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公开(公告)号：US06292568B1
公开(公告)日：2001-09-18
申请号：US09487076
申请日：2000-01-19
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： H04N7167
CPC分类号： H04L63/0428 , H04J2203/008 , H04L63/0442 , H04L63/045 , H04L63/062 , H04L63/0823 , H04L63/12 , H04L63/123 , H04L2463/101 , H04N5/4401 , 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：US06937729B2
公开(公告)日：2005-08-30
申请号：US09930901
申请日：2001-08-16
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
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 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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3.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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4.发明授权公开(公告)号：US06246767B1
公开(公告)日：2001-06-12
申请号：US09488104
申请日：2000-01-20
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： H04N7167
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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5.发明授权Verification of the source of program information in a conditional access system 失效验证条件访问系统中程序信息的来源
公开(公告)号：US6105134A
公开(公告)日：2000-08-15
申请号：US126795
申请日：1998-07-31
IPC分类号： H04N7/10 , G09C1/00 , H04L9/08 , H04L29/06 , H04N5/44 , H04N7/16 , H04N7/167 , H04N21/226 , H04N21/266 , H04N21/4405 , H04N21/45 , H04N21/6334 , H04L9/32
CPC分类号： H04L63/04 , H04L63/0428 , H04L63/0442 , H04L63/045 , H04L63/062 , H04L63/0823 , H04N21/2265 , H04N21/26606 , H04N21/4405 , H04N21/4524 , H04N21/63345 , H04N5/4401 , H04N7/162 , H04N7/163 , H04N7/1675
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：US6157719A
公开(公告)日：2000-12-05
申请号：US126921
申请日：1998-07-31
CPC分类号： H04L63/04 , H04L63/0428 , H04L63/0442 , H04L63/045 , H04L63/062 , H04L63/0823 , H04L63/12 , H04L63/123 , H04N21/23476 , H04N21/4524 , H04N7/163 , H04N7/1675 , H04J2203/008 , H04L2463/101
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.
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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。
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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。
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公开(公告)号：US06516412B2
公开(公告)日：2003-02-04
申请号：US09811085
申请日：2001-03-16
IPC分类号： H04N7167
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：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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