专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

US20130336654A1 OPTICAL RECEIVER, POLARIZATION DEMULTIPLEXER, AND OPTICAL RECEIVING METHOD 有权
标题翻译：光接收器，极化解复用器和光接收方法
公开(公告)号：US20130336654A1
公开(公告)日：2013-12-19
申请号：US14002266
申请日：2012-02-28
申请人： Manabu Arikawa , Daisaku Ogasahara , Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
发明人： Manabu Arikawa , Daisaku Ogasahara , Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
IPC分类号： H04J14/06
CPC分类号： H04J14/06 , H04B10/614 , H04B10/6166
摘要： In order to appropriately demultiplex the polarization multiplexed BPSK signal without using a training sequence and decreasing the resistance to a frequency offset, an optical receiver includes a coherent optical detection unit receiving an optical signal in which BPSK modulated carrier waves are polarization-multiplexed, performing coherent detection by mixing the received optical signal with local light, and outputting first electrical signals corresponding to the carrier waves; a butterfly FIR filter receiving the first electrical signals and extracting second electrical signals corresponding to each of the carrier waves from the first electrical signals; and a coefficient control unit for calculating a sum of respective phases of the second electrical signals output from the butterfly FIR filter, adaptively controlling tap coefficients of the butterfly FIR filter so that the calculated phase sum may become equal to 0 or π, and outputting tap coefficients after being controlled to the butterfly FIR filter.
摘要翻译：为了适当地解复用偏振复用的BPSK信号而不使用训练序列并降低对频偏的电阻，光接收机包括相干光检测单元，其接收光信号，其中BPSK调制载波被偏振复用，执行相干通过将接收的光信号与本地光混合来检测，并输出与载波对应的第一电信号; 蝶形FIR滤波器，接收第一电信号并从第一电信号中提取对应于每个载波的第二电信号; 以及系数控制单元，用于计算从蝶形FIR滤波器输出的第二电信号的各相的和，自适应地控制蝶形FIR滤波器的抽头系数，使得计算出的相位和可以变为等于0或pi，并输出抽头系数被控制到蝴蝶FIR滤波器。

12. 发明申请

US20130336647A1 OPTICAL COMMUNICATION SYSTEM WITH MONITOR FUNCTIONS AND MONITORING METHOD THEREFOR 有权
标题翻译：具有监控功能的光通信系统及其监控方法
公开(公告)号：US20130336647A1
公开(公告)日：2013-12-19
申请号：US14001226
申请日：2011-02-28
申请人： Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi , Manabu Arikawa
发明人： Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi , Manabu Arikawa
IPC分类号： H04B10/07
CPC分类号： H04B10/07 , H04B10/0775
摘要： Since it is difficult to fast, simply monitor impairments of received signals with higher receiver sensitivity, a monitoring method for an optical communication system according to an exemplary aspect of the invention includes the steps of emitting lightwave signals to be modulated according to a data, forming dips at transitions between temporally consecutive groups of n symbols of the lightwave signals, wherein the dips are formed at each of (n−1) first transitions of the group, no dip is formed at the n-th transition on the lightwave signals, receiving the lightwave signals, extracting frequency components characterized by the numerical value n from received lightwave signals, and monitoring the received lightwave signals by using the frequency components.
摘要翻译：由于难以快速，只需监视接收灵敏度较高的接收信号的损伤，根据本发明的示例性方面的光通信系统的监视方法包括以下步骤：根据数据发射待调制的光波信号，形成在光波信号的n个符号的时间上连续的组之间的转变处下降，其中在组的第（n-1）个第一跃迁中的每一个处形成倾斜，在光波信号的第n次跃迁上不形成倾角，接收光波信号，从接收到的光波信号中提取由数值n表征的频率分量，以及通过使用频率分量来监视所接收的光波信号。

