公开(公告)号：US5488735A

公开(公告)日：1996-01-30

申请号：US906220

申请日：1992-06-26

申请人： Noboru Tanabe ,  Shigeru Oyanagi ,  Shinichi Baba ,  Katsuji Kaminishi ,  Masaru Nakamura ,  Kazunori Sekido

发明人： Noboru Tanabe ,  Shigeru Oyanagi ,  Shinichi Baba ,  Katsuji Kaminishi ,  Masaru Nakamura ,  Kazunori Sekido

IPC分类号： H01L31/12 ,  H01L33/00 ,  H01L33/06 ,  H01L33/08 ,  H01L33/10 ,  H01L33/20 ,  H01L33/30 ,  H01L33/58 ,  H01L33/60 ,  H04B10/112 ,  H04B10/27 ,  H04B10/275 ,  H04B10/278 ,  H04B10/54 ,  H04B10/556 ,  H04B10/572 ,  H04B10/80 ,  H04Q11/00 ,  G06F13/00

CPC分类号： H04Q11/0003 ,  H04Q2011/0007 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0039 ,  H04Q2011/0052

摘要： An optical interconnection capable of realizing smooth data transmissions among micro-processors provided on a plurality of processor boards. An optical interconnection includes: a series of optical devices, provided on the processor boards separately, each optical device on each processor board being connected with the processor elements provided on that processor board and including a multiplicity of optical element cells for intercepting light signals from a first side of the optical device, transmitting intercepted light signals to a second side of the optical device, and emitting light signals to the second side of the optical device; and an optical path for optically connecting the optical devices such that light signals coming from the second side of one optical device are intercepted at the first side of another optical device.

摘要翻译： 一种能够实现在多个处理器板上提供的微处理器之间的平滑数据传输的光互连。 光互连包括：分开设置在处理器板上的一系列光学器件，每个处理器板上的每个光学器件与设置在该处理器板上的处理器元件连接，并且包括多个光学元件单元，用于截取来自 将遮断的光信号发送到光学装置的第二侧，并将光信号发射到光学装置的第二侧; 以及用于光学连接光学装置的光路，使得来自一个光学装置的第二侧的光信号在另一个光学装置的第一侧被截取。

公开(公告)号：US5444561A

公开(公告)日：1995-08-22

申请号：US14686

申请日：1993-02-08

申请人： Katsuji Kaminishi

发明人： Katsuji Kaminishi

IPC分类号： H04B10/556 ,  H04B10/00 ,  H04L7/00 ,  H04L7/06

CPC分类号： H04B10/2504 ,  H04L7/0008

摘要： An optical transmission apparatus of NRZ modulation system includes a laser driving circuit for deriving a current obtained by adding together an NRZ modulation signal, a D.C. bias, and a clock signal having an amplitude smaller than the bias, a semiconductor laser driven by the laser driving circuit, an optical fiber for transmitting a laser beam from the semiconductor laser to a reception side, a photodetector for detecting a laser beam on the reception side and converting the detected laser beam to an electrical signal, a data regenerating circuit for deriving an NRZ modulation signal from the detected electrical signal, and a clock extracting circuit for extracting the clock signal superposed on the NRZ modulation signal from the detected electrical signal.

摘要翻译： NRZ调制系统的光传输装置包括：激光驱动电路，用于导出通过将NRZ调制信号，DC偏置和具有小于偏置的振幅的时钟信号相加得到的电流;由激光驱动驱动的半导体激光器 电路，用于将激光束从半导体激光器传输到接收侧的光纤，用于检测接收侧的激光束并将所检测的激光束转换为电信号的光电检测器，用于导出NRZ调制的数据再生电路 信号，以及时钟提取电路，用于从检测到的电信号中提取叠加在NRZ调制信号上的时钟信号。

公开(公告)号：US06980068B2

公开(公告)日：2005-12-27

申请号：US10373067

申请日：2003-02-26

申请人： Yasunori Miyazawa ,  Katsuji Kaminishi

发明人： Yasunori Miyazawa ,  Katsuji Kaminishi

IPC分类号： H05K1/14 ,  H01P1/04 ,  H01P5/02 ,  H01P5/08 ,  H01R9/05 ,  H05K1/00 ,  H05K1/02 ,  H05K3/00 ,  H05K3/32 ,  H05K3/34 ,  H05K3/36 ,  H05K3/40 ,  H05K3/42 ,  H01P3/08

CPC分类号： H05K1/0251 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01P1/047 ,  H01P5/02 ,  H01P5/085 ,  H01R9/0515 ,  H01R24/50 ,  H05K1/0222 ,  H05K1/0298 ,  H05K3/0052 ,  H05K3/325 ,  H05K3/3405 ,  H05K3/3447 ,  H05K3/368 ,  H05K3/403 ,  H05K3/42 ,  H05K2201/0311 ,  H05K2201/0715 ,  H05K2201/09618 ,  H05K2201/09809 ,  H05K2201/10303 ,  H05K2201/10356 ,  H01L2924/00014 ,  H01L2924/00

摘要： A cut via is formed in an end of a multilayer circuit board of the first transmission line, and a clearance is provided between the cut via and a ground pattern for achieving an impedance matching between the first and second transmission lines. The cut via of a first transmission line which may be a stripline or a microstrip line, and an electrode of the second transmission line are connected to each other, and ground patterns of the first and second transmission lines are connected to each other. The first and second transmission lines have respective signal lines positioned substantially coaxially with each other.

