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。

公开(公告)号：US07116917B2

公开(公告)日：2006-10-03

申请号：US10185407

申请日：2002-06-26

申请人： Yutaka Miyamoto ,  Akira Hirano ,  Shoichiro Kuwahara ,  Masahito Tomizawa

发明人： Yutaka Miyamoto ,  Akira Hirano ,  Shoichiro Kuwahara ,  Masahito Tomizawa

IPC分类号： H04B10/12

CPC分类号： H04B10/5561 ,  H04B10/5051 ,  H04B10/5055 ,  H04B10/516 ,  H04B10/5162 ,  H04B10/677 ,  H04B2210/517 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0279

摘要： The present invention suppresses to a minimum the degradation of the transmission quality caused by chromatic dispersion characteristic of an optical transmission medium, and the interplay between the chromatic dispersion and non-linear optical effects in dense WDM transport systems. A baseband input data signal is pre-coded in advance by a pre-coding unit, phase modulation is carried out using a pre-coded signal by the optical phase modulating unit, and the phase modulated optical signal is converted to an RZ intensity modulated signal by the optical filter unit that performs phase-shift-keying to amplitude-shift-keying conversion. For example, an optical phase modulating unit generates an encoded DPSK phase modulated signal using a differential phase shirt keying (DPSK) format, and a phase modulated signal is converted to an RZ intensity modulated signal by the optical filter unit disposed downstream of the optical phase modulating unit.

公开(公告)号：US07424230B2

公开(公告)日：2008-09-09

申请号：US10308588

申请日：2002-12-03

申请人： Masahito Tomizawa ,  Akira Hirano ,  Yoshiaki Kisaka ,  Yutaka Miyamoto

发明人： Masahito Tomizawa ,  Akira Hirano ,  Yoshiaki Kisaka ,  Yutaka Miyamoto

IPC分类号： H04B10/06 ,  H04L25/03 ,  H03M13/00

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。

公开(公告)号：US07995930B2

公开(公告)日：2011-08-09

申请号：US12092031

申请日：2006-05-19

申请人： Mikio Yoneyama ,  Fumiaki Saitou ,  Shigeru Ono ,  Yosuke Takeuchi ,  Kazushige Yonenaga ,  Shoichiro Kuwahara ,  Eiji Yoshida ,  Yutaka Miyamoto ,  Hiroto Kawakami

发明人： Mikio Yoneyama ,  Fumiaki Saitou ,  Shigeru Ono ,  Yosuke Takeuchi ,  Kazushige Yonenaga ,  Shoichiro Kuwahara ,  Eiji Yoshida ,  Yutaka Miyamoto ,  Hiroto Kawakami

IPC分类号： H04B10/06

CPC分类号： H04L27/2071 ,  G02F1/0327 ,  H04B10/677 ,  H04L27/223

摘要： The present invention relates to an optical receiver, in which the transmittance of a Mach-Zehnder interferometer can be locked at a normal operation point in a simple structure and control. A transmittance detecting circuit and a minute modulation signal detecting circuit are provided in parallel after a balanced optical receiver, and a switch is selectively connectable either a minute modulation signal detecting circuit and a transmittance detecting circuit. In the initial stage of frequency pull-in, the switch is set to connect the transmittance detecting circuit to the synchronous detection circuit. If the transmittance detecting circuit detects that the transmittance of the Mach-Zehnder interferometer at the carrier frequency becomes a desired transmittance, the connection of the switch is switched from the transmittance detecting circuit to the minute modulation signal detecting circuit.

摘要翻译： 光接收机技术领域本发明涉及一种光接收机，其中可以以简单的结构和控制将马赫 - 曾德干涉仪的透射率锁定在正常操作点。 在平衡光接收器之后并联设置透射检测电路和微调信号检测电路，并且开关可选择性地连接微调制信号检测电路和透射检测电路。 在频率拉入的初始阶段，开关被设置为将透射检测电路连接到同步检测电路。 如果透射检测电路检测到载波频率下的马赫 - 策德尔干涉仪的透射率变为期望的透射率，则将开关的连接从透射检测电路切换到微调制信号检测电路。

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。

公开(公告)号：US08254789B2

公开(公告)日：2012-08-28

申请号：US10530628

申请日：2003-09-23

申请人： Arnold Mattheus ,  Yutaka Miyamoto ,  Masahito Tomizawa

发明人： Arnold Mattheus ,  Yutaka Miyamoto ,  Masahito Tomizawa

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。

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

IPC分类号： H04J14/00 ,  H04J3/00 ,  H04J14/02

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。

公开(公告)号：US08135285B2

公开(公告)日：2012-03-13

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

IPC分类号： H04B10/00

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。

公开(公告)号：US07970008B2

公开(公告)日：2011-06-28

申请号：US12438056

申请日：2007-09-21

申请人： Yoshiaki Kisaka ,  Shigeki Aisawa ,  Tetsuo Takahashi ,  Takuya Ohara ,  Masafumi Koga ,  Masahito Tomizawa ,  Yutaka Miyamoto

发明人： Yoshiaki Kisaka ,  Shigeki Aisawa ,  Tetsuo Takahashi ,  Takuya Ohara ,  Masafumi Koga ,  Masahito Tomizawa ,  Yutaka Miyamoto

IPC分类号： H04J3/22

CPC分类号： H04J3/1664 ,  H04J3/07 ,  H04L25/14

摘要： A multiplexing transmission system for adding a management overhead to a client signal, and transparently accommodating or multiplexing the client signal to transmit it is provided. The multiplexing transmission system: accommodates a plurality of client signals of different bit rates including a client signal of a bit rate that is not an integral multiple or an integral submultiple of a bit rate of other client signal, and performs rate adjustment for a part or the whole of the plurality of client signals such that the bit rate of each client signal becomes an integral multiple or integral submultiple of the bit rate of other client signal.

摘要翻译： 提供了一种用于将客户信号的管理开销加入并且透明地容纳或多路复用客户信号以进行传输的复用传输系统。 复用传输系统：容纳不同比特率的多个客户端信号，包括不是整数倍的比特率的客户端信号或其他客户端信号的比特率的整数倍，并且对一部分进行速率调整， 整个多个客户端信号，使得每个客户端信号的比特率变成其他客户端信号的比特率的整数倍或整数倍。

公开(公告)号：US20100080245A1

公开(公告)日：2010-04-01

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 ,  Yasuyuki Miura ,  Tadanobu Nikaido ,  Masahito Tomizawa

发明人： Yoshiaki Kisaka ,  Takuya Ohara ,  Shigeki Aisawa ,  Yutaka Miyamoto ,  Kazuhito Takei ,  Yasuyuki Endoh ,  Yasuyuki Miura ,  Tadanobu Nikaido ,  Masahito Tomizawa

IPC分类号： H04J3/22

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。