13. 发明申请

US20120281981A1 METHOD AND APPARATUS FOR DETECTING CHROMATIC DISPERSION, AND METHOD AND APPARATUS FOR COMPENSATING CHROMATIC DISPERSION 有权
标题翻译：用于检测色度分布的方法和装置，以及用于增强色度分布的方法和装置
公开(公告)号：US20120281981A1
公开(公告)日：2012-11-08
申请号：US13520487
申请日：2011-01-05
申请人： Emmanuel Le Taillandier De Gabory , Manabu Arikawa , Kiyoshi Fukuchi
发明人： Emmanuel Le Taillandier De Gabory , Manabu Arikawa , Kiyoshi Fukuchi
IPC分类号： H04B10/08
CPC分类号： H04B10/0775 , G01M11/338 , H04B10/25133 , H04B2210/074
摘要： A method of monitoring chromatic dispersion when transmitting an optical signal includes: applying, to an optical signal in which the symbol rate is f, a dip in optical intensity for every n symbols by means of pseudo-RZ modulation where n is an integer equal to or greater than 2, and transmitting the optical signal to which dips have been applied to a transmission path; receiving the optical signal that is transmitted in by the transmission path and detecting the intensity of a frequency component of k*f/n from the received signal where k is an integer equal to or greater than 1; and based on the detected intensity, generating a monitor signal that represents the chromatic dispersion amount.
摘要翻译：一种在发送光信号时监视色散的方法包括：通过伪RZ调制将n个符号的符号速率为f的光信号应用于每n个符号的光强度，其中n是等于或大于2，并且将已经施加了下降的光信号发送到传输路径; 接收由传输路径发送的光信号，并从接收信号中检测k * f / n的频率分量的强度，其中k是等于或大于1的整数; 并且基于检测到的强度，产生表示色散量的监视信号。

14. 发明申请

US20140003555A1 PHASE COMPENSATION RECEIVER 有权
标题翻译：相位补偿接收器
公开(公告)号：US20140003555A1
公开(公告)日：2014-01-02
申请号：US14005238
申请日：2011-11-15
申请人： Masahiro Shigihara , Kiyoshi Fukuchi
发明人： Masahiro Shigihara , Kiyoshi Fukuchi
IPC分类号： H04L7/00
CPC分类号： H04L7/0016 , H04B10/6165 , H04L27/223 , H04L27/2276 , H04L2027/0048 , H04L2027/0055 , H04L2027/0067 , H04L2027/0095
摘要： A phase excursion compensation circuit of a phase modulation signal demodulator detects occurrence of a slip of a received signal from a change in a phase compensation amount that is formed into the received signal by a phase excursion compensation unit, and corrects the phase compensation amount of the received signal after the slip is generated.
摘要翻译：相位调制信号解调器的相位偏移补偿电路通过相位偏移补偿单元从形成为接收信号的相位补偿量的变化中检测接收信号的滑移的发生，并且校正相位补偿量产生滑差后的接收信号。

15. 发明申请

US20130216240A1 COHERENT LIGHT RECEIVING DEVICE, SYSTEM, AND METHOD 审中-公开
标题翻译：相干光接收装置，系统和方法
公开(公告)号：US20130216240A1
公开(公告)日：2013-08-22
申请号：US13882707
申请日：2011-10-06
申请人： Kiyoshi Fukuchi
发明人： Kiyoshi Fukuchi
IPC分类号： H04B10/61
CPC分类号： H04B10/6163 , H04B10/6161 , H04B10/6165
摘要： A coherent light receiving device includes a coherent receiving unit which mixes a received optical signal with local light and performs optical coherent detection to output a digital signal, a wavelength dispersion compensation unit which compensates for waveform distortion in the digital signal and outputs a digital signal after compensation, and a frequency difference detection unit which detects the frequency difference between the received optical signal and local light and notifies the wavelength dispersion compensation unit of the frequency difference, wherein the wavelength dispersion compensation unit performs compensation using a transfer function which is based on the frequency difference notified from the frequency difference detection unit and represents waveform distortion due to wavelength dispersion.
摘要翻译：相干光接收装置包括相干接收单元，其将接收到的光信号与本地光混合并执行光相干检测以输出数字信号;波长色散补偿单元，其补偿数字信号中的波形失真，并在数字信号之后输出数字信号补偿和频率差检测单元，其检测所接收的光信号和局部光之间的频率差，并将波频散布补偿单元通知该频差，其中，所述波长色散补偿单元使用基于从频率差检测单元通知的频率差异，并且表示由于波长色散引起的波形失真。