摘要翻译： 切割通孔形成在第一传输线的多层电路板的端部，并且在切割通孔和接地图案之间设置间隙，以实现第一和第二传输线之间的阻抗匹配。 可以是带状线或微带线的第一传输线的切断通路和第二传输线的电极彼此连接，并且第一和第二传输线的接地图形彼此连接。 第一和第二传输线具有彼此基本同轴地定位的各个信号线。

公开(公告)号：US06690340B2

公开(公告)日：2004-02-10

申请号：US09960813

申请日：2001-09-21

申请人： Shigeyuki Sakura ,  Katsuji Kaminishi

发明人： Shigeyuki Sakura ,  Katsuji Kaminishi

IPC分类号： G09G314

CPC分类号： H04B10/502 ,  H04B10/508

摘要： A light-emitting diode driving circuit according to an embodiment of this invention includes a light-emitting diode, a first current switch circuit connected in series with the light-emitting diode, the first current switch circuit turning on/off a current in accordance with an external input signal input from an input terminal, a pulse current generating circuit connected in parallel with the first current switch circuit, the pulse current generating circuit supplying a pulse current including a pulse width smaller than the pulse width of the external input signal and shaping a leading edge portion of an optical waveform output from the light-emitting diode into a desired optical waveform, and a discharge circuit connected in parallel with the light-emitting diode, the discharge circuit quickly discharging charge stored in the light-emitting diode when the current to the first current switch circuit is turned off.

摘要翻译： 根据本发明实施例的发光二极管驱动电路包括发光二极管，与发光二极管串联连接的第一电流开关电路，第一电流开关电路根据 从输入端子输入的外部输入信号，与第一电流开关电路并联连接的脉冲电流产生电路，脉冲电流产生电路提供包括小于外部输入信号的脉冲宽度的脉冲宽度的脉冲电流和成形 从发光二极管输出到期望的光波形的光波形的前沿部分和与发光二极管并联连接的放电电路，当放电电路快速放电时，放电电路存储在发光二极管中 到第一电流开关电路的电流被关断。

公开(公告)号：US06683490B2

公开(公告)日：2004-01-27

申请号：US10229333

申请日：2002-08-27

申请人： Katsuji Kaminishi

发明人： Katsuji Kaminishi

IPC分类号： G05F110

CPC分类号： H01S5/042

摘要： A reference voltage generating circuit 1 is provided for generating the stable reference voltage Vref against a variation in a supply voltage and an ambient temperature changes. A stabilized voltage generating circuit 2 is provided for generating the stabilized voltage Vg based on the reference voltage Vref. A voltage dividing circuit 4 divides reference voltage Vref. An amplifier circuit 5 amplifies an output voltage of the voltage dividing circuit 4. A current mirror circuit 6 is provided for outputting a current in the opposite direction of the output current of the amplifier circuit 5. A current-voltage conversion resistor 3 is connected between the output terminal of the stabilized voltage generating circuit 2 and the output terminal of the current mirror circuit 6. A buffer amplifier 7 supplies a current feedback type output amplifier circuit 8 with a voltage generated by the resistor 3.

摘要翻译： 基准电压产生电路1用于产生稳定的参考电压Vref以抵抗电源电压和环境温度变化的变化。 提供稳定电压产生电路2，用于基于参考电压Vref产生稳定电压Vg。 分压电路4分压参考电压Vref。 放大器电路5对分压电路4的输出电压进行放大。电流镜电路6用于输出与放大电路5的输出电流相反方向的电流。电流 - 电压转换电阻3连接在 稳定电压产生电路2的输出端和电流镜电路6的输出端。缓冲放大器7向电流反馈型输出放大器电路8提供由电阻3产生的电压。

