专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07903976B2 Optical element integrated module 有权
标题翻译：光学元件集成模块
公开(公告)号：US07903976B2
公开(公告)日：2011-03-08
申请号：US12071379
申请日：2008-02-20
申请人： Hiromi Tsuji , Kozo Fujii , Masatoshi Kagawa
发明人： Hiromi Tsuji , Kozo Fujii , Masatoshi Kagawa
IPC分类号： H04J14/08
CPC分类号： H04J14/08
摘要： In an optical element integrated module, first through n-th optical data signals are externally input to first ports of first through n-th optical circulators and are input to first through n-th optical/optical converters via second ports. The first through n-th optical/optical converters modulate first through n-th optical short pulse trains in accordance with the first through n-th optical data signals. First through n-th modulated optical data signals are input to the second ports of the first through n-th optical circulators and are input to an optical time division multiplexing section. The optical time division multiplexing section generates optical time division multiplexed signals by time division multiplexing the first through n-th modulated optical data signals.
摘要翻译：在光学元件集成模块中，第一至第n光学数据信号被外部输入到第一至第n光循环器的第一端口，并经由第二端口输入到第一至第n个光/光转换器。第一至第n光/光转换器根据第一至第n光数据信号，调制第一至第n光短脉冲串。首先将第n个调制光数据信号输入到第1〜第n光循环器的第2端口，并输入到光时分复用部。光时分复用部通过对第1〜第n调制光数据信号进行时分复用来生成光时分复用信号。

2. 发明申请

US20080260384A1 Optical element integrated module 有权
标题翻译：光学元件集成模块
公开(公告)号：US20080260384A1
公开(公告)日：2008-10-23
申请号：US12071379
申请日：2008-02-20
申请人： Hiromi Tsuji , Kozo Fujii , Masatoshi Kagawa
发明人： Hiromi Tsuji , Kozo Fujii , Masatoshi Kagawa
IPC分类号： H04J14/00
CPC分类号： H04J14/08
摘要： In an optical element integrated module, first through n-th optical data signals are externally input to first ports of first through n-th optical circulators and are input to first through n-th optical/optical converters via second ports. The first through n-th optical/optical converters modulate first through n-th optical short pulse trains in accordance with the first through n-th optical data signals. First through n-th modulated optical data signals are input to the second ports of the first through n-th optical circulators and are input to an optical time division multiplexing section. The optical time division multiplexing section generates optical time division multiplexed signals by time division multiplexing the first through n-th modulated optical data signals.
摘要翻译：在光学元件集成模块中，第一至第n光学数据信号被外部输入到第一至第n光循环器的第一端口，并经由第二端口输入到第一至第n个光/光转换器。第一至第n光/光转换器根据第一至第n光数据信号，调制第一至第n光短脉冲串。首先将第n个调制光数据信号输入到第1〜第n光循环器的第2端口，并输入到光时分复用部。光时分复用部通过对第1〜第n调制光数据信号进行时分复用来生成光时分复用信号。

3. 发明授权

US07630640B2 Bidirectional time division multiplexing optical communication system 失效
标题翻译：双向时分复用光通信系统
公开(公告)号：US07630640B2
公开(公告)日：2009-12-08
申请号：US11433454
申请日：2006-05-15
申请人： Masatoshi Kagawa , Hiromi Tsuji
发明人： Masatoshi Kagawa , Hiromi Tsuji
IPC分类号： H04J14/00 , H04J14/08
CPC分类号： H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04J14/08 , H04L7/0008
摘要： An optical communication system which constructs, at low cost, a network that uses Time Division Multiplexing in at least one direction of the communication. The optical communication system includes an optical multiplexer/demultiplexer that mediates communication between a network unit and a plurality of terminal units. The optical multiplexer/demultiplexer regenerates a synchronization clock from a downstream signal light. In addition, the optical multiplexer/demultiplexer adjusts, using the regenerated synchronization clock, the delay times of a plurality of upstream signal lights received from the terminal units. The network unit and the terminal units do not need to control the timing of the upstream signal lights. Thus, the construction costs of the optical communication system are reduced.
摘要翻译：一种以低成本构建在通信的至少一个方向上使用时分多路复用的网络的光通信系统。光通信系统包括介入网络单元和多个终端单元之间的通信的光复用器/解复用器。光复用器/解复用器从下行信号光再生同步时钟。此外，光复用器/解复用器使用再生的同步时钟调整从终端单元接收的多个上行信号光的延迟时间。网络单元和终端单元不需要控制上行信号灯的定时。因此，光通信系统的建设成本降低。

