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公开(公告)号：US20140211814A1
公开(公告)日：2014-07-31
申请号：US14236557
申请日：2012-09-25
发明人： Junichi Abe , Kiyoshi Kobayashi
IPC分类号： H04J4/00
CPC分类号： H04J4/00 , H04B1/69 , H04L27/2626 , H04L27/2636 , H04L27/2647
摘要： A transmitter of a communication system includes a spectrum dividing section which divides a transmission signal into a plurality of sub-spectra at a first sampling speed F1 and combines one or more low-speed intermediate composite signals from the divided sub-spectra, and a multiplexing section which multiplexes the intermediate composite signals at a second sampling speed F2 faster than the first sampling speed F1 (F2>F1) and distributes to a broadband. A receiver includes a demultiplexing section which extracts one or more low-speed intermediate composite signals from a reception signal at the second sampling speed F2, and a spectrum combining section which combines the intermediate composite signals at the first sampling speed F1 and extracts the sub-spectra to re-combines the transmission signal.
摘要翻译： 通信系统的发射机包括频谱分割部分，其以第一采样速度F1将传输信号分成多个子频谱，并且组合来自分割子频谱的一个或多个低速中间复合信号，以及复用 该部分以比第一采样速度F1（F2> F1）更快的第二采样速度F2复用中间复合信号并分配到宽带。 接收机包括从第二采样速度F2的接收信号中提取一个或多个低速中间复合信号的解复用部分，以及以第一采样速度F1组合中间复合信号的频谱组合部分， 光谱重新组合传输信号。
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公开(公告)号：US20230412272A1
公开(公告)日：2023-12-21
申请号：US18035223
申请日：2020-11-10
发明人： Satoshi SHIMAZU , Tomoaki YOSHIDA , Takayoshi TASHIRO , Kenta ITO
IPC分类号： H04B10/27
CPC分类号： H04B10/27
摘要： A transition assistance device that assists device replacement in an optical access system including a transition source subscriber line terminal station device and a transition destination subscriber line terminal station device, the transition assistance device including: a first member, and a second member that is movable, in which the first member includes a first port for connecting to the transition source subscriber line terminal station device, and a second port for connecting to the transition destination subscriber line terminal station device, the second member includes a third port for connecting to one or more subscriber line terminal devices connected to the transition source subscriber line terminal station device, and at a start of the device replacement, the first port and the third port are connected to each other via a connection line; a cutting unit that cuts the connection line connecting the first port and the third port to each other after the transition assistance device is connected to the transition destination subscriber line terminal station device via the second port; a movement control unit that moves the second member after the connection line is cut; and a connection unit that connects the second port and the third port to each other with connection lines after movement of the second member.
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公开(公告)号：US20170272167A1
公开(公告)日：2017-09-21
申请号：US15505559
申请日：2015-08-19
发明人： Kenji KAWAI , Yuki ARIKAWA , Tomoaki KAWAMURA , Nobuyuki TANAKA , Satoshi SHIGEMATSU , Naoki MIURA
摘要： An OLT (1) is formed by N optical transceivers (11), one PON control circuit (12), and one selection and distribution circuit (13). An optical transceiver selection control signal (SC) is transferred from the PON control circuit (12) to the selection and distribution circuit (13). The optical transceiver selection control signal (SC) indicates the timing of a discovery window, the timing of a grant, and a logical link identification number of a registered ONU assigned to the grant (a logical link identification number for a logical link with the registered ONU). The selection and distribution circuit (13) selects one optical transceiver (11-s (s is an integer falling within a range of 0 to N−1)) from the optical transceivers (11-0 to 11-N−1) based on the optical transceiver selection control signal (SC) from the PON control circuit (12).
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4.发明公开公开(公告)号：US20240250768A1
公开(公告)日：2024-07-25
申请号：US18289380
申请日：2021-05-21
IPC分类号： H04J14/02
CPC分类号： H04J14/0209 , H04J14/02216
摘要： The present invention provides an optical amplification system (1) having a plurality of cascade-connected optical amplification units (11), wherein the optical amplification units (11) comprise: a band division unit (111) that divides an optical signal into optical signals of two different bands; a polarized wave division unit (112) that divides the divided optical signals into two polarized wave components orthogonal to each other, an excitation light multiplexing unit (113) that multiplexes excitation light and the optical signals divided by the polarized wave division unit (112); an amplification medium (115) that generates an optical parametric amplification and amplifies the optical signals; an excitation light division unit (117) that divides the excitation light and the optical signals amplified by the amplification medium (115); a polarized wave synthesis unit (118) that synthesizes the two divided polarized wave components; and a band multiplexing unit (119) that multiplexes the two divided bands.
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公开(公告)号：US20240056179A1
公开(公告)日：2024-02-15
申请号：US17766451
申请日：2019-10-30
发明人： Kei KITAMURA , Fumikazu INUZUKA , Kengo SHINTAKU , Takafumi TANAKA , Takuya ODA
IPC分类号： H04B10/032 , H04Q11/00
CPC分类号： H04B10/032 , H04Q11/0062 , H04Q2213/08 , H04Q2011/0081
摘要： A transmission apparatus includes a first communication unit, a second communication unit, a detection unit, a control unit, and a selection unit. The first communication unit uses a first path for communication, when electric power is supplied. The second communication unit uses a second path for communication, when electric power is supplied. The detection unit detects a fault predictive sign. The control unit supplies no electric power to the second communication unit when the detection unit does not detect the fault predictive sign. The control unit starts supplying electric power to the second communication unit and performs normality confirmation of the second path when the detection unit detects the fault predictive sign, before switching from the first path to the second path. The selection unit selects and outputs, when the first communication unit and the second communication unit have received signals, either the signal received by the first communication unit or the signal received by the second communication unit.
