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31. 发明申请

US20060251364A1 Optical fiber cable 有权
标题翻译：光纤电缆
公开(公告)号：US20060251364A1
公开(公告)日：2006-11-09
申请号：US11480857
申请日：2006-07-06
申请人： Takafumi Terahara , Rainer Hainberger , Takeshi Hoshida
发明人： Takafumi Terahara , Rainer Hainberger , Takeshi Hoshida
IPC分类号： G02B6/44
CPC分类号： H04B10/2916 , G02B6/02252 , G02B6/02266 , G02B6/262 , G02B6/29377 , H01S3/302 , H04B10/25253 , H04B2210/003
摘要： An optical fiber cable including first, second and third optical fibers connected together so that light traveling through the cable travels through the first optical fiber, then through the second optical fiber and then through the third optical fiber. The second optical fiber has a negative dispersion value. The first and third optical fibers each have a positive dispersion value. The cable optically connects together two optical repeater stations, or an optical repeater station and an end station. Lengths of the first, second and third optical fibers are set so that loss in the first, second and third optical fibers of light transmitted through the first, second and third optical fibers is compensated by Raman amplification occurring in the first, second and third optical fibers.
摘要翻译：一种光纤电缆，包括连接在一起的第一，第二和第三光纤，使得穿过电缆的光线穿过第一光纤，然后穿过第二光纤，然后穿过第三光纤。第二光纤具有负色散值。第一和第三光纤各自具有正色散值。电缆将两个光中继站或光中继站和终端站光学连接在一起。设置第一，第二和第三光纤的长度，使得透过第一，第二和第三光纤的光的第一，第二和第三光纤中的损耗由在第一，第二和第三光纤中的第一，第二和第三光纤纤维。

32. 发明申请

US20060222377A1 Optical receiver corresponding to differential M-phase shift keying system 有权
标题翻译：对应于差分M相移键控系统的光接收机
公开(公告)号：US20060222377A1
公开(公告)日：2006-10-05
申请号：US11391414
申请日：2006-03-29
申请人： Takeshi Hoshida , Nobuhiro Fukushima
发明人： Takeshi Hoshida , Nobuhiro Fukushima
IPC分类号： H04B10/06
CPC分类号： H04L27/22 , H04B10/60
摘要： A small size and low cost optical receiving apparatus, which can stably demodulate the signal, lights in accordance with the differential M-phase shift keying (DMPSK) system. An optical receiving apparatus comprises a light branching unit for branching the differential M-phase shift keying signal beam into four signal light beams, a delay adjusting unit giving a delay time difference of one symbol between a first signal light beam and a second signal light beam and between a third signal light beam and a fourth signal light beam, a demodulating unit for outputting a least two demodulated light signals through respective interferences between the first signal light beam and the second signal light beam, and between the third signal light beam and the fourth signal light beam on one plane which is not parallel to any signal light beam, and at least two optical detectors for converting at least two light signals into electrical signals.
摘要翻译：可以稳定地解调信号的小尺寸和低成本的光接收装置根据差分M相移键控（DMPSK）系统点亮。光接收装置包括用于将差分M相移键控信号光束分支为四个信号光束的光分支单元，延迟调整单元，其给出第一信号光束和第二信号光束之间的一个符号的延迟时间差并且在第三信号光束和第四信号光束之间，解调单元，用于通过第一信号光束和第二信号光束之间的相应干扰以及第三信号光束和第二信号光束之间的相应干扰输出至少两个解调光信号; 在不平行于任何信号光束的一个平面上的第四信号光束，以及用于将至少两个光信号转换为电信号的至少两个光学检测器。