4. 发明申请

US20060269291A1 Optical communication system 失效
标题翻译：光通信系统
公开(公告)号：US20060269291A1
公开(公告)日：2006-11-30
申请号：US11433454
申请日：2006-05-15
申请人： Masatoshi Kagawa , Hiromi Tsuji
发明人： Masatoshi Kagawa , Hiromi Tsuji
IPC分类号： H04B10/00
CPC分类号： H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04J14/08 , H04L7/0008
摘要： An optical communication system which constructs, at low cost, a network that uses Time Division Multiplexing in at least one direction of the communication. The optical communication system includes an optical multiplexer/demultiplexer that mediates communication between a network unit and a plurality of terminal units. The optical multiplexer/demultiplexer regenerates a synchronization clock from a downstream signal light. In addition, the optical multiplexer/demultiplexer adjusts, using the regenerated synchronization clock, the delay times of a plurality of upstream signal lights received from the terminal units. The network unit and the terminal units do not need to control the timing of the upstream signal lights. Thus, the construction costs of the optical communication system are reduced.
摘要翻译：一种以低成本构建在通信的至少一个方向上使用时分多路复用的网络的光通信系统。光通信系统包括介入网络单元和多个终端单元之间的通信的光复用器/解复用器。光复用器/解复用器从下行信号光再生同步时钟。此外，光复用器/解复用器使用再生的同步时钟调整从终端单元接收的多个上行信号光的延迟时间。网络单元和终端单元不需要控制上行信号灯的定时。因此，光通信系统的建设成本降低。

5. 发明授权

US07957646B2 Optical time division multiplexing transmitter 有权
标题翻译：光时分复用发射机
公开(公告)号：US07957646B2
公开(公告)日：2011-06-07
申请号：US11330265
申请日：2006-01-12
申请人： Masatoshi Kagawa
发明人： Masatoshi Kagawa
IPC分类号： H04B10/04 , H04B10/152 , H04B10/06 , G02F1/01 , G02F1/13
CPC分类号： H04B10/508 , G02B6/29356 , G02B6/29398 , H04J14/08
摘要： The optical time division multiplexer generates a time-division-multiplexed optical signal by time-division-multiplexing optical signals of a plurality of channels, the carrier-wave phases of which are shifted with respect to one another. The circulator guides the multiplexed optical signals split by the optical splitter to the optical interference device and the superimposed light outputted from the optical interference device is guided to the optical intensity detector. The optical interference device extends the pulse width of the multiplexed optical signal to a width equal to or more than the bit interval and superimposes the extended light of an adjacent bit onto the extended light. The optical intensity detector detects the intensity of the superimposed light outputted by the optical interference device. The temperature regulator controls the temperature of the modulator so that the phase difference of the carrier waves constituting the optical signal trains is to be a half wavelength.
摘要翻译：光时分复用器通过对其载波相位彼此相移的多个信道的光信号进行时分复用来产生时分多路复用光信号。循环器将由光分路器分离的复用光信号引导到光干涉装置，并将从光干涉装置输出的叠加光引导到光强度检测器。光干涉装置将复用的光信号的脉冲宽度扩大到等于或大于比特间隔的宽度，并将相邻比特的扩展光叠加到扩展的光上。光强度检测器检测由光学干涉装置输出的叠加光的强度。温度调节器控制调制器的温度，使构成光信号列的载波的相位差为半波长。

