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41. 发明授权

US08184355B2 Light modulation device 有权
标题翻译：调光装置
公开(公告)号：US08184355B2
公开(公告)日：2012-05-22
申请号：US12230792
申请日：2008-09-04
申请人： Yukito Tsunoda , Satoshi Ide
发明人： Yukito Tsunoda , Satoshi Ide
IPC分类号： G02F1/00 , G02F1/01 , G02B26/00
CPC分类号： G02F1/0123 , G02F1/225 , H04B10/505 , H04B10/5561
摘要： A light modulation device capable of stabilizing a phase set in phase modulation processing and improving optical communication quality. A phase modulator is provided for each of plural branched input lights and performs phase modulation of the input light. A phase shifter is provided at the upstream or downstream of the phase modulator and shifts a phase of the input light or of the phase-modulated light. A light interference section causes the output lights from the light modulator to interfere with each other to generate a multilevel phase modulated signal and interference light having a phase state different from that of the modulated signal. A monitor receives the interference light and outputs an electric signal according to the intensity. A phase shift controller generates a phase control signal based on the electric signal and applies the signal to the shifter to control the phase shift amount to be set by the shifter.
摘要翻译：一种能够稳定相位调制处理中的相位并提高光通信质量的光调制装置。为多个分支输入光中的每一个提供相位调制器，并执行输入光的相位调制。在相位调制器的上游或下游设置移相器，并移相输入光或相位调制光的相位。光干涉部分使得光调制器的输出光彼此干涉以产生具有与调制信号不同的相位状态的多电平相位调制信号和干涉光。监视器接收干扰光，并根据强度输出电信号。相移控制器基于电信号产生相位控制信号，并将该信号施加到移位器，以控制由移位器设定的相移量。

42. 发明授权

US08164385B2 Amplifier circuit 有权
标题翻译：放大器电路
公开(公告)号：US08164385B2
公开(公告)日：2012-04-24
申请号：US12547625
申请日：2009-08-26
申请人： Yukito Tsunoda , Mariko Sugawara
发明人： Yukito Tsunoda , Mariko Sugawara
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/45085 , H03F2203/45652
摘要： An amplifier circuit includes a first amplifier amplifying an input signal and outputting a first amplified signal, a second amplifier amplifying the first amplified signal and outputting a second amplified signal, and a feedback circuitry feeding back the second amplified signal to the input of the second amplifier. The feedback circuitry includes a feedback transistor that keeps the input level of the second amplifier constant.
摘要翻译：放大器电路包括放大输入信号并输出第一放大信号的第一放大器，放大第一放大信号并输出第二放大信号的第二放大器和将第二放大信号反馈到第二放大器的输入端的反馈电路。反馈电路包括保持第二放大器的输入电平恒定的反馈晶体管。

43. 发明申请

US20120062143A1 DRIVING CIRCUIT 有权
标题翻译：驱动电路
公开(公告)号：US20120062143A1
公开(公告)日：2012-03-15
申请号：US13214672
申请日：2011-08-22
申请人： Mariko SUGAWARA , Yukito Tsunoda , Satoshi Ide
发明人： Mariko SUGAWARA , Yukito Tsunoda , Satoshi Ide
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , Y02B20/347
摘要： A driving circuit for driving a diode includes at least one differential pair including a first output node and a second output node and configured to switch an output current, a current source configured to adjust the output current, a dummy load coupled to the second output node, a first termination resistor coupled between the first output node and a termination ground, and a second termination resistor coupled between the second output node and the termination ground. The output current is supplied to the diode through the first output node by at least one differential pair.
摘要翻译：用于驱动二极管的驱动电路包括至少一个包括第一输出节点和第二输出节点的差分对，并且被配置为切换输出电流，被配置为调整输出电流的电流源，耦合到第二输出节点的虚拟负载耦合在所述第一输出节点和终端接地之间的第一终端电阻器以及耦合在所述第二输出节点和所述终端接地之间的第二终端电阻器。输出电流通过第一输出节点由至少一个差分对提供给二极管。

44. 发明授权

US07893760B2 Amplifier circuit 有权
标题翻译：放大器电路
公开(公告)号：US07893760B2
公开(公告)日：2011-02-22
申请号：US12547629
申请日：2009-08-26
申请人： Mariko Sugawara , Yukito Tsunoda
发明人： Mariko Sugawara , Yukito Tsunoda
IPC分类号： H03F3/68
CPC分类号： H03F1/34 , H03F3/343 , H03F3/45085 , H03F2203/45511 , H03F2203/45652
摘要： An amplifier circuit including: a multistage amplifier unit including an input-stage transistor and an output-stage transistor and configured to amplify an input signal and to output an amplified signal; and a feedback unit including a first feedback transistor, a second feedback transistor, and a feedback resistor, and configured to feed back the amplified signal to an input of the output-stage transistor in the multistage amplifier unit via the first feedback transistor, the second feedback transistor, and the feedback resistor.
摘要翻译：一种放大器电路，包括：多级放大器单元，包括输入级晶体管和输出级晶体管，用于放大输入信号并输出放大信号; 以及反馈单元，包括第一反馈晶体管，第二反馈晶体管和反馈电阻器，并且被配置为经由第一反馈晶体管将放大的信号反馈到多级放大器单元中的输出级晶体管的输入端，第二反馈晶体管反馈晶体管和反馈电阻。

