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1.发明授权Peak-hold circuit and signal strength indicator using the peak-hold circuit 有权峰值保持电路和信号强度指示器使用峰值保持电路公开(公告)号：US07853226B2
公开(公告)日：2010-12-14
申请号：US11979679
申请日：2007-11-07
申请人： Manabu Hirata , Takashi Taya , Kazuyuki Tajima
发明人： Manabu Hirata , Takashi Taya , Kazuyuki Tajima
IPC分类号： H04B1/16
CPC分类号： H03F3/45
摘要： A peak-hold circuit includes a differential amplifier having first and second transistors as a differential pair, the first transistor receiving an input signal at its gate, a third transistor connected between a first power supply and an output node connecting a gate of the second transistor, connectivity of the third transistor being controlled by the output of the differential amplifier, a capacitor for holding a peak voltage, connected between the output node and a second power supply, a resistor for discharging, which is connected in parallel to the capacitor, and a fourth transistor connected to the first transistor in parallel, the fourth transistor receiving at its gate an a reference voltage for limiting a voltage.
摘要翻译： 峰值保持电路包括具有作为差分对的第一和第二晶体管的差分放大器，第一晶体管在其栅极接收输入信号，连接在第一电源和连接第二晶体管的栅极的输出节点之间的第三晶体管 连接在输出节点和第二电源之间的用于保持峰值电压的电容器，与电容器并联连接的用于放电的电阻器，以及 第四晶体管并联连接到第一晶体管，第四晶体管在其栅极处接收用于限制电压的参考电压。
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2.发明申请Peak-hold circuit and signal strength indicator using the peak-hold circuit 有权峰值保持电路和信号强度指示器使用峰值保持电路公开(公告)号：US20080164913A1
公开(公告)日：2008-07-10
申请号：US11979679
申请日：2007-11-07
申请人： Manabu Hirata , Takashi Taya , Kazuyuki Tajima
发明人： Manabu Hirata , Takashi Taya , Kazuyuki Tajima
IPC分类号： G01R19/00
CPC分类号： H03F3/45
摘要： A peak-hold circuit includes a differential amplifier having first and second transistors as a differential pair, the first transistor receiving an input signal at its gate, a third transistor connected between a first power supply and an output node connecting a gate of the second transistor, connectivity of the third transistor being controlled by the output of the differential amplifier, a capacitor for holding a peak voltage, connected between the output node and a second power supply, a resistor for discharging, which is connected in parallel to the capacitor, and a fourth transistor connected to the first transistor in parallel, the fourth transistor receiving at its gate an a reference voltage for limiting a voltage.
摘要翻译： 峰值保持电路包括具有作为差分对的第一和第二晶体管的差分放大器，第一晶体管在其栅极接收输入信号，连接在第一电源和连接第二晶体管的栅极的输出节点之间的第三晶体管 连接在输出节点和第二电源之间的用于保持峰值电压的电容器，与电容器并联连接的用于放电的电阻器，以及 第四晶体管并联连接到第一晶体管，第四晶体管在其栅极处接收用于限制电压的参考电压。
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公开(公告)号：US20060197610A1
公开(公告)日：2006-09-07
申请号：US11346296
申请日：2006-02-03
申请人： Manabu Hirata , Yoichi Fueki , Kazuyuki Tajima
发明人： Manabu Hirata , Yoichi Fueki , Kazuyuki Tajima
IPC分类号： H03L7/00
CPC分类号： H03L7/0995
摘要： A voltage controlled oscillator which performs an oscillating operation at a frequency corresponding to a control voltage, includes a voltage-current converter circuit which converts the control voltage to a control current corresponding to a voltage value thereof, and a ring oscillator through which an operating current corresponding to the control current generated by the voltage-current converter circuit is caused to flow, and which oscillates at a frequency corresponding to a current value thereof. The voltage-current converter circuit has a voltage-voltage converting circuit which inputs the control voltage therein and converts the same to a control current corresponding to the voltage value thereof, and an offset current generating circuit which adds a constant current to the control current.
摘要翻译： 以与控制电压对应的频率进行振荡动作的压控振荡器包括：电压 - 电流转换器电路，其将控制电压转换为对应于其电压值的控制电流;以及环路振荡器，通过该振荡器，工作电流 与由电压 - 电流转换器电路产生的控制电流相对应地流过，并以与其电流值对应的频率振荡。 电压 - 电流转换器电路具有输入其中的控制电压的电压 - 电压转换电路，并将其转换成与其电压值相对应的控制电流，以及将恒定电流加到控制电流上的偏移电流产生电路。
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公开(公告)号：US07679467B2
公开(公告)日：2010-03-16
申请号：US11346296
申请日：2006-02-03
申请人： Manabu Hirata , Yoichi Fueki , Kazuyuki Tajima
发明人： Manabu Hirata , Yoichi Fueki , Kazuyuki Tajima
IPC分类号： H03K3/03
CPC分类号： H03L7/0995
摘要： A voltage controlled oscillator which performs an oscillating operation at a frequency corresponding to a control voltage, includes a voltage-current converter circuit which converts the control voltage to a control current corresponding to a voltage value thereof, and a ring oscillator through which an operating current corresponding to the control current generated by the voltage-current converter circuit is caused to flow, and which oscillates at a frequency corresponding to a current value thereof. The voltage-current converter circuit has a voltage-voltage converting circuit which inputs the control voltage therein and converts the same to a control current corresponding to the voltage value thereof, and an offset current generating circuit which adds a constant current to the control current.