6. 发明申请

US20090016712A1 Optical signal quality monitor for a high-bit rate signal 有权
标题翻译：用于高比特率信号的光信号质量监控
公开(公告)号：US20090016712A1
公开(公告)日：2009-01-15
申请号：US12216878
申请日：2008-07-11
申请人： Masatoshi Kagawa
发明人： Masatoshi Kagawa
IPC分类号： H04B10/08 , H04B17/00
CPC分类号： H04B10/07953
摘要： An optical signal quality monitor includes a splitter splitting an input optical signal into two signals; a low-frequency converter converting one split optical signal to a low frequency signal by modulating the optical signal with a frequency offset signal; and an intensity ratio calculator calculating an intensity ratio between the low frequency signal and the other split optical signal, thereby appropriately confirming the quality of a high-bit rate optical signal. The monitor includes plural processing lines, each line including the splitter, the low-frequency converter, and the intensity ratio calculator. At least one line includes an optical noise superimposer superimposing optical noise on the one split signal before inputted to the converter or an optical band-pass filter transmitting the one split signal before inputted to the converter. The monitor includes a polarization state changer changing the polarization state of the input signal before inputted to the splitter.
摘要翻译：光信号质量监视器包括将输入光信号分成两个信号的分离器; 低频转换器，通过用频率偏移信号调制光信号将一个分离的光信号转换成低频信号; 以及强度比计算器，计算低频信号和另一分割光信号之间的强度比，由此适当地确认高比特率光信号的质量。监视器包括多条处理线，每条线包括分路器，低频转换器和强度比计算器。至少一行包括在输入到转换器之前将光噪声叠加在一个分离信号上的光噪声叠加器或在输入到转换器之前传输一个分离信号的光学带通滤波器。监视器包括在输入到分路器之前改变输入信号的偏振状态的偏振状态变换器。

7. 发明申请

US20080080856A1 Device for monitoring the quality of an optical signal by filtering its beat component 有权
标题翻译：通过过滤其拍子组件来监视光信号的质量的装置
公开(公告)号：US20080080856A1
公开(公告)日：2008-04-03
申请号：US11902577
申请日：2007-09-24
申请人： Masatoshi Kagawa
发明人： Masatoshi Kagawa
IPC分类号： H04B10/08 , H04B17/00
CPC分类号： H04B10/07953
摘要： An optical signal quality monitor device includes a local oscillator that generates a local oscillation signal, with which a mixer mixes an input optical signal to output a mixed signal, of which at least one beat component a filter that extracts. An intensity detector detects intensity of the extracted beat component. The monitor device may thus accurately and rapidly monitor the quality of an input optical signal transmitted even at a higher bit rate.
摘要翻译：光信号质量监控装置包括本地振荡器，其产生本地振荡信号，混频器将输入光信号混合以输出混合信号，其中至少一个拍子分量是提取的滤波器。强度检测器检测提取的拍子分量的强度。因此，即使在较高的比特率下，监视器装置可以准确而快速地监视输出光信号的质量。

8. 发明申请

US20070165679A1 System and method for controlling a difference in optical phase and an optical signal transmitter 有权
标题翻译：用于控制光相位差和光信号发射器的系统和方法
公开(公告)号：US20070165679A1
公开(公告)日：2007-07-19
申请号：US11650996
申请日：2007-01-09
申请人： Masatoshi Kagawa
发明人： Masatoshi Kagawa
IPC分类号： H04J3/00 , H04J3/06
CPC分类号： H04J14/083 , H04J14/08
摘要： An optical phase difference control system is provided for controlling a phase difference of a single optical time-division multiplexed signal obtained by multiplexing a plurality of modulated optical signals encoded. The control system includes an interferometer and a low-frequency extractor. The interferometer is used for receiving part of the optical time-division multiplexed signal to split it into first and second signals, giving, between the first and second signals, a phase difference equivalent to one bit of the optical time-division multiplexed signal, and thereafter multiplexing the first and second signals. The low-frequency extractor is used for adding together signals, output from the interferometer, which have the similar intensity every two successive bits, and extracting a low-frequency waveform signal as a signal for controlling the phase difference of the single optical time-division multiplexed signal.
摘要翻译：提供了一种光学相位差控制系统，用于控制通过复用被编码的多个调制光信号而获得的单个光时分复用信号的相位差。控制系统包括干涉仪和低频提取器。干涉仪用于接收光时分多路复用信号的一部分，将其分割成第一和第二信号，在第一和第二信号之间给出等于光时分复用信号的一位的相位差，以及然后对第一和第二信号进行复用。低频提取器用于将干涉仪输出的信号与每两个连续位具有相似强度的信号相加在一起，提取低频波形信号作为控制单个光时分相位差的信号复用信号。

