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1. 发明授权

US08488696B2 Receiver device, communication system and receiving method 有权
标题翻译：接收设备，通信系统和接收方式
公开(公告)号：US08488696B2
公开(公告)日：2013-07-16
申请号：US12994365
申请日：2009-06-19
申请人： Koichi Ishihara , Takayuki Kobayashi , Riichi Kudo , Yasushi Takatori , Munehiro Matsui , Masato Mizoguchi , Akihide Sano , Eiichi Yamada , Etsushi Yamazaki , Yutaka Miyamoto , Hideyuki Nosaka
发明人： Koichi Ishihara , Takayuki Kobayashi , Riichi Kudo , Yasushi Takatori , Munehiro Matsui , Masato Mizoguchi , Akihide Sano , Eiichi Yamada , Etsushi Yamazaki , Yutaka Miyamoto , Hideyuki Nosaka
IPC分类号： H04K1/10
CPC分类号： H04B7/084 , H04B7/0845 , H04L2027/0067
摘要： A receiver device receives a signal inputted to one or a plurality of ports as a plurality of received signals, and includes: a phase offset estimating unit that, on the basis of a unique word of each signal block contained in said received signal, estimates the phase offset, and a phase offset compensating unit that, on the basis of a phase offset estimated by said phase offset estimating unit, compensates the phase offset; the receiver device uses a known signal component (unique word) contained in a frequency-domain equalized signal to compensate the phase offset, whereby it compensates complex phase offset fluctuation, and estimates the phase offset of a signal obtained at each port.
摘要翻译：接收机装置接收输入到一个或多个端口的信号作为多个接收信号，并且包括：相位偏移估计单元，其基于包含在所述接收信号中的每个信号块的唯一字，估计出以及相位偏移补偿单元，其基于由所述相位偏移估计单元估计的相位偏移补偿相位偏移; 接收机设备使用包含在频域均衡信号中的已知信号分量（唯一字）来补偿相位偏移，从而补偿复相位偏移波动，并且估计在每个端口处获得的信号的相位偏移。

2. 发明申请

US20120315043A1 TRANSMISSION METHOD, RECEPTION METHOD, TRANSMITTER APPARATUS, AND RECEIVER DEVICE 有权
标题翻译：传输方法，接收方法，发射机设备和接收机设备
公开(公告)号：US20120315043A1
公开(公告)日：2012-12-13
申请号：US13576902
申请日：2011-02-03
申请人： Tadao Nakagawa , Etsushi Yamazaki , Koichi Ishihara , Takayuki Kobayashi , Riichi Kudo , Yasushi Takatori , Munehiro Matsui , Yutaka Miyamoto , Akihide Sano , Eiji Yoshida , Masato Mizoguchi
发明人： Tadao Nakagawa , Etsushi Yamazaki , Koichi Ishihara , Takayuki Kobayashi , Riichi Kudo , Yasushi Takatori , Munehiro Matsui , Yutaka Miyamoto , Akihide Sano , Eiji Yoshida , Masato Mizoguchi
IPC分类号： H04J14/06
CPC分类号： H04B10/5053 , G02F1/0136 , H04B10/532 , H04B10/60 , H04J14/06
摘要： A polarization state of a transmission signal can be changed at a high speed based on a symbol-rate By switching a first switch, a second switch, and a third switch with time, one of an X-polarized wave_I-signal as a Y-polarized wave_I-signal, a signal caused by performing logical inversion for an X-polarized wave_I-signal, an X-polarized wave_Q-signal and a signal caused by logical inversion for an X-polarized wave_Q-signal is input to a second modulator. Further, by switching the first switch, the second switch and the third switch with time, the second modulator is input one of the X-polarized wave_I-signal as the Y-polarized wave_Q-signal, the X-polarized wave_I-signal, the signal caused by performing logical inversion for the X-polarized wave_I-signal, the X-polarized wave_Q-signal and the signal caused by performing logical inversion for the X-polarized wave_Q-signal. Thereby, a polarization state of a transmission signal can be changed at high speed based on a symbol-rate speed.
摘要翻译：传输信号的极化状态可以基于符号速率高速度地改变。通过随时间切换第一开关，第二开关和第三开关，X极化波I_信号之一作为Y轴，通过对X偏振波_I信号执行逻辑反相，X偏振波Q_信号和由X偏振波Q_信号的逻辑反相引起的信号引起的信号被输入到第二调制器。此外，通过随时间切换第一开关，第二开关和第三开关，第二调制器输入X极化波I_信号之一作为Y偏振波Q_信号，X偏振波I信号，通过对X偏振波_I信号进行逻辑反转而引起的信号，X偏振波Q信号和由X偏振波Q信号执行逻辑反相引起的信号。因此，可以基于符号速率速度高速地改变发送信号的偏振状态。

