公开(公告)号：US07245413B2

公开(公告)日：2007-07-17

申请号：US11527561

申请日：2006-09-27

申请人： Akira Miura ,  Kenji Uchida ,  Katsuya Ikezawa ,  Hiroyuki Matsuura ,  Akira Toyama ,  Toshiaki Kobayashi ,  Tsuyoshi Yakihara ,  Kousuke Doi

发明人： Akira Miura ,  Kenji Uchida ,  Katsuya Ikezawa ,  Hiroyuki Matsuura ,  Akira Toyama ,  Toshiaki Kobayashi ,  Tsuyoshi Yakihara ,  Kousuke Doi

IPC分类号： G02F1/03

CPC分类号： G02F1/0123 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2202/20 ,  G02F2203/21

摘要： A light modulation apparatus including a Mach-Zehnder type light modulator, a driver for modulator outputting a control signal according to an input electric signal, a light branching circuit branching the output light signal, and a bias control circuit applying a bias voltage to the light modulator based on the branched light signal, the apparatus further comprises: a burst pause state detection circuit detecting a pause state of a burst signal included in the input electric signal; a photoelectric transducer converting an output light signal branched by the light branching circuit into an electric signal; a sampling circuit extracting the electric signal converted while the pause state is detected by the burst pause state; and a bias voltage adjustment circuit adjusting a bias voltage value of the bias voltage based on a voltage level of the extracted electric signal.

摘要翻译： 一种光调制装置，包括马赫 - 曾德尔型光调制器，用于根据输入电信号输出控制信号的调制器的驱动器，分支输出光信号的光分支电路和向该光施加偏置电压的偏置控制电路 基于分支光信号的调制器，该装置还包括：突发暂停状态检测电路，检测包括在输入电信号中的突发信号的暂停状态; 将由所述光分支电路分支的输出光信号转换成电信号的光电变换器; 抽取电路，提取在突发暂停状态下检测到暂停状态时转换的电信号; 以及偏置电压调整电路，其基于所提取的电信号的电压电平来调整所述偏置电压的偏置电压值。

公开(公告)号：US20070070488A1

公开(公告)日：2007-03-29

申请号：US11527561

申请日：2006-09-27

申请人： Akira Miura ,  Kenji Uchida ,  Katsuya Ikezawa ,  Hiroyuki Matsuura ,  Akira Toyama ,  Toshiaki Kobayashi ,  Tsuyoshi Yakihara ,  Kousuke Doi

发明人： Akira Miura ,  Kenji Uchida ,  Katsuya Ikezawa ,  Hiroyuki Matsuura ,  Akira Toyama ,  Toshiaki Kobayashi ,  Tsuyoshi Yakihara ,  Kousuke Doi

IPC分类号： G02F1/03

CPC分类号： G02F1/0123 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2202/20 ,  G02F2203/21

摘要： A light modulation apparatus including a Mach-Zehnder type light modulator, a driver for modulator outputting a control signal according to an input electric signal, a light branching circuit branching the output light signal, and a bias control circuit applying a bias voltage to the light modulator based on the branched light signal, the apparatus further comprises: a burst pause state detection circuit detecting a pause state of a burst signal included in the input electric signal; a photoelectric transducer converting an output light signal branched by the light branching circuit into an electric signal; a sampling circuit extracting the electric signal converted while the pause state is detected by the burst pause state; and a bias voltage adjustment circuit adjusting a bias voltage value of the bias voltage based on a voltage level of the extracted electric signal.

公开(公告)号：US07522660B2

公开(公告)日：2009-04-21

申请号：US10897073

申请日：2004-07-23

申请人： Chie Sato ,  Shinji Kobayashi ,  Hirotoshi Kodaka ,  Ikurou Aoki ,  Kousuke Doi ,  Akira Toyama ,  Morio Wada ,  Hiroyuki Matsuura ,  Hiroshi Sugawara ,  Masamichi Ohashi ,  Hironori Okita ,  Yasukazu Akasaka ,  Tsuyoshi Yakihara ,  Akira Miura

发明人： Chie Sato ,  Shinji Kobayashi ,  Hirotoshi Kodaka ,  Ikurou Aoki ,  Kousuke Doi ,  Akira Toyama ,  Morio Wada ,  Hiroyuki Matsuura ,  Hiroshi Sugawara ,  Masamichi Ohashi ,  Hironori Okita ,  Yasukazu Akasaka ,  Tsuyoshi Yakihara ,  Akira Miura

IPC分类号： H04B3/46

CPC分类号： G01R31/3171 ,  G01R31/31928

摘要： An object of this invention is to realize a pulse pattern generating apparatus that outputs a test signal of high waveform quality even when the shape of an eye pattern is changed. This invention is an improvement of a pulse pattern generating apparatus that generates a test signal of a predetermined pattern by using plural digital-analog converters and outputs the test signal to a test subject. The apparatus includes: a parameter setting unit for setting values of plural parameters that determine the shape of an eye pattern of the test signal; a storage unit for storing output values to the digital-analog converters corresponding to the values of the parameters; an arithmetic operation unit for calculating output values to the digital-analog converters from the values of the parameters from the parameter setting unit and the output values in the storage unit; and a voltage value setting unit for setting, for the digital-analog converters, voltage values to be outputted from the digital-analog converters on the basis of the result of calculation by the arithmetic operation unit.