9. 发明授权

US08208819B2 Optical signal generator 有权
标题翻译：光信号发生器
公开(公告)号：US08208819B2
公开(公告)日：2012-06-26
申请号：US12659295
申请日：2010-03-03
申请人： Masatoshi Kagawa , Hitoshi Murai
发明人： Masatoshi Kagawa , Hitoshi Murai
IPC分类号： H04B10/04
CPC分类号： H04B10/5053 , H04J14/06 , H04J14/08
摘要： An optical signal generator includes a splitter, a first modulator, a second modulator, a signal-switching unit and a multiplexer. The splitter splits an optical pulse train into a first pulse train and a second pulse train. The first modulator receives the first pulse train and first data signal, and generates a first modulation signal by performing on-off-keying or phase modulation on the first pulse train based on the strength of the first data signal. The second modulator receives the second pulse train and second data signal, and generates a second modulation signal by performing the on-off-keying or phase modulation on the second pulse train based on the strength of the second data signal. The signal-switching unit delays pulses of the second modulation signal or adjusts a phase of a carrier included in the second modulation signal according to a switching signal. The multiplexer generates an optical modulation signal by multiplexing the first modulation signal and the second modulation signal.
摘要翻译：光信号发生器包括分路器，第一调制器，第二调制器，信号切换单元和多路复用器。分路器将光脉冲串分成第一脉冲串和第二脉冲串。第一调制器接收第一脉冲串和第一数据信号，并且通过基于第一数据信号的强度对第一脉冲串执行开关键控或相位调制来产生第一调制信号。第二调制器接收第二脉冲串和第二数据信号，并且通过基于第二数据信号的强度对第二脉冲串执行开 - 关键或相位调制来产生第二调制信号。信号切换单元延迟第二调制信号的脉冲，或者根据切换信号调整包含在第二调制信号中的载波的相位。复用器通过多路复用第一调制信号和第二调制信号来产生光调制信号。

10. 发明授权

US08165473B2 Optical-time-division-multiplexing differential phase shift keying signal generating apparatus 有权
标题翻译：光分时复用微分相移键控信号发生装置
公开(公告)号：US08165473B2
公开(公告)日：2012-04-24
申请号：US12458562
申请日：2009-07-16
申请人： Masatoshi Kagawa
发明人： Masatoshi Kagawa
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/5053 , H04B10/5561 , H04J14/08
摘要： An apparatus detecting an optical carrier phase difference between adjacent optical pulses structuring an OTDM-DPSK signal, by generally-used optical and electrical elements, is provided. An OTDM-DPSK signal generating section has an optical splitter, a first phase modulator, a second phase modulator, an optical coupler, and a monitor signal branching device, and generates and outputs an OTDM-DPSK signal and a monitor signal. An optical carrier phase difference detecting section has an optical carrier interferometer, and an interference signal detecting section including a optical-to-electrical converter and a peak detection circuit. The monitor signal is inputted to the optical carrier interferometer, and an interference monitor signal is outputted. The interference monitor signal is inputted to the optical-to-electrical converter, and an electrical interference monitor signal is outputted. The electrical interference monitor signal is inputted to the peak detection circuit, and an optical carrier phase difference detection signal is generated and outputted.
摘要翻译：提供了一种通过通常使用的光学和电气元件来检测构成OTDM-DPSK信号的相邻光脉冲之间的光载波相位差的装置。 OTDM-DPSK信号产生部分具有光分路器，第一相位调制器，第二相位调制器，光耦合器和监视信号分支器件，并且产生并输出OTDM-DPSK信号和监视信号。光载波相位差检测部分具有光载波干涉仪和包括光电转换器和峰值检测电路的干涉信号检测部分。监视信号被输入到光载波干涉仪，并输出干扰监视信号。干扰监视信号被输入到光电转换器，并且输出电干扰监视信号。电干扰监视信号被输入到峰值检测电路，产生并输出光载波相位差检测信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式