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1.发明公开公开(公告)号：US20240031045A1
公开(公告)日：2024-01-25
申请号：US18028389
申请日：2020-09-29
IPC分类号： H04B17/364 , H04B17/10
CPC分类号： H04B17/364 , H04B17/104
摘要： One aspect of the present invention is an information processing system including a computing machine installed in a computing machine base, a first transmission/reception device connected to the computing machine, a second transmission/reception device installed in a user base used by a user, a device connected to the second transmission/reception device, and a delay control device configured to measure a delay amount generated between the first transmission/reception device and the second transmission/reception device and control the measured delay amount.
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2.发明公开公开(公告)号：US20230291471A1
公开(公告)日：2023-09-14
申请号：US18011573
申请日：2020-06-23
发明人： Yohei KATAYAMA , Kazumitsu SAKAMOTO , Kento YOSHIZAWA , Hiroyuki FUKUMOTO , Takuya OHARA , Takeshi KINOSHITA , Etsushi YAMAZAKI , Takayuki MIZUNO
IPC分类号： H04B10/112 , H04B10/2557
CPC分类号： H04B10/112 , H04B10/2557
摘要： A phase difference distribution estimation method includes: receiving an optical signal via a space and detecting a phase of the optical signal; calculating characteristic values related to characteristics of the atmosphere through which the optical signal propagates from the optical signal received in the receiving; estimating a phase difference distribution of an optical signal received after a certain period of time, on the basis of the characteristic values calculated in the calculating; and controlling a phase of an optical signal in the receiving on the basis of the phase difference distribution estimated in the estimating.
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公开(公告)号：US20170324472A1
公开(公告)日：2017-11-09
申请号：US15526835
申请日：2015-11-27
发明人： Kei KITAMURA , Takafumi HAMANO , Takashi KOTANIGAWA , Kaoru ARAI , Masahiro YOKOTA , Hideki MAEDA , Yoshiaki YAMADA , Takuya OHARA , Kengo SHINTAKU
IPC分类号： H04B10/032 , H04J3/16
摘要： A framer in a transmission device allocates plural optical channel time slots to a plurality of logical prioritized paths. It allocates received client signals to the allocated time slots, and transmits the client signals by a plurality of optical subcarriers that use a plurality of optical wavelengths corresponding to the plurality of time slots. The framer includes: a time slot allocation unit that, in a case where an optical wavelength corresponding to a time slot allocated to a logical path having a high transmission priority is not used, allocates at least one of the plurality of time slots to the logical path having the high transmission priority while the time slot corresponding to the unused optical wavelength is avoided, to change the time slot allocated to the logical path having the high transmission priority.
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公开(公告)号：US20150333838A1
公开(公告)日：2015-11-19
申请号：US14758941
申请日：2014-01-24
发明人： Kengo HORIKOSHI , Kohki SHIBAHARA , Etsushi YAMAZAKI , Mitsuteru YOSHIDA , Koichi ISHIHARA , Takayuki KOBAYASHI , Yoshiaki KISAKA , Takuya OHARA , Masahito TOMIZAWA , Tomoyoshi KATAOKA
CPC分类号： H04B10/6165 , H04L7/0041 , H04L7/0075 , H04L27/066 , H04L27/389
摘要： An optical receiving device receives an optical signal that has been modulated by means of phase modulation or quadrature amplitude modulation, converts the received optical signal into an electrical signal using coherent detection, and performs phase compensation on the converted received signal, and includes: a carrier phase estimation unit that estimates carrier phase errors in a received symbol string obtained from the received signal; a gain adjustment unit that performs gain adjustment on symbols input into the carrier phase adjustment unit; a phase cycle slip reduction unit that, by performing statistical processing on an output from the carrier phase estimation unit, detects general noise that causes a phase cycle slip, and reduces the phase cycle slip; and a phase compensation circuit that compensates carrier phase errors contained in the received signal using an output from the carrier phase estimation unit.
摘要翻译： 光接收装置接收通过相位调制或正交幅度调制进行了调制的光信号，使用相干检测将接收的光信号转换为电信号，并对转换的接收信号进行相位补偿，并包括：载波 估计从接收信号获得的接收符号串中的载波相位误差的相位估计单元; 增益调整单元，对输入到所述载波相位调整单元的符号进行增益调整; 通过对来自载波相位估计单元的输出进行统计处理，检测导致相位滑动的一般噪声并减少相位滑动的相位滑移减小单元; 以及相位补偿电路，其使用来自载波相位估计单元的输出来补偿接收信号中包含的载波相位误差。
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公开(公告)号：US20240155035A1
公开(公告)日：2024-05-09
申请号：US18413370
申请日：2024-01-16
IPC分类号： H04L67/141 , H04L41/084
CPC分类号： H04L67/141 , H04L41/0846
摘要： One aspect of the present invention is an information processing system that includes a computing machine installed in a computing machine base, and a first transmitting/receiving apparatus connected to the computing machine, a second transmitting/receiving apparatus installed in a user base that is used by a user, and a device connected to the second transmitting/receiving apparatus, and a control apparatus configured to control connection between the first transmitting/receiving apparatus and the second transmitting/receiving apparatus. In the information processing system, the control apparatus is configured to change the connection between the first transmitting/receiving apparatus and the second transmitting/receiving apparatus, and copy the state of the pre-change computing machine from the pre-change computing machine into the post-change computing machine.
