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    • 2. 发明专利
    • Optical wavelength division multiplex communication system
    • 光波段多通信通信系统
    • JP2011155481A
    • 2011-08-11
    • JP2010015578
    • 2010-01-27
    • Nippon Telegr & Teleph Corp Seikei Gakuen学校法人成蹊学園日本電信電話株式会社
    • NOGUCHI KAZUTOSAKAMOTO TADASHITANOBE HIROMASAMORIWAKI SETSUOGUCHI KIMIO
    • H04J14/00H04B10/25H04B10/2581H04J14/02
    • PROBLEM TO BE SOLVED: To provide an optical WDM communication system for a band of wide wavelengths which uses light sources having wavelengths from 0.4 to 1.6 μm inclusive and light receiving circuits and can be used both in a single mode and in multimode.
      SOLUTION: The optical wavelength division multiplex communication system includes: a transmitter 1 comprising multimode light sources 13 and 14, single-mode light sources 15 and 16, an optical multiplexer 11, and DM patch fibers 12; a receiver 2 comprising an optical separator 21, DM patch fibers 22 and light receiving circuits 23-26; and a DMF (dual-mode optical fiber) transmission line 3 which optically connects them. The DMF transmission line 3 transmits light signals which are multiplexed by the optical multiplexer 11 of the transmitter 1 to the receiver 2. In the receiver 2, wavelength multiplexed optical signals which are transmitted by the DMF transmission line 3 are optically separated into optical signals of different wavelengths by the optical separator 21, are transmitted to the light receiving circuits 23-26 through the DM patch fibers 22 and are converted into the original electric signals.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种宽波长带的光WDM通信系统,其使用波长为0.4至1.6μm的光源和光接收电路,并且可以在单个模式和多模式中使用。 解决方案:光波分复用通信系统包括:包括多模光源13和14,单模光源15和16,光复用器11和DM贴片光纤12的发射机1; 包括光学分离器21,DM贴片纤维22和光接收电路23-26的接收器2; 以及将它们光连接的DMF(双模光纤)传输线3。 DMF传输线3将由发射机1的光复用器11复用的光信号发送到接收机2.在接收机2中,由DMF传输线3发射的波分复用光信号被光学地分离成 通过光学分离器21的不同波长通过DM贴片纤维22传输到​​光接收电路23-26,并被转换成原始电信号。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Packet sending delay measuring system
    • 分组发送延迟测量系统
    • JPS6153855A
    • 1986-03-17
    • JP17579684
    • 1984-08-23
    • Nippon Telegr & Teleph Corp Toshiba Corp
    • OGUCHI KIMIOYONEDA KIYOSHI
    • H04L12/44
    • PURPOSE: To measure the delay time distribution in a network with high precision and to improve performance evaluation by observing the parcentage of an idle time on a channel in the packet communication network of SCMA/CD system to calculate the packet sending delay time.
      CONSTITUTION: A channel monitor part 31 monitors the condition of a channel, checks if the channel is idle during the time for each 400 bit time, and stores the decision result in a memory 32. An idle ratio calculation part 34 calculates the idle ratio P of the channel with an information series obtained from the memory 32, and a back-off range calculation part 34 calculates a back-off range (r) according to the fact whether a collision occurs or not and continuity of the idle time. An average delay calculation part 35 finds the packet sending delay time based on the results P and (r), and outputs it as the performance evaluation value of the packet communication network.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:以高精度测量网络中的延时时间分布,通过观察SCMA / CD系统的分组通信网络中的信道空闲时间间隔来提高性能评估,计算报文发送延迟时间。 构成:通道监视部31监视通道的状态,在每400位时间的时间内检查通道是否空闲,并将判定结果存储在存储器32中。空转率计算部34计算空闲率P 具有从存储器32获得的信息序列的信道,并且退避范围计算部34根据是否发生冲突和空闲时间的连续性的事实来计算退避范围(r)。 平均延迟计算部件35基于结果P和(r)找到分组发送延迟时间,并将其作为分组通信网络的性能评估值输出。
    • 5. 发明专利
    • Transmission data generating device
    • 传输数据生成设备
    • JPS61102848A
    • 1986-05-21
    • JP22297184
    • 1984-10-25
    • Nippon Telegr & Teleph Corp Toshiba Corp
    • OGUCHI KIMIOTSURUTA HIDEKAZU
    • H04L29/08H04L1/00H04L13/00H04L29/00H04L29/02
    • PURPOSE: To simplify a circuit construction and to reduce an error of a code by feeding a parallel N bit output of a cyclic calculating means as a data length adjusting code to a parallel column converting means, feeding it as a frame inspecting code to a parallel serial converting converting means after the feeding of this data length adjusting code is completed, and feeding a data code, the data length adjusting code and the frame inspecting code, successively.
