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1. 发明申请

US20080217511A1 OPTICAL FEEDBACK CONTROL UNIT, OPTICAL COMMUNICATION SYSTEM, FEEDBACK CONTROL METHOD, AND RECORDING MEDIUM FOR RECORDING PROGRAM 有权
标题翻译：光学反馈控制单元，光通信系统，反馈控制方法和记录程序的记录介质
公开(公告)号：US20080217511A1
公开(公告)日：2008-09-11
申请号：US12044650
申请日：2008-03-07
申请人： TAKEFUMI OGUMA , Hiroki Rikiyama , Koji Asahi
发明人： TAKEFUMI OGUMA , Hiroki Rikiyama , Koji Asahi
IPC分类号： G01J1/32
CPC分类号： H04J14/0221 , H04B10/0793
摘要： The present invention is to provide an optical feedback control unit for determining an optical output by a feedback control, an optical communication system, a feedback control method, and a recording medium for recording a program. According to the present invention, even when used in the system to which a plurality of nodes are connected, the unstable system may become stable by the proper feedback control without being affected by the optical level change according to the polarized variation or the loss variation. In The optical feedback control unit according to the present invention, an optical output control portion determines an optical output by a feedback control using the result detected by a detection portion, a dead zone not performing the feedback control is set for the difference between the detected value from the detection portion and the control target value, and when the difference between the detected value and the control target value is within the dead zone, a width of the dead zone is set to be wider than that of the dead zone when the difference between the detected value and the control target value is out of the dead zone.
摘要翻译：本发明提供一种光反馈控制单元，用于通过反馈控制，光通信系统，反馈控制方法和用于记录程序的记录介质来确定光输出。根据本发明，即使在多个节点连接的系统中使用时，通过适当的反馈控制，不稳定系统也可能变得稳定，而不受根据偏振变化或损耗变化的光学电平变化的影响。 In根据本发明的光学反馈控制单元，光输出控制部分使用由检测部分检测到的结果通过反馈控制来确定光输出，对所检测到的差异设置不执行反馈控制的死区值，并且当检测值与控制目标值之间的差值在死区内时，当死区的宽度被设定为比死区宽时在检测值和控制目标值之间是在死区之外。

2. 发明授权

US07649162B2 Optical feedback control unit, optical communication system, feedback control method, and recording medium for recording program 有权
标题翻译：光反馈控制单元，光通信系统，反馈控制方法以及用于记录程序的记录介质
公开(公告)号：US07649162B2
公开(公告)日：2010-01-19
申请号：US12044650
申请日：2008-03-07
申请人： Takefumi Oguma , Hiroki Rikiyama , Koji Asahi
发明人： Takefumi Oguma , Hiroki Rikiyama , Koji Asahi
IPC分类号： G01J1/32
CPC分类号： H04J14/0221 , H04B10/0793
摘要： The present invention is to provide an optical feedback control unit for determining an optical output by a feedback control, an optical communication system, a feedback control method, and a recording medium for recording a program. According to the present invention, even when used in the system to which a plurality of nodes are connected, the unstable system may become stable by the proper feedback control without being affected by the optical level change according to the polarized variation or the loss variation. In The optical feedback control unit according to the present invention, an optical output control portion determines an optical output by a feedback control using the result detected by a detection portion, a dead zone not performing the feedback control is set for the difference between the detected value from the detection portion and the control target value, and when the difference between the detected value and the control target value is within the dead zone, a width of the dead zone is set to be wider than that of the dead zone when the difference between the detected value and the control target value is out of the dead zone.
摘要翻译：本发明提供一种光反馈控制单元，用于通过反馈控制，光通信系统，反馈控制方法和用于记录程序的记录介质来确定光输出。根据本发明，即使在多个节点连接的系统中使用时，通过适当的反馈控制，不稳定系统也可能变得稳定，而不受根据偏振变化或损耗变化的光学电平变化的影响。 In根据本发明的光学反馈控制单元，光输出控制部分使用由检测部分检测到的结果通过反馈控制来确定光输出，对所检测到的差异设置不执行反馈控制的死区值，并且当检测值与控制目标值之间的差值在死区内时，当死区的宽度被设定为比死区宽时在检测值和控制目标值之间是在死区之外。

3. 发明授权

US5339308A Signal size judging apparatus 失效
标题翻译：信号尺寸判断装置
公开(公告)号：US5339308A
公开(公告)日：1994-08-16
申请号：US19656
申请日：1993-02-19
申请人： Hiroki Rikiyama
发明人： Hiroki Rikiyama
IPC分类号： H04J3/00 , H04J3/06 , H04J3/16 , H04Q11/04 , H04J3/12 , H04J3/22
CPC分类号： H04J3/1611 , H04J2203/0089
摘要： A signal size judging apparatus is disclosed that comprises of a separating circuit, a plurality of judging circuit and a connection status deciding circuit. The separating circuit receives the multiplexed signal and separating it into its constituent basic signals for each channel. The judging circuits are provided to correspond to each of the basic signals for each channel except the foremost channel and is supplied with the basic signals for each of the channels from the separating circuit and judges whether or not each basic signal is connected to the basic signal for the immediately preceding channel. The connection status deciding circuit decides as to how the basic signals for all of the channel are connected on the bases of the possible results of judgment performed by the judging circuit.
摘要翻译：公开了一种包括分离电路，多个判断电路和连接状态判定电路的信号尺寸判断装置。分离电路接收多路复用信号并将其分离成其每个通道的组成基本信号。提供判断电路以对应于除了最前面的信道之外的每个信道的每个基本信号，并且从分离电路向每个信道提供基本信号，并且判断每个基本信号是否连接到基本信号用于紧接在前的频道。连接状态判定电路根据判断电路的可能判定结果来决定全部通道的基本信号的连接状态。

4. 发明授权

US5313500A Frame synchronization circuit comprising a series-to-parallel converter 失效
标题翻译：帧同步电路包括串并联转换器
公开(公告)号：US5313500A
公开(公告)日：1994-05-17
申请号：US735732
申请日：1991-07-25
申请人： Hiroki Rikiyama
发明人： Hiroki Rikiyama
IPC分类号： H04B14/04 , H04J3/06 , H04L7/08 , H04L7/00
CPC分类号： H04J3/0608
摘要： A series-to-parallel converter (26) converts an input code sequence to first to N-th code sequences with input clocks frequency divided by N into circuit clocks, based on which a frame pulse is generated. Among concurrency detectors (41) which are supplied with the frame pulse in common and with detection signals produced when first to N-th synchronization patterns are detected in the respective code sequences and are for producing nonconcurrent results when the detection signals are nonconcurrent with the frame pulse, a particular detector produces an earliest concurrent result to disable other detectors when the frame pulse is concurrent with one of the detection signals that is supplied thereto. These other detectors are enabled when the particular detector produces a nonconcurrent result due to collapse of frame synchronism. Through an AND gate (43), the nonconcurrent results inhibit the circuit clocks.
摘要翻译：串并联转换器（26）将输入代码序列转换为第一至第N代码序列，其中输入时钟频率除以N为电路时钟，基于此产生帧脉冲。在并行检测器（41）中，共同地提供帧脉冲，并且在各个代码序列中检测出第一至第N同步模式时产生的检测信号，并且当检测信号与帧不同时产生非并发结果脉冲，当帧脉冲与提供给其的检测信号之一并发时，特定检测器产生最早的并发结果以禁用其他检测器。当特定检测器由于帧同步的崩溃而产生非并发结果时，这些其他检测器被使能。通过与门（43），非并发结果阻止电路时钟。

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