公开(公告)号：US07643751B2

公开(公告)日：2010-01-05

申请号：US11826889

申请日：2007-07-19

申请人： Kyosuke Sone ,  Yutaka Kai

发明人： Kyosuke Sone ,  Yutaka Kai

IPC分类号： G02F1/00

CPC分类号： H04L43/0811 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0258 ,  H04J14/0283 ,  H04J14/0294 ,  H04J14/0295 ,  H04L12/437 ,  H04L41/06 ,  H04L41/0816 ,  H04L41/082

摘要： A network managing apparatus is connected to one of multiple OADM nodes that execute optical communication on an optical ring network configured by a two-line transmission path including of an active line and a backup line. The apparatus includes a storing unit that stores arrangement information of the OADM nodes and operating wavelength information of optical signals transmitted by the nodes. A controlling unit updates the operating wavelength information retained in the storing unit based on fault information from the OADM nodes and distributes the updated operating wavelength information to the OADM nodes.

摘要翻译： 网络管理装置连接到在由包括有效线路和备用线路的双线路传输路径配置的光环网络上执行光通信的多个OADM节点之一。 该装置包括存储单元，其存储OADM节点的布置信息和由节点发送的光信号的工作波长信息。 控制单元基于来自OADM节点的故障信息来更新保存在存储单元中的操作波长信息，并将更新的操作波长信息分发给OADM节点。

公开(公告)号：US20090297162A1

公开(公告)日：2009-12-03

申请号：US12461267

申请日：2009-08-05

申请人： Yutaka Kai ,  Yasuhiko Aoki

发明人： Yutaka Kai ,  Yasuhiko Aoki

IPC分类号： H04B10/02

CPC分类号： H04J3/1694 ,  H04B10/272 ,  H04J3/22 ,  H04Q11/0067 ,  H04Q2011/0064

摘要： An optical communication base station which receives an upstream optical signal having an upstream bit rate specific to each one of a plurality of lower order communication units from a corresponding one of the plurality of lower order communication units, and which transmits a downstream optical signal having a downstream bit rate specific to each one of the plurality of lower order communication units to a designated one of the plurality of lower order communication units, includes; a first optical signal conversion unit which changes the bit rate of the upstream optical signal and thereby converts the upstream optical signal into a fixed bit-rate inter-station optical signal; and a second optical signal conversion unit which converts the inter-station optical signal into the downstream optical signal by changing the bit rate of the inter-station optical signal according to the designated one of the plurality of lower order communication units.

摘要翻译： 一种光通信基站，其从多个下位通信单元中的相应一个接收具有对多个低阶通信单元中的每一个特定的上行比特率的上行光信号，并且发送具有 所述多个低阶通信单元中的每一个的特定下行比特率包括： 第一光信号转换单元，其改变上游光信号的比特率，从而将上游光信号转换为固定比特率站间光信号; 以及第二光信号转换单元，通过根据多个低阶通信单元中指定的一个来改变站间光信号的比特率，将站间光信号转换成下行光信号。

公开(公告)号：US20090185804A1

公开(公告)日：2009-07-23

申请号：US12292337

申请日：2008-11-17

申请人： Yutaka Kai ,  Yasuhiko Aoki

发明人： Yutaka Kai ,  Yasuhiko Aoki

IPC分类号： H04J14/00

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0238 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257

摘要： In an optical access network system in which a relay station receives a wavelength multiplexed and time-division multiplexed optical signal (WDM optical signal) from an optical network, and the relay station transmits optical signals having specified wavelengths to subscriber units, the relay station demultiplexes the WDM optical signal into a plurality of groups with one group having a plurality of optical signals having a fixed wavelength interval between signals, then divides the optical signals of each group into k branches (k is the number of subscriber units) and inputs the signals to optical switches, and by turning ON/OFF the optical switches such that they are spaced in time, inputs the branched optical signals to the respective specified subscribers units.

摘要翻译： 在中继站从光网络接收波分复用光时分复用光信号（WDM光信号）的光接入网系统中，中继站向用户单元发送具有特定波长的光信号的情况下，中继站多路复用 将WDM光信号转换成具有一组具有多个信号之间的固定波长间隔的多个光信号的多个组，然后将每个组的光信号划分为k个分支（k是用户单元的数量），并输入信号 并且通过将光开关的ON / OFF时间间隔开来，将分支的光信号输入到各个指定的订户单元。

公开(公告)号：US20090058534A1

公开(公告)日：2009-03-05

申请号：US12230260

申请日：2008-08-26

申请人： Tomohiro UENO ,  Masaji Noguchi ,  Yutaka Kai ,  Setsuo Yoshida

发明人： Tomohiro UENO ,  Masaji Noguchi ,  Yutaka Kai ,  Setsuo Yoshida

IPC分类号： H03F3/04

CPC分类号： H03F1/565

摘要： A non-inverting amplifier circuit is disclosed that includes an operational amplifier and a preemphasis circuit connected between the operational amplifier and a signal source. The preemphasis circuit is configured to compensate for the internal delay of a load connected to the output of the operational amplifier by emphasizing a high-frequency component of a signal fed from the signal source.

