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公开(公告)号：US08705417B2
公开(公告)日：2014-04-22
申请号：US12830585
申请日：2010-07-06
IPC分类号： H04L5/00
CPC分类号： H04M7/1215 , H04L12/10 , H04L12/2836 , H04L12/2838 , H04L12/66
摘要： A network gateway function that is provided at a coaxial tap of a hybrid-fiber coaxial broadband network that feeds a customer location. A Data Over Cable Service Interface Specification (DOCSIS) modem may be embedded in the tap wherein the DOCSIS protocol is terminated. A network functionality such as firewall and network address translation is provided at a network termination point that may use Multimedia over Coax (MoCA) or other similar technology using an existing coaxial cable drop to a customer location that effectively extends a home network to the tap.
摘要翻译： 提供在馈送客户位置的混合光纤同轴宽带网络的同轴抽头处的网络网关功能。 数据有线服务接口规范（DOCSIS）调制解调器可以嵌入在其中终止DOCSIS协议的分接头中。 在可以使用多媒体同轴（MoCA）或其他类似技术的网络终端点提供诸如防火墙和网络地址转换之类的网络功能，其使用现有的同轴电缆降落到有效地将家庭网络扩展到抽头的客户位置。
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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。
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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。
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4.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。
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公开(公告)号：US07532673B2
公开(公告)日：2009-05-12
申请号：US10768355
申请日：2004-01-30
IPC分类号： H04L27/36
CPC分类号： H04L27/36
摘要： A broadband communications system uses modulation symbol transport over communications links to replace baseband or bandpass signal transport, thereby providing longer communication distances, lower communication link bandwidth, and greater signal quality. Subsequent to transporting the modulation symbols, the symbols are modulated and further transmitted over the RF transmission network.
摘要翻译： 宽带通信系统通过通信链路使用调制符号传输来代替基带或带通信号传输，从而提供较长的通信距离，较低的通信链路带宽和更大的信号质量。 在传送调制符号之后，对符号进行调制并进一步通过RF传输网络进行传输。
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公开(公告)号：US07496198B2
公开(公告)日：2009-02-24
申请号：US11275051
申请日：2005-12-06
CPC分类号： H04N21/435 , H04J2203/008 , H04L63/0428 , H04L63/062 , H04L2463/101 , H04N5/4401 , H04N7/162 , H04N7/163 , H04N7/1675 , H04N7/17354 , H04N21/2265 , H04N21/23476 , H04N21/235 , H04N21/2362 , H04N21/23897 , H04N21/26606 , H04N21/43607 , H04N21/4405 , H04N21/44055 , H04N21/4524 , H04N21/63345
摘要： The present invention is suitable for use in a partial dual encrypted system. The present invention allows for two different decryption devices (e.g., an incumbent, or first, set-top and an overlay, or second, set-top) to be located in a single system having an incumbent encryption scheme and a second encryption scheme. Each set-top is designed to decrypt the first or second proprietary encryption schemes, respectively. In accordance with the present invention, the second set-top utilizes a novel program map table to ensure that the second set-top chooses correct elementary streams in the partial dual-encrypted stream (i.e., a combined stream including a first encrypted stream, a second encrypted stream, and a clear stream) for a desired program.
摘要翻译： 本发明适用于部分双重加密系统。 本发明允许将两个不同的解密装置（例如，现有的，或第一，机顶，覆盖或第二机顶）位于具有现任加密方案和第二加密方案的单个系统中。 每个机顶盒分别设计用于解密第一或第二专有加密方案。 根据本发明，第二机顶盒利用新颖的程序映射表来确保第二机顶盒在部分双加密流中选择正确的基本流（即，组合流包括第一加密流， 第二加密流和清除流）。
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公开(公告)号：US20110002245A1
公开(公告)日：2011-01-06
申请号：US12830585
申请日：2010-07-06
CPC分类号： H04M7/1215 , H04L12/10 , H04L12/2836 , H04L12/2838 , H04L12/66
摘要： A network gateway function that is provided at a coaxial tap of a hybrid-fiber coaxial broadband network that feeds a customer location. A Data Over Cable Service Interface Specification (DOCSIS) modem may be embedded in the tap wherein the DOCSIS protocol is terminated. A network functionality such as firewall and network address translation is provided at a network termination point that may use Multimedia over Coax (MoCA) or other similar technology using an existing coaxial cable drop to a customer location that effectively extends a home network to the tap.
摘要翻译： 提供在馈送客户位置的混合光纤同轴宽带网络的同轴抽头处的网络网关功能。 数据有线服务接口规范（DOCSIS）调制解调器可以嵌入在其中终止DOCSIS协议的分接头中。 在可以使用多媒体同轴（MoCA）或其他类似技术的网络终端点提供诸如防火墙和网络地址转换之类的网络功能，其使用现有的同轴电缆降落到有效地将家庭网络扩展到抽头的客户位置。
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公开(公告)号：US20090147954A1
公开(公告)日：2009-06-11
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; 以及创建用于相同程序的程序映射表，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。
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9.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。
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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。
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