公开(公告)号：USRE41235E1

公开(公告)日：2010-04-20

申请号：US11653419

申请日：2007-01-16

申请人： Yoshinori Miyada ,  Seiji Watanabe

发明人： Yoshinori Miyada ,  Seiji Watanabe

IPC分类号： H03L7/00

CPC分类号： H03L7/113 ,  H03L7/087 ,  H03L7/0891

摘要： A PLL circuit comprises a frequency comparator for detecting a phase difference based on a difference in frequencies between a reproduced data pulse and a clock generated by a VCO; a phase comparator for detecting a difference in phases between the reproduced data pulse and the VCO clock; a selector for selectively outputting a signal supplied from the frequency comparator, a first charge pump for increasing/decreasing the output voltage on the basis of the output from the selector; a second charge pump for increasing/decreasing the output voltage on the basis of the output from the phase comparator; a loop filter for eliminating unnecessary components included in a signal obtained by adding the output from the first charge pump and the output from the second charge pump; and a VCO for generating a clock of a frequency corresponding to the output voltage of the loop filter. In this PLL circuit, when the phase difference between the reproduced data pulse and the VCO clock is within the pull-in range of the phase comparator, the operation of the frequency comparator is restricted by the output of the phase comparator. Therefore, the PLL circuit can perform stable data reading even when the reproduced data pulse has a large amount of clock jitter.

摘要翻译： PLL电路包括：频率比较器，用于基于再现的数据脉冲和由VCO产生的时钟之间的频率差来检测相位差; 用于检测再现数据脉冲和VCO时钟之间的相位差的相位比较器; 选择器，用于选择性地输出从频率比较器提供的信号;第一电荷泵，用于根据选择器的输出增加/减少输出电压; 第二电荷泵，用于根据相位比较器的输出增加/减少输出电压; 环路滤波器，用于消除通过将来自第一电荷泵的输出和来自第二电荷泵的输出相加而获得的信号中包含的不必要的分量; 以及用于产生与环路滤波器的输出电压相对应的频率的时钟的VCO。 在该PLL电路中，当再现的数据脉冲和VCO时钟之间的相位差在相位比较器的拉入范围内时，频率比较器的操作受到相位比较器的输出的限制。 因此，即使当再现的数据脉冲具有大量的时钟抖动时，PLL电路也可以执行稳定的数据读取。

公开(公告)号：US20090261911A1

公开(公告)日：2009-10-22

申请号：US12091245

申请日：2006-11-30

申请人： Seiji Watanabe ,  Takashi Oka ,  Tetsuo Arakawa

发明人： Seiji Watanabe ,  Takashi Oka ,  Tetsuo Arakawa

IPC分类号： H03K3/03

CPC分类号： H03K3/0315 ,  H03B27/00 ,  H03K5/15013

摘要： A multi-phase oscillator includes a plurality of ring oscillators (21) each having a plurality of output ports and each formed by connecting an odd number of inverters (20) in a ring, and a plurality of resistance elements (30) coupling the output ports between the plurality of ring oscillators (21) so that all of the plurality of ring oscillators (21) operate at an identical frequency while keeping a desired phase relationship. The number of the ring oscillators (21) is not limited to an odd number but may be an even number. The multi-phase oscillator changes the state of a succeeding node of a phase coupling to accord with the state of a preceding node of the phase coupling by using the resistance elements (30) as phase coupling devices. If resistors are used as the resistance elements (30), the phase output accuracy greatly improves and high frequency oscillation is possible.

摘要翻译： 多相振荡器包括多个环形振荡器（21），每个环形振荡器（21）具有多个输出端口，并且每个环形振荡器（21）都通过连接奇数个环形反相器（20）和多个电阻元件（30） 多个环形振荡器（21）之间的端口，使得所有多个环形振荡器（21）以相同的频率工作，同时保持期望的相位关系。 环形振荡器（21）的数量不限于奇数，而是可以是偶数。 多相振荡器通过使用电阻元件（30）作为相位耦合器件来改变相位耦合的后续节点的状态，使其与相位耦合的先前节点的状态一致。 如果使用电阻作为电阻元件（30），则相位输出精度大大提高，高频振荡成为可能。

