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1. 发明授权

US06961522B1 Automatic raman gain and tilt control for ultra-long-distance dense WDM optical communication system 失效
标题翻译：超长距离密集WDM光通信系统的自动拉曼增益和倾斜控制
公开(公告)号：US06961522B1
公开(公告)日：2005-11-01
申请号：US09717036
申请日：2000-11-22
申请人： Roberta Castagnetti , Fabrizio Di Pasquale , Giorgio Grasso , Fausto Meli , Giovanni Sacchi
发明人： Roberta Castagnetti , Fabrizio Di Pasquale , Giorgio Grasso , Fausto Meli , Giovanni Sacchi
IPC分类号： H04B10/00 , H04B10/17 , H04J14/02
CPC分类号： H04B10/2931 , H04B10/2916 , H04J14/0221
摘要： An approach for automatic Raman gain and tilt control for a WDM (Wavelength Division Multiplexing) optical communication systems is disclosed. An optical fiber carries a plurality of optical signals, in which at least one of the optical signals are reference signals. An optical gain unit (e.g., Raman pump unit) couples to the optical fiber and adjusts the reference signals to compensate, in part, for losses associated with the optical fiber and gain tilt accumulation. Upon detecting and analyzing the reference signals, a controller controls the optical gain unit and outputs a control signal to the optical gain unit based upon the analyzed reference signals. An optical amplifier is connected to the optical fiber and amplifies the optical signals. The optical gain unit provides a nearly constant power per channel at an input of the optical amplifier. Under this approach, a Raman gain control mechanism, combined with the use of gain controlled EDFA (Erbium Doped Fiber Amplifier), allows high transmission capacity over ultra-long distances without optical regeneration and with high flexibility.
摘要翻译：公开了一种用于WDM（波分复用）光通信系统的自动拉曼增益和倾斜控制的方法。光纤携带多个光信号，其中至少一个光信号是参考信号。光增益单元（例如，拉曼泵单元）耦合到光纤并且调整参考信号以部分地补偿与光纤相关联的损耗和增益倾斜积累。在检测和分析参考信号时，控制器控制光学增益单元，并且基于分析的参考信号向光学增益单元输出控制信号。光放大器连接到光纤并放大光信号。光学增益单元在光放大器的输入处提供每通道几乎恒定的功率。在这种方法下，拉曼增益控制机制与增益控制EDFA（掺铒光纤放大器）结合使用，可实现超长距离的高传输容量，无需光学再生和高灵活性。

2. 发明授权

US06865181B1 Method and apparatus for routing telecommunications signals 失效
标题翻译：用于路由电信信号的方法和装置
公开(公告)号：US06865181B1
公开(公告)日：2005-03-08
申请号：US09532611
申请日：2000-03-22
申请人： Paul M. Elliot , Phu S. Le
发明人： Paul M. Elliot , Phu S. Le
IPC分类号： H04L12/56 , H04L12/50
CPC分类号： H04L49/25 , H04L49/1523 , H04L49/30 , H04L49/357 , H04L49/40
摘要： The present invention discloses a method and apparatus for cross-connecting high-speed telecommunications signals at a cross-connect apparatus. The cross-connect apparatus can transmit the telecommunications signals from an input interface card to a cross-connect card, and from the cross-connect card to an output interface card without any synchronization information. Synchronization of the signals is accomplished with circuitry contained on the interface cards and the cross-connect card. The cross-connect apparatus also includes a control unit for managing the control and timing of the apparatus.
摘要翻译：本发明公开了一种在交叉连接装置上交叉连接高速电信信号的方法和装置。交叉连接装置可以将电信信号从输入接口卡传输到交叉连接卡，并从交叉连接卡传输到输出接口卡，而无需任何同步信息。信号的同步由接口卡和交叉连接卡上包含的电路完成。交叉连接装置还包括用于管理装置的控制和定时的控制单元。