3. 发明授权

US07995930B2 Optical receiver using Mach-Zehnder interferometer 有权
标题翻译：光接收机采用马赫 - 曾德干涉仪
公开(公告)号：US07995930B2
公开(公告)日：2011-08-09
申请号：US12092031
申请日：2006-05-19
申请人： Mikio Yoneyama , Fumiaki Saitou , Shigeru Ono , Yosuke Takeuchi , Kazushige Yonenaga , Shoichiro Kuwahara , Eiji Yoshida , Yutaka Miyamoto , Hiroto Kawakami
发明人： Mikio Yoneyama , Fumiaki Saitou , Shigeru Ono , Yosuke Takeuchi , Kazushige Yonenaga , Shoichiro Kuwahara , Eiji Yoshida , Yutaka Miyamoto , Hiroto Kawakami
IPC分类号： H04B10/06
CPC分类号： H04L27/2071 , G02F1/0327 , H04B10/677 , H04L27/223
摘要： The present invention relates to an optical receiver, in which the transmittance of a Mach-Zehnder interferometer can be locked at a normal operation point in a simple structure and control. A transmittance detecting circuit and a minute modulation signal detecting circuit are provided in parallel after a balanced optical receiver, and a switch is selectively connectable either a minute modulation signal detecting circuit and a transmittance detecting circuit. In the initial stage of frequency pull-in, the switch is set to connect the transmittance detecting circuit to the synchronous detection circuit. If the transmittance detecting circuit detects that the transmittance of the Mach-Zehnder interferometer at the carrier frequency becomes a desired transmittance, the connection of the switch is switched from the transmittance detecting circuit to the minute modulation signal detecting circuit.
摘要翻译：光接收机技术领域本发明涉及一种光接收机，其中可以以简单的结构和控制将马赫 - 曾德干涉仪的透射率锁定在正常操作点。在平衡光接收器之后并联设置透射检测电路和微调信号检测电路，并且开关可选择性地连接微调制信号检测电路和透射检测电路。在频率拉入的初始阶段，开关被设置为将透射检测电路连接到同步检测电路。如果透射检测电路检测到载波频率下的马赫 - 策德尔干涉仪的透射率变为期望的透射率，则将开关的连接从透射检测电路切换到微调制信号检测电路。

4. 发明授权

US07920793B2 Inline repeater and optical fiber communication system 有权
标题翻译：内联中继器和光纤通信系统
公开(公告)号：US07920793B2
公开(公告)日：2011-04-05
申请号：US10581327
申请日：2005-06-17
申请人： Hiroji Masuda , Kenji Sato , Yutaka Miyamoto
发明人： Hiroji Masuda , Kenji Sato , Yutaka Miyamoto
IPC分类号： H04J14/02
CPC分类号： H01S3/302 , H01S3/0078 , H01S3/06758 , H01S3/06766 , H01S3/0677 , H01S3/094011 , H01S3/0941 , H01S3/1608 , H01S2301/02 , H01S2301/04 , H04B10/294
摘要： An inline repeater that uses a forward-pumped DRA that can use a pumping light source such as an FBG pumping light source and a fiber laser, which are the most commonly used, and an optical fiber communication system are realized. The optical fiber communication system comprises silica fiber as a gain medium for Raman amplification to amplify a signal light; a pumping light source that emits a pumping light that co-propagates through the silica fiber in the same direction as the signal light; and a multiplexer disposed between the silica fiber and the pumping light source that multiplexes the signal light and the pumping light, with the multiplexer being provided with a means to multiplex the signal light input thereto having a wavelength longer than the zero-dispersion wavelength of the silica fiber and the pumping light emitted from the pumping light source, and the pumping light source being equipped with a means to emit pumping light, with the longest wavelength of the pumping light being shorter than the shortest wavelength of the signal light by a frequency difference on the low-frequency side of 13.7 to 30 THz.
摘要翻译：实现了使用可以使用最常用的FBG泵浦光源和光纤激光器等泵浦光源的前向泵浦DRA和光纤通信系统的在线中继器。光纤通信系统包括石英光纤作为用于拉曼放大的增益介质，用于放大信号光; 泵浦光源，其发射与所述信号光沿相同方向共同传播通过所述石英光纤的泵浦光; 以及多路复用器，其布置在二极管光纤和泵浦光源之间，多路复用信号光和泵浦光，多路复用器设置有多路复用输入到其上的信号光，该波长比该波长的零色散波长长二氧化硅纤维和从泵浦光源发射的泵浦光，并且泵浦光源装备有发射泵浦光的装置，其中泵浦光的最长波长比信号光的最短波长短于频率差在13.7到30 THz的低频侧。