摘要翻译： 本发明的一个目的是实现即使当眼图的形状改变时也输出高波形质量的测试信号的脉冲图形生成装置。 本发明是通过使用多个数模转换器生成预定模式的测试信号并将测试信号输出给测试对象的脉冲图案生成装置的改进。 该装置包括：参数设置单元，用于设置确定测试信号的眼图的形状的多个参数的值; 存储单元，用于根据参数的值存储对数模转换器的输出值; 算术运算单元，用于根据来自参数设定单元的参数值和存储单元中的输出值计算出数字模拟转换器的输出值; 以及电压值设定单元，用于根据算术运算单元的运算结果，对数模转换器设定从数模转换器输出的电压值。

公开(公告)号：US20050058190A1

公开(公告)日：2005-03-17

申请号：US10897073

申请日：2004-07-23

申请人： Chie Sato ,  Shinji Kobayashi ,  Hirotoshi Kodaka ,  Ikurou Aoki ,  Kousuke Doi ,  Akira Toyama ,  Morio Wada ,  Hiroyuki Matsuura ,  Hiroshi Sugawara ,  Masamichi Ohashi ,  Hironori Okita ,  Yasukazu Akasaka ,  Tsuyoshi Yakihara ,  Akira Miura

发明人： Chie Sato ,  Shinji Kobayashi ,  Hirotoshi Kodaka ,  Ikurou Aoki ,  Kousuke Doi ,  Akira Toyama ,  Morio Wada ,  Hiroyuki Matsuura ,  Hiroshi Sugawara ,  Masamichi Ohashi ,  Hironori Okita ,  Yasukazu Akasaka ,  Tsuyoshi Yakihara ,  Akira Miura

IPC分类号： G01R31/319 ,  H03K3/84 ,  H04L25/02 ,  H04B17/00

CPC分类号： G01R31/3171 ,  G01R31/31928

摘要： An object of this invention is to realize a pulse pattern generating apparatus that outputs a test signal of high waveform quality even when the shape of an eye pattern is changed. This invention is an improvement of a pulse pattern generating apparatus that generates a test signal of a predetermined pattern by using plural digital-analog converters and outputs the test signal to a test subject. The apparatus includes: a parameter setting unit for setting values of plural parameters that determine the shape of an eye pattern of the test signal; a storage unit for storing output values to the digital-analog converters corresponding to the values of the parameters; an arithmetic operation unit for calculating output values to the digital-analog converters from the values of the parameters from the parameter setting unit and the output values in the storage unit; and a voltage value setting unit for setting, for the digital-analog converters, voltage values to be outputted from the digital-analog converters on the basis of the result of calculation by the arithmetic operation unit.

摘要翻译： 本发明的一个目的是实现即使当眼图的形状改变时也输出高波形质量的测试信号的脉冲图形生成装置。 本发明是通过使用多个数模转换器生成预定模式的测试信号并将测试信号输出给测试对象的脉冲图案生成装置的改进。 该装置包括：参数设置单元，用于设置确定测试信号的眼图的形状的多个参数的值; 存储单元，用于根据参数的值存储对数模转换器的输出值; 算术运算单元，用于根据来自参数设定单元的参数值和存储单元中的输出值计算出数字模拟转换器的输出值; 以及电压值设定单元，用于根据算术运算单元的计算结果，对数模转换器设定从数模转换器输出的电压值。

公开(公告)号：US07672033B2

公开(公告)日：2010-03-02

申请号：US11700813

申请日：2007-02-01

申请人： Toshiaki Kobayashi ,  Kenji Uchida ,  Akira Toyama ,  Katsuya Ikezawa ,  Akira Miura ,  Yasukazu Akasaka

发明人： Toshiaki Kobayashi ,  Kenji Uchida ,  Akira Toyama ,  Katsuya Ikezawa ,  Akira Miura ,  Yasukazu Akasaka

IPC分类号： G02B26/00

CPC分类号： G02F1/0327 ,  G02F1/0123 ,  H04B10/501

摘要： In a light modulating apparatus of an external modulating type which is used in an optical communication system, there are provided an LN modulator, a light branching circuit, a photoelectric converter, a bias control circuit, a driver for an LN modulator which serves to drive the LN modulator in response to an input electric signal, a capacitor for cutting off DC and low frequency components of the input electric signal, a low frequency component compensating circuit for compensating the DC and low frequency components of the input electric signal, and an adding circuit for adding an output of the bias control circuit and that of the low frequency component compensating circuit and generating a bias control signal of the LN modulator.