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公开(公告)号：US20190238372A1
公开(公告)日：2019-08-01
申请号：US16343994
申请日：2017-11-06
发明人： Kenji MIYAMOTO , Jun TERADA , Tatsuya SHIMIZU
CPC分类号： H04L25/03318 , H04B7/022 , H04L25/0204 , H04L25/0224 , H04L25/067 , H04L27/00 , H04W88/08 , H04W92/12
摘要： A radio communication system includes a radio apparatus and a signal processing apparatus that function as a base station, and the radio apparatus includes a channel estimation unit that, on the basis of a radio signal transmitted from a terminal apparatus, estimates channel information relating to a radio transmission path between the radio apparatus and the terminal apparatus; a demodulation unit that performs soft-decision demodulation of the radio signal on the basis of the channel information estimated by the channel estimation unit; a signal switching unit that, depending on the terminal apparatus that transmitted the radio signal, switches an output destination of a log likelihood ratio obtained by the soft-decision modulation between either a first path passing through a decoding unit that decodes the log likelihood ratio or a second path not passing through the decoding unit; and a transmission unit that transmits a signal output from the first path or the second path to the signal processing apparatus.
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公开(公告)号：US20240163245A1
公开(公告)日：2024-05-16
申请号：US18282405
申请日：2021-04-08
发明人： Tatsuya FUKUI , Toshihito FUJIWARA , Ryota SHIINA , Tomohiko IKEDA , Hiroya ONO
摘要： In order to solve the above problem, an object of the present invention is to provide a network system, a control method, a database, a controller, and a program capable of path construction in a device IF direct access network without disclosing connection information.
A network system according to the present invention (1) specifies and records a location on a network of a user and a device used by the user by using exchange of authentication data using a media signal of the device, and (2) when the user makes a connection request to content by using a user name, a controller solves location information on the network by using the user name, controls the network, and realizes connection between the content and the device.-
公开(公告)号：US20240118959A1
公开(公告)日：2024-04-11
申请号：US17768445
申请日：2019-10-25
发明人： Haruhisa NOZUE , Satoshi SUZUKI , Shunsuke KANAI , Kazuaki AKASHI , Naomi MURATA , Fumika ASAI
IPC分类号： G06F11/07
CPC分类号： G06F11/0766
摘要： A rule generation device according to an embodiment includes: a database in which, for each fault, fault factor information including a fault factor part and a fault factor, fault events that occur due to this fault, a rule ID associated with a rule including a condition part and a result part are registered in association with one another; an importance degree determination unit determining, when fault events of a new fault that is a newly occurred fault are registered with the database, degrees of importance of the fault events of the new fault based on at least one of values calculated through statistical processing or analytical processing for information other than the fault events or overall information about the fault events, which are registered with the database; and a rule generation unit generating a rule for the new fault based on the degrees of importance.
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公开(公告)号：US20150188675A1
公开(公告)日：2015-07-02
申请号：US14414837
申请日：2013-07-19
发明人： Hirantha Sithira Abeysekera , Yasuhiko Inoue , Yusuke Asai , Shoko Shinohara , Takeo Ichikawa , Masato Mizoguchi
CPC分类号： H04L5/0007 , H04B7/0413 , H04J11/005 , H04J11/0063 , H04L5/001 , H04L5/0023 , H04L5/0044 , H04L5/0098 , H04W72/04 , H04W84/12
摘要： There is provided a wireless communication system which can improve throughputs in wireless communication by effectively using frequency resources. In the wireless communication system including a plurality of wireless communication stations which may operate as wireless communication terminals or wireless base stations, the wireless communication station includes an access right acquisition means of acquiring an access right upon generating transmitting data; a determination means of determining whether or not different data destined to a plurality of wireless communication stations can be transmitted on different channels according to OFDMA; and a data transmitting means of transmitting data to the receivable wireless communication stations using OFDMA when the determination means determines that different data destined to a plurality of wireless communication stations can be transmitted on different channels.
摘要翻译： 提供了一种无线通信系统，其可以通过有效地使用频率资源来提高无线通信中的吞吐量。 在包括可以作为无线通信终端或无线基站工作的多个无线通信站的无线通信系统中，无线通信站包括访问权获取装置，用于在产生发送数据时获取访问权限; 确定装置，用于根据OFDMA确定是否可以在不同信道上发送去往多个无线通信站的不同数据; 以及数据发送装置，当确定装置确定可以在不同信道上发送去往多个无线通信站的不同数据时，使用OFDMA向可接收无线通信站发送数据。
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公开(公告)号：US20240230464A1
公开(公告)日：2024-07-11
申请号：US18288988
申请日：2021-05-28
发明人： Ryo KOYAMA , Yoshiteru ABE , Kazunori KATAYAMA
CPC分类号： G01M11/37 , G01M11/0207
摘要： The present disclosure aims to reduce the size and cost of this optical monitoring device that detects the intensity of light propagating through an optical fiber.
The present disclosure relates to an optical monitoring device for detecting the intensity of light propagating through an optical fiber, the optical monitoring device comprising an optical component that branches part of incident light in a first direction and branches the rest in a second direction at a specific branching ratio and emits the light, wherein the optical component includes: a single-layer film having a uniform thickness; an incident-side member provided on the incident side of the single-layer film; and an outgoing-side member provided on the outgoing side of the single-layer film, a first refractive index interface between the single-layer film and the incident-side member and a second refractive index interface between the single-layer film and the outgoing-side member are provided at a specific angle with an optical axis of the incident light, the first direction is a direction in which the light transmits through the first refractive index interface and the second refractive index interface, and the second direction is a direction in which the light is reflected on the first refractive index interface and the second refractive index interface.
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