      CONSTITUTION: After an N bit signal outputted from a latch circuit 42 is converted into a serial bit by a serializer 21, it is fed to a CRC calculating circuit 30 in order to count a frame inspecting code. When feed of a patting data PAD is completed, latch signals LS1∼LS4 are successively generated with respect to respective latch circuits 41∼44 from a control circuit. Thereby, the latch circuits 41∼44 at that time latch a parallel signal outputted from the CRC calculating circuit 30, that is, the frame inspecting signal by N bit successively and output to a data bus DBUS. As a result, from a serializer 22, the N bit signal outputted successively from the respective latch circuits 41∼44 is fed as the frame inspecting signal.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:为了简化电路结构并通过将循环计算装置的并行N位输出作为数据长度调整代码馈送到并行列转换装置来减少代码的错误,将其作为帧检查代码馈送到并行 在完成了该数据长度调整代码的馈送之后的串行转换转换装置,并依次提供数据码,数据长度调整码和帧检查码。 构成:在从锁存电路42输出的N位信号通过串行器21转换为串行位之后,将其馈送到CRC计算电路30,以对帧检查码进行计数。 当拍摄数据PAD的馈送完成时,锁存信号LS1-LS4相对于相应的锁存电路41-44从控制电路连续生成。 由此,此时的锁存电路41-44将从CRC计算电路30输出的并行信号即帧检查信号依次N位锁存并输出到数据总线DBUS。 结果,从串行器22,将从各个锁存电路41-44连续输出的N位信号作为帧检测信号进行馈送。
    • 6. 发明专利
    • Packet communication system
    • 分组通信系统
    • JPS6153854A
    • 1986-03-17
    • JP17579584
    • 1984-08-23
    • Nippon Telegr & Teleph Corp Toshiba Corp
    • OGUCHI KIMIOYONEDA KIYOSHIFUJIWARA MUTSUMI
    • PURPOSE: To keep the occurrence of a collision low and to attain effective packet communication by performing a back-off control based on the degree of congestion on a channel when controlling the send out of a communication packet by the CSMA/CD system.
      CONSTITUTION: When a communication device sends a packet, a sending control part 24 checks a carrier sense from a receiving control part 23 to send a CD zone signal only when access inhibit information is turned off. On sending, the data constructing a packet is sent only if a rcollision is not detected in the receiving control part 23. The receiving control part 23 receives the CD zone signal to raise the carrie sense signal and check if a collision occurs, and, if a collision is not detected, takes a receiving packet data in a memory 21 only if a destination address is in the sele-address or broadcast adrress. Afterwards, a pointer table is updated to interrupt in a adapter control part 22 for completion of the receiving, and to send out of a ACK is indicated.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过在控制CSMA / CD系统发送通信分组时基于通道上的拥塞程度执行回退控制,以保持发生低碰撞并获得有效的分组通信。 构成:当通信设备发送分组时,发送控制部分24仅在接入禁止信息被关闭时才从接收控制部分23检查载波感测以发送CD区域信号。 在发送时,只有在接收控制部分23中没有检测到rcollision时,才发送构成数据包的数据。接收控制部分23接收CD区域信号以提高载波感测信号,并检查是否发生冲突,并且如果 没有检测到冲突,只有当目的地地址在sele地址或广播地址中时才将存储器21中的接收分组数据。 之后,更新指针表以在适配器控制部分22中中断以完成接收,并指示发送出ACK。
    • 7. 发明专利
    • Repeater for optical star coupler
    • 光耦合器重复器
    • JPS59215135A
    • 1984-12-05
    • JP8907283
    • 1983-05-23
    • Nippon Telegr & Teleph Corp
    • TOKURA NOBUYUKIOGUCHI KIMIOHAKAMATA YOSHIROUFUJII YOUJI
    • H04B10/27H04B10/272H04B10/29H04L12/44H04B9/00
    • H04B10/29
    • PURPOSE:To constitute a tree form communication network by making a light transmission wavelength lambdaR of a coupled output of a repeater different from a light transmission wavelength lambdaT of a terminal device so as to make a wavelength receivable at the terminal device and inserting a filter for wavelengths except the wavelength lambdaR to a photodetector of a branch input of the repeater. CONSTITUTION:Optical star couplers are coupled in tree form, and the relaying from the branch side to the feeder side is attained always by a repeater 1 for star coupler. This repeater 1 is assembled in a repeater 21 for light star coupler having output terminals 11, 23 to an input optical fiber of the optical star coupler and input terminals 12, 24 from an optical star coupler output fiber. The irradiated light source of the branch side of the tree form communication network is constituted that a wavelength different from the wavelength of the light source of devices connected to the coupler at the branch side and receptionable by the devices is outputted. Further, a filter 22 for eliminating wavelength lambdaR is provided to the input terminal 24 of the repeater 21. Then, the light transmission wavelength lambdaR of the coupled output of the repeater 21 is made different from the light transmission wavelength lambdaT at the terminal device so as to stabilize the communication in the tree form communication network.
