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1. 发明申请

US20070053650A1 Optical transmission device for controlling optical level of transmission signal in optical transmission system 有权
标题翻译：用于控制光传输系统中传输信号的光级的光传输设备
公开(公告)号：US20070053650A1
公开(公告)日：2007-03-08
申请号：US11343292
申请日：2006-01-31
申请人： Yuji Shimada , Takuji Maeda , Kouji Nekoda , Masanori Kondoh , Taro Asao
发明人： Yuji Shimada , Takuji Maeda , Kouji Nekoda , Masanori Kondoh , Taro Asao
IPC分类号： G02B6/00
CPC分类号： H04B10/564 , G02B6/266 , H04J14/0201 , H04J14/0221
摘要： An optical transmission device includes: an attenuator that attenuates an optical signal before being input into an optical element by a predetermined attenuation amount determined so that a level of an adjustment optical signal input into the optical element falls within a predetermined dynamic range of the optical element; and a controller that adjusts the predetermined attenuation amount so that a level of the optical signal input into the optical element falls within the predetermined dynamic range.
摘要翻译：光传输装置包括：衰减器，其在被输入到光学元件之前衰减光信号的预定衰减量，其被确定为使得输入到光学元件的调节光信号的电平落入光学元件的预定动态范围内 ; 以及控制器，其调整预定衰减量，使得输入到光学元件的光信号的电平落在预定的动态范围内。

2. 发明授权

US07551828B2 Optical transmission device for controlling optical level of transmission signal in optical transmission system 有权
标题翻译：用于控制光传输系统中传输信号的光级的光传输设备
公开(公告)号：US07551828B2
公开(公告)日：2009-06-23
申请号：US11343292
申请日：2006-01-31
申请人： Yuji Shimada , Takuji Maeda , Kouji Nekoda , Masanori Kondoh , Taro Asao
发明人： Yuji Shimada , Takuji Maeda , Kouji Nekoda , Masanori Kondoh , Taro Asao
IPC分类号： G02B6/00 , H04B10/00
CPC分类号： H04B10/564 , G02B6/266 , H04J14/0201 , H04J14/0221
摘要： An optical transmission device includes: an attenuator that attenuates an optical signal before being input into an optical element by a predetermined attenuation amount determined so that a level of an adjustment optical signal input into the optical element falls within a predetermined dynamic range of the optical element; and a controller that adjusts the predetermined attenuation amount so that a level of the optical signal input into the optical element falls within the predetermined dynamic range.
摘要翻译：光传输装置包括：衰减器，其在被输入到光学元件之前衰减光信号的预定衰减量，其被确定为使得输入到光学元件的调节光信号的电平落入光学元件的预定动态范围内 ; 以及控制器，其调整预定衰减量，使得输入到光学元件的光信号的电平落在预定的动态范围内。

3. 发明授权

US07394951B2 Optical signal level control apparatus 有权
标题翻译：光信号电平控制装置
公开(公告)号：US07394951B2
公开(公告)日：2008-07-01
申请号：US10436076
申请日：2003-05-13
申请人： Takuji Maeda , Hiroaki Tomofuji , Yuji Shimada
发明人： Takuji Maeda , Hiroaki Tomofuji , Yuji Shimada
IPC分类号： G02B6/12
CPC分类号： H04B10/2931 , H04J14/0201 , H04J14/0212 , H04J14/0221
摘要： In an optical signal level control apparatus used in a WDM system, the amount of circuitry per wavelength is reduced. Optical power level is detected on the output side of a variable optical attenuator, and the amount of attenuation in the variable optical attenuator is adjusted so that the output level becomes equal to a constant value L1. At this time, if the detected level is lower than a threshold value Th0 or Th-d, it is determined that a signal off condition has occurred, and the amount of attenuation is set to a constant value A1. The amount of attenuation, A1, is chosen to be sufficiently larger than the amount of attenuation used in the output level constant control but small enough to be able to detect the restoration of the signal. When the amount of attenuation is being held at the constant value A1, if the output level is restored to a level higher than the threshold value Th0 or Th1 (Th1
摘要翻译：在WDM系统中使用的光信号电平控制装置中，每波长的电路量减少。在可变光衰减器的输出侧检测到光功率电平，并且调节可变光衰减器中的衰减量，使得输出电平变为等于常数值L1。此时，如果检测到的电平低于阈值Th0或Th-d，则确定已经发生信号关闭状态，并将衰减量设定为常数值A1。衰减量A1被选择为足够大于在输出电平常数控制中使用的衰减量，但足够小以能够检测信号的恢复。当衰减量保持在恒定值A1时，如果输出电平恢复到高于阈值Th0或Th1（Th1

