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21.发明授权Digital signal transmission system including means for converting asynchronous signals to the operating speed of a transmission line 失效数字信号传输系统包括用于将异步信号转换为传输线的操作速度的装置
公开(公告)号：US4330856A
公开(公告)日：1982-05-18
申请号：US118919
申请日：1980-02-06
申请人： Yoshitaka Takasaki , Hiroki Yoshine
发明人： Yoshitaka Takasaki , Hiroki Yoshine
摘要： In a digital signal transmission system wherein input digital signals having an arbitrary bit rate are converted into digital signals of a bit rate higher than that of the input digital signals and then transmitted through a signal format converter; in order to realize the signal format conversion in real time the signal format converter is constructed of a buffer circuit of small capacity, a circuit which writes the input signals into the buffer circuit at the bit rate of said input signals and which reads out the written signals at the bit rate of a transmission line, a circuit which distinguishes the signals to-be-read as a mark, space and empty, and an encoding circuit which converts the mark, space and empty into pulse signals discernible with the unit being a time slot of the transmission line or integral times the time slot, in dependence of the levels of pulses or the numbers of successive pulses (run length).
摘要翻译： 在具有任意比特率的输入数字信号被转换为比输入数字信号的比特率高的数字信号的数字信号传输系统中，然后通过信号格式转换器传输; 为了实时地实现信号格式转换，信号格式转换器由小容量的缓冲电路构成，电路以所述输入信号的比特率将输入信号写入缓冲电路，并读出写入 以传输线的比特率的信号，将要被读取的信号区分为标记，空格和空白的电路以及将标记，空格和空转换成可识别为单位的脉冲信号的编码电路 根据脉冲电平或连续脉冲数（运行长度），传输线的时隙或时间积分乘以时隙。
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公开(公告)号：US4123242A
公开(公告)日：1978-10-31
申请号：US815447
申请日：1977-07-13
申请人： Katsuyuki Imoto , Yoshitaka Takasaki , Masao Sumi
发明人： Katsuyuki Imoto , Yoshitaka Takasaki , Masao Sumi
IPC分类号： C03B37/027 , C03B37/025 , C03B37/029 , C03B37/03 , G02B6/00 , G05D5/00 , G05D5/03 , C03B37/02
CPC分类号： C03B37/032 , C03B37/0253 , C03B37/029 , G05D5/03 , C03B2205/90 , C03B2205/91 , C03B2205/98
摘要： Apparatus for producing an optical fiber including apparatus for heating an optical fiber preform, apparatus for drawing out the optical fiber from the optical fiber preform whose fore end part has been made molten by the heating and for taking up the drawn out fiber, apparatus for causing a gas to flow along the outer peripheral surface of the molten part of the optical fiber preform, and apparatus for controlling both the flow rate of the gas and the drawing-out speed of the optical fiber according to a fluctuation in the diameter of the optical fiber. The controlling apparatus includes (i) a fiber diameter detector and a fiber diameter measuring device which detect and measure the diameter of the optical fiber drawn out, (ii) a fiber diameter controlling circuit which receives an output of the fiber diameter measuring device and a reference value for specifying a fiber diameter and which compares them so as to deliver an output for controlling the fiber diameter, (iii) a gas flow rate controller which is driven by the output for controlling the fiber diameter, and (iv) a take-up speed controller which is driven by the output for controlling the fiber diameter. With this apparatus, the optical fiber of uniform diameter can be easily produced.
摘要翻译： 用于制造光纤的设备，包括用于加热光纤预制棒的设备，用于从前端部分已经通过加热熔化并用于吸收拉出的光纤的光纤预制棒拉出光纤的设备，用于引起 沿着光纤预制棒的熔融部的外周面流动的气体，以及根据光学直径的波动的波动，控制气体的流量和光纤的拉出速度的装置 纤维。 控制装置包括：（i）光纤直径检测器和纤维直径测量装置，其检测并测量拉出的光纤的直径，（ii）光纤直径控制电路，其接收纤维直径测量装置的输出和 用于指定纤维直径的参考值，并将它们进行比较以输出用于控制纤维直径的输出;（iii）由用于控制纤维直径的输出驱动的气体流量控制器，以及（iv） 上升速度控制器由用于控制纤维直径的输出驱动。 通过该装置，能够容易地制造直径均匀的光纤。
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公开(公告)号：US4004253A
公开(公告)日：1977-01-18
申请号：US587894
申请日：1975-06-18
摘要： An inductorless variable equalizer comprises input and output terminals. A first transmission network is situated in the forward path between the input and output terminals and has a variable transfer coefficient; second and third transmission networks are situated in the feedback and feedforward paths, respectively, between the input and output terminals. Each of these networks has a fixed transfer coefficient and the transfer coefficients of the feedback and feedforward networks having polarities opposite each other.