摘要翻译： 在光通信系统中使用的外调制光调制装置中，设置有LN调制器，光分支电路，光电转换器，偏置控制电路，用于驱动LN调制器的驱动器 LN调制器响应于输入电信号，用于切断DC的电容器和输入电信号的低频分量;用于补偿输入电信号的DC和低频分量的低频分量补偿电路，以及添加 用于添加偏置控制电路的输出和低频分量补偿电路的输出的电路，并产生LN调制器的偏置控制信号。

公开(公告)号：US20070177252A1

公开(公告)日：2007-08-02

申请号：US11700813

申请日：2007-02-01

申请人： Toshiaki Kobayashi ,  Kenji Uchida ,  Akira Toyama ,  Katsuya Ikezawa ,  Akira Miura ,  Yasukazu Akasaka

发明人： Toshiaki Kobayashi ,  Kenji Uchida ,  Akira Toyama ,  Katsuya Ikezawa ,  Akira Miura ,  Yasukazu Akasaka

IPC分类号： G02F1/00

CPC分类号： G02F1/0327 ,  G02F1/0123 ,  H04B10/501

摘要： In a light modulating apparatus of an external modulating type which is used in an optical communication system, there are provided an LN modulator, a light branching circuit, a photoelectric converter, a bias control circuit, a driver for an LN modulator which serves to drive the LN modulator in response to an input electric signal, a capacitor for cutting off DC and low frequency components of the input electric signal, a low frequency component compensating circuit for compensating the DC and low frequency components of the input electric signal, and an adding circuit for adding an output of the bias control circuit and that of the low frequency component compensating circuit and generating a bias control signal of the LN modulator.

摘要翻译： 在光通信系统中使用的外调制光调制装置中，设置有LN调制器，光分支电路，光电转换器，偏置控制电路，用于驱动LN调制器的驱动器 LN调制器响应于输入电信号，用于切断DC的电容器和输入电信号的低频分量;用于补偿输入电信号的DC和低频分量的低频分量补偿电路，以及添加 用于添加偏置控制电路的输出和低频分量补偿电路的输出的电路，并产生LN调制器的偏置控制信号。

公开(公告)号：US07580641B2

公开(公告)日：2009-08-25

申请号：US11401851

申请日：2006-04-12

申请人： Hiroshi Shimizu ,  Katsuya Ikezawa ,  Akira Toyama ,  Yasukazu Akasaka ,  Kanji Tatsumi ,  Chie Sato ,  Hirotoshi Kodaka ,  Tadashige Fujita ,  Tsuyoshi Yakihara ,  Daisuke Hayashi ,  Masayuki Suehiro ,  Shinji Iio ,  Morio Wada ,  Akira Miura

发明人： Hiroshi Shimizu ,  Katsuya Ikezawa ,  Akira Toyama ,  Yasukazu Akasaka ,  Kanji Tatsumi ,  Chie Sato ,  Hirotoshi Kodaka ,  Tadashige Fujita ,  Tsuyoshi Yakihara ,  Daisuke Hayashi ,  Masayuki Suehiro ,  Shinji Iio ,  Morio Wada ,  Akira Miura

IPC分类号： H04J14/08

CPC分类号： H04Q11/0005 ,  H04Q2011/0039

摘要： Disclosed is a repeater including: a recognizing unit to recognize a destination address of an optical packet from the optical packet which includes the destination address assigned in unit of bit and a bit indicating whether or not a plurality of destination addresses are assigned; an optical splitting unit to split the optical packet into a plurality of optical packets; and selecting units to select transmission channels for the split optical packets on the basis of recognition results by the recognizing units, respectively.