    • 目的:通过使与中继器的耦合输出的光传输波长λR成为不同于终端设备的光透射波长λT的树形通信网络,以使波长可在终端设备处接收并插入用于 波长λR以外的波长到中继器的分支输入的光电检测器。 构成:光学星形耦合器以树形形式耦合,并且从分支侧到馈电侧的中继始终由星形耦合器的中继器1实现。 该中继器1组装在具有输出端子11,23的光星耦合器的中继器21中,从光学星形耦合器输出光纤到光学星形耦合器的输入光纤和输入端子12,24。 树形通信网络的分支侧的照射光源的结构是,输出与分支侧连接到耦合器并且可由设备接收的设备的光源的波长不同的波长。 此外,用于消除波长λR的滤波器22被提供给中继器21的输入端子24.然后,使中继器21的耦合输出的光透射波长λR与端子装置处的透光波长λT不同 以稳定通信在树形通信网络。
    • 8. 发明专利
    • Burst signal receiver
    • BURST信号接收器
    • JPS59193656A
    • 1984-11-02
    • JP6803583
    • 1983-04-18
    • Nippon Telegr & Teleph Corp
    • TOKURA NOBUYUKIHAKAMATA YOSHIROUOGUCHI KIMIO
    • H04L25/49G11B20/14H04L7/04H04L25/497
    • G11B20/1419H04L7/046
    • PURPOSE:To detect easily collision of signals by applying partial response conversion to a receiving signal, converting the result into an AC signal and performing signal identification by means of a binary identification device at the latter half code time corresponding to the Manchester code converted into two codes. CONSTITUTION:A transmission signal A inputted to a terminal 11 of an optical burst signal transmitter 10 is subject to the Manchester code conversion 14 by a clock signal f0, electrooptic-converted 15 via an enable signal 13 and transmitted as an optical signal 6. On the other hand, the signal 6 is photo-electric- converted 2 at an optical burst signal receiver 20, is subject to partial response code conversion 21 and an output D not including a DC component is amplified 3' in terms of AC. Nonlinear extraction is attained from the output at a timing extraction circuit 22, and signal identification is performed for a binary identification device 4 at the latter half code time corresponding to the Manchester code converted into the two codes by an output signal I of a 1/2-frequency division circuit.