4. 发明申请

US20070217794A1 Method for measuring optical characteristics and system thereof 有权
标题翻译：测量光学特性的方法及其系统
公开(公告)号：US20070217794A1
公开(公告)日：2007-09-20
申请号：US11502535
申请日：2006-08-11
申请人： Takeshi Sakamoto , Kosuke Komaki , Yuji Shimada , Takuji Maeda
发明人： Takeshi Sakamoto , Kosuke Komaki , Yuji Shimada , Takuji Maeda
IPC分类号： H04B10/00
CPC分类号： H04B10/07
摘要： During initial start-up of an optical communication system, an ASE reference span loss is calculated based on transmitting power and received power of ASE light generated by an optical amplifier, and an OSC reference span loss is calculated based on the transmitting power and the received power of OSC light. During normal operation of the optical communication system, a span loss is calculated using the OSC light, and an amount of change in the span loss representing a difference between the span loss and the OSC reference span loss is calculated. A current span loss between a transmitting station and a receiving station is calculated by adding the amount of change in the span loss to the ASE reference span loss.
摘要翻译：在光通信系统的初始启动期间，基于由光放大器产生的ASE光的发射功率和接收功率来计算ASE参考跨度损耗，并且基于发射功率和接收到的功率来计算OSC参考跨度损耗 OSC灯的功率。在光通信系统的正常工作期间，使用OSC灯计算跨度损耗，并且计算表示跨度损耗与OSC参考跨度损耗之间的差异的跨度损耗的变化量。通过将跨度损耗的变化量与ASE参考跨度损耗相加来计算发送站和接收站之间的电流跨度损耗。

5. 发明授权

US07286758B2 Method for switching transmission route, and optical transmission device 有权
标题翻译：切换传输路由的方法和光传输设备
公开(公告)号：US07286758B2
公开(公告)日：2007-10-23
申请号：US11332860
申请日：2006-01-13
申请人： Yuji Shimada , Hiroaki Tomofuji , Takuji Maeda , Takeshi Sakamoto , Ichiro Nakajima
发明人： Yuji Shimada , Hiroaki Tomofuji , Takuji Maeda , Takeshi Sakamoto , Ichiro Nakajima
IPC分类号： H04B10/08 , H04B10/02
CPC分类号： H04B10/07955 , H04B1/745 , H04B10/032 , H04B10/077
摘要： A method for switching a transmission route in an optical network. A regenerator station extracts a main signal, and detects the input level of the main signal. When the input level falls below a threshold, the regenerator station determines that a failure occurs, and stops output of a main signal from the regenerator station, and transmits a control signal indicating occurrence of the failure to a receiver station, which separates the control signal from a main signal transmitted thereto, detects the input level of the main signal at the receiver station, analyzes the separated control signal, and determines whether or not a failure occurs. When the input level of the main signal at the receiver station falls below a threshold, or when the separated control signal indicates occurrence of a failure, the receiver station detects the occurrence of the failure, and switches the transmission route.
摘要翻译：一种在光网络中切换传输路由的方法。再生器站提取主信号，并检测主信号的输入电平。当输入电平低于阈值时，再生器站确定发生故障，并且停止来自再生站的主信号的输出，并将指示故障发生的控制信号发送到接收站，该接收机将控制信号从发送到其的主信号，检测接收站处的主信号的输入电平，分析分离的控制信号，并确定是否发生故障。当接收站的主信号的输入电平低于阈值时，或当分离的控制信号表示发生故障时，接收站检测到故障的发生，并切换传输路由。

