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公开(公告)号：US06868519B2
公开(公告)日：2005-03-15
申请号：US09839486
申请日：2001-04-23
IPC分类号： G06F11/10 , G06F12/02 , H03M13/15 , H03M13/27 , H04B10/10 , H04L1/00 , H03M13/00 , G06F11/00 , H03M13/03
CPC分类号： H04L1/0057 , H03M13/15 , H03M13/27 , H04B10/11 , H04L1/0071
摘要： A process and apparatus is described for recovering from optical transmission degradation due to scintillation effects in optical free space. A payload bit stream is encoded into Reed-Solomon codewords. These are fragmented and distributed as interleaved segments over a cell matrix of a SDRAM buffer store which is made large enough to correct a burst error occurring over 20 million consecutive bits. The rate imbalance between conventional read vs. write operations for SDRAM devices, which would otherwise obviate their use in this application by preventing real time operation, is overcome by an address remapping that avoids having to changing page addresses each time SDRAM memory is referenced. The remapping facilitates a more nearly equal allocation of READ overhead and WRITE overhead. An optical communications system employs at both the transmit and receive ends, substantially equivalent SDRAM buffer with address remapping capability.
摘要翻译： 描述了由于光学自由空间中的闪烁效应而从光传输劣化中恢复的过程和装置。 有效载荷比特流被编码为Reed-Solomon码字。 它们被分段并分布成SDRAM缓冲存储器的单元矩阵上的交错分段，其被制成足够大以校正在2000万连续位上发生的突发错误。 通过地址重映射来克服SDRAM器件的常规读/写操作之间的速率不平衡，通过地址重映射，每当SDRAM存储器被引用时，地址重映射避免了改变页地址，从而克服了在SDRAM应用中通过防止实时操作来消除它们的使用。 重新映射有助于读取开销和写入开销更接近于相等的分配。 光通信系统在发射和接收端都采用基本上等效的具有地址重映射能力的SDRAM缓冲器。
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公开(公告)号：USD365808S
公开(公告)日：1996-01-02
申请号：US26211
申请日：1994-07-21
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公开(公告)号：USD363731S
公开(公告)日：1995-10-31
申请号：US26157
申请日：1994-07-21
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4.发明授权公开(公告)号：US08086103B2
公开(公告)日：2011-12-27
申请号：US10835086
申请日：2004-04-29
CPC分类号： H04Q11/0062 , H04Q2011/0064 , H04Q2011/0075
摘要： Dynamic optical wavebands are disclosed that allow a plurality of user streams having a common destination node to be positioned in a substantially adjacent non-overlapping manner on a spectrum for treatment as a routable entity. Each waveband has an associated center wavelength and spectral extent. The plurality of user streams can optionally be encrypted using a corresponding cipher. Wavebands that are received by a network node are filtered so that individual wavebands can be isolated, if necessary. For example, individual wavebands can be switched to an appropriate output node for forwarding in the optical network. In addition, the center wavelength and spectral extent of a waveband can be converted, if necessary, to position the waveband substantially spectrally adjacent to another waveband sharing a common path portion. In this manner, the substantially spectrally adjacent wavebands can be treated as an aggregated waveband for the common portion of a path. The disclosed wavebands can be processed only as an optical signal. The center wavelength, spectral extent and routing information associated with each waveband can optionally be processed as out-of-band signals.