16. 发明授权

US08472812B2 Optical communication system, optical communication method and optical communication apparatus 有权
标题翻译：光通信系统，光通信方式和光通信装置
公开(公告)号：US08472812B2
公开(公告)日：2013-06-25
申请号：US12918730
申请日：2009-02-18
申请人： Satomi Shioiri , Toshiharu Ito , Kiyoshi Fukuchi
发明人： Satomi Shioiri , Toshiharu Ito , Kiyoshi Fukuchi
IPC分类号： H04B10/04
CPC分类号： H04B10/5053 , H04B10/5561 , H04B10/677
摘要： Transmission-side communication apparatus 100 using a DQPSK (differential quadrature phase-shift keying) scheme is provided with: optical carrier generation section 102 which generates an optical carrier the frequency of which switches among a plurality of different frequencies within one symbol period; and modulation section 103 with which DQPSK-modulates the optical carrier generated by the optical carrier generation means in accordance with a modulation signal at an interval of the symbol period. There are provided: single delay interference section 121 which receives an optical signal obtained by DQPSK-modulating an optical carrier the frequency of which switches among a plurality of different frequencies within one symbol period and outputs an output light obtained by causing the optical signal 104 and a delay optical signal thereof to interfere with each other; and photoelectric conversion section 124 which converts the output light outputted by the delay interference means to an electric signal.
摘要翻译：使用DQPSK（差分正交相移键控）方式的发送侧通信装置100具有：光载波生成部102，其在一个符号周期内生成频率在多个不同频率之间切换的光载波; 以及调制单元103，按照符号周期的间隔，按照调制信号对由光载波产生单元产生的光载波进行DQPSK调制。提供：单延迟干扰部分121，其接收通过DQPSK调制光载波获得的光信号，该光载波的频率在一个符号周期内的多个不同频率之间切换，并输出通过使光信号104和其延迟光信号彼此干涉; 以及将由延迟干扰装置输出的输出光转换为电信号的光电转换部124。

17. 发明授权

US6097576A Magnetic head 失效
标题翻译：磁头
公开(公告)号：US6097576A
公开(公告)日：2000-08-01
申请号：US383658
申请日：1995-02-02
申请人： Kiyoshi Fukuchi , Fumio Nagase , Yoshiaki Sakai
发明人： Kiyoshi Fukuchi , Fumio Nagase , Yoshiaki Sakai
IPC分类号： G11B5/60 , G11B5/016 , G11B5/10 , G11B5/48 , G11B5/58 , G11B17/32
CPC分类号： G11B5/10 , G11B17/32 , G11B5/48 , G11B5/4806 , G11B5/4886 , G11B5/58 , G11B5/016
摘要： A miniaturized magnetic head which can reduce running torque of a disk driving motor while head-touch and penetration margin of the magnetic head remain effective. The magnetic head comprises a slider which slides on a flexible magnetic disk, a head core, integrally formed with the slider, to perform recording/reproducing of information on/from the flexible magnetic disk, and a groove, having a width of less than 0.4 mm, formed on a sliding surface of the slider, the groove extending in a tangential direction of the rotation of the flexible magnetic disk and reaching from one end of the slider to the other end of the slider.
摘要翻译：一种小型化的磁头可以减小磁盘驱动电动机的运行扭矩，而磁头的头部接触和穿透边缘保持有效。磁头包括在柔性磁盘上滑动的滑块，与滑块一体形成的磁头芯，用于在柔性磁盘上进行信息的记录/再现，以及宽度小于0.4的凹槽 mm，形成在滑块的滑动表面上，凹槽沿着柔性磁盘的旋转的切线方向延伸并且从滑块的一端到达滑块的另一端。

18. 发明授权

US4653762A Fuel tank and fuel feed system for a motorcycle 失效
标题翻译：用于摩托车的燃油箱和燃料供给系统
公开(公告)号：US4653762A
公开(公告)日：1987-03-31
申请号：US806899
申请日：1985-12-09
申请人： Michio Nakamura , Minoru Tsunoda , Hiroshi Murakami , Yuuji Matsui , Noriyasu Matsuhashi , Kiyoshi Fukuchi
发明人： Michio Nakamura , Minoru Tsunoda , Hiroshi Murakami , Yuuji Matsui , Noriyasu Matsuhashi , Kiyoshi Fukuchi
IPC分类号： B60K15/03 , B60K15/06 , B62J35/00
CPC分类号： B62J35/00 , B60K15/03 , B60K15/06
摘要： A motorcycle is provided with first and a second fuel tanks. These tanks are provided with fuel charging ports respectively. Both the fuel tanks are intercommunicated through a communicating pipe. Since the communicating pipe can be shut by a cock, fuel can be charged into both the tanks promptly through both the fuel charging ports. The communicating pipe is provided with a fuel pump actuated by a diaphragm communicated with an intake manifold of an engine. Accordingly, even if one of the fuel tanks is disposed at a location lower than the carburetor, fuel within the fuel tank can be fed to the carburetor via the other fuel tank. The first and the second fuel tanks may be combined to constitute a single fuel tank.
摘要翻译：摩托车配备有第一和第二燃料箱。这些坦克分别设有燃料加注口。两个燃料箱通过连通管相互连通。由于可以通过旋塞关闭连通管，所以可以通过两个燃料加注口将燃料迅速地装入两个罐中。连通管设置有由与发动机的进气歧管连通的隔膜致动的燃料泵。因此，即使其中一个燃料箱设置在低于化油器的位置，燃料箱内的燃料也可以经由另一个燃料箱进入化油器。第一和第二燃料箱可以组合成一个燃料箱。