5. 发明申请

US20110002689A1 OPTICAL OFDM RECEIVER, OPTICAL TRANSMISSION SYSTEM, SUBCARRIER SEPARATION CIRCUIT, AND SUBCARRIER SEPARATION METHOD 有权
标题翻译：光纤OFDM接收机，光传输系统，子载波分离电路和子载波分离方法
公开(公告)号：US20110002689A1
公开(公告)日：2011-01-06
申请号：US12865827
申请日：2009-02-20
申请人： Akihide Sano , Eiichi Yamada , Takayuki Kobayashi , Koichi Ishihara , Yutaka Miyamoto , Riichi Kudo
发明人： Akihide Sano , Eiichi Yamada , Takayuki Kobayashi , Koichi Ishihara , Yutaka Miyamoto , Riichi Kudo
IPC分类号： H04J14/04 , H04B10/06 , H04J14/06
CPC分类号： H04B10/69 , H04L25/0305 , H04L25/03159 , H04L27/2647 , H04L27/2697
摘要： A high-performance optical OFDM receiver is realized. A subcarrier separation circuit receives an optical OFDM signal consisting of two subcarriers A and B and separates a subcarrier component, signal light and first local oscillator light are input to the subcarrier separation circuit, the subcarrier separation circuit converts the signal light and the first local oscillator into a baseband electrical signal, the subcarrier separation circuit converts the baseband electrical signal into a digital signal, the subcarrier separation circuit shifts the frequency of the converted digital signal so that a center frequency of the subcarrier A becomes zero, and the subcarrier separation circuit adds a frequency shifted signal to a signal obtained by delaying the frequency shifted signal by ½ of a symbol time to separate a component of the subcarrier A.
摘要翻译：实现了高性能的光OFDM接收机。子载波分离电路接收由两个子载波A和B组成的光OFDM信号，并将子载波分量，信号光和第一本地振荡光分别输入到子载波分离电路，子载波分离电路将信号光和第一本机振荡器子载波分离电路将基带电信号转换为数字信号，副载波分离电路将转换的数字信号的频率移位，使副载波A的中心频率为零，副载波分离电路相加频移信号到通过将频移信号延迟1/2符号时间的1/2来获得的信号，以分离副载波A的分量。

6. 发明申请

US20090162061A1 OPTICAL TRANSMISSION SYSTEM AND METHOD 有权
标题翻译：光传输系统和方法
公开(公告)号：US20090162061A1
公开(公告)日：2009-06-25
申请号：US12096551
申请日：2006-12-21
申请人： Yoshiaki Kisaka , Shigeki Aisawa , Yutaka Miyamoto , Masahito Tomizawa , Yasuyuki Endoh , Kazuhito Takei
发明人： Yoshiaki Kisaka , Shigeki Aisawa , Yutaka Miyamoto , Masahito Tomizawa , Yasuyuki Endoh , Kazuhito Takei
IPC分类号： H04J14/00 , H04J3/00 , H04J14/02
CPC分类号： H04J3/1652 , H04J3/07 , H04J2203/0085
摘要： An optical transmission system for performing frequency synchronization even with a client signal with low frequency accuracy, and for transmitting thereof by accommodating/multiplexing without causing a bit slip. A new overhead is added to the entire client signal, and the signal including the new overhead being stuffed is transmitted in conjunction with a plurality of stuffing bits as an optical signal wherein a data storing bit for a negative stuffing, a stuffing information notification bit, and a stuff bits inserting bit for a positive stuffing in the payload are defined in plurality as stuffing bits for adjusting clock frequencies of the client signal in this new overhead.
摘要翻译：一种光传输系统，用于即使使用低频精度的客户端信号进行频率同步，也可以通过容纳/多路复用而不产生位滑动进行发送。在整个客户端信号中增加新的开销，并且包括填充的新开销的信号与多个填充位一起作为光信号发送，其中，用于负填充的数据存储位，填充信息通知位，并且用于在有效载荷中的正填充的填充比特插入位被定义为多个作为填充位，用于在该新开销中调整客户端信号的时钟频率。

