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1. 发明授权

US07801450B2 Optical transmitter and optical communication system 失效
标题翻译：光发射机和光通信系统
公开(公告)号：US07801450B2
公开(公告)日：2010-09-21
申请号：US11663743
申请日：2004-11-08
申请人： Jun′ichi Abe , Katsuhiro Shimizu
发明人： Jun′ichi Abe , Katsuhiro Shimizu
IPC分类号： H04B10/04
CPC分类号： H04B10/50575 , G02F1/0123 , H04B10/07957 , H04B10/505 , H04B10/5057 , H04B10/50572 , H04B10/50593 , H04B10/50595 , H04B10/572
摘要： An optical transmitter includes an optical modulator, an optical coupler, a crosspoint monitoring unit, a reference-value setting unit, and a bias circuit. The optical coupler splits an optical signal output from the optical modulator into a plurality of optical signals. The crosspoint monitoring unit receives part of the optical signals, and monitors a crosspoint of the optical signal output from the optical modulator. The reference-value setting unit sets a bias reference value to be assigned to the optical modulator based on an output of the crosspoint monitoring unit so that the crosspoint is constant. The bias circuit applies a bias to the optical modulator based on the bias reference value.
摘要翻译：光发射机包括光调制器，光耦合器，交叉点监测单元，基准值设定单元和偏置电路。光耦合器将从光调制器输出的光信号分离成多个光信号。交叉点监视单元接收部分光信号，并监视从光调制器输出的光信号的交叉点。基准值设定单元基于交叉点监视单元的输出设定分配给光调制器的偏置基准值，使得交叉点恒定。偏置电路基于偏置参考值向光学调制器施加偏置。

2. 发明申请

US20080107428A1 Optical Transmitter and Optical Communication System 失效
标题翻译：光发射机和光通信系统
公开(公告)号：US20080107428A1
公开(公告)日：2008-05-08
申请号：US11663743
申请日：2004-11-08
申请人： Jun'ichi Abe , Katsuhiro Shimizu
发明人： Jun'ichi Abe , Katsuhiro Shimizu
IPC分类号： H04B10/04
CPC分类号： H04B10/50575 , G02F1/0123 , H04B10/07957 , H04B10/505 , H04B10/5057 , H04B10/50572 , H04B10/50593 , H04B10/50595 , H04B10/572
摘要： An optical transmitter includes an optical modulator, an optical coupler, a crosspoint monitoring unit, a reference-value setting unit, and a bias circuit. The optical coupler splits an optical signal output from the optical modulator into a plurality of optical signals. The crosspoint monitoring unit receives part of the optical signals, and monitors a crosspoint of the optical signal output from the optical modulator. The reference-value setting unit sets a bias reference value to be assigned to the optical modulator based on an output of the crosspoint monitoring unit so that the crosspoint is constant. The bias circuit applies a bias to the optical modulator based on the bias reference value.
摘要翻译：光发射机包括光调制器，光耦合器，交叉点监测单元，基准值设定单元和偏置电路。光耦合器将从光调制器输出的光信号分离成多个光信号。交叉点监视单元接收部分光信号，并监视从光调制器输出的光信号的交叉点。基准值设定单元基于交叉点监视单元的输出设定分配给光调制器的偏置基准值，使得交叉点恒定。偏置电路基于偏置参考值向光学调制器施加偏置。

3. 发明申请

US20080092009A1 Error Correction Coding Apparatus and Error Correction Decoding Apparatus 有权
标题翻译：纠错编码装置和纠错解码装置
公开(公告)号：US20080092009A1
公开(公告)日：2008-04-17
申请号：US11662085
申请日：2004-09-09
申请人： Yoshikuni Miyata , Hideo Yoshida , Kazuhide Ouchi , Katsuhiro Shimizu , Tatsuya Kobayashi
发明人： Yoshikuni Miyata , Hideo Yoshida , Kazuhide Ouchi , Katsuhiro Shimizu , Tatsuya Kobayashi
IPC分类号： H03M13/27 , G06F11/16
CPC分类号： H03M13/2909 , H03M13/1515 , H03M13/152 , H03M13/27
摘要： An error correction coding apparatus includes a frame generating unit for buffering inputted information sequence data in frame buffers which correspond to units to be coded, respectively, a first interleaving unit for rearranging the information sequence data within two or more of the frame buffers, a first coding unit for coding the information sequence data rearranged by the first interleaving unit for each of the frame buffers, and for buffering an error correcting code generated thereby in the frame buffer, a first deinterleaving unit for rearranging code word sequence data in the frame buffer which is coded by the first coding unit according to a procedure which is reverse to that which the first interleaving unit uses, and a multiplexing unit for outputting, as transmission information, the code word sequence data rearranged by the first deinterleaving unit.
摘要翻译：纠错编码装置包括：帧产生单元，用于分别缓冲对应于要编码的单元的帧缓冲器中的输入信息序列数据;第一交织单元，用于在两个或更多个帧缓冲器内重新排列信息序列数据;第一编码单元，用于编码由第一交织单元为每个帧缓冲器重排的信息序列数据，并且用于缓冲在帧缓冲器中由此产生的纠错码;第一解交织单元，用于重新排列帧缓冲器中的码字序列数据，根据与第一交织单元使用的过程相反的过程由第一编码单元编码;以及复用单元，用于输出由第一解交织单元重新排列的码字序列数据作为发送信息。