摘要翻译： 公开了一种非反相放大器电路，其包括连接在运算放大器和信号源之间的运算放大器和预加重电路。 预加重电路被配置为通过强调从信号源馈送的信号的高频分量来补偿连接到运算放大器的输出的负载的内部延迟。

公开(公告)号：US07408700B2

公开(公告)日：2008-08-05

申请号：US11384288

申请日：2006-03-21

申请人： Yutaka Kai ,  Setsuo Yoshida

发明人： Yutaka Kai ,  Setsuo Yoshida

IPC分类号： G02F1/29

CPC分类号： G02F1/29 ,  G02F1/31 ,  G02F2001/311

摘要： An optical switch which minimizes losses in the power of output light while enabling deflection of light within a range of comparatively large deflection angles used for setting switching among output ports. The optical switch is configured to have a first light deflection element deflecting the input light at an angle appropriate to a position of an designated port with an applied first drive voltage; and a second light deflection element finely adjusting a deflection angle of the light output from the first deflection element to the designated port with an applied second drive voltage such that power of light output from the designated port becomes maximum.

摘要翻译： 一种光开关，其使输出光功率的损耗最小化，同时能够在用于设置输出端口之间的切换的较大偏转角的范围内偏转光。 光开关被配置为具有第一光偏转元件，其以适合于施加的第一驱动电压的指定端口的位置的角度偏转输入光; 以及第二光偏转元件，利用所施加的第二驱动电压，将从所述第一偏转元件输出的光的偏转角度精细地调整到所述指定端口，使得从所述指定端口输出的光的功率变得最大。

公开(公告)号：US20080166121A1

公开(公告)日：2008-07-10

申请号：US11785658

申请日：2007-04-19

申请人： Takashi Nakano ,  Tomohiro Ueno ,  Yutaka Kai ,  Yutaka Takita

发明人： Takashi Nakano ,  Tomohiro Ueno ,  Yutaka Kai ,  Yutaka Takita

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q2011/0024 ,  H04Q2011/0039 ,  H04Q2011/0043 ,  H04Q2011/0058

摘要： A control system of a multichannel optical switch suppressing the generation of a leakage current in a multichannel, highly integrated EO-SW to enable stable operation, that is, a control system of a multichannel optical switch using devices having an EO effect wherein an electrode voltage application device applies voltage for switching optical switch devices based on switching data when judging that an elapsed time from when the switching data has started to be output from a path switching instruction device is shorter than a predetermined counted time threshold and the electrode voltage application device applies voltage for switching based on the switching data only when a switching judgment processing device judges that predetermined switching conditions have been met when judging that the elapsed time has been exceeded and does not apply voltage for switching to the switch devices and sends a switching failure notice to a path switching instruction device from the switching judgment processing device when judging that predetermined switching conditions have not been met.

摘要翻译： 一种多通道光开关的控制系统，其抑制在多通道高度集成的EO-SW中产生泄漏电流以实现稳定操作，即使用具有EO效应的器件的多通道光开关的控制系统，其中电极电压 当判断从开关数据开始到从路径切换指令装置输出的经过时间短于预定计数时间阈值时，应用装置基于切换数据施加用于切换光开关装置的电压，并且电极电压施加装置 仅当切换判断处理装置在判定已经超过经过时间的情况下判断为满足规定的切换条件而不施加用于切换到切换装置的电压的情况下，基于切换数据进行切换的电压，并将切换故障通知发送到 来自切换判断的路径切换指令装置 在判定未满足规定的切换条件的情况下进行处理。

公开(公告)号：US20070171505A1

公开(公告)日：2007-07-26

申请号：US11443114

申请日：2006-05-31

申请人： Masaji Noguchi ,  Tomohiro Ueno ,  Goji Nakagawa ,  Yutaka Kai

发明人： Masaji Noguchi ,  Tomohiro Ueno ,  Goji Nakagawa ,  Yutaka Kai

IPC分类号： G02F1/11

CPC分类号： G02F1/113

摘要： An AOTF control apparatus, which applies an RF signal to an AOTF to allow a selected light to pass through the AOTF, includes: a first calculating unit calculating a relationship between a frequency of the RF signal and a wavelength of the selected light based on a frequency of the RF signal that allows a reference light to pass through the AOTF; and a second calculating unit calculating a relationship between a power of the RF signal and an attenuation amount of the selected light based on an input/output power of the reference signal at the input/output of the AOTF.