45. 发明申请

US20090086303A1 MULTILEVEL OPTICAL PHASE MODULATOR 有权
标题翻译：多光学相位调制器
公开(公告)号：US20090086303A1
公开(公告)日：2009-04-02
申请号：US12189248
申请日：2008-08-11
申请人： Satoshi Ide , Yukito Tsunoda
发明人： Satoshi Ide , Yukito Tsunoda
IPC分类号： G02F1/01
CPC分类号： H04B10/5053 , H04B10/5561
摘要： To take out monitor light unaffected by a multilevel optical phase-modulated component. For the purpose, a phase-shift unit that controls phases of plural (n, n is an integral number equal to or greater than 2) input lights, plural (n, n is an integral number equal to or greater than 2) phase modulating units that respectively phase-modulate the input lights from the phase-shift units, a first coupling unit that couples and outputs the phase-modulated lights from the plural phase modulating units as multilevel optical phase-modulated signal light, and a second coupling unit that couples and outputs non-phase-modulated lights from the plural phase modulating units as coupled light are provided.
摘要翻译：取出不受多级光学相位调制元件影响的监视光。为此，控制多个（n，n为2以上的整数）的相位的相移单元输入光，多个（n，n为2以上的整数）相位调制分别对来自相移单元的输入光进行相位调制的单元，耦合并输出来自多相调制单元的相位调制光作为多电平光相位调制信号光的第一耦合单元，以及第二耦合单元，提供从多个相位调制单元耦合并输出作为耦合光的非相位调制光。

46. 发明申请

US20090022502A1 Receiving apparatus 有权
标题翻译：接收装置
公开(公告)号：US20090022502A1
公开(公告)日：2009-01-22
申请号：US11984425
申请日：2007-11-16
申请人： Yukito Tsunoda
发明人： Yukito Tsunoda
IPC分类号： H04B10/06 , H04L25/06
CPC分类号： H04B10/695 , H04L27/08
摘要： A receiving apparatus which suppresses threshold-voltage changes. A peak voltage detection block detects the peak voltage of a signal. A bottom voltage detection block detects the bottom voltage of the signal. A stop control block generates a stop signal for stopping the operations to detect the peak voltage and the bottom voltage. A threshold value specification block specifies a threshold voltage derived from the peak voltage and the bottom voltage. When receiving the stop signal, the peak voltage detection block stops the operation to detect the peak voltage and retains the peak voltage detected before the reception of the stop signal while the same signal is being received. When receiving the stop signal, the bottom voltage detection block stops the operation to detect the bottom voltage and retains the bottom voltage detected before the reception of the stop signal while the same signal is being received.
摘要翻译：一种抑制阈值电压变化的接收装置。峰值电压检测块检测信号的峰值电压。底部电压检测块检测信号的底部电压。停止控制块产生用于停止操作以检测峰值电压和底部电压的停止信号。阈值指定块指定从峰值电压和底部电压导出的阈值电压。当接收到停止信号时，峰值电压检测块停止检测峰值电压的操作，并且在接收到相同的信号的同时保持接收停止信号之前检测到的峰值电压。当接收到停止信号时，底部电压检测块停止检测底部电压的操作，并且在接收到相同的信号的同时保持接收停止信号之前检测到的底部电压。

47. 发明授权

US07430344B2 Acousto-optic device and fabrication method of acousto-optic device 失效
标题翻译：声光装置的声光装置及其制造方法
公开(公告)号：US07430344B2
公开(公告)日：2008-09-30
申请号：US11723936
申请日：2007-03-22
申请人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa , Yumi Nakazawa
发明人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa , Yumi Nakazawa
IPC分类号： G02F1/295
CPC分类号： G02F1/125 , G02F1/116 , H03H9/02968 , H04J14/021
摘要： An acousto-optic device is disclosed which can achieve both of suppression of secular change and prevention of device damage and can maintain a stabilized wavelength selection filtering operation. The acousto-optic device includes a substrate on which a SAW guide for guiding a surface acoustic wave and an optical waveguide for guiding an optical wave are provided. A pyro-electricity coping conductive wiring pattern is provided in a region of the substrate other than the SAW guide and neutralizes polarization charge generated on a surface of the substrate.
摘要翻译：公开了一种可以实现抑制长期变化和防止设备损坏的声光器件，并且可以保持稳定的波长选择滤波操作。声光装置包括：基板，用于引导表面声波的SAW引导件和用于引导光波的光波导的基板。在除了SAW引导件之外的基板的区域中设置热电承载导电布线图案，并且中和在基板的表面上产生的极化电荷。

