专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US5050176A Direct modulation phase-shift-keying system and method 失效
标题翻译：直接调制相移键控系统及方法
公开(公告)号：US5050176A
公开(公告)日：1991-09-17
申请号：US540284
申请日：1990-06-19
申请人： Takao Naito , Terumi Chikama , Shigeki Watanabe , Tetsuya Kiyonaga , Hiroshi Onaka , Yoshihito Onoda
发明人： Takao Naito , Terumi Chikama , Shigeki Watanabe , Tetsuya Kiyonaga , Hiroshi Onaka , Yoshihito Onoda
IPC分类号： H01S3/10 , H04B10/516 , H04B10/556 , H04B10/61 , H04L27/20 , H04L27/22 , H04L27/227 , H04L27/233
CPC分类号： H04L27/2331 , H04B10/50 , H04B10/504 , H04B10/5561 , H04B10/60 , H04B10/64 , H04L27/2096 , H04L27/223 , H04L27/2276
摘要： A direct modulation PSK system and method, in a coherent optical fiber transmission system, in which an injection current supplied to a laser diode is adapted to be directly varied is disclosed. In this system or method, a modulating current pulse is superposed on a bias current for the laser diode so that a specified phase condition may be satisfied. Thereby, a differential coding circuit and an external modulator being indispensable for a DPSK system become unnecessary and, in addition, the system becomes less susceptible to the influence of wavelength dispersion than the DPSK system and able to reproduce the carrier.

62. 发明授权

US4863706A Process for producing zirconium sols and gels, and process for producing zirconia using the same 失效
标题翻译：锆溶胶和凝胶的制造方法以及使用其制造氧化锆的方法
公开(公告)号：US4863706A
公开(公告)日：1989-09-05
申请号：US118940
申请日：1987-11-10
申请人： Takeo Wada , Hiroshi Onaka , Hideaki Matsuda
发明人： Takeo Wada , Hiroshi Onaka , Hideaki Matsuda
IPC分类号： C01B35/06 , C01B35/10 , C01B35/12 , C01B35/14 , C01G25/00 , C01G25/02 , C04B35/486 , C04B35/624
CPC分类号： C04B35/624 , C01B35/06 , C01B35/10 , C01B35/12 , C01B35/146 , C01G25/006 , C01G25/02 , C04B35/486 , C01P2002/02 , C01P2002/72 , C01P2004/10 , C01P2004/20 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2006/80
摘要： A process for producing acidic boratozirconium chloride sols which comprises: reacting a zirconium compound with a boron compound in molar ratios of B/Zr of 0.3-1.2 together with a compound of a metal M, the metal M being selected from the group consisting of divalent, trivalent, tetravalent and pentavalent metals in molar ratios of M/Zr of about 0.01-1 in water in the presence of chloride ions in molar ratios of Cl/Zr of not less than about 1.The acidic boratozirconium chloride sol may be converted to basic boratozirconium sols by reacting the acidic sol with a basic carbonate compound such as ammonium carbonate.The sols, either acidic or basic, are readily gelled by contact with a dehydration solvent such as methanol or actone.The gel is calcined at relatively low temperatures to provide zirconia which is either very pure or stabilized in varied degrees.
摘要翻译：一种酸性硼酸锆酸盐溶胶的制造方法，其特征在于，使锆化合物与B / Zr的摩尔比为0.3〜1.2的硼化合物与金属M的化合物反应，金属M选自二价，在Cl / Zr摩尔比不小于约1的氯离子存在下，摩尔比为约0.01-1的M / Zr摩尔比为三价，四价和五价金属。酸性硼酸锆氯化物溶胶可以转化为碱性硼酸锆溶胶通过使酸性溶胶与碱式碳酸酯化合物如碳酸铵反应。酸性或碱性溶胶通过与脱水溶剂如甲醇或活性酮接触而容易凝胶化。凝胶在相对较低的温度下煅烧，以提供非常纯净或稳定不同程度的氧化锆。