    • 目的:通过对接收信号进行部分响应转换来检测信号容易发生碰撞,将结果转换为交流信号,并通过二进制识别装置在对应于曼彻斯特码转换为两个码的后半个码时间进行信号识别 码。 构成:输入到光突发信号发送器10的端子11的发送信号A经由时钟信号f0经过曼彻斯特码转换14,经由使能信号13电光转换为15并作为光信号6发送。 另一方面,信号6在光突发信号接收机20处被光电转换2,经受部分响应码转换21,而不包括DC分量的输出D以AC为单位放大3'。 通过定时提取电路22的输出获得非线性提取,并且通过1/1的输出信号I,对应于通过转换成两个代码的曼彻斯特码的后半代码时间对二进制识别装置4进行信号识别。 2分频电路。
    • 9. 发明专利
    • Optical star coupler provided with repeating node
    • 光星联合提供重复发送节点
    • JPS59107319A
    • 1984-06-21
    • JP21696482
    • 1982-12-13
    • Nippon Telegr & Teleph Corp
    • TOKURA NOBUYUKIOGUCHI KIMIOFUJII YOUJI
    • G02B6/28
    • G02B6/2808
    • PURPOSE:To form a communication network with a large scale and high reliability by a simple circuit constitution by connecting and placing one or more branching and coupling optical transmission lines at a position where a light from the coupling optical transmission line is not coupled with the branching optical transmission line, in a mixing waveguide. CONSTITUTION:In an optical coupler 10 (10-1, 10-2) provided with a repeating note; a light which is made incident to a high refractive index part (a) of a slab type optical waveguide (mixing waveguide) from an input fiber 2 expands in the high refractive index part (a), and is made to branch into the high refractive index part (a) of the slab type optical waveguide 1-2 and a branching repeating node optical fiber 5. The light which is made incident to the optical waveguide 1-2 is distributed to all output optical fibers 3. On the other hand, the light which is made incident to the part (a) of the optical waveguide 1-2 from a coupling repeating node optical fiber 4 is distributed to all the output optical fibers 3. By using this star coupler 10, the input/output optical fibers 2, 3, and an optical repeater 12, a communication network with a large scale and high reliability can be formed by a simple circuit constitution.
    • 目的:通过简单的电路结构形成具有大规模和高可靠性的通信网络,通过连接和放置一个或多个分支和耦合光传输线路,其中耦合光传输线路的光不与分支 光传输线,在混合波导中。 构成:在具有重复音符的光耦合器10(10-1,10-2)中; 入射到来自输入光纤2的板状光波导(混合波导)的高折射率部分(a)的光在高折射率部分(a)中膨胀,并且被分支成高折射率 板状光波导1-2的折射率部分(a)和分支重复节点光纤5.入射到光波导1-2的光分布到所有输出光纤3上。另一方面, 从耦合中继节点光纤4入射到光波导1-2的部分(a)的光被分配到所有输出光纤3.通过使用该星形耦合器10,输入/输出光纤 如图2,3所示,光中继器12可以通过简单的电路结构形成大规模,高可靠性的通信网络。
    • 10. 发明专利
    • Multi-access communicating device
    • 多通信通信设备
    • JPS59107666A
    • 1984-06-21
    • JP21696282
    • 1982-12-13
    • Nippon Telegr & Teleph Corp
    • TOKURA NOBUYUKIOGUCHI KIMIO
    • H04L12/413
    • H04L12/413
    • PURPOSE:To simplify the constitution of a communicating equipment by fetching a receiving packet signal when being addressed to its own equipment and detecting an abnormal signal at a counter of a communication control section when the abnormal packet signal s received consecutively two times or over so as to avoid the collision at high traffic. CONSTITUTION:The communicating equipment 1 is provided with a packet receiving section 2, a carrier detecting section 3, a packet transmission section 4 and a communication control section 5, a data from a terminal device inputted to a transmission data input terminal 9 is inputted to the transmission section 4, where an address is provided and the data is stored in a buffer memory. Then, a packet signal is outputted from a transmission output 16 by an output of transmission enable from the control section 5. Further, in case of receiving, a signal from the terminal 6 or the transmission section 4 of the own equipment is inputted to the detecting section 3 and the receiving section 2, the signal addressed to the own station is outputted to an output terminal 7 from the receiving section 2, the normality/abnormity is checked and the signal is applied to the control section 5. Moreover, the receiving level is checked at the detecting section 3, a carrier detecting display output and a receiving signal end display output are outputted to the control section 5 for attaining the packet communication.
    • 目的:为了简化通信设备的结构,当寻址到自己的设备时,通过获取接收分组信号,并且当异常分组信号连续接收到两次或以上时,在通信控制部分的计数器处检测异常信号,以便 以避免高交通量的碰撞。 构成:通信装置1具备分组接收部2,载波检测部3,分组发送部4以及通信控制部5,输入到发送数据输入端子9的终端装置的数据被输入到 发送部分4,其中提供地址,并且数据被存储在缓冲存储器中。 然后,通过来自控制部5的发送使能的输出,从发送输出16输出分组信号。此外,在接收到来自本装置的终端6或发送部4的信号被输入到 检测部分3和接收部分2,将来自本台站的信号从接收部分2输出到输出端子7,检查正常/异常,并将信号施加到控制部分5.此外,接收 在检测部分3检查电平,载波检测显示输出和接收信号结束显示输出被输出到控制部分5以获得分组通信。