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    • 1. 发明申请
    • SUBCHANNEL SECURITY AT THE OPTICAL LAYER
    • 亚光通道安全在光学层
    • WO2011103596A2
    • 2011-08-25
    • PCT/US2011/025767
    • 2011-02-22
    • VELLO SYSTEMS, INC.VORUGANTI, PavanMAY, Karl
    • VORUGANTI, PavanMAY, Karl
    • H04B10/13H04L9/00
    • H04K1/10H04K1/04H04K1/08
    • The present invention includes various novel techniques, apparatus, and systems for optical WDM communications that involve dynamically modifying certain aspects of the WDM transmission (and corresponding receive) process at the optical (physical) layer to significantly enhance data/network security. These various dynamic modifications can be employed individually or in combination to provide even greater security depending upon the desired application and design tradeoffs. WDM transmission steps typically include encoding the client signals, mapping them to one or more subchannels within or across ITU channels, modulating them onto subcarrier frequencies, and multiplexing them together for optical transmission. By dynamically modifying one or more of these processing steps over time (in addition to any encryption of the underlying client signals), the current invention provides additional security at the physical (optical) layer of an optical network and thus greatly enhances overall network security.
    • 本发明包括用于光学WDM通信的各种新颖技术,装置和系统,涉及动态地修改光学(物理)层处的WDM传输(和对应的接收)过程的某些方面以显着增强 数据/网络安全。 根据所需的应用和设计权衡,可以单独或组合使用这些各种动态修改以提供更高的安全性。 WDM传输步骤通常包括编码客户信号,将它们映射到ITU信道内或跨越ITU信道的一个或多个子信道,将它们调制到副载波频率上,并将它们复用在一起用于光传输。 通过随着时间动态地修改这些处理步骤中的一个或多个(除了对底层客户端信号进行任何加密之外),本发明在光网络的物理(光学)层提供额外的安全性并且因此极大地增强了整体网络安全性。
    • 3. 发明申请
    • OPTICAL CDMA SYSTEM USING SUB-BAND CODING
    • 使用子带编码的光CDMA系统
    • WO0007319A2
    • 2000-02-10
    • PCT/US9917259
    • 1999-07-29
    • RDL COMMERCIAL TECHNOLOGIES CO
    • DUTT BIRENDRANARAGHI MANOUHERCHAN JAMES K
    • G02F3/00H04J11/00H04J13/10H04J14/00H04J14/04H04J14/06
    • H04K1/04H04J13/10H04J14/007H04K1/006
    • An optical fiber communications system uses spread spectrum code division multiple access techniques to achieve better bandwidth utilization. A transmitting user in the system encodes the optical signal using a first coding mask, and a receiving user decodes the received signal using two decoding masks, all of the masks having lengths N. The first mask is divided into two sections of lengths N/2 each, one of the sections defining a first sub-code of length N/2, while the other section blocks light. Each of the second and third masks is also divided into two sections, which correspond to the two sections of the first mask. The section of the second mask corresponding to the coded section of the first mask has a second code that is identical to the first code, and the section of the second mask corresponding to the blocked section of the first mask is also blocked. The section of the third mask corresponding to coded section of the first mask has a third code that is complementary to the first code, and the section of the third mask corresponding to the blocked section of the first mask is also blocked. Some users on the system have masks in which the first of the two sections are blocked and the second of the two sections are coded, while other users have masks in which the second of the two sections are blocked and the first of the two sections are coded. The first codes used to code the encoding masks are selected from a set of unipolar codes that are derived from a set of balanced bipolar orthogonal codes.
    • 光纤通信系统使用扩频码分多址技术来实现更好的带宽利用。 系统中的发送用户使用第一编码掩码对光信号进行编码,并且接收用户使用两个解码掩码对所接收的信号进行解码,所有掩码具有长度N.第一掩码被分成长度为N / 2的两个部分 每个部分中的一个限定长度为N / 2的第一子代码,而另一部分阻挡光。 第二和第三掩模中的每一个也被分成两部分,其对应于第一掩模的两个部分。 对应于第一掩模的编码部分的第二掩模的部分具有与第一代码相同的第二代码,并且与第一掩码的被阻止部分相对应的第二掩码的部分也被阻塞。 对应于第一掩模的编码部分的第三掩码的部分具有与第一代码互补的第三代码,并且与第一掩码的被阻止部分对应的第三掩码的部分也被阻塞。 系统中的一些用户具有屏蔽,其中两个部分中的第一部分被阻塞,并且两个部分中的第二部分被编码,而其他用户具有掩蔽,其中两个部分中的第二部分被阻塞,并且两个部分中的第一部分是 编码。 用于对编码掩码进行编码的第一代码是从一组平衡双极正交码导出的一组单极性码中选择的。
    • 7. 发明申请
    • SUBCHANNEL SECURITY AT THE OPTICAL LAYER
    • 光通道上的子通道安全
    • WO2011103596A3
    • 2011-11-24
    • PCT/US2011025767
    • 2011-02-22
    • VELLO SYSTEMS INCVORUGANTI PAVANMAY KARL
    • VORUGANTI PAVANMAY KARL
    • H04B10/2581H04L9/00
    • H04K1/10H04K1/04H04K1/08
    • The present invention includes various novel techniques, apparatus, and systems for optical WDM communications that involve dynamically modifying certain aspects of the WDM transmission (and corresponding receive) process at the optical (physical) layer to significantly enhance data/network security. These various dynamic modifications can be employed individually or in combination to provide even greater security depending upon the desired application and design tradeoffs. WDM transmission steps typically include encoding the client signals, mapping them to one or more subchannels within or across ITU channels, modulating them onto subcarrier frequencies, and multiplexing them together for optical transmission. By dynamically modifying one or more of these processing steps over time (in addition to any encryption of the underlying client signals), the current invention provides additional security at the physical (optical) layer of an optical network and thus greatly enhances overall network security.
    • 本发明包括用于光WDM通信的各种新颖技术,装置和系统,其涉及在光学(物理)层动态地修改WDM传输(和相应的接收)过程的某些方面,以显着增强数据/网络安全性。 这些各种动态修改可以单独地或组合地使用,以根据期望的应用和设计权衡来提供更大的安全性。 WDM传输步骤通常包括对客户端信号进行编码,将它们映射到ITU信道内或跨越ITU信道的一个或多个子信道,将它们调制到子载波频率上,并将它们多路复用在一起用于光传输。 通过随时间动态地修改这些处理步骤中的一个或多个(除了底层客户端信号的任何加密之外),本发明在光网络的物理(光)层提供额外的安全性,从而大大增强了整体网络的安全性。