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1.发明授权公开(公告)号：US06975640B2
公开(公告)日：2005-12-13
申请号：US10810372
申请日：2004-03-26
CPC分类号： H04L41/00 , H04L41/0896 , H04L69/323
摘要： A method and associated apparatus for embedding control information in a data signal to be transmitted over a data link by a network node includes the generation of control information to be transmitted over a data link by a network node. Additionally, a transmission signal is generated by combining the control information with data to be transmitted. In an embodiment of the present invention, the data is transmitted within a prescribed frequency bandwidth such that a frequency gap is defined within the frequency bandwidth. Control information is, as such, transmitted within the defined frequency gap.
摘要翻译： 一种将网络节点通过数据链路发送的数据信号中嵌入控制信息的方法和相关装置包括通过网络节点在数据链路上发送的控制信息的产生。 另外，通过将控制信息与要发送的数据组合来生成发送信号。 在本发明的一个实施例中，数据在规定的频率带宽内传输，使得在频率带宽内定义频率间隙。 因此，控制信息在定义的频率间隙内传输。
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公开(公告)号：US07254335B1
公开(公告)日：2007-08-07
申请号：US10008507
申请日：2001-11-08
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0209 , H04J14/0213 , H04J14/0219 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283
摘要： A module that includes both an “add-in”/“drop-out” pair of ports and a “drop-in”/“add-out” pair of ports comprises an arrangement of elements that combines an optical signal having a chosen wavelength with an optical signal applied at the “add-in” port, and outputs the combined signal at the “add-out port.” Concurrently, the module extracts an optical signal with the same wavelength from an optical signal applied at the “drop-in” port signal, yielding an optical signal at the “drop-out” port that is missing that same wavelength. When the amount of information that needs to be sent from a first network node to a second, remote, node, is greater than that which a single wavelength can handle, a plurality of the above-described modules are interconnected within the first node by optically coupling the “add” ports in a “daisy chain” fashion and the “drop” ports in a “daisy chain” fashion, with each module operating at a different wavelength.
摘要翻译： 包括“附加”/“辍学”端口对和“插入”/“附加”对端口的模块包括组合具有所选波长的光信号的元件的布置 在“附加”端口处施加光信号，并在“添加端口”处输出组合信号。 同时，该模块从在“插入”端口信号处施加的光信号中提取具有相同波长的光信号，从而在“丢失”端口处产生缺少相同波长的光信号。 当需要从第一网络节点发送到第二远程节点的信息量大于单个波长可以处理的信息量时，多个上述模块在第一节点内通过光学 以“菊花链”方式耦合“添加”端口，以“菊花链”方式耦合“插入”端口，每个模块以不同的波长工作。
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3.发明授权Reconfigurable ADD/DROP, multiplexer/demultiplexer using a transceiver with loop-back function 有权可重新配置的ADD / DROP，多路复用器/解复用器使用带有环回功能的收发器公开(公告)号：US07161964B2
公开(公告)日：2007-01-09
申请号：US10241232
申请日：2002-09-11
IPC分类号： H04J3/04
CPC分类号： H04J3/08 , H04J3/04 , H04J14/0206 , H04J14/0212
摘要： A reconfigurable ADD/DROP multiplexer/demultiplexer apparatus is implemented by connecting a multiplexer/demultiplexer apparatus to a serializer/deserializer (SERDES) apparatus having a loop-back capability. By selectively activating the loop-back functionality of the SERDES apparatus the combination can be made to function as a reconfigurable ADD/DROP multiplexer/demultiplexer apparatus.
摘要翻译： 通过将多路复用器/解复用器装置连接到具有环回能力的串行器/解串器（SERDES）装置来实现可重新配置的ADD / DROP多路复用器/解复用器装置。 通过选择性地激活SERDES设备的环回功能，可以将组合用作可重新配置的ADD / DROP多路复用器/解复用器设备。
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公开(公告)号：US07092471B2
公开(公告)日：2006-08-15
申请号：US10153390
申请日：2002-05-22
CPC分类号： H03L7/0814 , H03K2005/00058 , H03L7/087 , H03L7/091 , H04L7/033
摘要： A synchronization circuit including a plurality of samplers, the plurality of samplers sampling an input signal with a plurality of respective clock signals and producing a plurality of respective sampled output signals. The synchronization circuit also includes at least one phase detector coupled to the plurality of samplers, the at least one phase detector determining whether the plurality of sampled output signals are different and producing at least one control signal, the at least one control signal indicating whether the plurality of sampled output signals are different. In addition, the synchronization circuit includes a delay adjuster coupled to the at least one phase detector, the delay adjuster adjusting a delay of the input signal according to the at least one control signal output by the at least one phase detector.
