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1. 发明授权

US4970719A Digital signal multiplexing apparatus 失效
标题翻译：数字信号复用装置
公开(公告)号：US4970719A
公开(公告)日：1990-11-13
申请号：US233095
申请日：1988-08-17
申请人： Akihiko Takase , Yoshitaka Takasaki
发明人： Akihiko Takase , Yoshitaka Takasaki
IPC分类号： H04J3/16
CPC分类号： H04J3/1641 , Y10S370/916
摘要： A digital signal multiplexing apparatus comprising variable multiplexers each of which can alter a multiplexed channel format every call in compliance with a subscriber's request, a fixed multiplexer which has a multiplexing capacity integral times as large as the total multiplexing capacity of the variable multiplexers and the multiplexed channel format of which is fixed, and fixed multiplexed signal demultiplexers each of which fixedly demultiplexes signals in a capacity integral times as large as that of each of the variable multiplexers into signals in a capacity equal to the total capacity of the variable multiplexers, wherein the outputs of the fixed multiplexed signal demultiplexers are distributed to the variable multiplexers through a distributing switch network, and the outputs of the variable multiplexers are multiplexed by the fixed multiplexer.
摘要翻译：一种数字信号复用装置，包括可变多路复用器，每个可以根据用户的请求改变每个呼叫的多路复用信道格式，固定多路复用器具有与可变多路复用器的总复用容量一样大的复用容量，信道格式固定的固定多路复用信号解复用器，其中固定多路复用信号解复用器固定地将电容量与每个可变多路复用器的整数倍的电容多路分解成等于可变多路复用器的总容量的信号，其中，固定复用信号解复用器的输出通过分配交换网络分配给可变多路复用器，并且可变多路复用器的输出由固定多路复用器复用。

2. 发明授权

US5140453A Optical receiving method utilizing polarization diversity and apparatus for carrying out the same 失效
标题翻译：利用极化分集的光接收方法及其执行装置
公开(公告)号：US5140453A
公开(公告)日：1992-08-18
申请号：US166984
申请日：1988-03-11
申请人： Hideaki Tsushima , Katsuyuki Imoto , Hirohisa Sano , Akihiko Takase , Yoshitaka Takasaki , Minoru Maeda
发明人： Hideaki Tsushima , Katsuyuki Imoto , Hirohisa Sano , Akihiko Takase , Yoshitaka Takasaki , Minoru Maeda
IPC分类号： H04B10/148
CPC分类号： H04B10/61 , H04B10/614 , H04B10/64
摘要： An optical receiving method utilizing polarization diversity is disclosed in which first and second reference lightwaves having different frequencies and having polarization planes substantially perpendicular to each other, are combined with a signal lightwave to form a combined lightwave. The combined lightwave is subjected to heterodyne detection to obtain a detection signal and the detection signal is separated into first and second intermediate-frequency signals having different carrier frequencies. The first and second intermediate-frequency signals are converted into first and second baseband signals, respectively, and the first and second baseband signals are added to obtain an output signal.
摘要翻译：公开了一种利用极化分集的光接收方法，其中具有不同频率的第一和第二参考光波具有彼此基本垂直的偏振面，与信号光波组合以形成组合的光波。对组合的光波进行外差检测以获得检测信号，并将检测信号分离成具有不同载波频率的第一和第二中频信号。第一和第二中频信号分别转换为第一和第二基带信号，并且相加第一和第二基带信号以获得输出信号。

