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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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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。
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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。
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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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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：US08548166B2
公开(公告)日：2013-10-01
申请号：US10602986
申请日：2003-06-25
CPC分类号： H04H60/23 , H04H20/78 , H04H60/15 , H04L63/0428 , H04L63/104 , H04L2463/101 , H04N7/162 , H04N7/1675 , H04N21/23476 , H04N21/44055 , H04N21/472
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 partially-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.
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公开(公告)号：US08542830B2
公开(公告)日：2013-09-24
申请号：US10602988
申请日：2003-06-25
CPC分类号： H04L63/04 , H04J2203/008 , H04L63/0428 , H04L63/0442 , H04L63/045 , H04L63/062 , H04L63/08 , 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 set top units for receiving the instances and selectively decrypting the instances for display to system subscribers. The service instances are partially-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。 有线电视系统包括广播服务“实例”或节目的前台，以及用于接收实例的多个机顶单元，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/或私钥进行部分加密。 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。
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8.发明授权公开(公告)号：US06526508B2
公开(公告)日：2003-02-25
申请号：US09748313
申请日：2000-12-26
申请人： Glendon L. Akins, III , Robert O. Banker , Michael S. Palgon , Howard G. Pinder , Anthony J. Wasilewski
发明人： Glendon L. Akins, III , Robert O. Banker , Michael S. Palgon , Howard G. Pinder , Anthony J. Wasilewski
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 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。
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公开(公告)号：US06252964B1
公开(公告)日：2001-06-26
申请号：US09488230
申请日：2000-01-20
IPC分类号： H04L908
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。
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公开(公告)号：US07861082B2
公开(公告)日：2010-12-28
申请号：US10873805
申请日：2004-06-22
IPC分类号： H04L9/32
CPC分类号： H04N7/1675 , H04L12/2803 , H04N7/162 , H04N7/163 , H04N21/2347 , H04N21/25816 , H04N21/26606 , H04N21/4147 , H04N21/42684 , H04N21/43615 , H04N21/43637 , H04N21/4367 , H04N21/4405 , H04N21/4408 , H04N21/4623 , H04N21/472 , H04N21/47815 , H04N21/482 , H04N21/63345 , H04N21/8586
摘要： In a subscriber television system having a headend, a server, and plurality of client-receivers, the server, which is remote from the headend, is adapted to receive a validation-message from one or more client-receivers. The validation-message includes content and an authentication-token. The server validates that the sender of the validation-message is a valid client-receiver of the subscriber television system using an authentication-token and a validator that is known to both the server and to at least one of the client-receivers.
摘要翻译： 在具有头端，服务器和多个客户机 - 接收机的用户电视系统中，远离头端的服务器适于从一个或多个客户机 - 接收机接收验证消息。 验证消息包括内容和认证令牌。 服务器验证验证消息的发送者是用户电视系统的有效的客户机 - 接收者，其使用认证令牌和验证器，该服务器和服务器以及至少一个客户机 - 接收器都是已知的。
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