摘要翻译： 一种包括多个采样器的同步电路，所述多个采样器对具有多个相应时钟信号的输入信号进行采样，并产生多个相应的采样输出信号。 所述同步电路还包括耦合到所述多个采样器的至少一个相位检测器，所述至少一个相位检测器确定所述多个采样输出信号是否不同并且产生至少一个控制信号，所述至少一个控制信号指示是否 多个采样输出信号不同。 另外，同步电路包括耦合到至少一个相位检测器的延迟调节器，延迟调节器根据由至少一个相位检测器输出的至少一个控制信号调整输入信号的延迟。
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5.发明授权公开(公告)号：US06754238B1
公开(公告)日：2004-06-22
申请号：US09592338
申请日：2000-06-13
IPC分类号： H04J312
CPC分类号： H04L41/00 , H04L41/0896 , H04L69/323
摘要： A method and associated apparatus for embedding control information in a data signal to be transmitted over a data link by a network node. The method comprises generation of control information to be transmitted over a data link by a network node. A signal is generated by combining the control information with the data. In a first embodiment, the data includes individual temporal packets of information such that an interpacket gap is temporally defined between said temporal packets of information. Control information is transmitted within the interpacket gap. In a second embodiment, the data is transmitted within a prescribed frequency bandwidth such that a frequency gap is defined within the frequency bandwidth. Control information is transmitted within the frequency gap. The data handling capacity of the control information is maintained in both the first and the second embodiments.
摘要翻译： 一种用于将控制信息嵌入到要通过网络节点在数据链路上传输的数据信号的方法和相关联的装置。 该方法包括通过网络节点通过数据链路发送的控制信息的产生。 通过将控制信息与数据组合来产生信号。 在第一实施例中，数据包括信息的单个时间分组，使得在所述时间信息分组之间临时定义分组间隙。 在分组间隙内发送控制信息。 在第二实施例中，数据在规定的频率带宽内传输，使得在频率带宽内定义频率间隙。 控制信息在频率间隙内传输。 在第一和第二实施例中都保持控制信息的数据处理能力。
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6.发明授权Smart pixel optical receiver employing sense amplifier and method of operation thereof 失效采用读出放大器的智能像素光接收器及其操作方法
公开(公告)号：US5644418A
公开(公告)日：1997-07-01
申请号：US570171
申请日：1995-12-07
申请人： Ted K. Woodward
发明人： Ted K. Woodward
IPC分类号： H04B10/00 , H04B10/158 , H04B10/06
CPC分类号： H04B10/69 , H04B10/803
摘要： An optical receiver, a method of converting an optical signal into an output electrical signal suitable for use by digital circuitry and an optoelectronic data processing system. The optical receiver includes: (1) an optical sensor for receiving an optical signal, generating in response thereto an analog electrical signal and transmitting the analog electrical signal therefore along an electrical path and (2) a sense amplifier having cross-coupled inverting amplifiers and a clock input, at least one of first and second inputs of the sense amplifier coupled to the electrical path, respectively, to allow the sense amplifier to detect the analog electrical signal when a clock signal at the clock input is high, regenerative feedback within the sense amplifier driving the first and second outputs to complementary logic levels when the clock signal is low, the clock signal controlling the regenerative feedback of the sense amplifier to amplify the analog electrical signal into an output electrical signal provided at the first and second outputs and suitable for use by digital circuitry operating as part of an optoelectronic data processing system.
摘要翻译： 一种光接收机，一种将光信号转换为适合数字电路和光电数据处理系统使用的输出电信号的方法。 光接收机包括：（1）用于接收光信号的光传感器，响应于此产生模拟电信号，并沿着电路径传输模拟电信号;（2）具有交叉耦合反相放大器和 时钟输入，分别耦合到电路径的读出放大器的第一和第二输入中的至少一个，以允许读出放大器在时钟输入处的时钟信号为高时检测模拟电信号， 读出放大器在时钟信号为低时将第一和第二输出驱动到互补逻辑电平，时钟信号控制读出放大器的再生反馈以将模拟电信号放大为在第一和第二输出处提供的输出电信号，并且适合 供数字电路用作光电子数据处理系统的一部分。
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公开(公告)号：US08693875B2
公开(公告)日：2014-04-08
申请号：US12621863
申请日：2009-11-19
申请人： Thomas Banwell , Anjali Agarwal , Paul Toliver , Ted K. Woodward
发明人： Thomas Banwell , Anjali Agarwal , Paul Toliver , Ted K. Woodward
IPC分类号： H04B10/00
CPC分类号： H04B10/25759
摘要： A system and method for optimizing an optical RF photonic link system is presented. The system comprises a modulator subsystem in which nonlinear response is compensated by an envelope precompensation method and employs an optical filter to suppress optical carriers and extract modulated sidebands, an optical amplifier, and an array of photodetectors, each having a plurality of pairs of diodes. The modulator subsystem performs optical filtering on the signal, the signal is amplified by the optical amplifier and sent to the array of photodetectors. The optical amplifier can be an erbium doped fiber amplifier, or a phase sensitive amplifier. The optical power can be delivered to each diode of the array of photodetectors via a photonic integrated circuit.