6. 发明授权

US07756422B2 Method for measuring optical characteristics and system thereof 有权
标题翻译：测量光学特性的方法及其系统
公开(公告)号：US07756422B2
公开(公告)日：2010-07-13
申请号：US11502535
申请日：2006-08-11
申请人： Takeshi Sakamoto , Kosuke Komaki , Yuji Shimada , Takuji Maeda
发明人： Takeshi Sakamoto , Kosuke Komaki , Yuji Shimada , Takuji Maeda
IPC分类号： H04B10/00
CPC分类号： H04B10/07
摘要： During initial start-up of an optical communication system, an ASE reference span loss is calculated based on transmitting power and received power of ASE light generated by an optical amplifier, and an OSC reference span loss is calculated based on the transmitting power and the received power of OSC light. During normal operation of the optical communication system, a span loss is calculated using the OSC light, and an amount of change in the span loss representing a difference between the span loss and the OSC reference span loss is calculated. A current span loss between a transmitting station and a receiving station is calculated by adding the amount of change in the span loss to the ASE reference span loss.
摘要翻译：在光通信系统的初始启动期间，基于由光放大器产生的ASE光的发射功率和接收功率来计算ASE参考跨度损耗，并且基于发射功率和接收到的功率来计算OSC参考跨度损耗 OSC灯的功率。在光通信系统的正常工作期间，使用OSC灯计算跨度损耗，并且计算表示跨度损耗与OSC参考跨度损耗之间的差异的跨度损耗的变化量。通过将跨度损耗的变化量与ASE参考跨度损耗相加来计算发送站和接收站之间的电流跨度损耗。

7. 发明授权

US07756416B2 Optical communication node and optical network system 失效
标题翻译：光通信节点和光网络系统
公开(公告)号：US07756416B2
公开(公告)日：2010-07-13
申请号：US10437224
申请日：2003-05-14
申请人： Hiroaki Tomofuji , Takuji Maeda , Yuji Shimada
发明人： Hiroaki Tomofuji , Takuji Maeda , Yuji Shimada
IPC分类号： G02F1/00 , H04J14/00
CPC分类号： H04J14/0297 , H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0283 , H04J14/0284 , H04J14/0295
摘要： The present invention relates to prevention of erroneous connection in an optical network and, in particular, it provides an optical communication node having route switching function as well as an optical network system using the same in a wavelength division multiplex (WDM) network system. There is provided an optical communication node that is connected to a specific optical path in an optical network, the optical communication node having: an external network that is placed thereunder; and an interruption part for interrupting connection between the optical network and the external network, wherein the interruption part interrupts the connection until a sequence of changing a route is completed when the route setting of the optical path is changed.
摘要翻译：本发明涉及防止光网络中的错误连接，特别是提供一种具有路由切换功能的光通信节点以及在波分多路复用（WDM）网络系统中使用该光通信节点的光网络系统。提供了一种光通信节点，其连接到光网络中的特定光路，所述光通信节点具有：放置在其下的外部网络; 以及用于中断光网络和外部网络之间的连接的中断部分，其中，当光路的路由设置改变时，中断部分中断连接，直到改变路由的顺序完成。

8. 发明申请

US20060188253A1 Method for switching transmission route, and optical transmission device 有权
标题翻译：切换传输路由的方法和光传输设备
公开(公告)号：US20060188253A1
公开(公告)日：2006-08-24
申请号：US11332860
申请日：2006-01-13
申请人： Yuji Shimada , Hiroaki Tomofuji , Takuji Maeda , Takeshi Sakamoto , Ichiro Nakajima
发明人： Yuji Shimada , Hiroaki Tomofuji , Takuji Maeda , Takeshi Sakamoto , Ichiro Nakajima
IPC分类号： H04B10/08
CPC分类号： H04B10/07955 , H04B1/745 , H04B10/032 , H04B10/077
摘要： A method for switching a transmission route in an optical network. A regenerator station extracts a main signal, and detects the input level of the main signal. When the input level falls below a threshold, the regenerator station determines that a failure occurs, and stops output of a main signal from the regenerator station, and transmits a control signal indicating occurrence of the failure to a receiver station, which separates the control signal from a main signal transmitted thereto, detects the input level of the main signal at the receiver station, analyzes the separated control signal, and determines whether or not a failure occurs. When the input level of the main signal at the receiver station falls below a threshold, or when the separated control signal indicates occurrence of a failure, the receiver station detects the occurrence of the failure, and switches the transmission route.
摘要翻译：一种在光网络中切换传输路由的方法。再生器站提取主信号，并检测主信号的输入电平。当输入电平低于阈值时，再生器站确定发生故障，并且停止来自再生站的主信号的输出，并将指示故障发生的控制信号发送到接收站，该接收机将控制信号从发送到其的主信号，检测接收站处的主信号的输入电平，分析分离的控制信号，并确定是否发生故障。当接收站的主信号的输入电平低于阈值时，或当分离的控制信号表示发生故障时，接收站检测到故障的发生，并切换传输路由。