公开(公告)号：US5777507A

公开(公告)日：1998-07-07

申请号：US625064

申请日：1996-03-29

申请人： Katsuji Kaminishi ,  Nobuyuki Itoh

发明人： Katsuji Kaminishi ,  Nobuyuki Itoh

IPC分类号： G01J1/44 ,  H03K5/1252 ,  H04B10/00 ,  H04B10/40 ,  H04B10/50 ,  H04B10/60 ,  H04L25/03 ,  H04L25/26

CPC分类号： H04B10/695

摘要： An optical receiving circuit comprises a photodetector, a differential transimpedance amplifier, a peak detector, a resistor network circuit and a discriminator. The transimpedance amplifier receives a current pulse converted by the photo-detector and outputs a non-inverting voltage signal and an inverting voltage signal of the same level. A peak detector for detecting a peak value of the non-inverting voltage signal. A resistor network circuit make an additional operations between an output signal from the peak detector and the inverted voltage signal, and between the non-inverting voltage signal and the non-inverting voltage signal, thereby generating two complemental voltage signals, which have the same amplitude and cross each other at a middle point of the amplitude. The discriminator discriminates a crossing potential at which the two complemental voltage signals generated by the resistor network circuit and generates a pulse-shaped signal with a logical level whose state is changed to another logical state at the crossing potential.

摘要翻译： 光接收电路包括光电检测器，差分跨阻放大器，峰值检测器，电阻网络电路和鉴别器。 跨阻放大器接收由光检测器转换的电流脉冲，并输出同相电平的非反相电压信号和反相电压信号。 用于检测非反相电压信号的峰值的峰值检测器。 电阻网络电路在来自峰值检测器的输出信号和反相电压信号之间以及非反相电压信号和非反相电压信号之间进行额外的操作，从而产生具有相同幅度的两个互补电压信号 并在幅度的中点互相交叉。 鉴别器鉴别由电阻网络电路产生的两个互补电压信号的交叉电位，并产生具有逻辑电平的脉冲状信号，该逻辑电平的状态在交叉电位处变为另一逻辑状态。

公开(公告)号：US06856131B2

公开(公告)日：2005-02-15

申请号：US10355092

申请日：2003-01-31

申请人： Yasunori Miyazawa ,  Katsuji Kaminishi ,  Masahiro Yamaguchi ,  Kenichi Arai

发明人： Yasunori Miyazawa ,  Katsuji Kaminishi ,  Masahiro Yamaguchi ,  Kenichi Arai

IPC分类号： G01R33/02 ,  G01R29/08 ,  G01R33/12 ,  H01Q7/00

CPC分类号： G01R29/0878 ,  H01Q7/00

摘要： A magnetic sensor has a monotonic response to high-frequency magnetic strengths in a frequency range up to superhigh frequencies. The magnetic sensor includes a shielded loop coil having a triplate stripline structure. The shielded loop coil has one-turn looped ground patterns formed respectively in a first layer and a fifth layer and connected parallel to each other by a via, and has an inductance L. The one-turn looped ground patterns have end electrodes facing each other across gaps, one of the end electrodes including the via, providing a combined capacitor operable at high frequencies and having a capacitance C. The product L×C of the inductance L and the capacitance C is 2.5×10−20 or less and the maximum outer circumference length of the one-turn looped ground lines is 50 [mm] or less.

摘要翻译： 磁传感器对高频率频率范围内的高频磁力具有单调响应。 磁传感器包括具有三板带状线结构的屏蔽环线圈。 屏蔽环形线圈具有分别形成在第一层和第五层中的单圈环形接地图案，并且通过通孔彼此并联连接，并且具有电感L.单圈环形接地图案具有彼此面对的端电极 跨越间隙，包括通孔的末端电极中的一个，提供可在高频下操作并具有电容C的组合电容器。电感L和电容C的乘积L xC为2.5×10 -20或更小，并且最大外部 单圈环形接地线的圆周长度为50 [mm]以下。

公开(公告)号：US5434426A

公开(公告)日：1995-07-18

申请号：US118811

申请日：1993-09-10

申请人： Hideto Furuyama ,  Hiroshi Hamasaki ,  Mitsuhiro Kushibe ,  Katsuji Kaminishi ,  Tamon Kobayashi ,  Keiji Takaoka

发明人： Hideto Furuyama ,  Hiroshi Hamasaki ,  Mitsuhiro Kushibe ,  Katsuji Kaminishi ,  Tamon Kobayashi ,  Keiji Takaoka

IPC分类号： G02B6/43 ,  H01S3/00 ,  H01S5/00 ,  H01S5/183 ,  H01S5/50 ,  G02B27/00

CPC分类号： H01S5/5072 ,  G02B6/43 ,  H01S5/005 ,  H01S5/0264 ,  H01S5/0267 ,  H01S5/1032 ,  H01S5/1071 ,  H01S5/18308 ,  H01S5/18344 ,  H01S5/18358 ,  H01S5/2027

摘要： Disclosed herein is an optical interconnection device having a light source, a plurality of optical interconnecting elements, and a light-receiving element. The optical interconnecting elements are located on an output side of the light source. Each of the elements has first and second major surfaces and comprises an integral unit made of an optical semiconductor element and a grating lens having concentric annular grooves and concentric annular projections, and two electrodes formed on the first and second major surfaces, respectively. The optical semiconductor element and grating lens of each optical interconnecting element are formed on the first major surface, for emitting or receiving light. The light-receiving element is located on an output side of the optical interconnecting elements. The optical interconnecting elements are arranged at substantially regular intervals, each positioned such that the semiconductor element and the grating lens face to the same direction. The grating lens of each of the optical interconnecting elements has optical characteristic which compensates for light-transmitting characteristic corresponding to the interval between the optical connecting element and the next optical interconnecting element.

