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公开(公告)号：US20130004168A1
公开(公告)日：2013-01-03
申请号：US13634033
申请日：2011-03-11
申请人： Takuya Ohara , Takashi Ono , Shigeki Aisawa , Masahito Tomizawa , Hiroyuki Honma , Satoru Saitoh , Masahiro Shioda
发明人： Takuya Ohara , Takashi Ono , Shigeki Aisawa , Masahito Tomizawa , Hiroyuki Honma , Satoru Saitoh , Masahiro Shioda
IPC分类号： H04J14/00
CPC分类号： H04J3/1658 , H04J3/0638
摘要： In an apparatus for accommodating and multiplexing asynchronous client signals in which an idle signal is defined, the transmission side transmits client signals after synchronizing the client signals by inserting or removing, with reference to a specific client signal, an idle signal to/from the same type of another client signal, and in the receiving side, a PLL part is shared by recovering a clock from a client signal and distributing the clock for another client signal.
摘要翻译： 在用于容纳和复用其中定义空闲信号的异步客户端信号的装置中，发送侧在通过相对于特定客户端信号插入或移除与其相同的空闲信号之后，在同步客户端信号之后发送客户端信号 类型的另一客户端信号，并且在接收侧，通过从客户端信号恢复时钟并且将时钟分配给另一个客户端信号来共享PLL部分。
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公开(公告)号：US20090162061A1
公开(公告)日：2009-06-25
申请号：US12096551
申请日：2006-12-21
申请人： Yoshiaki Kisaka , Shigeki Aisawa , Yutaka Miyamoto , Masahito Tomizawa , Yasuyuki Endoh , Kazuhito Takei
发明人： Yoshiaki Kisaka , Shigeki Aisawa , Yutaka Miyamoto , Masahito Tomizawa , Yasuyuki Endoh , Kazuhito Takei
CPC分类号： H04J3/1652 , H04J3/07 , H04J2203/0085
摘要： An optical transmission system for performing frequency synchronization even with a client signal with low frequency accuracy, and for transmitting thereof by accommodating/multiplexing without causing a bit slip. A new overhead is added to the entire client signal, and the signal including the new overhead being stuffed is transmitted in conjunction with a plurality of stuffing bits as an optical signal wherein a data storing bit for a negative stuffing, a stuffing information notification bit, and a stuff bits inserting bit for a positive stuffing in the payload are defined in plurality as stuffing bits for adjusting clock frequencies of the client signal in this new overhead.
摘要翻译： 一种光传输系统，用于即使使用低频精度的客户端信号进行频率同步，也可以通过容纳/多路复用而不产生位滑动进行发送。 在整个客户端信号中增加新的开销，并且包括填充的新开销的信号与多个填充位一起作为光信号发送，其中，用于负填充的数据存储位，填充信息通知位， 并且用于在有效载荷中的正填充的填充比特插入位被定义为多个作为填充位，用于在该新开销中调整客户端信号的时钟频率。
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3.发明授权公开(公告)号：US07536108B2
公开(公告)日：2009-05-19
申请号：US10185486
申请日：2002-06-26
申请人： Akira Hirano , Yutaka Miyamoto , Masahito Tomizawa , Shoichiro Kuwahara , Hiroshi Takahashi , Yasuyuki Inoue
发明人： Akira Hirano , Yutaka Miyamoto , Masahito Tomizawa , Shoichiro Kuwahara , Hiroshi Takahashi , Yasuyuki Inoue
IPC分类号： H04B10/12
CPC分类号： H04B10/25133 , H04B10/25137
摘要： The present invention relates to an automatic dispersion compensating optical link system. Carrier suppressed RZ encoded optical signals generated using carrier suppressing means and binary NRZ code or partial response code, or carrier suppressed clock signals generated using carrier suppressing means and clock signals are transmitted on an optical transmission line. Two bands of the carrier suppressed RZ encoded optical signals or carrier suppressed clock signals transmitted on the optical transmission line are each divided into bands and are received. Phase information of the respective basebands is extracted from the binary NRZ code components or partial response code components or clock signals in each band and the relative phase difference thereof is detected. The chromatic dispersion value of the optical transmission line is then calculated from the relative phase difference.