33. 发明申请

US20060193638A1 Wavelength dispersion compensation design method and a system thereof 有权
标题翻译：波长色散补偿设计方法及其系统
公开(公告)号：US20060193638A1
公开(公告)日：2006-08-31
申请号：US11316961
申请日：2005-12-27
申请人： Yuichi Akiyama , Takafumi Terahara , Takeshi Hoshida , Hisao Nakashima
发明人： Yuichi Akiyama , Takafumi Terahara , Takeshi Hoshida , Hisao Nakashima
IPC分类号： H04B10/12
CPC分类号： H04B10/2513
摘要： The present invention discloses a design method of wavelength dispersion compensation of a desired link that is extracted from an optical network, the link including two or more spans, and two or more nodes (N1, N4) that are equipped with an add/drop function, as shown in FIG. 2. All residual dispersion ranges of paths that reach corresponding nodes are adjusted to fall within predetermined tolerable residual dispersion ranges that are set up for all the paths of the link by adjusting wavelength dispersion compensators provided to each of the spans.
摘要翻译：本发明公开了一种从光网络提取的期望链路的波长色散补偿的设计方法，包括两个或多个跨度的链路，以及两个或更多个节点（N 1，N 4），其配备有添加/ drop功能，如图3所示。通过调整提供给每个跨度的波长色散补偿器，到达对应节点的路径的所有残余色散范围被调整为落在通过链路的所有路径设置的预定的可容忍残余色散范围内。

34. 发明申请

US20060171718A1 Optical receiver and optical reception method compatible with differential quadrature phase shift keying 失效
公开(公告)号：US20060171718A1
公开(公告)日：2006-08-03
申请号：US11117429
申请日：2005-04-29
申请人： Takeshi Hoshida
发明人： Takeshi Hoshida
IPC分类号： H04B10/00
CPC分类号： H04B10/61 , H04B10/532
摘要： In an optical receiver according to the present invention, an input signal light subjected to the differential quadrature phase shift keying (DQPSK) is incident on a PANDA type fiber in a linearly polarized state by 45°, so that a delay time difference corresponding to one symbol is generated between orthogonal polarization components in the DQPSK signal light, and then, the signal light is branched by a half mirror into two, to be sent to first and second paths respectively, thereby giving, by a ¼ wave plate disposed on one of the paths, a relative birefringent amount difference of π/2 between the lights propagated through the respective paths. Then, each of the lights propagated through the first and second paths is separated into two orthogonal polarization components by a polarization beam splitter, and the respective polarization components are received by a differential reception circuit so that in-phase components and quadrature components in the DQPSK signal are demodulated. Thus, a small sized and low cost optical receiver capable of stably demodulating the DQPSK signal is provided.

35. 发明授权

US07035543B1 Method and system for demultiplexing non-intensity modulated wavelength division multiplexed (WDM) signals 失效
标题翻译：用于解复用非强度调制波分复用（WDM）信号的方法和系统
公开(公告)号：US07035543B1
公开(公告)日：2006-04-25
申请号：US09853316
申请日：2001-05-10
申请人： Takeshi Hoshida , Hiroshi Onaka
发明人： Takeshi Hoshida , Hiroshi Onaka
IPC分类号： H04J14/02
CPC分类号： H04B10/69 , H04B10/677 , H04J14/02
摘要： A method and system for demultiplexing non-intensity modulated wavelength division multiplexed (WDM) signals includes receiving a WDM signal having a plurality of non-intensity modulated optical information signals. A plurality of the non-intensity modulated optical information signals are converted to intensity modulated signals while the plurality of non-intensity modulated optical information signals are multiplexed in at least a portion of the WDM signal.
摘要翻译：用于解复用非强度调制波分复用（WDM）信号的方法和系统包括接收具有多个非强度调制光信息信号的WDM信号。多个非强度调制光信息信号被转换为强度调制信号，而多个非强度调制光信息信号在WDM信号的至少一部分被复用。