4. 发明申请

US20070229118A1 Phase Comparator 审中-公开
标题翻译：相位比较器
公开(公告)号：US20070229118A1
公开(公告)日：2007-10-04
申请号：US11504694
申请日：2006-08-16
申请人： Tatsuya Kobayashi , Hitoyuki Tagami , Katsuhiro Shimizu , Kenkichi Shimomura
发明人： Tatsuya Kobayashi , Hitoyuki Tagami , Katsuhiro Shimizu , Kenkichi Shimomura
IPC分类号： H03D13/00
CPC分类号： H03D13/003
摘要： A phase comparator includes: first and second detecting units for detecting an amplitude value of a clock signal at falling timing or rising timing of a data signal; an edge comparing unit for identifying as to whether the first detecting unit detects an amplitude value under a rising state or a falling state to output a first identification result, and for identifying as to whether the second detecting unit detects an amplitude value under a rising state or a falling state to output a second identification result; first and second polarity inverting units for inverting a polarity of output of the first and second detecting units; and a signal selecting unit for selecting one of output values of the first and second polarity inverting units in response to a polarity of the data signal to output the selected output value.
摘要翻译：相位比较器包括：第一和第二检测单元，用于检测下降定时时钟信号的振幅值或数据信号的上升定时; 边缘比较单元，用于识别第一检测单元是否在升高状态或下降状态下检测振幅值以输出第一识别结果，并且用于识别第二检测单元是否在升高状态下检测振幅值或下降状态输出第二识别结果; 第一和第二极性反转单元，用于反转第一和第二检测单元的输出的极性; 以及信号选择单元，用于响应于数据信号的极性来选择第一和第二极性反转单元的输出值之一，以输出所选择的输出值。

5. 发明授权

US06657778B1 Optical amplification repeater and optical amplification repeating and transmitting system 失效
标题翻译：光放大中继器和光放大重复传输系统
公开(公告)号：US06657778B1
公开(公告)日：2003-12-02
申请号：US09806456
申请日：2001-04-18
申请人： Kuniaki Motoshima , Katsuhiro Shimizu , Junichi Nakagawa , Naoki Suzuki
发明人： Kuniaki Motoshima , Katsuhiro Shimizu , Junichi Nakagawa , Naoki Suzuki
IPC分类号： H04B1012
CPC分类号： H04B10/2941 , H04B10/296 , H04B2210/258 , H04J14/0221
摘要： Light signals of first to n-th bands amplified en bloc undergo proper attenuation through an adjustable optical attenuator in conformance with attenuation in an optical fiber connected to input of an optical amplifying repeater apparatus, whereon the light signals are demultiplexed or separated into individual bands and amplified by first to n-th fixed-gain optical amplifiers (#1, . . . , #n) each having a high fixed gain in the respective bands to be subsequently multiplexed by an optical multiplexer and then sent out onto a transmission line. A monitoring light branching device extracts a part of light power of a specific monitoring wavelength, which is then fed to an adjustable attenuator control circuit which controls the attenuation factor of the adjustable optical attenuator so that the light power of the specific wavelength remains constant. The gain of the optical amplifying repeater apparatus at the specific wavelength can thus be determined. By employing as the optical amplifying medium a substantially homogeneous medium, the gain for the other wavelengths can be fixed. The optical amplifying repeater apparatus whose gain is essentially independent of the change in the number of the wavelengths can thus be realized.
摘要翻译：第一至第n个频带放大的光信号通过可调节的光衰减器经过适当的衰减，其符合连接到光放大中继器设备的输入的光纤中的衰减，其中光信号被解复用或分离成单个频带，由第一至第n固定增益光放大器（＃1，...，#n）放大，每个固定增益光放大器（＃1，...，#n）在各个频带中具有高固定增益，随后由光复用器复用，然后发送到传输线。监视光分支装置提取特定监视波长的一部分光功率，然后将其馈送到可调节衰减器控制电路，该可调节衰减器控制电路控制可调节光衰减器的衰减因子，使得特定波长的光功率保持恒定。因此可以确定特定波长的光放大中继器装置的增益。通过采用基本均匀的介质作为光放大介质，可以固定其它波长的增益。因此可以实现其增益基本上与波长数量的变化无关的光放大中继器装置。