7. 发明授权

US07542631B2 Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：US07542631B2
公开(公告)日：2009-06-02
申请号：US12081733
申请日：2008-04-21
申请人： Kazushige Yonenaga , Yutaka Miyamoto , Akihiko Matsuura
发明人： Kazushige Yonenaga , Yutaka Miyamoto , Akihiko Matsuura
IPC分类号： G02F1/295 , H04B10/04
CPC分类号： H04B10/5167 , H04B10/505 , H04B10/5055
摘要： An optical transmission system which provides bandwidth restricted optical signal comprises an input terminal (10) for accepting an electrical binary signal, an amplifier (12) for amplifying said electrical binary signal to the level requested for operating an electrical-optical converter (16) such as a Mach Zehnder light modulator, a bandwidth restriction means (14) which is for instance a low pass filter for restricting bandwidth of said electrical binary signal, and an electrical-optical conversion means (16) such as a Mach Zehnder light modulator for converting electrical signal to optical signal. Because of the location of the low pass filter (14) between an output of the amplifier (12) and the Mach Zehnder light modulator (16), the amplifier (12) may operate in saturation region to provide high level output signal enough for operating the Mach Zehnder light modulator, and a signal shaped by the low pass filter (14) is applied to the Mach Zehnder light modulator (16) with excellent waveform. The invention is useful for long distance, large capacity and low cost optical transmission system.
摘要翻译：提供带宽限制光信号的光传输系统包括用于接受电二进制信号的输入端（10），用于将所述电二进制信号放大到用于操作电 - 光转换器（16）所请求的电平的放大器（12）作为马赫曾德尔光调制器，带宽限制装置（14），例如用于限制所述电二进制信号的带宽的低通滤波器，以及诸如马赫曾德尔光调制器的电 - 光转换装置（16），用于转换电信号到光信号。由于放大器（12）的输出端与马赫曾德尔光调制器（16）之间的低通滤波器（14）的位置，放大器（12）可以在饱和区域中工作，以提供足够的高电平输出信号马赫曾德尔光调制器和由低通滤波器（14）成形的信号以优异的波形施加到马赫曾德尔光调制器（16）。本发明对于长距离，大容量和低成本的光传输系统是有用的。

8. 发明授权

US07536108B2 High precision chromatic dispersion measuring method and automatic dispersion compensating optical link system that uses this method 有权
标题翻译：高精度色散测量方法和使用该方法的自动色散补偿光链路系统
公开(公告)号：US07536108B2
公开(公告)日：2009-05-19
申请号：US10185486
申请日：2002-06-26
申请人： Akira Hirano , Yutaka Miyamoto , Masahito Tomizawa , Shoichiro Kuwahara , Hiroshi Takahashi , Yasuyuki Inoue
发明人： Akira Hirano , Yutaka Miyamoto , Masahito Tomizawa , Shoichiro Kuwahara , Hiroshi Takahashi , Yasuyuki Inoue
IPC分类号： H04B10/12
CPC分类号： H04B10/25133 , H04B10/25137
摘要： The present invention relates to an automatic dispersion compensating optical link system. Carrier suppressed RZ encoded optical signals generated using carrier suppressing means and binary NRZ code or partial response code, or carrier suppressed clock signals generated using carrier suppressing means and clock signals are transmitted on an optical transmission line. Two bands of the carrier suppressed RZ encoded optical signals or carrier suppressed clock signals transmitted on the optical transmission line are each divided into bands and are received. Phase information of the respective basebands is extracted from the binary NRZ code components or partial response code components or clock signals in each band and the relative phase difference thereof is detected. The chromatic dispersion value of the optical transmission line is then calculated from the relative phase difference.
摘要翻译：本发明涉及自动色散补偿光链路系统。载波抑制使用载波抑制装置产生的RZ编码光信号和二进制NRZ码或部分响应码，或者使用载波抑制装置和时钟信号产生的载波抑制时钟信号在光传输线路上传输。载波抑制RZ编码的光信号的两个频带或在光传输线路上传输的载波抑制时钟信号各自被分成频带并被接收。从每个频带中的二进制NRZ码分量或部分响应码分量或时钟信号中提取各个基带的相位信息，并检测其相对相位差。然后从相对相位差计算光传输线的色散值。