摘要翻译： 公开了允许具有公共目的地节点的多个用户流以基本上相邻的非重叠方式定位在用于作为可路由实体进行治疗的频谱上的动态光波段。 每个波段具有相关联的中心波长和光谱范围。 可以可选地使用相应的密码来加密多个用户流。 如果需要，由网络节点接收的波段被滤波，以便各个波段可被隔离。 例如，可以将各个波段切换到适当的输出节点，以在光网络中转发。 此外，如果需要，可以转换波段的中心波长和频谱范围，以使波段基本上与共享公共路径部分的另一个波段频谱相邻。 以这种方式，基本上光谱相邻的波段可以被视为路径的公共部分的聚集波段。 所公开的波段只能作为光信号进行处理。 与每个波段相关联的中心波长，频谱范围和路由信息可以可选地被处理为带外信号。
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5.发明授权Method and apparatus for temporally shifting one or more packets using wavelength selective delays 有权用于使用波长选择性延迟暂时移位一个或多个分组的方法和装置公开(公告)号：US07206509B2
公开(公告)日：2007-04-17
申请号：US10306934
申请日：2002-11-29
申请人： Marc J. Beacken
发明人： Marc J. Beacken
IPC分类号： H04J14/00
CPC分类号： G02B6/12019 , H04Q11/0005 , H04Q2011/0011 , H04Q2011/002
摘要： A method and apparatus are disclosed for temporally shifting one or more packets using wavelength selective delays. The header information associated with each packet, together with a routing algorithm, routing topology information and internal OPTR state, is used to route each packet to the appropriate destination channel and to make timing decisions. A wavelength server generates optical control wavelengths in response to the timing decisions. A generated optical control wavelength is used to adjust the wavelength of a given packet tray and thereby introduce a wavelength selective delay to the packet tray to align packet trays or to shift one or more packet trays to avoid a collision. The wavelength of the packet tray is converted to a control wavelength corresponding to an identified delay, irrespective of the initial channel upon which the packet tray was received. At the output stage of the packet tray router, the packet tray wavelength can be converted to any desired output channel wavelength.
摘要翻译： 公开了一种用于使用波长选择性延迟暂时移位一个或多个分组的方法和装置。 使用与每个分组相关联的报头信息，以及路由算法，路由拓扑信息和内部OPTR状态，将每个分组路由到适当的目的地信道并做出时序决定。 波长服务器响应于定时决定产生光学控制波长。 生成的光学控制波长用于调节给定分组托盘的波长，从而向分组托盘引入波长选择性延迟以对齐分组托盘或移动一个或多个分组托盘以避免碰撞。 分组托盘的波长被转换成对应于所识别的延迟的控制波长，而不管接收到分组托盘的初始信道。 在分组托盘路由器的输出阶段，分组托盘波长可以转换为任何所需的输出通道波长。
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公开(公告)号：US07764882B2
公开(公告)日：2010-07-27
申请号：US10306935
申请日：2002-11-29
申请人： Marc J. Beacken
发明人： Marc J. Beacken
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04J14/0227 , H04J14/0241 , H04Q11/0066 , H04Q2011/0011
摘要： An optical packet tray router is disclosed that manipulates a signal wavelength as the fundamental control mechanism. The disclosed optical packet tray router aggregates one or more packets in a packet tray for transmission over a network. The header information associated with each packet is used to route each packet to the appropriate destination channel and to make timing decisions. A wavelength server generates optical control wavelengths in response to the timing decisions. A generated optical control wavelength is used to adjust the wavelength of a given packet tray and thereby introduce a wavelength selective delay to the packet tray to align packet trays or to shift one or more packet trays to avoid a collision. The wavelength of the packet tray is converted to a control wavelength corresponding to an identified delay, irrespective of the initial channel upon which the packet tray was received. At the output stage of the packet tray router, the packet tray wavelength can be converted to any desired output channel wavelength.
摘要翻译： 公开了一种操作信号波长作为基本控制机构的光分组托盘路由器。 所公开的光包托盘路由器聚合分组托盘中的一个或多个分组以通过网络进行传输。 与每个分组相关联的报头信息用于将每个分组路由到适当的目的地信道并做出时序决定。 波长服务器响应于定时决定产生光学控制波长。 生成的光学控制波长用于调节给定分组托盘的波长，从而向分组托盘引入波长选择性延迟以对齐分组托盘或移动一个或多个分组托盘以避免碰撞。 分组托盘的波长被转换成对应于所识别的延迟的控制波长，而不管接收到分组托盘的初始信道。 在分组托盘路由器的输出阶段，分组托盘波长可以转换为任何所需的输出通道波长。
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