摘要翻译： 本发明涉及自动色散补偿光链路系统。 载波抑制使用载波抑制装置产生的RZ编码光信号和二进制NRZ码或部分响应码，或者使用载波抑制装置和时钟信号产生的载波抑制时钟信号在光传输线路上传输。 载波抑制RZ编码的光信号的两个频带或在光传输线路上传输的载波抑制时钟信号各自被分成频带并被接收。 从每个频带中的二进制NRZ码分量或部分响应码分量或时钟信号中提取各个基带的相位信息，并检测其相对相位差。 然后从相对相位差计算光传输线的色散值。
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公开(公告)号：US07424230B2
公开(公告)日：2008-09-09
申请号：US10308588
申请日：2002-12-03
CPC分类号： H04L25/062
摘要： This digital transmission system is provided with a transmitting apparatus that transmits digital data signals and a receiving apparatus that receives the digital data signals transmitted over a transmission path, compares the signals with a predetermined threshold value, and performs decision reproduction. The receiving apparatus is formed by: decision circuits that receive the input of reception signals, discriminate between the respective reception signals using a plurality of threshold values, and output decision results; and a selection circuit that, based on the decision results output from the decision circuit, selects one decision result from one threshold value from among the decision results from each of the plurality of threshold values, and outputs the selected decision result. As a result, the receiving apparatus is able to individually select which decision result to use from which threshold value.
摘要翻译： 该数字传输系统设置有发送数字数据信号的发送装置和接收通过传输路径发送的数字数据信号的接收装置，将该信号与规定的阈值进行比较，进行判定再现。 接收装置由以下部分构成：接收接收信号的输入的判定电路，使用多个阈值对各个接收信号进行识别，并输出判定结果; 以及选择电路，其基于从所述判定电路输出的判定结果，从所述多个阈值中的每一个的判定结果中从一个阈值中选择一个判定结果，并输出所选择的判定结果。 结果，接收装置能够从哪个阈值单独地选择使用哪个判定结果。
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公开(公告)号：US07095758B2
公开(公告)日：2006-08-22
申请号：US09882324
申请日：2001-06-15
申请人： Masahito Tomizawa , Takashi Ono , Yoshiaki Kisaka
发明人： Masahito Tomizawa , Takashi Ono , Yoshiaki Kisaka
IPC分类号： H04J3/04
CPC分类号： H04J3/047 , H04J3/1611 , H04J2203/0089
摘要： A multiplexing and transmission apparatus including a transmitter and a receiver is provided. The transmitter includes a control pulses generating circuit generating control pulses having different phases; channel-frame generating circuits each outputting low-speed frame signal in synchronization with the control pulse; and a multiplexing circuit multiplexing the low-speed frame signals into the high-speed serial signal. The receiver includes a demultiplexer demultiplexing high-speed serial signal into low-speed frame signals; channel-frame synchronization circuits each generating a frame pulse corresponding to the low-speed frame signal; a switching circuit switching each of the low-speed frame signals to an appropriate port of the channel; and a switch controller circuit controlling the switching circuit.