3. 发明授权

US5042027A Communication network system and method of controlling a communication network 失效
标题翻译：通信网络系统和控制通信网络的方法
公开(公告)号：US5042027A
公开(公告)日：1991-08-20
申请号：US404535
申请日：1989-09-08
申请人： Akihiko Takase , Masahiro Takatori , Yoshiaki Takemura , Naoya Kobayashi , Yasushi Sawada , Yukio Nakano , Yasushi Takahashi , Masahiro Koya , Yoshitaka Takasaki
发明人： Akihiko Takase , Masahiro Takatori , Yoshiaki Takemura , Naoya Kobayashi , Yasushi Sawada , Yukio Nakano , Yasushi Takahashi , Masahiro Koya , Yoshitaka Takasaki
IPC分类号： H04M3/36 , H04L12/24 , H04L12/801 , H04L12/911 , H04M3/00 , H04Q3/66
CPC分类号： H04L45/00 , H04Q3/66 , H04Q2213/13141 , H04Q2213/13164 , H04Q2213/13166 , H04Q2213/13332 , H04Q2213/13353
摘要： A communication network system includes a communication line, a plurality of communication stations each having a node coupled to the communication line and a network controller coupled to the stations for controlling routing for communication messages between nodes. In one embodiment, the messages are sent from plural terminals connected with each node along with communication performance prerequisites. The communication performance prerequisites for a communication message are discriminated in the node which receives the message. Traffic in various routes between the nodes is continually measured in the communication stations and the measuring results are stored in a database storage unit. Future traffic in the various routes is predicted on the basis of the information on the continually measured traffic by the use of a predetermined algorithm and stored in the storage unit for use in determination of routes for communication messages on the basis of the result of the communication performance prerequisites discrimination and predetermined criteria with respect to the updated information on the predicted traffic in the storage unit.
摘要翻译：通信网络系统包括通信线路，多个通信站，每个通信站具有耦合到通信线路的节点，以及耦合到该站点的网络控制器，用于控制节点之间的通信消息的路由。在一个实施例中，从与每个节点连接的多个终端以及通信性能先决条件发送消息。通信消息的通信性能先决条件在接收消息的节点中被区分。在通信站中连续测量节点之间的各种路由的流量，并将测量结果存储在数据库存储单元中。基于通过使用预定算法的连续测量的业务的信息来预测各种路线中的未来业务，并且存储在存储单元中以用于基于通信的结果确定通信消息的路由性能先决条件判定和关于存储单元中预测业务量的更新信息的预定标准。

4. 发明授权

US5023604A Communication system 失效
标题翻译：通讯系统
公开(公告)号：US5023604A
公开(公告)日：1991-06-11
申请号：US233096
申请日：1988-08-17
申请人： Akihiko Takase , Yoshitaka Takasaki
发明人： Akihiko Takase , Yoshitaka Takasaki
IPC分类号： H04L12/52 , H04Q11/04
CPC分类号： H04Q11/04 , H04L12/52
摘要： The invention provides a communication method and system for use in a network for digital data exchange/transfer through a circuit switched network. According to the method and system, a call is given the attribute of an intermittent transfer mode, and a device for identifying attributes is provided on network controls in connection paths so that the network control establishes a path only in response to a data transfer request from identified call and releases the path when the call is held on standby for data transfer.
摘要翻译：本发明提供一种在网络中用于通过电路交换网络进行数字数据交换/传输的通信方法和系统。根据该方法和系统，给予间歇传送模式的属性的呼叫，并且在连接路径中的网络控制上提供用于识别属性的设备，使得网络控制仅响应于来自当呼叫持续待机以进行数据传输时，识别呼叫并释放路径。

5. 发明授权

US4967410A Method of multiplexing digital signals and apparatus therefor 失效
标题翻译：数字信号复用方法及其设备
公开(公告)号：US4967410A
公开(公告)日：1990-10-30
申请号：US324656
申请日：1989-03-17
申请人： Akihiko Takase , Yoshitaka Takasaki
发明人： Akihiko Takase , Yoshitaka Takasaki
IPC分类号： H04J3/00 , H04J3/06
CPC分类号： H04J3/0623
摘要： A high speed digital signal multiplexing method and apparatus are provided wherein a plurality of first higher bit rate transmission frames are provided, each first higher bit rate transmission frame being multiplexed therein with lower bit rate signals in an n-byte (n is an integer) interleave manner, and the lower bit rate signals are selectively derived from the plurality of first higher bit rate transmission frames and multiplexed into a second higher bit rate transmission frame. When a phase conflict is detected among the derived lower bit rate signals, all the data columns of at least one of the derived lower bit rate signals are given a predetermined delay by means of a shift register, and the derived signals are multiplexed into the second higher bit rate transmission frame. When a first higher bit rate transmission frame asynchronous with the system frame is detected, a pointer is derived which pointer represents a predetermined information unit within the derived lower bit rate signal. The derived pointer is inserted into a time slot corresponding to the frame pattern position of the second higher bit rate transmission frame for the lower bit rate signal. Thereafter, the derived signals are multiplexed.
摘要翻译：提供了一种高速数字信号复用方法和装置，其中提供多个第一较高比特率传输帧，每个第一高比特率传输帧在其中复用，其中n字节（n为整数）的较低比特率信号，并且从多个第一较高比特率传输帧中选择性地导出较低比特率信号，并被多路复用为第二较高比特率传输帧。当在导出的较低比特率信号中检测到相位冲突时，通过移位寄存器给出所导出的较低比特率信号中的至少一个的所有数据列，并将导出的信号复用到第二较高的比特率传输帧。当检测到与系统帧异步的第一较高比特率传输帧时，导出指针，该指针表示所导出的较低比特率信号内的预定信息单元。导出的指针被插入到与较低比特率信号的第二较高比特率传输帧的帧模式位置相对应的时隙中。此后，导出的信号被多路复用。