3. 发明授权

US06917412B2 Modular stage with reaction force cancellation 失效
标题翻译：具有反作用力取消的模块级
公开(公告)号：US06917412B2
公开(公告)日：2005-07-12
申请号：US10375785
申请日：2003-02-26
申请人： Alex Ka Tim Poon , Leonard Wai Fung Kho , Pai-Hsueh Yang , Ping-Wei Chang
发明人： Alex Ka Tim Poon , Leonard Wai Fung Kho , Pai-Hsueh Yang , Ping-Wei Chang
IPC分类号： G03F7/20 , G03B27/58 , G03B27/42 , G03B27/62 , G03B27/32
CPC分类号： G03F7/70766 , G03F7/70716 , G03F7/70758
摘要： Methods and apparatus for providing a stage apparatus which is modular and allows for reaction force cancellation are described. According to one aspect of the present invention, a stage apparatus includes a table assembly and a first stage. The table assembly supports an object, e.g., a wafer or a reticle, which is to be moved. The first stage includes a counter mass arrangement, a plurality of carriages, and a plurality of linkages. The plurality of carriages is coupled to the table assembly through the plurality of linkages such that a first carriage and a second carriage are arranged to move in substantially opposite directions along a first axis to cause the table assembly to move along a second axis while reaction forces generated when the first carriage and the second carriage are substantially cancelled by the counter mass arrangement.
摘要翻译：描述了用于提供模块化并允许反作用力抵消的平台装置的方法和装置。根据本发明的一个方面，一种台架装置包括台组件和第一台。桌子组件支撑要移动的物体，例如，晶片或掩模版。第一阶段包括对质量布置，多个托架和多个连杆。多个滑架通过多个连杆联接到工作台组件，使得第一滑架和第二滑架被布置成沿着第一轴线在基本上相反的方向上移动，以使台面组件沿着第二轴线移动，同时反作用力当第一托架和第二托架基本上被反质量布置取消时产生。

4. 发明授权

US06888371B2 Programmable interface for field programmable gate array cores 失效
标题翻译：现场可编程门阵列内核的可编程接口
公开(公告)号：US06888371B2
公开(公告)日：2005-05-03
申请号：US10283019
申请日：2002-10-29
申请人： Dale Wong
发明人： Dale Wong
IPC分类号： G06F15/78 , H03K19/173 , H03K19/177
CPC分类号： G06F15/7867
摘要： A programmable interface for FPGA cores embedded in an integrated circuit. The interface has an interconnect multiplexer (which includes demultiplexers) connected to the FPGA core and other elements of the integrated circuit. A control portion of the interface provides selection control bits to the interconnect multiplexer to make the desired connection configuration. Programmable latches in the control portion hold the selection bits which are loaded into the latches at the same time configuration bits are loaded into the integrated circuit to program the FPGA core. Alternatively, the control portion can be implemented by another FPGA core which is configured as a state machine to generate the selection control bits.
摘要翻译：嵌入在集成电路中的FPGA内核的可编程接口。该接口具有连接到FPGA核心和集成电路的其他元件的互连多路复用器（其包括解复用器）。接口的控制部分向互连多路复用器提供选择控制位以进行所需的连接配置。控制部分中的可编程锁存器将加载到锁存器中的选择位保持在同一时间，配置位被加载到集成电路中以编程FPGA内核。或者，控制部分可以由被配置为状态机的另一FPGA核实现，以产生选择控制位。

5. 发明授权

US06876487B1 Any-to-any all-optical wavelength converter 失效
标题翻译：任意对任何全光波长转换器
公开(公告)号：US06876487B1
公开(公告)日：2005-04-05
申请号：US10098166
申请日：2002-03-14
申请人： Larry R. Marshall
发明人： Larry R. Marshall
IPC分类号： G02F1/35 , G02F1/377 , G02F2/00 , G02F1/365 , G02B6/34
CPC分类号： G02F2/004 , G02F1/3534 , G02F1/3775
摘要： All-optical wavelength converters based upon difference frequency generation (DFG) in optical chips with periodically poled materials are presented. Tunable continuous wave (CW) laser sources and various arrangements are made with the optical input signals in different ITU channels. In some arrangements the laser source(s) acts as the pump for the conversion of the input signals to different wavelengths. In other arrangement, the amplified input signals acts as a pump with the laser source in the role of the input signal. The net effect is that input signals are converted to different wavelengths. One-to-any, any-to-one, and any-to-any wavelength converters are described. Simultanenous conversation can also be preformed so that bands of signals may also be converted.
摘要翻译：提出了基于具有周期性极化材料的光学芯片中的差频产生（DFG）的全光波长转换器。可调连续波（CW）激光源和各种布置采用不同ITU通道的光输入信号。在一些布置中，激光源用作将输入信号转换成不同波长的泵。在其他布置中，放大的输入信号充当泵，激光源作为输入信号。净效果是输入信号被转换成不同的波长。一对一，一对一和任何对任何波长转换器进行描述。也可以进行同步对话，使得信号频带也可以被转换。