摘要翻译： 提出了一种用于优化光RF链路系统的系统和方法。 该系统包括调制器子系统，其中非线性响应由包络预补偿方法补偿，并且使用滤光器来抑制光载波并提取调制边带，光放大器和光电检测器阵列，每个具有多对二极管。 调制器子系统对信号进行光滤波，信号由光放大器放大并发送到光电检测器阵列。 光放大器可以是掺铒光纤放大器或相位敏感放大器。 光功率可以通过光子集成电路传送到光电检测器阵列的每个二极管。
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公开(公告)号：US20120134307A1
公开(公告)日：2012-05-31
申请号：US13285571
申请日：2011-10-31
申请人： Ted K. Woodward , John C. Koshy , Joseph Liberti , Thomas Banwell
发明人： Ted K. Woodward , John C. Koshy , Joseph Liberti , Thomas Banwell
IPC分类号： H04B7/04
CPC分类号： H04B7/0413
摘要： A high rate radio frequency (RF) link system and method for spatially multiplexing data transmission is presented. The system can comprise a common communications point characterized by a first collection of antennas having independent channels interconnected with a known latency connection to a central process location, such as with optical fiber; and a second similarly configured collective endpoint or set of endpoints wherein multi-path between the first collection and the second collection is negligible. Signal decorrelation between independent channels is achieved through a combination of spatial separation and signal processing. In one aspect, decorrelation is performed using near-maximum likelihood Multiple-Input Multiple-Output signal processing.
摘要翻译： 提出了一种用于空间复用数据传输的高速率射频（RF）链路系统和方法。 该系统可以包括公共通信点，其特征在于具有独立信道的天线的第一集合，其具有与诸如光纤的中央处理位置的已知等待时间连接互连; 以及第二类似配置的集合端点或端点集合，其中第一集合和第二集合之间的多路径是可忽略的。 通过空间分离和信号处理的组合实现独立信道之间的信号去相关。 在一个方面，使用近似最大似然多输入多输出信号处理执行解相关。
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公开(公告)号：US5436756A
公开(公告)日：1995-07-25
申请号：US954201
申请日：1992-09-30
申请人： Wayne H. Knox , Jason B. Stark , Benjamin Tell , Ted K. Woodward
发明人： Wayne H. Knox , Jason B. Stark , Benjamin Tell , Ted K. Woodward
摘要： Photocurrent suppression is achieved without deleteriously affecting modulation performance in a surface normal, electro-absorption, quantum well modulator by introducing a sufficient number of non-radiative recombination centers in the quantum well region of the modulator. The presence of the non-radiative recombination centers significantly shortens the lifetime of photogenerated carriers and, thereby, suppresses the photocurrent. Modulation performance characteristics such as contrast ratio are maintained at acceptable levels even though exciton broadening occurs in the quantum wells. The present modulator exhibits a careful balance between defect density in the quantum wells and the acceptable degree of exciton broadening necessary to preserve quantum effects.
摘要翻译： 通过在调制器的量子阱区域中引入足够数量的非辐射复合中心，实现光电流抑制，而不会有害地影响表面法线电吸收量子阱调制器中的调制性能。 非辐射复合中心的存在显着缩短了光生载流子的寿命，从而抑制了光电流。 即使在量子阱中发生激子扩展，调制性能特性如对比度也保持在可接受的水平。 本调制器在量子阱中的缺陷密度和保持量子效应所必需的可接受的激子扩展程度之间表现出谨慎的平衡。
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公开(公告)号：US5289015A
公开(公告)日：1994-02-22
申请号：US785670
申请日：1991-10-31
IPC分类号： H01L21/822 , G02F3/02 , H01L27/04 , H01L27/095 , H01L27/144 , H01L27/15 , H01L29/80 , H01L29/86 , H01L31/10 , H01L27/14
CPC分类号： G02F3/028 , H01L27/1443 , H01L27/15 , G02F2203/02
摘要： FETs and quantum well diodes are combined on the same semi-insulating substrate, while providing the FETs with protection from spurious voltages. A deeply buried P region in the semi-insulating substrate is partitioned by a high resistivity proton implanted region, to provide both the P region of the quantum well diode and an isolating buried P layer for the FETs.
摘要翻译： FET和量子阱二极管组合在相同的半绝缘衬底上，同时为FET提供防止杂散电压的保护。 半绝缘基板中的深埋P区被高电阻质子注入区分隔，以提供量子阱二极管的P区和FET的隔离掩埋P层。
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