摘要翻译： 这里公开了具有光源，多个光学互连元件和光接收元件的光学互连装置。 光学互连元件位于光源的输出侧。 每个元件具有第一和第二主表面，并且包括由光学半导体元件制成的整体单元和具有同心环形槽和同心环形突起的光栅透镜，以及分别形成在第一和第二主表面上的两个电极。 每个光学互连元件的光学半导体元件和光栅透镜形成在第一主表面上，用于发射或接收光。 光接收元件位于光互连元件的输出侧。 光学互连元件以基本上规则的间隔布置，每个位置使得半导体元件和光栅透镜面向相同的方向。 每个光学互连元件的光栅透镜具有光学特性，其补偿对应于光学连接元件和下一个光学互连元件之间的间隔的透光特性。

公开(公告)号：US06724376B2

公开(公告)日：2004-04-20

申请号：US09858757

申请日：2001-05-16

申请人： Shigeyuki Sakura ,  Katsuji Kaminishi

发明人： Shigeyuki Sakura ,  Katsuji Kaminishi

IPC分类号： G09G332

CPC分类号： H04B10/502 ,  H04B10/508

摘要： An LED is an element in which when a voltage pulse applied to the intrinsic diode of an electrical equivalent model reaches a peak value, a current suddenly flows to obtain an optical output proportional to the forward current. By utilizing this property, the LED receives a rectangular voltage pulse having a large-current driving ability at a low output impedance, or a voltage pulse having two high levels. The low level of the voltage pulse is set within a voltage range where the extinction ratio of an output signal from the LED can be maintained. Even in an LED having a large internal capacitance, an increase in power consumption can be minimized, the transient response time can be shortened, high-speed modulation can be performed, and output light almost free from pulse waveform distortion can be obtained.

摘要翻译： LED是当施加到电等效模型的本征二极管的电压脉冲达到峰值时的电流突然流过以获得与正向电流成比例的光输出的元件。 通过利用该特性，LED接收具有低输出阻抗的大电流驱动能力的矩形电压脉冲或具有两个高电平的电压脉冲。 电压脉冲的低电平被设定在可以维持来自LED的输出信号的消光比的电压范围内。 即使在具有大的内部电容的LED中，能够最大限度地降低功耗的增加，也能够缩短瞬态响应时间，能够进行高速调制，能够获得几乎无脉波波形失真的输出光。

公开(公告)号：US06618406B1

公开(公告)日：2003-09-09

申请号：US09340378

申请日：1999-06-28

申请人： Katsuji Kaminishi

发明人： Katsuji Kaminishi

IPC分类号： H01S5042

CPC分类号： H01S5/042 ,  H01S5/0428

摘要： An optical semiconductor diode driver circuit, which is stably operable even with the supply of a source voltage slightly higher than the forward operation voltage of an optical semiconductor diode to be driven and can output switch current and voltage sufficient for driving the optical semiconductor diode, includes a pre-driver circuit operating as a limiting amplifier, and an output circuit responsive to a pulse-shaped voltage output from the pre-driver circuit and outputting a drive pulse current to the optical semiconductor diode as an external load. The output circuit is basically a type of the emitter-coupled amplifier which has either a differential configuration or a similar one to a Schmitt circuit and whose common-emitter loads are composed of a resistor and a variable constant current source to determine a amplitude of the output current pulse with small rise and fall times. Since a variable constant current source is added, the circuit alleviates influences from variations of the impedance of the load and the operating environment without any degradation of high frequency characteristics.

摘要翻译： 一种光半导体二极管驱动电路，其即使在提供稍高于要驱动的光半导体二极管的正向工作电压的源极电压的情况下也可稳定地工作，并且可以输出足以驱动光半导体二极管的开关电流和电压， 作为限幅放大器工作的预驱动电路，以及响应于从预驱动器电路输出的脉冲状电压并将驱动脉冲电流作为外部负载输出到光半导体二极管的输出电路。 输出电路基本上是发射极耦合放大器的一种类型，其具有与施密特电路的差分配置或类似的发射极耦合放大器，其共发射极负载由电阻器和可变恒流源组成，以确定 输出电流脉冲，上升和下降时间小。 由于增加了可变的恒流源，所以该电路减轻了负载的阻抗和操作环境变化的影响，而没有高频特性的任何劣化。