63. 发明授权

US4816239A Process for producing zirconium sols and gels, and process for producing zirconia using the same 失效
标题翻译：锆溶胶和凝胶的制造方法以及使用其制造氧化锆的方法
公开(公告)号：US4816239A
公开(公告)日：1989-03-28
申请号：US118941
申请日：1987-11-10
申请人： Takeo Wada , Hiroshi Onaka , Hideaki Matsuda
发明人： Takeo Wada , Hiroshi Onaka , Hideaki Matsuda
IPC分类号： C01B35/06 , C01B35/10 , C01B35/12 , C01B35/14 , C01G25/00 , C01G25/02 , C04B35/486 , C04B35/624 , C01B35/00 , C01C1/26
CPC分类号： C04B35/624 , C01B35/06 , C01B35/10 , C01B35/12 , C01B35/146 , C01G25/006 , C01G25/02 , C04B35/486 , C01P2002/02 , C01P2002/72 , C01P2004/10 , C01P2004/20 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2006/80
摘要： A process for producing acidic boratozirconium chloride sols which comprises: reacting a zirconium compound with a boron compound in molar ratios of B/Zr of 0.3-1.2 together with a compound of a metal M other than boron, the metal M being selected from the group consisting of divalent, trivalent, tetravalent and pentavalent metals in molar ratios of M/Zr of about 0.01-1 in water in the presence of chloride ions in molar ratios of Cl/Zr of not less than about 1.The acidic boratozirconium chloride sol may be converted to basic boratozirconium sols by reacting the acidic sol with a basic carbonate compound such as ammonium carbonate.The sols, either acidic or basic, are readily gelled by contact with a dehydration solvent such as methanol or acetone.The gel is calcined at relatively low temperatures to provide zirconia which is either very pure or stabilized in varied degrees.
摘要翻译：一种酸性硼酸锆化合物溶胶的制造方法，其特征在于，使锆化合物与B / Zr的摩尔比为0.3〜1.2的硼化合物与除了硼以外的金属M的化合物反应，金属M选自在氯离子存在下，以Cl / Zr摩尔比不低于约1，摩尔比为约0.01-1的M / Zr的二价，三价，四价和五价金属组成。酸性硼酸锆氯化物溶胶可以通过使酸性溶胶与碱式碳酸酯化合物如碳酸铵反应而转化成碱性硼酸锆溶胶。酸性或碱性的溶胶通过与脱水溶剂如甲醇或丙酮接触而容易凝胶化。凝胶在相对较低的温度下煅烧，以提供非常纯净或稳定不同程度的氧化锆。

64. 发明授权

US08521039B2 Optical communication apparatus and optical add/drop apparatus 失效
公开(公告)号：US08521039B2
公开(公告)日：2013-08-27
申请号：US13091619
申请日：2011-04-21
申请人： Hideyuki Miyata , Hiroshi Onaka
发明人： Hideyuki Miyata , Hiroshi Onaka
IPC分类号： H04B10/00
CPC分类号： H04B10/50575 , G02F2203/20 , H04B10/50595 , H04B10/572 , H04B10/58 , H04J14/0201 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/0276 , H04J14/0283
摘要： An apparatus comprising an optical modulator modulating a light in accordance with a modulation signal and an operating point of the optical modulator, to thereby output a modulated optical signal; and a controller controlling the operating point in accordance with a branched portion of the modulated optical signal and a detected intensity of the modulation signal so that the operating point is kept stable when the detected intensity falls below a predetermined value.

65. 发明申请

US20090297168A1 OPTICAL COMMUNICATION APPARATUS AND OPTICAL ADD/DROP APPARATUS 有权
标题翻译：光通信设备和光学附加设备
公开(公告)号：US20090297168A1
公开(公告)日：2009-12-03
申请号：US12497884
申请日：2009-07-06
申请人： Hideyuki Miyata , Hiroshi Onaka
发明人： Hideyuki Miyata , Hiroshi Onaka
IPC分类号： H04B10/04
CPC分类号： H04B10/50575 , G02F2203/20 , H04B10/50595 , H04B10/572 , H04B10/58 , H04J14/0201 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/0276 , H04J14/0283
摘要： An apparatus comprising an optical modulator modulating a light in accordance with a modulation signal and an operating point of the optical modulator, to thereby output a modulated optical signal; and a controller controlling the operating point in accordance with a branched portion of the modulated optical signal and a detected intensity of the modulation signal so that the operating point is kept stable when the detected intensity falls below a predetermined value.
摘要翻译：一种装置，包括根据调制信号和光调制器的工作点调制光的光调制器，从而输出调制的光信号; 以及控制器，根据调制光信号的分支部分和调制信号的检测强度来控制工作点，使得当检测到的强度低于预定值时，工作点保持稳定。