摘要翻译： AOTF控制装置，其向AOTF施加RF信号以允许所选择的光通过AOTF，包括：第一计算单元，基于所述第一计算单元计算所述RF信号的频率与所选择的光的波长之间的关系 允许参考光通过AOTF的RF信号的频率; 以及第二计算单元，基于在AOTF的输入/输出处的参考信号的输入/输出功率来计算RF信号的功率与所选择的光的衰减量之间的关系。

公开(公告)号：US20060221432A1

公开(公告)日：2006-10-05

申请号：US11384288

申请日：2006-03-21

申请人： Yutaka Kai ,  Setsuo Yoshida

发明人： Yutaka Kai ,  Setsuo Yoshida

IPC分类号： G02F1/29

CPC分类号： G02F1/29 ,  G02F1/31 ,  G02F2001/311

摘要： An optical switch which minimizes losses in the power of output light while enabling deflection of light within a range of comparatively large deflection angles used for setting switching among output ports. The optical switch is configured to have a first light deflection element deflecting the input light at an angle appropriate to a position of an designated port with an applied first drive voltage; and a second light deflection element finely adjusting a deflection angle of the light output from the first deflection element to the designated port with an applied second drive voltage such that power of light output from the designated port becomes maximum.

摘要翻译： 一种光开关，其使输出光功率的损耗最小化，同时能够在用于设置输出端口之间的切换的较大偏转角的范围内偏转光。 光开关被配置为具有第一光偏转元件，其以适合于施加的第一驱动电压的指定端口的位置的角度偏转输入光; 以及第二光偏转元件，利用所施加的第二驱动电压，将从所述第一偏转元件输出的光的偏转角度精细地调整到所述指定端口，使得从所述指定端口输出的光的功率变得最大。

公开(公告)号：US08582984B2

公开(公告)日：2013-11-12

申请号：US12621130

申请日：2009-11-18

申请人： Yutaka Kai

发明人： Yutaka Kai

IPC分类号： H04B10/00 ,  H04J14/02 ,  H04B10/572

CPC分类号： H04B10/572 ,  H03K5/01 ,  H03K5/08 ,  H04B10/508

摘要： A waveform controller includes a monitor configured to monitor a waveform of an output pulse obtained by the response of a responsive element to a driving signal supplied thereto and a driving waveform shaper configured to shape a waveform of the driving signal based on a monitoring result obtained by the monitor.

摘要翻译： 波形控制器包括：监视器，被配置为监视由响应元件响应于所提供的驱动信号而获得的输出脉冲的波形;以及驱动波形整形器，其被配置为基于由 监视器。

公开(公告)号：US08275258B2

公开(公告)日：2012-09-25

申请号：US12461267

申请日：2009-08-05

申请人： Yutaka Kai ,  Yasuhiko Aoki

发明人： Yutaka Kai ,  Yasuhiko Aoki

IPC分类号： H04B10/08

CPC分类号： H04J3/1694 ,  H04B10/272 ,  H04J3/22 ,  H04Q11/0067 ,  H04Q2011/0064

摘要： An optical communication base station which receives an upstream optical signal having an upstream bit rate specific to each one of a plurality of lower order communication units from a corresponding one of the plurality of lower order communication units, and which transmits a downstream optical signal having a downstream bit rate specific to each one of the plurality of lower order communication units to a designated one of the plurality of lower order communication units, includes; a first optical signal conversion unit which changes the bit rate of the upstream optical signal and thereby converts the upstream optical signal into a fixed bit-rate inter-station optical signal; and a second optical signal conversion unit which converts the inter-station optical signal into the downstream optical signal by changing the bit rate of the inter-station optical signal according to the designated one of the plurality of lower order communication units.

摘要翻译： 一种光通信基站，其从多个下位通信单元中的相应一个接收具有对多个低阶通信单元中的每一个特定的上行比特率的上行光信号，并且发送具有 所述多个低阶通信单元中的每一个的特定下行比特率包括： 第一光信号转换单元，其改变上游光信号的比特率，从而将上游光信号转换为固定比特率站间光信号; 以及第二光信号转换单元，通过根据多个低阶通信单元中指定的一个来改变站间光信号的比特率，将站间光信号转换成下行光信号。