公开(公告)号：US20070245276A1

公开(公告)日：2007-10-18

申请号：US10617931

申请日：2003-07-11

申请人： Tomohiko Imada ,  Seiji Watanabe ,  Toyokazu Shibata

发明人： Tomohiko Imada ,  Seiji Watanabe ,  Toyokazu Shibata

IPC分类号： G06F17/50

CPC分类号： G06F17/5068 ,  G06F17/5072 ,  H01L23/50 ,  H01L2224/16225

摘要： A system for designing connecting terminals of a semiconductor device, having a power supply cell arranging unit configured to arrange power supply cells at some of I/O slots formed in a semiconductor chip, an I/O signal cell arranging unit configured to arrange I/O signal cells at some of the I/O slots where the power supply cells are not arranged, a first connecting net generator configured to generate a first connecting net connecting the I/O slots to bumps formed on the semiconductor chip, a second connecting net generator configured to generate a second connecting net connecting the bumps to external electrodes formed on a package base, and a verifier configured to verify whether the power supply cells, I/O signal cells, and first and second connecting nets violate predetermined design rules.

摘要翻译： 一种用于设计半导体器件的连接端子的系统，具有：电源单元配置单元，被配置为在半导体芯片中形成的一些I / O槽中布置电源单元; I / O信号单元布置单元，被配置为布置I / 在未布置电源单元的一些I / O槽中的O信号单元，被配置为产生将I / O槽连接到形成在半导体芯片上的凸块的第一连接网的第一连接网发生器，第二连接网 发电机，其被配置为产生将凸块连接到形成在封装基座上的外部电极的第二连接网，以及验证器，其被配置为验证电源单元，I / O信号单元以及第一和第二连接网是否违反预定的设计规则。

公开(公告)号：US20060176089A1

公开(公告)日：2006-08-10

申请号：US11375814

申请日：2006-03-15

申请人： Shinichi Yamane ,  Seiji Watanabe

发明人： Shinichi Yamane ,  Seiji Watanabe

IPC分类号： H03L7/06

CPC分类号： H03L7/085 ,  H03L7/0807 ,  H03L7/087 ,  H03L7/0898 ,  H04L7/0087

摘要： This invention relates to a phase-locked loop circuit and a data reproduction apparatus, which can reduce a processing time that is required for initial adjustment in the data reproduction apparatus. In a digital data reproduction apparatus having two control functions, i.e., phase and duty adjustments for binarized data, the phase comparison with one edge is performed only at the phase adjustment by means of a phase-locked loop circuit 33 having an edge switching means 4 which controls the phase comparator 1. The phase comparator 1 inputs the binarized and a bit synchronous clock, and switches the output between a comparison result with one edge, i.e., a rising edge or a falling edge of binarized data, and a comparison result with both edges.

公开(公告)号：US06528982B1

公开(公告)日：2003-03-04

申请号：US09697721

申请日：2000-10-27

申请人： Naoshi Yanagisawa ,  Shiro Dosho ,  Kazuhiko Nishikawa ,  Seiji Watanabe ,  Takahiro Bokui

发明人： Naoshi Yanagisawa ,  Shiro Dosho ,  Kazuhiko Nishikawa ,  Seiji Watanabe ,  Takahiro Bokui

IPC分类号： G01R2500

CPC分类号： G01R25/00

摘要： A jitter detector obtains a phase difference between input signals as a digital value to make jitter between the signals easily detectable. The jitter detector includes comparison pulse generator, periodic signal generator, counter and arithmetic unit. The comparison pulse generator outputs one phase difference comparison pulse after another. Each phase difference comparison pulse has a width representing the phase difference between first and second input signals. The periodic signal generator outputs a periodic signal every time a value obtained by accumulating the widths of the phase difference comparison pulses exceeds a predetermined value. Receiving the periodic signal and a clock signal with a period shorter than that of the periodic signal, the counter counts the number of pulses of the clock signal during one period of the periodic signal and outputs a resultant count. And the arithmetic unit detects and outputs a variation in the count as jitter between the first and second input signals.

摘要翻译： 抖动检测器获得输入信号之间的相位差作为数字值，使信号之间的抖动容易检测。 抖动检测器包括比较脉冲发生器，周期信号发生器，计数器和算术单元。 比较脉冲发生器输出一个相差差值比较脉冲。 每个相位差比较脉冲具有表示第一和第二输入信号之间的相位差的宽度。 每当通过累加相位差比较脉冲的宽度获得的值超过预定值时，周期性信号发生器输出周期信号。 接收到周期信号和周期信号的周期信号的时钟信号，计数器在周期信号的一个周期内对时钟信号的脉冲数进行计数，并输出结果计数。 并且算术单元检测并输出计数的变化，作为第一和第二输入信号之间的抖动。