摘要翻译： 以与控制电压对应的频率进行振荡动作的压控振荡器包括：电压 - 电流转换器电路，其将控制电压转换为对应于其电压值的控制电流;以及环路振荡器，通过该振荡器，工作电流 与由电压 - 电流转换器电路产生的控制电流相对应地流过，并以与其电流值对应的频率振荡。 电压 - 电流转换器电路具有输入其中的控制电压的电压 - 电压转换电路，并将其转换成与其电压值相对应的控制电流，以及将恒定电流加到控制电流上的偏移电流产生电路。
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5.发明授权Dispersion compensation design method and dispersion compensation design system 有权色散补偿设计方法和色散补偿设计系统公开(公告)号：US08805199B2
公开(公告)日：2014-08-12
申请号：US13301149
申请日：2011-11-21
IPC分类号： H04B10/12 , H04B10/2525
CPC分类号： H04B10/25253
摘要： A dispersion compensation design system includes a changing unit setting a changed value for the amount of dispersion compensation for a span connecting nodes constituting an optical network; a path classification unit determining whether respective paths in the optical network are capable of transmission with the changed value and classifying one or more of the paths as second category paths based on the determination results; an updating unit updating the amount of dispersion compensation with the changed value if the number of the second category paths in the latest classification result is less than the number of the second category paths in the retained previous classification result; and a repeating unit that, if not all of the paths in the optical network are capable of transmission, prevents use of combinations of amounts of dispersion compensation applied to the spans in the second category paths in the latest classification result.
摘要翻译： 色散补偿设计系统包括：改变单元，设置用于构成光网络的节点的跨度的色散补偿量的变化值; 路径分类单元，确定光网络中的相应路径是否能够以改变的值传输，并且基于确定结果将一个或多个路径分类为第二类别路径; 如果最新分类结果中的第二类别路径的数量少于所保留的先前分类结果中的第二类别路径的数量，则更新单元用改变的值更新色散补偿量; 以及如果不是全部光网络中的路径能够传输的重复单元，则防止在最新分类结果中使用在第二类别路径中应用于跨度的色散补偿量的组合。
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6.发明授权Dispersion compensation design method and dispersion compensation design system 有权色散补偿设计方法和色散补偿设计系统公开(公告)号：US08781329B2
公开(公告)日：2014-07-15
申请号：US13363917
申请日：2012-02-01
CPC分类号： H04B10/275 , H04B10/25253 , H04J14/02
摘要： A dispersion compensation design system includes a segment dividing unit to divide an optical network into segments of a linear network or a ring network, a path classifying unit to classify one of paths of the optical network, as a specific type path, the one of the paths being incapable of transmitting an optical signal and contained in a longer path having a route longer than that of the one of the paths and capable of transmitting the optical signal, a segment reconfiguration unit to reconfigure the segments so as to maximize a number of the specific type paths, a dispersion compensation amount computing unit to compute a dispersion compensation amount in any of spans of the optical network so as to minimize the number of the specific type paths within the reconfigured segment, and an update unit to update the dispersion compensation amount with the computed dispersion compensation amount.
摘要翻译： 色散补偿设计系统包括一个分段单元，用于将光网络划分为线性网络或环网的分段，路径分类单元将光网络中的一条路径分类为特定类型路径， 路径不能发送光信号并且包含在具有比该一个路径的路径长的路径的较长路径中并且能够发送光信号的段重配置单元，以重新配置段，以便最大化 特定类型路径，色散补偿量计算单元，用于计算光网络中的任一跨度的色散补偿量，以便最小化重配置段内的特定类型路径的数量;以及更新单元，用于更新色散补偿量 与计算的色散补偿量。
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公开(公告)号：US07761006B2
公开(公告)日：2010-07-20
申请号：US11808911
申请日：2007-06-13
CPC分类号： H04J14/0227 , H04B10/275 , H04J14/0241 , H04J14/0283 , H04J14/0284 , H04J14/0286
摘要： An appropriate ring topology is selected by searching network topology information on the basis of given information about client signal paths on a predetermined condition, and a wavelength ring accommodating the client signal paths and having an optimal transmission characteristic is designed on the basis of the selected ring topology. Accordingly, accommodation of client signal paths in an optical network is efficiently designed.