36. 发明申请

US20050117908A1 Coupler-based optical cross-connect having a regeneration module 有权
标题翻译：具有再生模块的基于耦合器的光交叉连接
公开(公告)号：US20050117908A1
公开(公告)日：2005-06-02
申请号：US10726157
申请日：2003-12-02
申请人： Gerardo Castanon , Remi Pecqueur , Takeshi Hoshida
发明人： Gerardo Castanon , Remi Pecqueur , Takeshi Hoshida
IPC分类号： H04B10/02 , H04J14/00 , H04J14/02 , H04Q11/00 , G02B6/26 , G02B6/42
CPC分类号： H04Q11/0005 , H04Q2011/0015
摘要： An optical cross-connect includes multiple input ports that each receive an optical input signal and multiple output ports that each output an optical output signal. The optical cross-connect also includes a distributing amplifier associated with each input port that generates multiple copies of the input signal received at the associated input port. Furthermore, the optical cross-connect includes multiple filter units that receive a copy of one or more of the input signals from one or more of the distributing amplifiers and forward traffic in selected channels of one or more of the received copies. In addition, the optical cross-connect includes a combining amplifier associated with each output port. Each combining amplifier receives the traffic in one or more of the channels forwarded by one or more of the filter units and combines the received traffic into an output signal to be output from the associated output port. The optical cross-connect further includes one or more regeneration modules that each regenerate the traffic in one or more channels of one or more of the input signals.
摘要翻译：光交叉连接包括多个输入端口，每个输入端口接收光输入信号和多个输出端口，每个输出端口输出光输出信号。光交叉连接还包括与每个输入端口相关联的分配放大器，其产生在相关联的输入端口处接收的输入信号的多个副本。此外，光交叉连接包括多个滤波器单元，其接收来自一个或多个分配放大器的一个或多个输入信号的副本以及一个或多个所接收副本的所选频道中的前向业务。此外，光交叉连接包括与每个输出端口相关联的组合放大器。每个组合放大器接收由一个或多个滤波器单元转发的一个或多个信道中的业务，并将接收到的业务组合成输出信号以从相关联的输出端口输出。光学交叉连接还包括一个或多个再生模块，每个再生模块在一个或多个输入信号的一个或多个通道中重新生成流量。

37. 发明授权

US08649689B2 Digital coherent receiving apparatus 有权
标题翻译：数字相干接收装置
公开(公告)号：US08649689B2
公开(公告)日：2014-02-11
申请号：US12821061
申请日：2010-06-22
申请人： Nobukazu Koizumi , Takeshi Hoshida , Takahito Tanimura , Hisao Nakashima , Koji Nakamuta , Noriyasu Nakayama
发明人： Nobukazu Koizumi , Takeshi Hoshida , Takahito Tanimura , Hisao Nakashima , Koji Nakamuta , Noriyasu Nakayama
IPC分类号： H04B10/00
CPC分类号： H04B10/616 , H03J7/26 , H04B10/60 , H04B10/611 , H04B10/614 , H04B10/6165 , H04L7/0335 , H04L27/0014 , H04L27/223 , H04L27/2276 , H04L2027/0016 , H04L2027/0067
摘要： A digital coherent receiving apparatus includes a first oscillator for outputting a local light signal of a fixed frequency, a hybrid unit mixing the local light signal with a light signal received by a receiver, a second oscillator for outputting a sampling signal of a sampling frequency, a converter for converting the mixed light signal into digital signal synchronizing with the sampling signal, a waveform adjuster for adjusting a waveform distortion of the converted digital signal, a phase adjustor for adjusting a phase of the digital signal adjusted by the waveform adjustor, a demodulator for demodulating the digital signal adjusted by the phase adjuster, and a phase detector for detecting a phase of the digital signal adjusted by the phase adjuster, and a control signal output unit for outputting a frequency control signal on the basis of the detected phase signal to the second oscillator.
摘要翻译：数字相干接收装置包括用于输出固定频率的本地光信号的第一振荡器，将本地光信号与由接收机接收的光信号混合的混合单元，用于输出采样频率的采样信号的第二振荡器，用于将混合光信号转换为与采样信号同步的数字信号的转换器，用于调整转换的数字信号的波形失真的波形调节器，用于调整由波形调节器调节的数字信号的相位的相位调节器，解调器用于解调由相位调节器调节的数字信号，以及相位检测器，用于检测由相位调节器调节的数字信号的相位;以及控制信号输出单元，用于根据检测到的相位信号将频率控制信号输出到第二个振荡器。