6. 发明授权

US06915472B1 Decoding data from multiple sources 有权
标题翻译：从多个来源解码数据
公开(公告)号：US06915472B1
公开(公告)日：2005-07-05
申请号：US10666957
申请日：2003-09-18
申请人： Vincent K. Jones IV , Alireza Raissinia
发明人： Vincent K. Jones IV , Alireza Raissinia
IPC分类号： H04L1/00 , G06F11/00 , H03M13/00 , H03M13/03 , H04B7/204
CPC分类号： H04L1/0068 , H04L1/0054 , H04L1/0065 , H04L2001/0093
摘要： Systems and methods for sharing a single decoder among data streams originating with multiple sources. Error correction coding techniques are modified to facilitate decoding of data from multiple sources multiplexed in the time domain at the decoder input. A single decoder accommodates multiple sources that have been encoded using disparate code rates. One application is an OFDM point to multipoint system.
摘要翻译：用于在由多个源发起的数据流中共享单个解码器的系统和方法。纠错编码技术被修改以便于在解码器输入处在时域中多路复用的多个源的数据解码。单个解码器容纳已经使用不同代码率编码的多个源。一个应用是OFDM点到多点系统。

7. 发明授权

US06903863B1 Gain flattened bi-directionally pumped Raman amplifier for WDM transmission systems 有权
标题翻译：为WDM传输系统增益扁平双向泵浦拉曼放大器
公开(公告)号：US06903863B1
公开(公告)日：2005-06-07
申请号：US10006535
申请日：2001-12-05
申请人： Federico Carniel , Fabrizio Di Pasquale , Ada Livia Braverman
发明人： Federico Carniel , Fabrizio Di Pasquale , Ada Livia Braverman
IPC分类号： H01S3/00 , H01S3/067 , H01S3/094 , H01S3/30 , H04B10/17
CPC分类号： H04B10/2916 , H01S3/06754 , H01S3/094011 , H01S3/094096 , H01S3/302 , H04B10/294
摘要： Raman amplification of a WDM signal with excellent gain flatness across a very large bandwidth is achieved. Co-propagating and counter-propagating Raman pumping are combined in the same fiber. Multiple pumping wavelengths are employed. Wavelengths employed for co-propagating pumping and wavelengths employed for counter-propagating pumping alternate in order of wavelength. In one embodiment, N co-propagating pump wavelengths and N+1 counter-propagating pump wavelengths are used. Alternatively, one may use N+1 co-propagating pump wavelengths and N counter-propagating pump wavelengths.
摘要翻译：实现了在非常大的带宽上具有优异的增益平坦度的WDM信号的拉曼放大。共同传播和反向传播的拉曼泵浦结合在相同的纤维中。采用多个泵浦波长。用于共传播泵浦的波长和用于反向传播泵浦的波长以波长的顺序交替。在一个实施例中，使用N个共同传播的泵浦波长和N + 1个反向传播的泵浦波长。或者，可以使用N + 1个共同传播的泵浦波长和N个反向传播的泵浦波长。