66. 发明授权

US07471790B2 Encryption method, cryptogram decoding method, encryptor, cryptogram decoder, and communication system 有权
标题翻译：加密方法，密码解码方式，加密方式，密码解码方式和通信方式
公开(公告)号：US07471790B2
公开(公告)日：2008-12-30
申请号：US11439367
申请日：2006-05-24
申请人： Setsuo Yoshida , Osamu Hirota , Hiroshi Onaka
发明人： Setsuo Yoshida , Osamu Hirota , Hiroshi Onaka
IPC分类号： H04L9/28 , H04K1/00
CPC分类号： H04L9/0852 , H04L9/0662 , H04L9/0891 , H04L2209/08
摘要： An encryption technique having a greater encryption strength than conventional mathematical encryption by using classic physical random numbers etc., including a step for modulating one-bit input data into a coded signal by associating it with a discrete value of at least two bits determined by pseudo random numbers and physical random numbers and a step for channel-coding and outputting the coded signal, wherein 1) the coded signal can be demodulated into the input data by the pseudo random number, 2) the number of sets of input data, pseudo random number, and physical random number corresponding to a particular discrete value is equal for two values of the input data, and 3) the number of sets of pseudo random number and physical random number corresponding to respective values of the input data and respective values of the discrete value is equally associated also with any set of them.
摘要翻译：一种通过使用经典的物理随机数等具有比常规数学加密更大的加密强度的加密技术，包括通过将一位输入数据与由伪伪确定的至少两个比特的离散值相关联来将一位输入数据调制成编码信号的步骤随机数和物理随机数，以及用于信道编码和输出编码信号的步骤，其中1）编码信号可以通过伪随机数解调为输入数据，2）输入数据集合的数目，伪随机数对应于特定离散值的数量和物理随机数对于输入数据的两个值是相等的，以及3）与输入数据的各个值对应的伪随机数和物理随机数的集合的数量以及相应的值离散值也与它们的任意集合相同。

67. 发明申请

US20080095543A1 OPTICAL COMMUNICATION APPARATUS AND OPTICAL ADD/DROP APPARATUS 失效
标题翻译：光通信设备和光学附加设备
公开(公告)号：US20080095543A1
公开(公告)日：2008-04-24
申请号：US11953278
申请日：2007-12-10
申请人： Hideyuki Miyata , Hiroshi Onaka
发明人： Hideyuki Miyata , Hiroshi Onaka
IPC分类号： H04B10/04
CPC分类号： H04B10/50575 , G02F2203/20 , H04B10/50595 , H04B10/572 , H04B10/58 , H04J14/0201 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/0276 , H04J14/0283
摘要： An apparatus comprising an optical modulator modulating a light in accordance with a modulation signal and an operating point of the optical modulator, to thereby output a modulated optical signal; and a controller controlling the operating point in accordance with a branched portion of the modulated optical signal and a detected intensity of the modulation signal so that the operating point is kept stable when the detected intensity falls below a predetermined value.
摘要翻译：一种装置，包括根据调制信号和光调制器的工作点调制光的光调制器，从而输出调制的光信号; 以及控制器，根据调制光信号的分支部分和调制信号的检测强度来控制工作点，使得当检测到的强度低于预定值时，工作点保持稳定。