38. 发明授权

US08649678B2 Frame processing apparatus, optical receiving apparatus, optical transceiving apparatus, optical transmission system, and frame processing controlling method 有权
标题翻译：帧处理装置，光接收装置，光收发装置，光传输系统和帧处理控制方法
公开(公告)号：US08649678B2
公开(公告)日：2014-02-11
申请号：US12488745
申请日：2009-06-22
申请人： Takeshi Hoshida , Katsumi Fukumitsu
发明人： Takeshi Hoshida , Katsumi Fukumitsu
IPC分类号： H04B10/08
CPC分类号： H04J14/0227 , H04J14/0246 , H04J14/0279 , H04J14/0283 , H04L1/0036 , H04L1/0053 , H04L1/203 , H04L43/0847
摘要： The technique for improving the efficiency in use of power resources while maintaining the received signal quality that satisfies the requirement during a system operation is disclosed. The frame processing apparatus disclosed in the present case includes: a frame processing unit which performs frame processing on an input signal in the designated error processing mode; and a controlling unit which receives the monitoring result relating to the signal quality of the input signal and performs switching control of the designation of the above error processing mode in the frame processing unit based on the received monitoring result.
摘要翻译：公开了一种提高电力资源使用效率的技术，同时保持在系统操作期间满足要求的接收信号质量。在本例中公开的帧处理装置包括：帧处理部，其以指定的误差处理模式对输入信号进行帧处理; 以及控制单元，其接收与输入信号的信号质量相关的监视结果，并且基于接收的监视结果执行帧处理单元中的上述错误处理模式的指定的切换控制。

39. 发明授权

US08594508B2 Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：US08594508B2
公开(公告)日：2013-11-26
申请号：US13137024
申请日：2011-07-15
申请人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura , Toru Katagiri , Shoichiro Oda
发明人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura , Toru Katagiri , Shoichiro Oda
IPC分类号： H04B10/00
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.
摘要翻译：一种光传输系统，其中在光发射机中，根据在一个符号时间内要发送的比特数的数量，具有特定模式集的检测比特，根据发送信号已被编码的发送信号预设格式和根据发送信号调制光产生的光信号被发送到传输线。在光接收机中，通过使用包含在接收信号中的检测位来检测和补偿接收数据的逻辑反转或位交换，执行经补偿的接收信号的解码处理。结果，当在一个符号时间内能够发送多位信息的光信号被传送时，通过可靠地补偿由调制格式或多路复用系统引起的接收数据中的错误，可以实现优异的传输特性光信号。

40. 发明授权

US08526828B2 Optical transmitter and optical transmitter unit 有权
标题翻译：光发射机和光发射机单元
公开(公告)号：US08526828B2
公开(公告)日：2013-09-03
申请号：US13267909
申请日：2011-10-07
申请人： Hisao Nakashima , Takeshi Hoshida
发明人： Hisao Nakashima , Takeshi Hoshida
IPC分类号： H04B10/04
CPC分类号： H04B10/505 , H04B10/572
摘要： The optical transmitter includes a light source; a signal processor; an optical modulator that modulates output light from the light source in accordance with a transmitting signal subjected to digital signal processing in the signal processor and outputs the modulated light as a light signal to a transmission path; and a control circuit that controls a carrier-wave frequency of the light signal output from the optical modulator, the signal processor including a mapping circuit that maps the transmitting signal to electric-field information according to a modulating scheme, and a phase rotating circuit that provides a phase rotation having a constant cycle to an electric-field phase of the electric-field information to which the mapping circuit maps the transmitting signal, the control circuit controlling the cycle of the phase rotation that the phase rotating circuit provides and thereby controlling the carrier-wave frequency of the light signal output from the optical modulator.
摘要翻译：光发射机包括光源; 一个信号处理器; 光调制器，其根据在信号处理器中进行数字信号处理的发送信号调制来自光源的输出光，并将调制光作为光信号输出到传输路径; 以及控制电路，其控制从所述光调制器输出的光信号的载波频率，所述信号处理器包括映射电路，所述映射电路根据调制方案将所述发送信号映射到电场信息;以及相位旋转电路，向映射电路映射发送信号的电场信息的电场相位提供恒定周期的相位旋转，控制电路控制相位旋转电路提供的相位旋转的周期，从而控制从光调制器输出的光信号的载波频率。

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