专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

US20100158541A1 Optical communication apparatus and optical communication method 失效
标题翻译：光通信装置及光通信方法
公开(公告)号：US20100158541A1
公开(公告)日：2010-06-24
申请号：US12659083
申请日：2010-02-24
申请人： Yukito Tsunoda , Satoshi Ide , Kazuyuki Mori
发明人： Yukito Tsunoda , Satoshi Ide , Kazuyuki Mori
IPC分类号： H04B10/06
CPC分类号： H04B10/25133 , H04B10/6971
摘要： An optical communication apparatus includes a receiver configured to receive an optical signal transmitted from an optical transmitting apparatus; a detector configured to detect a predetermined pattern signal included in the optical signal; a calculator configured to calculate, based on a waveform of the predetermined pattern signal, an amount of dispersion of the predetermined pattern signal; and a compensator configured to compensate for dispersion according to the amount of dispersion.
摘要翻译：光通信装置包括：接收器，被配置为接收从光发送装置发送的光信号; 检测器，被配置为检测包括在所述光信号中的预定图案信号; 计算器，被配置为基于预定图案信号的波形计算预定图案信号的色散量; 以及补偿器，被配置为根据色散量补偿色散。

32. 发明申请

US20100052790A1 AMPLIFIER CIRCUIT 有权
标题翻译：放大器电路
公开(公告)号：US20100052790A1
公开(公告)日：2010-03-04
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： H03F3/04
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。

33. 发明申请

US20070189655A1 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：US20070189655A1
公开(公告)日：2007-08-16
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： G02F1/335
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。

34. 发明申请

US20070139754A1 Optical transmission device and optical phase modulator 有权
标题翻译：光传输装置和光相位调制器
公开(公告)号：US20070139754A1
公开(公告)日：2007-06-21
申请号：US11386933
申请日：2006-03-23
申请人： Yukito Tsunoda
发明人： Yukito Tsunoda
IPC分类号： G02B26/00
CPC分类号： H04B10/505 , G02F2201/16 , H04B10/5051 , H04B10/5055 , H04B10/5161 , H04B10/541 , H04B10/5561
摘要： An optical transmission device includes an optical phase modulator and a signal generation function. The optical phase modulator is controlled, so that when the state of an intensity-modulated optical signal shifts from a first luminescent state, through a non-luminescent state, to a second luminescent state, the phase of the optical signal in the first luminescent state and the phase of the optical signal in the second luminescent state are inverted with respect to each other, or so that when the state of the intensity-modulated optical signal shifts from the first luminescent state, through two or more non-luminescent states, to a third luminescent state, the phase of the optical signal in the first luminescent state and the phase of the optical signal in the third luminescent state are inverted with respect to each other.
摘要翻译：光传输装置包括光相位调制器和信号发生功能。控制光相位调制器，使得当强度调制的光信号的状态从第一发光状态（非发光状态）移动到第二发光状态时，第一发光状态下的光信号的相位并且第二发光状态下的光信号的相位相互相反，或者当强度调制光信号的状态从第一发光状态通过两个或多个非发光状态移位到第三发光状态，第一发光状态下的光信号的相位和第三发光状态下的光信号的相位相互反转。

35. 发明授权

US07218797B2 Acousto-optic device and fabrication method of acousto-optic device 有权
公开(公告)号：US07218797B2
公开(公告)日：2007-05-15
申请号：US10945923
申请日：2004-09-22
申请人： Hiroshi Miyata , Yukito Tsunoda , Tadao Nakazawa
发明人： Hiroshi Miyata , Yukito Tsunoda , Tadao 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.

36. 发明申请

US20060126988A1 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：US20060126988A1
公开(公告)日：2006-06-15
申请号：US11085210
申请日：2005-03-22
申请人： Tadao Nakazawa , Yumi Nakazawa , Hiroshi Miyata , Yukito Tsunoda
发明人： Tadao Nakazawa , Yumi Nakazawa , Hiroshi Miyata , Yukito Tsunoda
IPC分类号： G02F1/035
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 d.c. 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，其防止发生直流。漂移并使得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。

37. 发明授权

US09161403B2 Driving circuit having a dummy load connected to one output node of a differential pair 有权
标题翻译：具有连接到差分对的一个输出节点的虚拟负载的驱动电路
公开(公告)号：US09161403B2
公开(公告)日：2015-10-13
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： H01S3/13 , H05B33/08
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。