摘要翻译： 无电感可变均衡器包括输入和输出端子。 第一传输网络位于输入和输出端之间的前向路径中，具有可变传输系数; 第二和第三传输网络分别位于输入和输出端之间的反馈和前馈路径中。 这些网络中的每一个具有固定的传输系数和具有彼此相反的极性的反馈和前馈网络的传输系数。
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公开(公告)号：US5418405A
公开(公告)日：1995-05-23
申请号：US940235
申请日：1992-09-03
申请人： Yoshitaka Takasaki
发明人： Yoshitaka Takasaki
CPC分类号： H04H20/76 , H04H20/42 , H04H20/69 , Y10T307/25
摘要： Installation paths for routing cables or wire in a distribution service area emanate from a center point and extend outwardly to several distribution areas. Each distribution area has a plurality of subscriber stations with subscriber line extending between a distribution point for the distribution area and each of the stations. The distribution points for each of the distribution areas are connected to the center point of the distribution service areas by feeder lines. The installation paths that extend through the distribution areas adjacent the center point have both feeder lines and subscriber lines. Thus, the total length of the installation path network is shortened by the sharing of the installation paths. Further, the distribution points for each of the distribution areas is selected to be the one closest to the center point for the distribution system.
摘要翻译： 在分配服务区域布线电缆或电线的安装路径从中心点发出并向外延伸到多个分配区域。 每个分配区域具有多个用户站，用户线在分配区域的分配点和每个站之间延伸。 每个分配区域的分布点通过馈线连接到分配服务区域的中心点。 延伸通过与中心点相邻的分配区域的安装路径具有馈线和用户线路。 因此，通过共享安装路径来缩短安装路径网络的总长度。 此外，每个分配区域的分布点被选择为最接近分配系统的中心点的分布点。
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公开(公告)号：US5414739A
公开(公告)日：1995-05-09
申请号：US974992
申请日：1992-11-12
申请人： Naoya Kobayashi , Yoshitaka Takasaki , Sadao Mizokawa , Hisayuki Maruyama , Hiroshi Mabuchi , Eiichi Amada
发明人： Naoya Kobayashi , Yoshitaka Takasaki , Sadao Mizokawa , Hisayuki Maruyama , Hiroshi Mabuchi , Eiichi Amada
摘要： A transmission system which includes a plurality of reproduction nodes connected to each other in a cascade connection via a communication line. Each node includes a timing extraction circuit for extracting a timing signal from a signal received via the communication line, a discriminating circuit for converting the received signal into a digital signal according to the timing signal, and a processing circuit for processing, based on the timing signal, the digital signal outputted from the discriminating circuit and outputting the processed digital signal to the communication line. The timing extraction circuit includes a signal delay unit for supplying the timing signal with a signal delay time greater than a delay time occurring in the processing circuit.
摘要翻译： 一种传输系统，包括经由通信线路以级联方式彼此连接的多个再现节点。 每个节点包括定时提取电路，用于从经由通信线路接收的信号中提取定时信号;判别电路，用于根据定时信号将接收信号转换成数字信号;以及处理电路， 信号，从识别电路输出的数字信号并将经处理的数字信号输出到通信线路。 定时提取电路包括用于向定时信号提供大于在处理电路中出现的延迟时间的信号延迟时间的信号延迟单元。
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公开(公告)号：US5369517A
公开(公告)日：1994-11-29
申请号：US806386
申请日：1991-12-13
申请人： Yoshitaka Takasaki
发明人： Yoshitaka Takasaki
CPC分类号： H04J14/0291 , H04B10/032 , H04J14/0279
摘要： The invention relates to an optical subscriber network transmission system and, in particular, means for smoothly enlarging the transmission capacity in such system. The invention shortens the time of service interruption during changeover of transmission line capacities by use of a spare optical transmission line. Installation of a low cost spare optical fiber line permits testing of transmission lines without service interruption. Successive changeovers are performed using the auxiliary fiber keeping service interruption to a minimum.