19. 发明授权

US09686019B2 Coherent optical receiver, device and method for detecting inter-lane skew in coherent optical receiver 有权
公开(公告)号：US09686019B2
公开(公告)日：2017-06-20
申请号：US13995279
申请日：2011-12-16
申请人： Kiyoshi Fukuchi , Junichi Abe , Wakako Yasuda
发明人： Kiyoshi Fukuchi , Junichi Abe , Wakako Yasuda
IPC分类号： H04B10/61
CPC分类号： H04B10/616
摘要： The disclosed coherent optical receiver includes a local light source; a 90-degree hybrid circuit; an optoelectronic converter; an analog-to-digital converter; a skew addition unit; and a FFT operation unit. The 90-degree hybrid circuit makes multiplexed signal light interfere with local light from the local light source, and outputs multiple optical signals separated into a plurality of signal components. The optoelectronic converter detects the optical signal and outputs a detected electrical signal. The analog-to-digital converter digitizes the detected electrical signal and outputs a detected digital signal. The skew addition unit adds to the detected digital signal an additional skew amount whose absolute value is equal to, whose sign is opposite to a skew amount of a difference in propagation delay in each lane connected to each output channel of the 90-degree hybrid circuit. The FFT operation unit performs a fast Fourier transform on the output from the skew addition unit.

20. 发明授权

US09088370B2 Coherent optical receiver, apparatus and method for detecting inter-channel skew in coherent optical receiver 有权
标题翻译：相干光接收机，用于检测相干光接收机中的信道间偏斜的装置和方法
公开(公告)号：US09088370B2
公开(公告)日：2015-07-21
申请号：US14577007
申请日：2014-12-19
申请人： Junichi Abe , Wakako Yasuda , Kiyoshi Fukuchi
发明人： Junichi Abe , Wakako Yasuda , Kiyoshi Fukuchi
IPC分类号： H04B10/00 , H04B10/61
CPC分类号： H04B10/616 , H04B10/0775 , H04B10/6164 , H04B10/6165
摘要： In a coherent optical receiver, sufficient demodulation becomes impossible and consequently receiving performance deteriorates if an inter-channel skew arises, therefore, a coherent optical receiver according to an exemplary aspect of the invention includes a local light source, a 90° hybrid circuit, an optoelectronic converter, an analog to digital converter, and a digital signal processing unit; wherein the 90° hybrid circuit makes multiplexed signal light interfere with local light from the local light source, and outputs a plurality of optical signals separated into a plurality of signal components; the optoelectronic converter detects the optical signals and outputs detected electrical signals; the analog to digital converter quantizes the detected electrical signals and outputs quantized signals; the digital signal processing unit includes a skew compensation unit for compensating a difference in propagation delay between the plurality of signal components, and an FFT operation unit for performing a fast Fourier transform process on the quantized signals; and wherein the difference in propagation delay is calculated on the basis of a plurality of peak values with a central focus on one peak value in the results of performing the fast Fourier transform process.
摘要翻译：在相干光接收机中，如果发生信道间偏斜，则不可能进行足够的解调，因此接收性能恶化，因此，根据本发明的示例性方面的相干光接收机包括本地光源，90°混合电路，光电转换器，模数转换器和数字信号处理单元; 其中所述90°混合电路使多路复用信号光干扰来自所述本地光源的局部光，并且输出分离成多个信号分量的多个光信号; 光电转换器检测光信号并输出检测到的电信号; 模数转换器对检测到的电信号进行量化并输出量化信号; 数字信号处理单元包括用于补偿多个信号分量之间的传播延迟差的偏斜补偿单元和用于对量化信号执行快速傅里叶变换处理的FFT运算单元; 并且其中基于执行快速傅里叶变换处理的结果中的中心聚焦于一个峰值的多个峰值来计算传播延迟的差异。

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