公开(公告)号：US06169625A

公开(公告)日：2001-01-02

申请号：US09264046

申请日：1999-03-08

申请人： Seiji Watanabe ,  Shohei Yamaguchi

发明人： Seiji Watanabe ,  Shohei Yamaguchi

IPC分类号： G02F103

CPC分类号： G02F1/3515 ,  G02F1/3523

摘要： An optical switch includes a saturable absorption type optical element provided with a saturable absorption region, and a band-block optical filter to which signal light composed of at least one wavelength light having an optical power in the absorption region of the saturable absorption type optical element and control light whose optical power is set such that a total power of the signal light and the control light comes within a transmission region of the saturable absorption type optical element and which is composed of either one of two wavelength lights different from that of the signal light are inputted and which transmits therethrough the signal light and the control light which is composed only of one of the wavelength lights and outputs the transmitted signal light and control light to the saturable absorption type-optical element. ON/OFF of the signal light is controlled by varying the wavelength of the control light.

摘要翻译： 光开关包括设置有可饱和吸收区域的可饱和吸收型光学元件和带状光学滤光器，其中由可饱和吸收型光学元件的吸收区域中具有光学功率的至少一个波长光组成的信号光 以及控制光，其光功率被设定为使得信号光和控制光的总功率进入可饱和吸收型光学元件的透射区域内，并且由与信号的不同的两个波长光中的任一个组成 光被输入并且通过其中的信号光和仅由波长光之一组成的控制光，并将透射信号光输出并控制光到可饱和吸收型光学元件。 通过改变控制光的波长来控制信号光的ON / OFF。

公开(公告)号：US6137605A

公开(公告)日：2000-10-24

申请号：US9495

申请日：1998-01-20

申请人： Seiji Watanabe

发明人： Seiji Watanabe

IPC分类号： H04J14/00 ,  H04B10/07 ,  H04B10/29 ,  H04B10/293 ,  H04B10/296 ,  H04B10/564 ,  H04B10/572 ,  H04J14/02

CPC分类号： H04B10/294 ,  H04J14/0221

摘要： It is the object of the invention to provide a WDM optical transmission system, in which the transmission performance of the system is optimized by keeping an optical power per an optical signal constant, independent of the number of the optical signals. An alternating current (AC) voltage of a frequency f.sub.1 is supplied to a burst generator, and control bursts S.sub.1 to S.sub.n (frequency f.sub.1) with different transmitting times are generated by the burst generator. These control bursts are respectively supplied to laser diodes (LDs) provided with control circuits, and directly modulate the output of the LDs. Moreover, the output of the LDs are respectively modulated by external optical modulators, multiplexed by an optical coupler and emitted to an optical fiber. The optical amplification repeaters detects the number (n) of the bursts and so controls its output power that an optical power of each of the WDM optical signals maintains a predetermined level independent of the number (n) of the optical signals.

摘要翻译： 本发明的目的是提供一种WDM光传输系统，其中通过保持每个光信号的光功率恒定而不依赖于光信号的数量来优化系统的传输性能。 频率f1的交流（AC）电压被提供给脉冲串发生器，并且由脉冲发生器产生具有不同发送时间的控制脉冲串S1至Sn（频率f1）。 这些控制脉冲串分别提供给设置有控制电路的激光二极管（LD），并直接调制LD的输出。 此外，LD的输出分别由外部光调制器调制，由光耦合器复用并发射到光纤。 光放大中继器检测脉冲串的数量（n），因此控制其输出功率，即每个WDM光信号的光功率保持独立于光信号数目（n）的预定电平。

公开(公告)号：US6108468A

公开(公告)日：2000-08-22

申请号：US32110

申请日：1998-02-27

申请人： Tomoyuki Kaneko ,  Seiji Watanabe

发明人： Tomoyuki Kaneko ,  Seiji Watanabe

IPC分类号： G02B6/293 ,  G02B6/34 ,  H04B10/27 ,  H04B10/29 ,  H04B10/293 ,  H04B10/564 ,  H04B10/572 ,  H04J14/00 ,  H04J14/02 ,  G02B6/28 ,  H01J14/02

CPC分类号： G02B6/2932 ,  H04J14/0201 ,  H04J14/0213 ,  H04J14/0206 ,  H04J14/0217 ,  H04J14/0221

摘要： In an optical transmission system, an optical branching device is in use, the number of original transmission lights decreases or level of transmission lights deteriorates for some cause or other. Since output of optical amplifier is predetermined, when the number of transmission lights reduces, level of remaining transmission light is changed, thus departing from optimum operation condition. There is provided an optical branching device including a fiber grating for reflecting light with a wave length different from transmission light, at the time of malfunction such as disconnection, it causes a light with a wave length different from the transmission light to transmit from terminal station or branching station, thus maintaining the level of the transmission light to prescribed level. When the level of the transmission lights deteriorates, it causes the level of transmission light from the branch office to be adjusted. As a result, the level of respective transmission lights is maintained to the original level so that optimum operation condition is maintained, thus the level among the respective transmission lights is capable of being adjusted.