摘要翻译： 提供了包括发射机和接收机的复用和传输设备。 发射机包括产生具有不同相位的控制脉冲的控制脉冲发生电路; 各通道帧发生电路，与控制脉冲同步地输出低速帧信号; 以及将低速帧信号复用成高速串行信号的复用电路。 接收机包括解复用器将高速串行信号解复用为低速帧信号; 每个帧同步电路产生与低速帧信号对应的帧脉冲; 切换电路将每个低速帧信号切换到信道的适当端口; 以及控制开关电路的开关控制电路。
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公开(公告)号：US08977120B2
公开(公告)日：2015-03-10
申请号：US13634033
申请日：2011-03-11
申请人： Takuya Ohara , Takashi Ono , Shigeki Aisawa , Masahito Tomizawa , Hiroyuki Honma , Satoru Saitoh , Masahiro Shioda
发明人： Takuya Ohara , Takashi Ono , Shigeki Aisawa , Masahito Tomizawa , Hiroyuki Honma , Satoru Saitoh , Masahiro Shioda
CPC分类号： H04J3/1658 , H04J3/0638
摘要： In an apparatus for accommodating and multiplexing asynchronous client signals in which an idle signal is defined, the transmission side transmits client signals after synchronizing the client signals by inserting or removing, with reference to a specific client signal, an idle signal to/from the same type of another client signal, and in the receiving side, a PLL part is shared by recovering a clock from a client signal and distributing the clock for another client signal.
摘要翻译： 在用于容纳和复用其中定义空闲信号的异步客户端信号的装置中，发送侧在通过相对于特定客户端信号插入或移除与其相同的空闲信号之后，在同步客户端信号之后发送客户端信号 类型的另一客户端信号，并且在接收侧，通过从客户端信号恢复时钟并且将时钟分配给另一个客户端信号来共享PLL部分。
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公开(公告)号：US20130259481A1
公开(公告)日：2013-10-03
申请号：US13992573
申请日：2011-12-09
IPC分类号： H04J14/02
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.
摘要翻译： 一种用于在传输帧中容纳客户端信号的客户端信号映射电路，包括：缓冲单元，被配置为临时存储客户端信号; 缓冲器使用量监视单元，被配置为报告缓冲单元的使用量; 填补处理确定单元，被配置为将缓冲单元的使用量与预定参考值进行比较，以及伪随机序列信号和比较结果; 开销插入单元，被配置为向从缓冲器单元读取的客户端信号添加开销以形成传输帧; 以及读取控制单元，被配置为基于所述填充处理确定单元的确定来执行从所述缓冲单元读取所述客户端信号的控制。
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公开(公告)号：US08514881B2
公开(公告)日：2013-08-20
申请号：US12522895
申请日：2008-01-16
申请人： Yoshiaki Kisaka , Takuya OHara , Shigeki Aisawa , Yutaka Miyamoto , Kazuhito Takei , Yasuyuki Endoh , Katsuyoshi Miura , Tadanobu Nikaido , Masahito Tomizawa
发明人： Yoshiaki Kisaka , Takuya OHara , Shigeki Aisawa , Yutaka Miyamoto , Kazuhito Takei , Yasuyuki Endoh , Katsuyoshi Miura , Tadanobu Nikaido , Masahito Tomizawa
IPC分类号： H04J3/16
CPC分类号： H04J3/1664 , H04J3/07 , H04J3/14 , H04J2203/0085 , H04J2203/0089 , H04L1/24
摘要： A digital transmission system includes at least a client device and a transmission device, and rate-adjusts the client signal transmitted from the client device to the transmission device before accommodating/multiplexing the signal in a frame. The transmission device includes a rate adjusting unit and a frame processing unit. The rate adjusting unit encapsulates the client signal by using a predetermined frame structure, inserts an idle pattern if necessary, and performs rate adjustment into the bit rate which can be contained in the frame. The frame processing unit accommodates/multiplexes the signal after the rate adjustment. The digital transmission system inserts a bit string of the client signal directly in a payload area of the digital frame, or accommodates and multiplexes it. Alternatively, a specific pattern is accommodated in the payload area, or accommodated and multiplexed after performing a reversible digital signal processing.
