N21/2347 , H04N21/23608 , H04N21/4126 , H04N21/4344 , H04N21/43615 , H04N21/43637 , H04N21/4367 , H04N21/4405 , H04N21/4408 , H04N21/4623 , H04N21/472 , H04N21/47815 , H04N21/482 , H04N21/8586
摘要： A server in a subscriber television network receives service instances from a headend of the subscriber television network. The server is adapted to encrypt according to an encryption scheme and re-transmit service instances to a client-receiver. The server reformats the service instance from a first format into a second format the client-receiver can access the service instance.
摘要翻译： 用户电视网络中的服务器从用户电视网络的前端接收服务实例。 服务器适于根据加密方案进行加密，并将服务实例重新发送到客户机 - 接收机。 服务器将服务实例从第一格式重新格式化为第二格式，客户端 - 接收方可以访问服务实例。
-
公开(公告)号：US06971008B2
公开(公告)日：2005-11-29
申请号：US10287913
申请日：2002-11-05
CPC分类号： H04L63/04 , H04J2203/008 , H04L63/0428 , H04L63/0442 , H04L63/045 , H04L63/062 , H04L63/08 , H04L63/0823 , H04L63/12 , H04L63/123 , H04L2463/101 , H04N5/4401 , H04N7/162 , H04N7/163 , H04N7/1675 , H04N7/17354 , H04N21/2265 , H04N21/23476 , H04N21/26606 , H04N21/4405 , H04N21/4524 , H04N21/63345
摘要： A cable television system provides conditional access to services. The cable television system includes a headend from which service “instances”, or programs, are broadcast and a plurality of set top units for receiving the instances and selectively decrypting the instances for display to system subscribers. The service instances are encrypted using public and/or private keys provided by service providers or central authorization agents. Keys used by the set tops for selective decryption may also be public or private in nature, and such keys may be reassigned at different times to provide a cable television system in which piracy concerns are minimized.
摘要翻译： 有线电视系统提供条件访问服务。 有线电视系统包括一个头端，从其中广播服务“实例”或程序，以及多个机顶单元，用于接收实例，并选择性地解密实例以供系统用户显示。 服务实例使用由服务提供商或中央授权代理提供的公共和/或私钥进行加密。 用于选择性解密的设置顶部使用的密钥也可以是公共的或私有的，并且可以在不同的时间重新分配这些密钥，以提供最小化盗版问题的有线电视系统。
-
公开(公告)号：US06510519B2
公开(公告)日：2003-01-21
申请号：US09881428
申请日：2001-06-14
IPC分类号： H04L900
CPC分类号： H04L63/04 , H04J2203/008 , H04L63/0428 , H04L63/0442 , H04L63/045 , H04L63/062 , H04L63/0823 , H04L63/12 , H04L63/123 , H04L63/126 , H04L2463/101 , H04N5/4401 , H04N7/162 , H04N7/163 , H04N7/1675 , H04N7/17354 , H04N21/2265 , H04N21/23476 , H04N21/26606 , H04N21/4405 , H04N21/4524 , H04N21/63345
摘要： A cable television system provides conditional access to services. The cable television system includes a headend from which service “instances”, or programs, are broadcast and a plurality of step top units for receiving the instances and selectively decrypting the instances for display to system subscribers. The service instances are encrypted using public and/or private keys provided by service providers or central authorization agents. Keys used by the set tops for selective decryption may also be public or private in nature, and such keys may be reassigned at different times to provide a cable television system in which piracy concerns are minimized.
摘要翻译： 有线电视系统提供条件访问服务。 有线电视系统包括一个前端，从其中广播服务“实例”或程序，以及多个步骤顶部单元，用于接收实例并选择性地解密实例以供系统用户显示。 服务实例使用由服务提供商或中央授权代理提供的公共和/或私钥进行加密。 用于选择性解密的设置顶部使用的密钥也可以是公共的或私有的，并且可以在不同的时间重新分配这些密钥，以提供最小化盗版问题的有线电视系统。
-
-
-
-
-
-
-
-
-
搜索结果
49 条记录 (耗时 0.036 秒)