摘要翻译： 在光传输系统中，正在使用光分路装置，由于某些原因或其他原因，原始传输光的数量减少或传输光的电平劣化。 由于光放大器的输出是预定的，所以当传输光的数量减少时，剩余的传输光的电平改变，从而脱离最佳的操作状态。 提供了一种光分支装置，其包括用于反射具有与透射光不同的波长的光的光纤光栅，在诸如断开的故障时，使得具有不同于传输光的波长的光从终端站发射 或分支站，从而将传输光的水平保持在规定的水平。 当传输灯的电平变差时，会导致来自分支机构的传输光的电平被调整。 结果，将各个传输光的水平维持在原来的水平，从而保持最佳的操作状态，从而能够调节各个传输光之间的电平。

公开(公告)号：US5692678A

公开(公告)日：1997-12-02

申请号：US432942

申请日：1995-05-01

申请人： Genichi Ishibashi ,  Kuniaki Sato ,  Hiroyuki Nakashima ,  Keiji Matsuda ,  Satoshi Shimizu ,  Seiji Watanabe

发明人： Genichi Ishibashi ,  Kuniaki Sato ,  Hiroyuki Nakashima ,  Keiji Matsuda ,  Satoshi Shimizu ,  Seiji Watanabe

IPC分类号： B05B7/20 ,  F23D14/22 ,  B05B1/24

CPC分类号： B05B7/205 ,  F23D14/22

摘要： A flame spraying burner melts or partially melts with combustion heat, a spray material comprising a powdered fire-resisting material to thermally spray a damaged portion of a furnace wall or the like. The flame spraying burner includes a burner nozzle body having a central passage for supplying oxygen-contained gas, the central passage having a projecting leading end, and a plurality of fuel gas supply passages formed around the central passage. Each of the plurality of fuel gas supply passages has a leading end recessed from the leading end of the central passage. A cylindrical burner tile is positioned around the leading end of the fuel gas supply passages and extends to at least the leading end of the central passage. A plurality of oxygen jetting ports are formed in the radial direction around the leading end of the nozzle cap.

摘要翻译： 火焰喷涂燃烧器熔化或部分地与燃烧热熔融，喷涂材料包括粉末状耐火材料，以热喷涂炉壁等的损坏部分。 火焰喷射燃烧器包括燃烧器喷嘴体，其具有用于供应含氧气体的中心通道，中心通道具有突出的前端，以及围绕中心通道形成的多个燃料气体供应通道。 多个燃料气体供给通道中的每一个具有从中心通道的前端凹入的前端。 圆柱形燃烧器瓦片围绕燃料气体供应通道的前端设置并延伸至至少中心通道的前端。 沿着喷嘴盖的前端的径向形成有多个氧气喷射口。

公开(公告)号：US5502810A

公开(公告)日：1996-03-26

申请号：US20372

申请日：1993-02-22

申请人： Seiji Watanabe

发明人： Seiji Watanabe

IPC分类号： H03F3/20 ,  H04B3/36 ,  H04B10/077 ,  H04B10/079 ,  H04B10/2507 ,  H04B10/293 ,  H04B10/54 ,  H04B10/548 ,  H04B10/564 ,  H04B10/58 ,  H04B10/80 ,  H04B10/16

CPC分类号： H04B10/2931 ,  H04B10/0777 ,  H04B10/2912 ,  H04B2210/074

摘要： An optical transmission system of the present invention has a tributary station and a plurality of repeater stations. The tributary station supplies a transmission signal having a data signal and a control signal. Each of the repeater stations detects the control signal from the transmission signal, and controls its own amplification factor in accordance with the control signal.

摘要翻译： 本发明的光传输系统具有支路站和多个中继站。 支路站提供具有数据信号和控制信号的发送信号。 每个中继站从传输信号检测控制信号，并根据控制信号控制其自身的放大系数。