摘要翻译： 数字传输系统至少包括客户端设备和传输设备，并且在将信号容纳/复用为一帧之前，将从客户端设备发送的客户端信号速率调整到传输设备。 传输设备包括速率调整单元和帧处理单元。 速率调整单元通过使用预定的帧结构来封装客户端信号，如果需要则插入空闲模式，并且进行速率调整到可以包含在帧中的比特率。 帧处理单元容纳/复用速率调整后的信号。 数字传输系统将客户端信号的位串直接插入数字帧的有效载荷区域，或者容纳和复用它。 或者，特定模式被容纳在有效负载区域中，或者在执行可逆数字信号处理之后被容纳和多路复用。
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公开(公告)号：US08254789B2
公开(公告)日：2012-08-28
申请号：US10530628
申请日：2003-09-23
IPC分类号： H04B10/00
CPC分类号： H04B10/2525 , G02F1/0115 , G02F1/0147
摘要： A device and method for adjusting the chromatic dispersion in an optical transmission system includes an optical element having a temperature-dependent chromatic dispersion. The device and method further include a device for adjusting a temperature or a temperature distribution of at least one region of the optical element for providing a predefined chromatic dispersion of the optical element. Therefore, the chromatic dispersion of the optical element may be regulated along an optical transmission path.
摘要翻译： 用于调整光传输系统中的色散的装置和方法包括具有温度依赖色散的光学元件。 该装置和方法还包括用于调节光学元件的至少一个区域的温度或温度分布的装置，用于提供光学元件的预定色散。 因此，可以沿着光传输路径来调节光学元件的色散。
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10.发明授权公开(公告)号：US07734194B2
公开(公告)日：2010-06-08
申请号：US10555710
申请日：2005-03-17
申请人： Kazushige Yonenaga , Mikio Yoneyama , Masahito Tomizawa , Akira Hirano , Shoichiro Kuwahara , Tomoyoshi Kataoka , Akihide Sano , Gentaro Funatsu
发明人： Kazushige Yonenaga , Mikio Yoneyama , Masahito Tomizawa , Akira Hirano , Shoichiro Kuwahara , Tomoyoshi Kataoka , Akihide Sano , Gentaro Funatsu
IPC分类号： H04B10/06
CPC分类号： H04B10/58 , H04B10/5051 , H04B10/5055 , H04B10/50575 , H04B10/54 , H04B10/66
摘要： An optical transmission system is provided in which the optimum operating point of a Mach-Zehnder interferometer, matched to the optical frequency of the light source on the transmitting side, can be set. The optical receiver (2) has an infinitesimal-modulated signal component detection circuit (222), which uses the signal train output from a balanced detection circuit (221) to detect the infinitesimal-modulated signal component applied to the phase adjustment terminal (201) of an MZI (200) by an infinitesimal-modulated signal oscillation circuit (224); a synchronous detection circuit (223), which synchronously detects the infinitesimal-modulated signals output from the infinitesimal-modulated signal component detection circuit (222) and infinitesimal-modulated signal oscillation circuit (224) and detects the error signal component arising from the shift between the optical signal carrier frequency and the optical frequency characteristic of the MZI (200); and a controller (207), which outputs a control signal to adjust the phase difference between two split optical signals output from the MZI (200) so as to correct the shift amount.
摘要翻译： 提供了一种光传输系统，其中可以设置与发射侧的光源的光频率相匹配的马赫 - 曾德干涉仪的最佳工作点。 光接收器（2）具有无穷小调制信号分量检测电路（222），其使用从平衡检测电路（221）输出的信号串来检测施加到相位调整端子（201）的无穷小调制信号分量， 通过无穷小调制信号振荡电路（224）的MZI（200）; 同步检测电路（223），其同步地检测从无穷小调制信号分量检测电路（222）和无穷小调制信号振荡电路（224）输出的无穷小调制信号，并检测由 MZI（200）的光信号载波频率和光频特性; 以及控制器（207），其输出控制信号以调整从MZI（200）输出的两个分离光信号之间的相位差，以校正偏移量。
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