6. 发明授权

US4723312A Light emitting diode driver circuit 失效
标题翻译：发光二极管驱动电路
公开(公告)号：US4723312A
公开(公告)日：1988-02-02
申请号：US769971
申请日：1985-08-27
申请人： Kiichi Yamashita , Katsuyoshi Harasawa , Yoshitaka Takasaki
发明人： Kiichi Yamashita , Katsuyoshi Harasawa , Yoshitaka Takasaki
IPC分类号： H01L33/00 , H04B9/00
CPC分类号： H04B10/502
摘要： A high-speed light emitting diode driver circuit for optical communication systems, in which an impedance circuit is provided between the collector and emitter of a drive transistor, and another impedance circuit is provided on the emitter side. The light emitting diode is connected to the collector side of the drive transistor. The light emitting diode is driven by an input pulse signal applied to the base of the drive transistor.
摘要翻译：用于光通信系统的高速发光二极管驱动电路，其中阻抗电路设置在驱动晶体管的集电极和发射极之间，另一个阻抗电路设置在发射极侧。发光二极管连接到驱动晶体管的集电极侧。发光二极管由施加到驱动晶体管的基极的输入脉冲信号驱动。

7. 发明授权

US4604745A Method of searching fault locations in digital transmission line 失效
标题翻译：数字传输线故障位置检索方法
公开(公告)号：US4604745A
公开(公告)日：1986-08-05
申请号：US578791
申请日：1984-02-10
申请人： Yoshitaka Takasaki , Kiichi Yamashita , Yasushi Takahashi
发明人： Yoshitaka Takasaki , Kiichi Yamashita , Yasushi Takahashi
IPC分类号： H04B17/40 , H04L1/24 , H04B3/46
CPC分类号： H04L1/24 , H04B17/40
摘要： A method of searching fault locations which is employed in a transmission system comprising a transmitting terminal having a transmitter for transmitting a digital signal; a receiving terminal having a receiver for receiving the digital signal; a plurality of repeaters which are placed between the transmitting and receiving terminals, and each of which receives and amplifies the digital signal from a preceding repeater section and deliver it to a subsequent repeater section; and a plurality of transmission lines for connecting the transmitter with the first repeater, the repeaters with each other and the final repeater with each other and the final repeater with the receiver, respectively. This method comprises the steps of coding an original signal to be transmitted in terms of two kinds of error detecting codes at the transmitting terminal to send out them from the transmitter; detecting an error of a received signal using one of the two kinds of error detecting codes at each repeater thereby to measure the error rate at one repeater section corresponding to each repeater; recoding a decoded received signal using the error detecting code employed to detect the error, and delivering it to a subsequent repeater section, and transmitting signals each of which represents the error rate at each repeater section measured at each repeater, to the transmitting terminal or receiving terminal.
摘要翻译：一种搜索故障位置的方法，该传输系统包括具有用于发送数字信号的发射机的发射终端; 接收终端，具有接收数字信号的接收机; 放置在发送和接收终端之间的多个中继器，每个中继器从前一个中继器部分接收和放大数字信号，并将其传送到后续中继器部分; 以及多个传输线，用于将发射机与第一中继器连接，中继器彼此相连，最后中继器彼此相连，最后中继器分别与接收机相连。该方法包括以下步骤：在发送终端根据两种错误检测码对要发送的原始信号进行编码，以从发送器发送出来; 使用每个中继器的两种错误检测码之一检测接收信号的误差，从而测量与每个中继器对应的一个中继器部分的错误率; 使用用于检测误差的检错码重新编码解码的接收信号，并将其传送到后续中继器部分，并且将发送信号分别表示在每个中继器测量的每个转发器部分处的错误率，发送到发送终端或接收终奌站。