9. 发明授权

US07424230B2 Digital transmission system 有权
标题翻译：数字传输系统
公开(公告)号：US07424230B2
公开(公告)日：2008-09-09
申请号：US10308588
申请日：2002-12-03
申请人： Masahito Tomizawa , Akira Hirano , Yoshiaki Kisaka , Yutaka Miyamoto
发明人： Masahito Tomizawa , Akira Hirano , Yoshiaki Kisaka , Yutaka Miyamoto
IPC分类号： H04B10/06 , H04L25/03 , H03M13/00
CPC分类号： H04L25/062
摘要： This digital transmission system is provided with a transmitting apparatus that transmits digital data signals and a receiving apparatus that receives the digital data signals transmitted over a transmission path, compares the signals with a predetermined threshold value, and performs decision reproduction. The receiving apparatus is formed by: decision circuits that receive the input of reception signals, discriminate between the respective reception signals using a plurality of threshold values, and output decision results; and a selection circuit that, based on the decision results output from the decision circuit, selects one decision result from one threshold value from among the decision results from each of the plurality of threshold values, and outputs the selected decision result. As a result, the receiving apparatus is able to individually select which decision result to use from which threshold value.
摘要翻译：该数字传输系统设置有发送数字数据信号的发送装置和接收通过传输路径发送的数字数据信号的接收装置，将该信号与规定的阈值进行比较，进行判定再现。接收装置由以下部分构成：接收接收信号的输入的判定电路，使用多个阈值对各个接收信号进行识别，并输出判定结果; 以及选择电路，其基于从所述判定电路输出的判定结果，从所述多个阈值中的每一个的判定结果中从一个阈值中选择一个判定结果，并输出所选择的判定结果。结果，接收装置能够从哪个阈值单独地选择使用哪个判定结果。

10. 发明授权

US07383817B2 Injector 有权
标题翻译：注射器
公开(公告)号：US07383817B2
公开(公告)日：2008-06-10
申请号：US11713015
申请日：2007-03-02
申请人： Yasuhiro Horiuchi , Yutaka Miyamoto
发明人： Yasuhiro Horiuchi , Yutaka Miyamoto
IPC分类号： F02M57/02 , F02M57/00
CPC分类号： F02M57/025 , F02M47/025 , F02M57/026 , F02M63/0029 , F02M63/0047
摘要： An injector includes a boosting mechanism and a nozzle. The boosting mechanism boosts fuel, and the nozzle injects and supplies the fuel boosted by the boosting mechanism. The boosting mechanism includes a tubular piston and a column piston. The tubular piston has a bore, which extends through the tubular piston in a direction of a longitudinal axis of the tubular piston. The column piston is loosely received by the tubular piston and has an end portion, which projects from the tubular piston, and which is engaged with the tubular piston. The tubular piston is slidably received by a first cylinder. The end portion of the column piston is slidably received by a second cylinder, which is provided generally coaxially to the first cylinder, and which has a diameter different from that of the first cylinder.
摘要翻译：喷射器包括升压机构和喷嘴。增压机构增加燃料，并且喷嘴喷射并提供由增压机构增压的燃料。增压机构包括管状活塞和柱塞活塞。管状活塞具有孔，其沿管状活塞的纵向轴线的方向延伸穿过管状活塞。柱形活塞被管状活塞松动地容纳，并且具有从管状活塞突出并与管状活塞接合的端部。管状活塞由第一气缸可滑动地容纳。柱式活塞的端部可滑动地被第二圆柱体容纳，该第二圆筒与第一圆柱体大致同轴地设置，并且具有不同于第一圆柱体的直径。

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