38. 发明授权

US08791652B2 Signal shaping circuit 有权
标题翻译：信号整形电路
公开(公告)号：US08791652B2
公开(公告)日：2014-07-29
申请号：US13330299
申请日：2011-12-19
申请人： Hideki Oku , Yukito Tsunoda
发明人： Hideki Oku , Yukito Tsunoda
IPC分类号： H03L5/00 , H05B37/02
CPC分类号： H04B10/504 , H01S5/0428 , H01S5/06216 , H01S5/183
摘要： A signal shaping circuit that shapes a drive signal and includes a main-signal amplifying circuit that amplifies the drive signal; a preemphasis generating circuit that symmetrically emphasizes a rising portion and a falling portion of the drive signal; a current source that is provided in the main-signal amplifying circuit; and a condenser that couples the main-signal amplifying circuit and the preemphasis generating circuit.
摘要翻译：信号整形电路，其对驱动信号进行整形，并包括放大驱动信号的主信号放大电路; 预加重产生电路，其对称地强调驱动信号的上升部分和下降部分; 设置在主信号放大电路中的电流源; 以及耦合主信号放大电路和预加重产生电路的电容器。

39. 发明申请

US20130170580A1 EMPHASIS CIRCUIT AND TRANSMITTER 有权
标题翻译：振动电路和发射器
公开(公告)号：US20130170580A1
公开(公告)日：2013-07-04
申请号：US13609562
申请日：2012-09-11
申请人： Yukito Tsunoda
发明人： Yukito Tsunoda
IPC分类号： H03K3/00 , H04L25/03
CPC分类号： H04L25/0286
摘要： An emphasis circuit includes: an applying circuit to add an emphasis signal to an input differential signal; a feedback path to feed back a differential output of the applying unit; a comparing circuit to compare a direct current component level of a positive phase signal and of a negative phase signal of the differential signal; a direct current component level controlling circuit to control a direct current component level of at least one of the positive phase signal and the negative phase signal; a delay unit circuit to add a delay to at least one of the fed-backed differential signal to generate the emphasis signal and inputs the emphasis signal into the applying unit; and a dummy load coupled to a positive phase signal output or a negative phase signal output of the applying unit.
摘要翻译：强调电路包括：施加电路，用于将加重信号加到输入差分信号上; 用于反馈施加单元的差分输出的反馈路径; 比较电路，用于比较正相信号和差分信号的负相位信号的直流分量电平; 直流分量电平控制电路，用于控制正相信号和负相位信号中的至少一个的直流分量电平; 延迟单元电路，用于向所述反馈差分信号中的至少一个增加延迟以产生所述加重信号，并将所述加重信号输入到所述施加单元中; 以及耦合到施加单元的正相位信号输出或负相位信号输出的虚拟负载。

40. 发明授权

US08289196B2 Parallel-serial converter 有权
标题翻译：并行串行转换器
公开(公告)号：US08289196B2
公开(公告)日：2012-10-16
申请号：US12985782
申请日：2011-01-06
申请人： Yukito Tsunoda
发明人： Yukito Tsunoda
IPC分类号： H03M9/00 , H04L7/00
CPC分类号： H03M9/00
摘要： A parallel-serial converter includes a converter circuit that converts parallel data into serial data; a first sampling circuit that samples, according to a first clock signal, the serial data output from the converter circuit; a second sampling circuit that samples, according to a second clock signal that is an inverse of the first clock signal, replica data that is synchronized with the serial data; a third sampling circuit that samples, according to plural third signals respectively having different phases, output from the second sampling circuit; and a control circuit that controls sampling timing of the first sampling circuit, based on each output from the third sampling circuit.
摘要翻译：并行串行转换器包括将并行数据转换为串行数据的转换器电路; 第一采样电路，根据第一时钟信号对从转换器电路输出的串行数据进行采样; 第二采样电路，根据与所述第一时钟信号相反的第二时钟信号，与所述串行数据同步的复制数据进行采样; 第三采样电路，根据分别具有不同相位的多个第三信号从第二采样电路输出; 以及控制电路，其基于来自第三采样电路的每个输出来控制第一采样电路的采样定时。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式