摘要翻译： 本发明涉及一种光用户网络传输系统，尤其涉及用于在这种系统中平滑地扩大传输容量的装置。 本发明通过使用备用光传输线来缩短传输线容量切换期间的业务中断时间。 安装低成本备用光纤线路可以对传输线路进行测试，而不会中断业务。 使用辅助光纤保持业务中断进行连续切换。
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公开(公告)号：US5175639A
公开(公告)日：1992-12-29
申请号：US512628
申请日：1990-04-19
申请人： Yoshitaka Takasaki
发明人： Yoshitaka Takasaki
IPC分类号： H04B10/00
CPC分类号： H04J14/0291 , H04B10/032 , H04J14/0279
摘要： The present invention relates to an optical subscriber network transmission system which comprises a first optical transmission line whiich transmits information from a center to a subscriber, a second optical transmission line which transmits information from the subscriber to the center, and an auxiliary optical transmission line which is laid between the center and the subscriber.
摘要翻译： 本发明涉及一种光用户网络传输系统，其包括从中心向用户发送信息的第一光传输线，从用户向中心发送信息的第二光传输线，以及辅助光传输线， 位于中心和用户之间。
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28.发明授权Quantum state control apparatus, optical receiver and optical communication system 失效量子态控制装置，光接收机和光通信系统
公开(公告)号：US5113524A
公开(公告)日：1992-05-12
申请号：US412510
申请日：1989-09-27
IPC分类号： H04B10/148
CPC分类号： H04B10/61 , H04B10/614 , H04B10/6151 , H04B10/63
摘要： An optical receiver includes a squeezer for changing the quantum state of a signal lightwave to a squeezed state, a slave laser put in an injection locking state by the signal lightwave outputted from the squeezer, and an optical homodyne detector for carrying out optical homodyne detection for the signal lightwave outputted from the slave laser.
摘要翻译： 光接收机包括用于将信号光波的量子态改变为挤压状态的挤压器，由从挤压机输出的信号光波进入注入锁定状态的从属激光器和用于执行光学零差检测的光学零差检测器 从从激光器输出的信号光波。
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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
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。
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公开(公告)号：US4503546A
公开(公告)日：1985-03-05
申请号：US471128
申请日：1983-03-01
IPC分类号： H03M5/16 , H04B10/07 , H04B10/524 , H04B10/556 , H04B10/564 , H04L25/49 , H04L25/493 , H03K13/02
CPC分类号： H04L25/4906 , H04L25/49
摘要： A two-level alternate mark inversion signal transmission system wherein binary pulses of "1" and "0" levels are converted into a pulse signal in which one coded information value has its polarity inverted at a period T and the other has its polarity reversed at a period T/2, and the converted signal is transmitted. In order to facilitate an automatic gain control operation and the proper and reliable extraction of a timing signal on the receiving side of the system even when the zero binary pulses have successively arisen in the signal processed on the transmitting side, the alternate mark inversion signal is converted into a specified code (zero substitution) signal when the zero binary pulses have succeeded one another for a predetermined number of times, while on the receiving side, a received signal is subjected to duobinary shaping, whereupon the zero substitution part is detected for removal by utilizing the rules of the zero substitution process and the alternate mark inversion signal.
摘要翻译： 一种二电平交替标记反转信号传输系统，其中将“1”和“0”电平的二进制脉冲转换为脉冲信号，其中一个编码信息值的极性在周期T被反转，另一个的极性反转为 周期T / 2，并且转换的信号被发送。 为了便于自动增益控制操作，并且即使当在发送侧处理的信号中连续出现零二进制脉冲时，系统的接收侧的定时信号的适当可靠的提取，交替标记反转信号 当零二进制脉冲彼此成功达预定次数时，转换为指定代码（零替换）信号，而在接收侧，对接收信号进行二进制整形，由此检测零替换部分以进行去除 通过利用零替换过程和替代标记反转信号的规则。
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