6. 发明申请

US20120217823A1 DISPLAY DEVICE AND POWER-SUPPLY NECESSITY DETERMINATION METHOD OF BRANCH DEVICE CONNECTED TO DISPLAY DEVICE 审中-公开
标题翻译：显示设备和连接到显示设备的分支设备的电源供应确定方法
公开(公告)号：US20120217823A1
公开(公告)日：2012-08-30
申请号：US13399699
申请日：2012-02-17
申请人： Katsuhiro Shimizu
发明人： Katsuhiro Shimizu
IPC分类号： H01H47/00 , H03K5/153
CPC分类号： G09G5/006 , G09G2330/021 , G09G2370/10 , G09G2370/22 , Y10T307/858
摘要： A branch device has a connector for connecting to a display device as a sink device. A pull-up resistor is connected between an internal power source in the branch device and a first terminal in the connector when power supply from the display device is not necessary for the branch device, and a short resistor is connected between the first terminal and a second terminal in the connector when power from the display device is necessary. An evaluation circuit determines whether or not the power has to be supplied from the display device to the branch device by evaluating a voltage appearing at the first terminal when the signal for determination is applied to the second terminal by comparing that voltage to two different reference voltages which are within a range higher than a GND voltage and lower than the voltage of a second internal power source of the device itself.
摘要翻译：分支装置具有用于连接到作为宿装置的显示装置的连接器。当分支装置不需要来自显示装置的电源时，分支装置中的内部电源和连接器中的第一端子之间连接有上拉电阻器，并且短路电阻器连接在第一端子与第一端子之间当需要来自显示装置的电力时，连接器中的第二端子。评估电路通过将用于确定的信号应用于第二端子的电压与两个不同的参考电压进行比较来确定是否必须通过评估出现在第一端子处的电压来从显示装置向分支装置提供电力它们在比GND电压高的范围内并且低于器件本身的第二内部电源的电压。

7. 发明授权

US07768698B2 Raman amplifier and optical communication system 失效
标题翻译：拉曼放大器和光通信系统
公开(公告)号：US07768698B2
公开(公告)日：2010-08-03
申请号：US11661502
申请日：2004-08-30
申请人： Toshiyuki Tokura , Katsuhiro Shimizu , Tasuku Fujieda , Ken'ichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
发明人： Toshiyuki Tokura , Katsuhiro Shimizu , Tasuku Fujieda , Ken'ichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
IPC分类号： H04B10/17
CPC分类号： H01S3/302 , H01S3/06725 , H01S3/06758 , H01S3/094076 , H01S3/0941 , H01S3/10007 , H04B10/2916
摘要： A Raman amplifier includes a pumping light source, an optical coupler, and a Raman amplifier medium. The pumping light source outputs a pumping light that is intensity-modulated with a frequency equal to or higher than 100 megahertz. The optical coupler couples the pumping light with a carrier light. The Raman amplification medium is pumped by the pumping light to amplify the carrier light. The Raman amplification medium has characteristics of a low dispersion and a small difference between propagation times of the carrier light and the pumping light.
摘要翻译：拉曼放大器包括泵浦光源，光耦合器和拉曼放大器介质。泵浦光源输出以等于或高于100兆赫的频率进行强度调制的泵浦光。光耦合器将泵浦光与载体光耦合。通过泵浦光泵浦拉曼放大介质以放大载体光。拉曼放大介质具有载流子和泵浦光的传播时间之间的低色散和小差异的特征。