摘要翻译： 通过在预定条件下，基于关于客户信号路径的给定信息搜索网络拓扑信息来选择适当的环形拓扑，并且基于所选择的环设计容纳客户端信号路径并具有最佳传输特性的波长环 拓扑。 因此，有效地设计了光网络中的客户端信号路径的适应。
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8.发明申请公开(公告)号：US20090220241A1
公开(公告)日：2009-09-03
申请号：US12395709
申请日：2009-03-01
申请人： Toru KATAGIRI , Tomohiro Hashiguchi , Yutaka Takita , Kazuyuki Tajima , Motoyoshi Sekiya , Takashi Toyomaki
发明人： Toru KATAGIRI , Tomohiro Hashiguchi , Yutaka Takita , Kazuyuki Tajima , Motoyoshi Sekiya , Takashi Toyomaki
IPC分类号： H04J14/02
CPC分类号： H04B10/25133 , H04J14/0221
摘要： A residual chromatic dispersion target value at a terminal node is set for each wavelength path, and also, candidates of a dispersion compensation amount settable in each chromatic dispersion compensation module on an optical network are set, and further, computation processing is executed for selecting the dispersion compensation amount in each chromatic dispersion compensation module from the candidates so that the sum of errors between the residual chromatic dispersion amounts and the set residual chromatic dispersion target values at the terminal nodes for all of wavelength paths becomes minimum. As a result, for each wavelength path on the optical network, the dispersion compensation amount in each chromatic dispersion compensation module can be designed in optimum so as to satisfy the desired optical signal quality at the terminal node, while considering the residual chromatic dispersion during the transmission.
摘要翻译： 针对每个波长路径设置终端节点的残留色散目标值，并且设置在光网络上的每个色散补偿模块中可设置的色散补偿量的候选，并且还执行计算处理以选择 每个色散补偿模块中的色散补偿量，使得残留色散量与所有波长路径的终端节点处的残留色散目标值之间的误差之和变得最小。 结果，对于光网络上的每个波长路径，可以将每个色散补偿模块中的色散补偿量最优地设计成在终端节点处满足期望的光信号质量，同时考虑到在 传输。
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9.发明申请公开(公告)号：US20090185805A1
公开(公告)日：2009-07-23
申请号：US12235166
申请日：2008-09-22
IPC分类号： H04B10/20
CPC分类号： H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0284 , H04L41/145 , H04Q11/0062 , H04Q2011/0086 , H04Q2213/1301
摘要： A network design apparatus designs arrangement of various types of optical transmission devices in stations within a linear section in a network. An acquisition unit acquires information concerning the type of optical transmission device to be provided in the stations, and information concerning cost and transmission degradation for the optical transmission devices. The designing unit designs, based on the information acquired by the acquisition unit, an arrangement for which transmission degradation between stations respectively including an optical transmission device applicable as an optical regenerative repeater, is less than or equal to a threshold, and also has the least cost. An output unit outputs information concerning the arrangement designed by the design unit.
摘要翻译： 网络设计装置在网络中的线性部分内的站内设计各种类型的光传输设备的布置。 获取单元获取关于要在站中提供的光传输设备的类型的信息，以及关于光传输设备的成本和传输劣化的信息。 设计单元基于由采集单元获取的信息，设计分别包括可用作光学再生中继器的光传输设备的站之间的传输劣化小于或等于阈值的布置，并且还具有最小 成本。 输出单元输出关于由设计单元设计的布置的信息。
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10.发明申请Method and apparatus for keeping track of virtual LAN topology in network of nodes 有权在节点网络中跟踪虚拟LAN拓扑的方法和装置公开(公告)号：US20050265356A1
公开(公告)日：2005-12-01
申请号：US11050152
申请日：2005-02-03
CPC分类号： H04L45/26 , H04L12/4641 , H04L45/02
摘要： An arbitrary node that belongs to a virtual LAN sends a request packet including a count value indicating the number of communication hops across nodes to each of its adjacent nodes that belong to the virtual LAN and are adjacent. Upon receiving the request packet, each of the adjacent nodes sends the request packet in which the count value is incremented or decremented, as predetermined, to each of its adjacent nodes that belong to the virtual LAN and are adjacent to the node, excluding a sender of the request packet received, and sends a reply packet including the sender's address (sender address), an address of the node that is a replying node (replying node address), and the count value to a given return destination. The return destination collects reply packets sent thereto and keeps track of the topology of the nodes constituting the virtual LAN from information contained in the reply packets.
摘要翻译： 属于虚拟LAN的任意节点将包含指示跨越节点的通信跳数的计数值的请求分组发送给属于虚拟LAN并且相邻的每个相邻节点。 在接收到请求分组时，每个相邻节点将计数值按预定的顺序递增或递减的请求分组发送到属于虚拟LAN并且与该节点相邻并且与该节点相邻的每个相邻节点，不包括发送者 并且发送包括发送方地址（发送方地址）的应答分组，作为应答节点的节点的地址（回复节点地址），并将计数值发送给给定的返回目的地。 返回目的地收集发送到其中的应答分组，并且从包含在应答分组中的信息中跟踪构成虚拟LAN的节点的拓扑。
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