68. 发明授权

US07020399B1 Optical transmission apparatus and method which adjust rise and fall time of signal light to be transmitted 失效
标题翻译：调整要发送的信号光的上升和下降时间的光传输装置和方法
公开(公告)号：US07020399B1
公开(公告)日：2006-03-28
申请号：US09272404
申请日：1999-03-19
申请人： Hideyuki Miyata , Hiroshi Nakamoto , Hiroshi Onaka
发明人： Hideyuki Miyata , Hiroshi Nakamoto , Hiroshi Onaka
IPC分类号： H04B10/00
CPC分类号： H04B10/505 , H04B10/5057 , H04B10/506 , H04B10/508 , H04J14/02
摘要： An optical transmission apparatus and method for changing a rise time (tr) and fall time (tf) of a signal light to be transmitted, to reduce wavelength dispersion characteristics and nonlinear effect of a transmission path. A transmitter includes a trtf adjusting circuit capable of adjusting tr and tf of a modulation signal so that the modulation signal is optimized in accordance with reception characteristics. A modulator then modulates a light with this adjusted modulation signal, and the modulated light is then transmitted to a receiver via a transmission path. Therefore, by transmitting the modulated light having changed tr and tf, the influence of wavelength dispersion characteristics and nonlinear effect of the transmission path can be offset, so that the waveform deterioration of signal light after transmission can be reduced.
摘要翻译：一种光传输装置和方法，用于改变要传输的信号光的上升时间（t SUB）和下降时间（t >f），以减少波长色散特性，以及传输路径的非线性效应。发射机包括能够调制调制信号的调制电路和调谐信号的调制电路，因此调制信号根据接收特性进行优化。然后调制器利用该调整后的调制信号对光进行调制，然后经由传输路径将调制的光发射到接收机。因此，通过发送具有变化的调制光，可以抵消传输路径的波长色散特性和非线性效应的影响，使得波形可以减少传输后的信号光的劣化。

69. 发明申请

US20050207760A1 Method and system for communicating a clock signal over an optical link 失效
公开(公告)号：US20050207760A1
公开(公告)日：2005-09-22
申请号：US11121446
申请日：2005-05-04
申请人： Hiroshi Onaka
发明人： Hiroshi Onaka
IPC分类号： H04J1/00 , H04B10/00 , H04B10/04 , H04B10/06 , H04B10/12 , H04B10/142 , H04B10/152 , H04B10/155 , H04B10/17 , H04J14/08 , H04L7/00
CPC分类号： H04L7/0075 , H04B10/2503 , H04B10/5051 , H04B10/506
摘要： A method and system for communicating a clock signal over an optical link includes receiving a multimodulated optical information signal including non-intensity modulation for a data signal and intensity modulation for a clock signal. The clock signal is recovered based on the intensity modulation of the multimodulated optical information signal. The non-intensity modulation for the data signal is converted to intensity modulation for the data signal. The data signal is recovered from the intensity modulation for the data signal using the clock signal.

70. 发明授权

US06930824B1 Optical amplifier which compensates for dispersion of a WDM optical signal 失效
标题翻译：补偿WDM光信号色散的光放大器
公开(公告)号：US06930824B1
公开(公告)日：2005-08-16
申请号：US09080909
申请日：1998-05-19
申请人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Otsuka
发明人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Otsuka
IPC分类号： G02B6/34 , H04B10/18 , H04J14/02 , H04B10/17 , H01S3/30
CPC分类号： H04J14/0224 , H04B10/25133 , H04B10/2525 , H04B10/25253 , H04B10/255 , H04B10/2563 , H04B2210/252 , H04B2210/254 , H04B2210/258 , H04J14/02
摘要： The invention provides an optical wavelength multiplex transmission method wherein a band in the proximity of a zero dispersion wavelength of an optical fiber is used and optical signals are disposed at efficient channel spacings taking an influence of the band, the wavelength dispersion and the four wave mixing into consideration to realize an optical communication system of an increased capacity which is not influenced by crosstalk by FWM. When optical signals of a plurality of channels having different wavelengths are to be multiplexed and transmitted using an optical fiber, a four wave mixing suppressing guard band of a predetermined bandwidth including the zero-dispersion wavelength λ0 of the optical fiber is set, and signal light waves of the plurality of channels to be multiplexed are arranged on one of the shorter wavelength side and the longer wavelength side outside the guard band.
摘要翻译：本发明提供一种光波长多路复用传输方法，其中使用光纤零色散波长附近的频带，并且将光信号设置在影响频带，波长色散和四波混频的有效信道间隔处考虑到实现不受FWM串扰影响的增加容量的光通信系统。当使用光纤复用并传输具有不同波长的多个信道的光信号时，包括预定带宽的四波混频抑制保护带包括零色散波长λ<0> 设置光纤，并且多路复用的多个信道的信号光波被布置在保护带外部的短波长侧和较长波长侧中的一个上。

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