摘要翻译： 公开了一种中继器，包括：识别单元，用于从光分组中识别出光分组的目的地地址，该光分组包括以比特为单位分配的目的地地址和指示多个目的地地址是否被分配的比特; 光分路单元，用于将所述光分组分解成多个光分组; 以及分别基于识别单元的识别结果选择单元来选择用于分割光分组的传输信道。

公开(公告)号：US20070047956A1

公开(公告)日：2007-03-01

申请号：US11401851

申请日：2006-04-12

申请人： Hiroshi Shimizu ,  Katsuya Ikezawa ,  Akira Toyama ,  Yasukazu Akasaka ,  Kanji Tatsumi ,  Chie Sato ,  Hirotoshi Kodaka ,  Tadashige Fujita ,  Tsuyoshi Yakihara ,  Daisuke Hayashi ,  Masayuki Suehiro ,  Shinji Iio ,  Morio Wada ,  Akira Miura

发明人： Hiroshi Shimizu ,  Katsuya Ikezawa ,  Akira Toyama ,  Yasukazu Akasaka ,  Kanji Tatsumi ,  Chie Sato ,  Hirotoshi Kodaka ,  Tadashige Fujita ,  Tsuyoshi Yakihara ,  Daisuke Hayashi ,  Masayuki Suehiro ,  Shinji Iio ,  Morio Wada ,  Akira Miura

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q2011/0039

摘要： Disclosed is a repeater including: a recognizing unit to recognize a destination address of an optical packet from the optical packet which includes the destination address assigned in unit of bit and a bit indicating whether or not a plurality of destination addresses are assigned; an optical splitting unit to split the optical packet into a plurality of optical packets; and selecting units to select transmission channels for the split optical packets on the basis of recognition results by the recognizing units, respectively.

摘要翻译： 公开了一种中继器，包括：识别单元，用于从光分组中识别出光分组的目的地地址，该光分组包括以比特为单位分配的目的地地址和指示多个目的地地址是否被分配的比特; 光分路单元，用于将所述光分组分解成多个光分组; 以及分别基于识别单元的识别结果选择单元来选择用于分割光分组的传输信道。

公开(公告)号：US07965800B2

公开(公告)日：2011-06-21

申请号：US12037683

申请日：2008-02-26

申请人： Hiroshi Sugawara ,  Katsuya Ikezawa ,  Toshiaki Kobayashi ,  Yasukazu Akasaka ,  Akira Toyama ,  Toshimichi Suzuki ,  Hirotoshi Kodaka ,  Tsuyoshi Yakihara

发明人： Hiroshi Sugawara ,  Katsuya Ikezawa ,  Toshiaki Kobayashi ,  Yasukazu Akasaka ,  Akira Toyama ,  Toshimichi Suzuki ,  Hirotoshi Kodaka ,  Tsuyoshi Yakihara

IPC分类号： H04L7/00

CPC分类号： H04L7/0276

摘要： A clock recovery apparatus for generating a recovery clock from received data may include, but is not limited to, first and second oscillators. The first oscillator generates a first signal having a first frequency. The first signal synchronizes with the received data when the received data has a first level. The second oscillator is connected in series to the first oscillator. The second oscillator generates a second signal as the recovery clock when the first signal has a second level. The second signal has a second frequency. The second signal synchronizes with the first signal.

摘要翻译： 用于从接收数据产生恢复时钟的时钟恢复装置可以包括但不限于第一和第二振荡器。 第一振荡器产生具有第一频率的第一信号。 当接收到的数据具有第一级时，第一信号与接收到的数据同步。 第二振荡器与第一振荡器串联连接。 当第一信号具有第二电平时，第二振荡器产生作为恢复时钟的第二信号。 第二信号具有第二频率。 第二信号与第一信号同步。

公开(公告)号：US20100060502A1

公开(公告)日：2010-03-11

申请号：US12540525

申请日：2009-08-13

申请人： Akira Toyama ,  Yasukazu Akasaka ,  Chie Sato ,  Tsuyoshi Yakihara ,  Mamoru Sanagi ,  Akira Miura

发明人： Akira Toyama ,  Yasukazu Akasaka ,  Chie Sato ,  Tsuyoshi Yakihara ,  Mamoru Sanagi ,  Akira Miura

IPC分类号： H03M1/12

CPC分类号： H03M1/004 ,  H03M1/1215 ,  H03M1/365

摘要： There is provided an A/D converter capable of changing specification and function of the A/D converter with the use of a programmable circuit by combining comparators with the programmable circuit. The A/D converter comprises a parallel-connected comparison circuit including a plurality of comparators, an analog signal being inputted to one of input terminals of the respective comparators while respective predetermined reference voltages being inputted to the other of the input terminals of the respective comparators, and a digital processing circuit for receiving output signals from the parallel-connected comparison circuit, and executing predetermined digital processing as set on the basis of a program.

摘要翻译： 提供了一种A / D转换器，通过将比较器与可编程电路组合，可以通过使用可编程电路来改变A / D转换器的规格和功能。 A / D转换器包括并联连接的比较电路，其包括多个比较器，模拟信号被输入到各个比较器的一个输入端，而各个预定参考电压被输入到各个比较器的另一个输入端 以及数字处理电路，用于接收来自并联比较电路的输出信号，并执行基于程序设定的预定数字处理。