8. 发明授权

US06888899B2 Spatio-temporal processing for communication 有权
标题翻译：通信时空处理
公开(公告)号：US06888899B2
公开(公告)日：2005-05-03
申请号：US10172373
申请日：2002-06-13
申请人： Gregory G. Raleigh , Vincent K. Jones, IV , Michael A. Pollack
发明人： Gregory G. Raleigh , Vincent K. Jones, IV , Michael A. Pollack
IPC分类号： H04J15/00 , H04B1/10 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/24 , H04L1/00 , H04L1/06 , H04L1/18 , H04L25/02 , H04L27/26 , H04W16/28 , H04W72/00 , H04W88/02 , H04W88/08 , H04L27/12 , H04L1/02
CPC分类号： H04B7/0615 , H04B1/1081 , H04B7/0443 , H04B7/0469 , H04B7/0619 , H04B7/0626 , H04B7/0658 , H04B7/0669 , H04B7/068 , H04B7/0842 , H04B7/0854 , H04B7/10 , H04L1/0041 , H04L1/0054 , H04L1/0057 , H04L1/0059 , H04L1/006 , H04L1/0065 , H04L1/0071 , H04L1/0606 , H04L1/0618 , H04L1/18 , H04L1/1812 , H04L5/0007 , H04L5/0023 , H04L5/0028 , H04L5/0046 , H04L25/0204 , H04L25/021 , H04L25/0212 , H04L25/0242 , H04L25/03305 , H04L25/03331 , H04L25/03343 , H04L27/2601 , H04L27/2608 , H04L27/2626 , H04L27/2647 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04W16/28 , H04W72/00 , H04W88/02 , H04W88/08
摘要： A space-time signal processing system with advantageously reduced complexity. The system may take advantage of multiple transmitter antenna elements and/or multiple receiver antenna element or multiple polarizations of a single transmitter antenna element and/or single receiver antenna element. The system is not restricted to wireless contexts and may exploit any channel having multiple inputs or multiple outputs and certain other characteristics. Multi-path effects in a transmission medium cause a multiplicative increase in capacity.
摘要翻译：时空信号处理系统，其复杂性有所降低。该系统可以利用单个发射机天线元件和/或单个接收机天线元件的多个发射机天线元件和/或多个接收机天线元件或多个极化。该系统不限于无线上下文，并且可以利用具有多个输入或多个输出和某些其它特征的任何信道。传输介质中的多路径效应导致容量的乘法增加。

9. 发明授权

US06862297B1 Wide range frequency offset estimation in OFDM systems 失效
标题翻译： OFDM系统中的宽范围频率偏移估计
公开(公告)号：US06862297B1
公开(公告)日：2005-03-01
申请号：US09469715
申请日：1999-12-21
申请人： James M. Gardner , Vincent K. Jones IV
发明人： James M. Gardner , Vincent K. Jones IV
IPC分类号： H04L27/26 , H04J3/06 , H04J1/00 , H04J11/00 , H04L7/00 , H04N7/12
CPC分类号： H04L27/2686 , H04L27/261 , H04L27/2659 , H04L27/266
摘要： Systems and methods for wide offset frequency synchronization in OFDM communications. Frequency domain OFDM bursts include training symbols having known transmitted values in known frequency domain positions. Received values at the known training symbol positions are correlated from burst to burst. The magnitudes are used to establish and correct small integer frequency offsets as measured in frequency domain symbol widths. The phase of the correlation result is used to determine and correct integer frequency offsets that exceed the training tone spacing. Use of the phase to correct large frequency offsets greatly extends the acquisition range required for low cost analog components.
摘要翻译： OFDM通信中宽偏移频率同步的系统和方法。频域OFDM突发包括在已知频域位置具有已知传输值的训练符号。已知训练符号位置处的接收值从脉冲串到脉冲串相关。大小用于建立和校正在频域符号宽度中测量的小整数频率偏移。相关结果的相位用于确定和校正超过训练音间隔的整数频率偏移。使用相位校正大频率偏移大大扩展了低成本模拟组件所需的采集范围。

10. 发明授权

US06857046B1 Caching for context switching applications 有权
标题翻译：上下文切换应用程序的缓存
公开(公告)号：US06857046B1
公开(公告)日：2005-02-15
申请号：US10109318
申请日：2002-03-28
申请人： Kenneth W. Batcher
发明人： Kenneth W. Batcher
IPC分类号： G06F9/46 , G06F12/08 , G06F12/00
CPC分类号： G06F9/461 , G06F12/0842
摘要： Techniques for implementing caches for context switching applications are provided. A context identifier is stored in the cache to indicate the context to which data in the cache is associated. Additionally, the context can have different priorities so that storage space in the cache can be more efficiently allocated to the contexts based on their priorities.
摘要翻译：提供了用于实现上下文切换应用的高速缓存的技术。上下文标识符被存储在高速缓存中以指示高速缓存中哪个数据被关联的上下文。另外，上下文可以具有不同的优先级，使得缓存中的存储空间可以基于它们的优先级更有效地分配给上下文。

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