9. 发明授权

US09261545B2 Capacitance voltage conversion circuit, input apparatus using the same, electronic instrument, and capacitance voltage conversion method 有权
标题翻译：电容电压转换电路，使用该电路的输入装置，电子仪器和电容电压转换方法
公开(公告)号：US09261545B2
公开(公告)日：2016-02-16
申请号：US13367904
申请日：2012-02-07
申请人： Yukihiro Iwamoto , Yuji Shimada
发明人： Yukihiro Iwamoto , Yuji Shimada
IPC分类号： G01R27/26 , H03K17/96
CPC分类号： G06F3/044 , G01R27/2605 , G06F3/0416 , G06F3/047 , H03K17/962
摘要： A capacitance voltage conversion circuit, which converts respective capacitances of a plurality of sensor capacitors into voltages, includes: a plurality of capacitance current conversion circuits disposed in respective correspondence with the sensor capacitors, each capacitance current conversion circuit configured to generate a detection current corresponding to a capacitance of a corresponding sensor capacitor; a current average circuit configured to average a plurality of detection currents, which are respectively generated by the capacitance current conversion circuits, to generate an average current; and a plurality of current voltage conversion circuits disposed in respective correspondence with the sensor capacitors, each current voltage conversion circuit configured to convert a difference current between a corresponding detection current and the average current into a voltage.
摘要翻译：将多个传感器电容器的各个电容转换成电压的电容电压转换电路包括：与传感器电容器分别对应配置的多个电容电流变换电路，各电容电流变换电路构成为产生与相应传感器电容器的电容; 电流平均电路，被配置为平均由电容电流转换电路分别产生的多个检测电流，以产生平均电流; 以及与传感器电容器分别对应地设置的多个电流电压转换电路，每个电流电压转换电路被配置为将相应的检测电流和平均电流之间的差电流转换为电压。

10. 发明授权

US08848738B2 Optical transmission device and optical transmission method 有权
标题翻译：光传输装置及光传输方式
公开(公告)号：US08848738B2
公开(公告)日：2014-09-30
申请号：US12972571
申请日：2010-12-20
申请人： Ayumu Nonaka , Yuji Shimada , Syed Faruk Ahmed
发明人： Ayumu Nonaka , Yuji Shimada , Syed Faruk Ahmed
IPC分类号： H04J14/00 , H04J3/06 , H04J3/16
CPC分类号： H04J3/1652 , H04J3/062 , H04J2203/0089
摘要： There is provided an optical transmission device which includes a determiner, a convertor, and a switch. The determiner determines whether a frame includes a fixed stuff byte area or not when the frame is received from a first network, where the frame includes a payload area for storing client data and the fixed stuff byte area is for storing fixed data. When the determiner determines that the frame includes the fixed stuff byte area, a convertor to convert a fixed stuff byte area into the payload area and a switch switches a clock frequency from a first clock frequency used in the first network to a second clock frequency used in a second network when the frame including the converted fixed stuff byte area is output to the second network on the basis of the clock frequency as a reference.
摘要翻译：提供了一种光传输装置，其包括确定器，转换器和开关。当从第一网络接收到帧时，确定器确定帧是否包括固定填充字节区域，其中帧包括用于存储客户端数据的有效载荷区域，并且固定填充字节区域用于存储固定数据。当确定器确定帧包括固定填充字节区域时，转换器将固定填充字节区域转换为有效负载区域，并且开关将时钟频率从第一网络中使用的第一时钟频率切换到所使用的第二时钟频率在第二网络中，当基于时钟频率将包括转换的固定填充字节区域的帧输出到第二网络作为参考时。

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