48. 发明授权

US07302121B2 Optical device and drive voltage supply device 失效
标题翻译：光器件和驱动电源
公开(公告)号：US07302121B2
公开(公告)日：2007-11-27
申请号：US11085210
申请日：2005-03-22
申请人： Yumi Nakazawa, legal representative , Hiroshi Miyata , Yukito Tsunoda
发明人： Tadao Nakazawa, deceased
IPC分类号： G02F1/335 , G02F1/295 , G02F1/01 , G02B6/00
CPC分类号： G02F1/0353 , G02F2201/124
摘要： The present invention is directed toward an optical device and a drive voltage supply device, which prevent occurrence of a DC drift and enable stable selection of light of desired wavelength without deteriorating a filtering characteristic. The optical device comprises a substrate having an electrooptical effect; an optical waveguide formed in this substrate; a plurality of comb electrode pairs which are arranged side by side along the optical waveguide, can apply an electric field for said electrooptical effect, and are formed from respective pairs of comb electrodes; and drive voltage supply means capable of supplying a drive voltage to said comb electrode pairs such that the voltage changes with time.
摘要翻译：本发明涉及一种光学装置和驱动电压供应装置，其防止DC漂移的发生，并且能够稳定地选择所需波长的光，而不会降低滤波特性。光学装置包括具有电光效应的基板; 在该衬底中形成的光波导; 沿着光波导并排布置的多个梳状电极对可以对所述电光效应用电场，并由各对梳状电极形成; 以及驱动电压供给装置，其能够向所述梳状电极对提供驱动电压，使得电压随时间而变化。

49. 发明申请

US20070070490A1 Optical communication device provided with a reflector and method for forming a reflector in an optical communication device 审中-公开
标题翻译：具有反射器的光通信设备和在光通信设备中形成反射器的方法
公开(公告)号：US20070070490A1
公开(公告)日：2007-03-29
申请号：US11312769
申请日：2005-12-21
申请人： Yukito Tsunoda , Hiroshi Miyata
发明人： Yukito Tsunoda , Hiroshi Miyata
IPC分类号： G02F1/33 , G02F1/01 , G02B26/08 , G02F1/295
CPC分类号： G02B5/08 , G02B2006/12119 , G02F1/116 , G02F1/125 , G02F2201/16 , G02F2201/34 , G02F2203/023
摘要： An optical communication device of the invention includes a reflector for reflecting the light that has reached one end surface of a waveguide chip to turn the optical path of the light. The reflector includes a transparent thin film layer formed on one end surface of the waveguide chip by using a material to which a metal that forms an intermetallic compound or the like with Au is added to a substance that is transparent to the light that propagates through the waveguide, as well as an Au thin film layer formed on the front surface of the transparent thin film layer. This allows formation of a reflector having an Au thin film layer as a reflecting surface in an optical medium with high adhesion strength. Thus, an optical communication device can be provided having a high reliability with little loss.
摘要翻译：本发明的光通信装置包括用于反射已经到达波导芯片的一个端面的光的反射器，以转动光的光路。反射器包括透明薄膜层，该透明薄膜层通过使用将金属与Au形成金属间化合物等的材料添加到透过透明的光的物质上而形成在波导芯片的一个端面上波导，以及形成在透明薄膜层的前表面上的Au薄膜层。这允许在具有高粘合强度的光学介质中形成具有Au薄膜层作为反射表面的反射器。因此，可以提供具有高可靠性且损耗小的光通信装置。

50. 发明申请

US20050286826A1 Acousto-optic device 有权
标题翻译：声光装置
公开(公告)号：US20050286826A1
公开(公告)日：2005-12-29
申请号：US10954305
申请日：2004-10-01
申请人： Yukito Tsunoda , Hiroshi Miyata
发明人： Yukito Tsunoda , Hiroshi Miyata
IPC分类号： G02F1/11 , G02F1/125 , G02F1/21 , G02F1/335
CPC分类号： G02F1/116 , G02F1/125 , G02F2001/212
摘要： The present invention relates to an acousto-optic device capable of improving the interaction efficiency for suppressing the driving power needed for SAW generation. The acousto-optic device according to the present invention a substrate showing an acousto-optic effect, first and second optical waveguides formed on the substrate to be substantially parallel with each other for propagating light, a transducer formed on the substrate for producing a surface acoustic wave to be propagated in a propagation direction along directions of the first and second optical waveguides, and a surface acoustic wave distribution structure for distributing an intensity of the surface acoustic wave from the transducer in a direction perpendicular to the propagation direction on the substrate so that maximum values develop at two points corresponding to positions of the first and second optical waveguides.
摘要翻译：本发明涉及能够提高用于抑制SAW产生所需的驱动功率的相互作用效率的声光装置。根据本发明的声光装置，具有声光效应的基板，形成在基板上的基本上彼此平行以传播光的第一和第二光波导;形成在基板上的用于产生表面声学的换能器波沿着第一和第二光波导的方向沿传播方向传播，以及声表面波分布结构，用于在与基板上的传播方向垂直的方向上分配来自换能器的表面声波的强度，使得在与第一和第二光波导的位置对应的两个点处产生最大值。

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