8. 发明授权

US4320527A Bit synchronizing system for pulse signal transmission 失效
标题翻译：位同步系统用于脉冲信号传输
公开(公告)号：US4320527A
公开(公告)日：1982-03-16
申请号：US66643
申请日：1979-08-15
申请人： Yoshitaka Takasaki
发明人： Yoshitaka Takasaki
IPC分类号： H04L7/02 , H04L7/033 , H04L7/04 , H03B3/04 , H03K5/00
CPC分类号： H04L7/033 , H04L7/007 , H04L7/041
摘要： A bit synchronizing system for generating a timing signal corresponding to a transmitted pulse signal is disclosed in which the transmitted pulse signal is converted into a signal in which the number of pulses successively assuming the same polarity is limited to permit detection of frequency, the converted signal is integrated, a peak of integrated values is detected, the output of a voltage-controlled clock generator for generating the timing signal is processed in a similar manner to detect a peak with respect to the output, and the clock generator is controlled by a voltage corresponding to a difference between these two peaks, whereby the frequency of clock signal coincides with the bit rate of the transmitted pulse signal.
摘要翻译：公开了一种用于产生与发送的脉冲信号相对应的定时信号的位同步系统，其中发送的脉冲信号被转换成其中连续假设相同极性的脉冲数被限制以允许检测频率的信号，转换的信号被集成，检测到积分值的峰值，以类似的方式处理用于产生定时信号的电压控制时钟发生器的输出，以检测相对于输出的峰值，并且时钟发生器由电压对应于这两个峰值之间的差值，由此时钟信号的频率与发送的脉冲信号的比特率一致。

9. 发明授权

US5121381A Optical switching apparatus for digital signal cross connection and method of interswitch optical transmission of digital signals 失效
标题翻译：数字信号交叉用光开关装置及数字信号交会间光传输方法
公开(公告)号：US5121381A
公开(公告)日：1992-06-09
申请号：US397553
申请日：1989-08-23
申请人： Yasushi Takahashi , Yoshitaka Takasaki
发明人： Yasushi Takahashi , Yoshitaka Takasaki
IPC分类号： G02F1/313 , H04B10/032 , H04B10/27 , H04J14/02 , H04Q3/52 , H04Q11/00 , H04Q11/02
CPC分类号： H04J14/02 , H04Q11/0001 , H04J14/029 , H04Q2011/0081
摘要： Disclosed is an optical switching apparatus comprising means for converting serial optical or electrical signals into parallel signals in a time division mode, first and second time division switch groups and a space division switch group for cross connecting the signal of the optical or electrical signals, and means for generating the edited optical or electrical signals as serial signals again.
摘要翻译：公开了一种光开关装置，包括用于将串行光信号或电信号以时分模式转换为并行信号的装置，第一和第二时分开关组以及用于交叉连接光信号或电信号的信号的空分开关组，以及用于将编辑的光学或电信号再次生成为串行信号的装置。

10. 发明授权

US5121244A Optical subscriber network transmission system 失效
标题翻译：光用户网络传输系统
公开(公告)号：US5121244A
公开(公告)日：1992-06-09
申请号：US323711
申请日：1989-03-15
申请人： Yoshitaka Takasaki
发明人： Yoshitaka Takasaki
IPC分类号： H04B10/00 , H04B10/032 , H04B10/27
CPC分类号： H04J14/0291 , H04B10/032 , H04J14/0279
摘要： An optical subscriber network transmission system comprises a first optical transmission line transmitting information from center to a subscriber and a second optical transmission line transmitting information from to the subscriber to the center. A plurality of auxiliary optical transmission lines are disposed between the center and the subscriber.
摘要翻译：光用户网络传输系统包括从中心向用户发送信息的第一光传输线和从用户向中心发送信息的第二光传输线。多个辅助光传输线设置在中心和用户之间。

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