8. 发明申请

US20090135304A1 DISPLAY DEVICE, IMAGE SIGNAL PROCESSING METHOD, AND PROGRAM 有权
标题翻译：显示设备，图像信号处理方法和程序
公开(公告)号：US20090135304A1
公开(公告)日：2009-05-28
申请号：US12270931
申请日：2008-11-14
申请人： Yasuo INOUE , Toshihide HAYASHI , Masayuki TSUMURA , Koki TSUMORI , Katsuhiro SHIMIZU , Ban KAWAMURA , Ryuichi OKUMURA
发明人： Yasuo INOUE , Toshihide HAYASHI , Masayuki TSUMURA , Koki TSUMORI , Katsuhiro SHIMIZU , Ban KAWAMURA , Ryuichi OKUMURA
IPC分类号： G09G5/00
CPC分类号： G09G5/006 , G09G3/3208 , G09G2320/0247 , G09G2320/0261 , G09G2320/0613 , G09G2320/0626 , G09G2320/0666 , G09G2360/16 , G09G2370/04
摘要： There is provided a display device equipped with a display unit, the display device including a receiving part for receiving a difference signal of a plurality of channels including an image signal and content identification information inserted in a blanking period and outputting the image signal and the content identification information; a light emission amount regulation part for setting a reference duty according to image information of the image signal; an adjustment part for adjusting so that an actual duty is within a predetermined range based on the reference duty and an adjustment signal and adjusting a gain of the image signal so that a light emission amount defined by the actual duty and the gain of the image signal becomes the same as the light emission amount defined by the reference duty; and an adjustment signal generation part for generating the adjustment signal based on the content identification information.
摘要翻译：提供了一种配备有显示单元的显示装置，该显示装置包括：接收部，用于接收多个通道的差分信号，包括图像信号和插入消隐期间的内容识别信息，并输出图像信号和内容识别信息; 发光量调节部分，用于根据图像信号的图像信息设置基准占空比; 调节部件，用于基于参考占空比和调整信号调整实际占空比在预定范围内，并调整图像信号的增益，使得由实际占空比定义的发光量和图像信号的增益变得与由基准占空比限定的发光量相同; 以及调整信号生成部，用于基于内容识别信息生成调整信号。

9. 发明申请

US20080175602A1 Optical Reception Device 有权
标题翻译：光接收装置
公开(公告)号：US20080175602A1
公开(公告)日：2008-07-24
申请号：US11792306
申请日：2004-12-28
申请人： Shunsuke Mitani , Kazuyuki Ishida , Katsuhiro Shimizu
发明人： Shunsuke Mitani , Kazuyuki Ishida , Katsuhiro Shimizu
IPC分类号： H04B10/06
CPC分类号： H04B10/66
摘要： An optical reception device realizes stabilization of reception sensitivity inexpensively and highly precisely. The optical reception device includes: a Mach-Zehnder type 1-bit delay unit including a one-terminal input port and two-terminal output ports for decoding an optical difference phase shift keying (DPSK) signal and provided with one or more phase control functions to control the phase state of light; photoelectric conversion means for branching a portion of an optical output signal output from the one-side output port of the Mach-Zehnder type 1-bit delay unit, to convert the branched portion into an electric signal; and a phase control unit for controlling the phase state of the Mach-Zehnder type 1-bit delay device by using as an error signal the output signal of the photoelectric conversion means.
摘要翻译：光接收装置实现了廉价高精度的接收灵敏度的稳定化。光接收装置包括：马赫 - 策德尔型1位延迟单元，其包括单端输入端口和用于解码光差分相移键控（DPSK）信号并具有一个或多个相位控制功能的两端输出端口控制光的相位状态; 光电转换装置，用于对从Mach-Zehnder型1位延迟单元的单面输出端口输出的光输出信号的一部分进行分支，将分支部分转换为电信号; 以及相位控制单元，用于通过使用光电转换装置的输出信号作为误差信号来控制马赫 - 曾德尔型1位延迟装置的相位状态。

10. 发明申请

US20080013161A1 Raman Amplifier And Optical Communication System 失效
标题翻译：拉曼放大器和光通信系统
公开(公告)号：US20080013161A1
公开(公告)日：2008-01-17
申请号：US11661502
申请日：2004-08-30
申请人： Toshiyuki Tokura , Katsuhiro Shimizu , Tasuku Fujieda , Ken'ichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
发明人： Toshiyuki Tokura , Katsuhiro Shimizu , Tasuku Fujieda , Ken'ichi Asakawa , Hitoshi Mikada , Katsuyoshi Kawaguchi
IPC分类号： H01S3/00
CPC分类号： H01S3/302 , H01S3/06725 , H01S3/06758 , H01S3/094076 , H01S3/0941 , H01S3/10007 , H04B10/2916
摘要： A Raman amplifier includes a pumping light source, an optical coupler, and a Raman amplifier medium. The pumping light source outputs a pumping light that is intensity-modulated with a frequency equal to or higher than 100 megahertz. The optical coupler couples the pumping light with a carrier light. The Raman amplification medium is pumped by the pumping light to amplify the carrier light. The Raman amplification medium has characteristics of a low dispersion and a small difference between propagation times of the carrier light and the pumping light.
摘要翻译：拉曼放大器包括泵浦光源，光耦合器和拉曼放大器介质。泵浦光源输出以等于或高于100兆赫的频率进行强度调制的泵浦光。光耦合器将泵浦光与载体光耦合。通过泵浦光泵浦拉曼放大介质以放大载体光。拉曼放大介质具有载流子和泵浦光的传播时间之间的低色散和小差异的特征。

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