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公开(公告)号：US20170366288A1
公开(公告)日：2017-12-21
申请号：US15527274
申请日：2015-11-26
发明人： Masahiro YOKOTA , Takafumi HAMANO , Takashi KOTANIGAWA , Kaoru ARAI , Kei KITAMURA , Hideki MAEDA , Yoshiaki YAMADA , Takuya OHARA , Kengo SHINTAKU
IPC分类号： H04J3/16 , H04J14/08 , H04L12/801 , H04L12/939
CPC分类号： H04J3/1652 , H04B10/03 , H04J3/14 , H04J14/00 , H04J14/02 , H04J14/08 , H04L47/34 , H04L49/552
摘要： A framer in a transmission device that allocates time slots of an optical channel to a logical path, divides client signals received via the logical path to the time slots allocated to the logical path, and transmits the client signals by a plurality of optical suhcarriers using optical wavelengths correlated with the time slots includes: a time slot allocating unit configured to perform a process of reducing a transmission band of the logical path when some of the optical wavelengths are unavailable and changing the time slots allocated to the logical path depending on the reduced transmission band to avoid using the time slots corresponding to the unavailable optical wavelengths.
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公开(公告)号：US20170324496A1
公开(公告)日：2017-11-09
申请号：US15526927
申请日：2015-11-26
发明人： Yoshiaki YAMADA , Kengo SHINTAKU , Takuya OHARA , Kei KITAMURA , Takashi KOTANIGAWA , Takafumi HAMANO , Kaoru ARAI , Masahiro YOKOTA , Hideki MAEDA
CPC分类号： H04J3/0652 , H04J3/0623 , H04J3/07 , H04J3/1652 , H04J14/00 , H04J14/02 , H04J14/08 , H04J2203/006
摘要： In the optical transport system a transport frame generator divides a transport frame accommodating plural client signals into plural transmission signals. Subcarrier transmission units convert the signals into optical signals using different optical carriers and transmit the converted optical signals. Subcarrier reception units receive the transmitted optical signals and convert the optical signals into reception signals. A transport frame termination unit combines the reception signals to restore the transport frame. A time-demultiplexing processor time-demultiplexes the restored transport frame to be separated into the client signals. A time slot control unit determines a new time slot allocation when time-multiplexing the client signals in the transport frame and stops supply of electric power to a subcarrier transmission unit and a subcarrier reception unit that transmit and receive an optical signal to which the client signals are not allocated.
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公开(公告)号：US20160006525A1
公开(公告)日：2016-01-07
申请号：US14837041
申请日：2015-08-27
CPC分类号： H04J3/0658 , H04J3/07 , H04J3/1652 , H04J14/0227 , H04Q11/0005 , H04Q2011/0045
摘要： A client signal mapping circuit for accommodating a client signal in a transmission frame, including: a buffer unit configured to temporarily store the client signal; a buffer used amount monitoring unit configured to report a used amount of the buffer unit; a stuff processing determination unit configured to compare the used amount of the buffer unit with a predetermined reference value, and a pseudo random sequence signal and the comparison result; an overhead insertion unit configured to add an overhead to the client signal read from the buffer unit to form a transmission frame; and a reading control unit configured to perform control for reading the client signal from the buffer unit based on determination by the stuff processing determination unit.
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公开(公告)号：US20240275671A1
公开(公告)日：2024-08-15
申请号：US18565892
申请日：2021-06-28
IPC分类号： H04L41/0816 , H04B10/27 , H04L41/40
CPC分类号： H04L41/0816 , H04B10/27 , H04L41/40
摘要： A communication system is a communication system that includes: a plurality of transmission devices; a setting server that receives an instruction to change data related to setting of a data network; and a control server that performs a control process related to the plurality of transmission devices and the data network on a basis of the data. In the communication system, a setting processing unit is provided to perform a process for constructing a customer control network between a first transmission device and the setting server by using a second transmission device as a relay device, when the first transmission device and the second transmission device are connected by an optical transmission line. The first transmission device includes: a connection processing unit that performs a process for constructing a control network between the first transmission device and the control server by using the second transmission device as a relay device, when the first transmission device and the second transmission device are connected by the optical transmission line; and a device control unit that performs a process for constructing the data network for the first transmission device by using the second transmission device as a relay device, when the first transmission device and the second transmission device are connected by the optical transmission line.
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公开(公告)号：US20240187763A1
公开(公告)日：2024-06-06
申请号：US18286415
申请日：2021-04-21
CPC分类号： H04Q11/0062 , H04B10/27 , H04Q2011/0064 , H04Q2011/0086
摘要： A transmission device, which is provided between user devices and transmits a client signal transmitted by the user devices through an optical transmission network, the transmission device comprising: a setting unit of setting a path having a band for accommodating the client signal obtained from a monitoring result of a control signal transmitted and received at a time of negotiation between the user devices; and a transfer unit of transferring the client signal using the path set by the setting unit.
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