会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 81. 发明授权
    • Optical fiber distortion measuring apparatus and optical fiber distortion measuring method
    • 光纤失真测量仪和光纤失真测量方法
    • US06366348B1
    • 2002-04-02
    • US09551448
    • 2000-04-18
    • Yasushi SatoHaruyoshi UchiyamaToshio Kurashima
    • Yasushi SatoHaruyoshi UchiyamaToshio Kurashima
    • G01N2188
    • G01M11/319
    • The present invention provides an optical fiber distortion measuring apparatus and optical fiber distortion measuring method which make it possible to measure the amount of distortion of an optical fiber efficiently and in a short period of time. The time change waveform when a light pulse having a frequency of &ngr;1 is applied is compared with initial data (the time change waveform obtained in a case in which there is no distortion). Then, the light intensity L1 at a position Dx at which the light intensities do not agree is obtained. Next, the time change waveform is measured when a light pulse having a frequency of &ngr;2 is applied, and the light intensity L2 at position Dx is obtained. After this, the loss (resulting from distortion) in light intensities L1 and L2 is corrected, and light intensities LC1 and LC2 are obtained. Curve calculating unit 17 obtains a second-order curve which is a curve resulting from the parallel movement of a curve approximating the spectrum waveform of the initial data, and which contains the (&ngr;1, LC1) and (&ngr;2, LC2) described above. The peak frequency detecting unit 12 obtains the light frequency exhibiting a maximum value in the light intensity in the second-order curve. The distortion amount calculating unit 13 calculates the amount of distortion based on this light frequency.
    • 本发明提供一种光纤失真测量装置和光纤失真测量方法,其可以在短时间内有效地测量光纤的失真量。 将施加了频率为ngr的光脉冲的时间变化波形与初始数据(在没有失真的情况下获得的时间变化波形)进行比较。 然后,获得光强度不一致的位置Dx处的光强度L1。 接下来,当施加具有频率为&ngr.2的光脉冲时测量时变波形,并且获得位置Dx处的光强度L2。 之后,校正亮度L1和L2中的损失(由失真引起的),并且获得光强度LC1和LC2。 曲线计算单元17获得二阶曲线,其是由与初始数据的频谱波形近似的曲线并行运动产生的曲线,并且包含(&ngr; 1,LC1)和(&ngr; 2,LC2) 如上所述。 峰值频率检测单元12获得在二阶曲线中呈现出光强度的最大值的光频率。 失真量计算单元13基于该光频率来计算失真量。
    • 84. 发明授权
    • OTDR measurement device
    • OTDR测量装置
    • US5777727A
    • 1998-07-07
    • US864446
    • 1997-05-28
    • Yasushi SatoHaruyoshi Uchiyama
    • Yasushi SatoHaruyoshi Uchiyama
    • G01M11/00G01J11/00G01M11/02G01N21/84G01N21/88
    • G01J11/00
    • An OTDR measurement device employs optical heterodyne wave detection to perform measurement on optical fibers. Optical pulses are incident on a measuring optical fiber, which in turn outputs backward scattering light. The device performs heterodyne wave detection on the backward scattering light as well as probe light whose frequency is set in proximity to a frequency of the backward scattering light, thus producing a detection voltage. The device provides a differential amplifier which performs amplification on a difference between the detection voltage and a reference voltage to produce a difference signal. An A/D converter converts the difference signal to a digital signal. Square addition is performed on the digital signal to produce a mean square signal representing property of the measuring optical fiber. Herein, calculations are performed on the mean square signal to produce a reference signal, which is then converted to the reference voltage. Herein, the reference signal is produced based on a reference value which is determined in advance such that the difference signal corresponds to an intermediate value of a voltage conversion range of the A/D converter under a state where only the probe light is incident on the device. Moreover, the reference signal is automatically changed to correct a shift of the reference voltage due to disturbance factors such as variations of temperature.
    • OTDR测量装置采用光外差波检测来对光纤进行测量。 光脉冲入射到测量光纤上,测量光纤又输出反向散射光。 该装置对后向散射光进行外差波检测以及将频率设定在靠近反向散射光的频率的探测光,从而产生检测电压。 该器件提供了一种差分放大器,其对检测电压和参考电压之间的差进行放大以产生差分信号。 A / D转换器将差分信号转换成数字信号。 对数字信号进行平方加法,以产生表示测量光纤特性的均方根信号。 这里,对均方根信号进行计算以产生参考信号,然后将其转换为参考电压。 这里,参考信号是基于预先确定的参考值产生的,使得差分信号对应于在只有探测光入射到其上的A / D转换器的电压转换范围的中间值 设备。 此外,参考信号被自动改变以校正由于诸如温度变化的干扰因素引起的参考电压的偏移。
    • 85. 发明授权
    • Bubble jet recording apparatus with processing circuit for tone
gradation recording
    • 具有用于音调灰度记录的处理电路的气泡喷射记录装置
    • US5521621A
    • 1996-05-28
    • US180831
    • 1994-01-12
    • Ichiro EndoYasushi SatoSeiji SaitoTakashi NakagiriShigeru Ohno
    • Ichiro EndoYasushi SatoSeiji SaitoTakashi NakagiriShigeru Ohno
    • B41J2/05B41J2/135B41J2/195B41J2/21B41J2/205
    • B41J2/0458B41J2/04593B41J2/195B41J2/2128
    • A recording apparatus comprises an inlet for accepting a liquid to be delivered to an outlet orifice through a liquid flow path. Liquid is supplied to the inlet for flow through the liquid flow path to a heating element, which heats liquid in the liquid flow path. Heating is sufficient to cause a change of state of the liquid (that is, to generate a bubble) and produce a force acting on the liquid which overcomes the surface tension of liquid at the orifice and thereby projects a droplet of liquid from the orifice. The temperature of the heating element is raised at each actuation to a temperature above the maximum temperature at which the liquid in the liquid flow path is subjected only to nucleate boiling so as to promote substantially instantaneous transfer of heat to the liquid proximate to the heating element and to retard the transfer of heat from the heating element to liquid at other locations in the liquid flow path. A processing circuit changes either the size or number of the projected droplets to effect tone gradation recording.
    • 记录装置包括用于接收通过液体流动路径输送到出口孔的液体的入口。 液体被供应到入口以流过液体流动路径到加热元件,加热元件加热液体流动路径中的液体。 加热足以引起液体状态的变化(即产生气泡)并产生作用在液体上的力,其克服了孔处液体的表面张力,从而从孔突出液滴。 加热元件的温度在每个致动时升高到高于液体流动路径中的液体仅经受核沸腾的最高温度的温度,以便促使热量基本上瞬时转移到靠近加热元件的液体 并且阻止在液体流路中的其它位置处的热量从加热元件传递到液体。 处理电路改变投影液滴的大小或数量,以进行色调灰度记录。
    • 87. 发明授权
    • CCD imaging system with two extended horizontal registers
    • CCD成像系统具有两个扩展的水平寄存器
    • US5384596A
    • 1995-01-24
    • US238966
    • 1994-05-05
    • Atsushi KobayashiMakoto OngaMasatoshi SaseYasushi Sato
    • Atsushi KobayashiMakoto OngaMasatoshi SaseYasushi Sato
    • H01L27/148H04N5/363H04N5/365H04N5/372H04N5/3728H04N5/378H04N5/335
    • H04N5/37213H04N5/3653H04N5/3658H04N5/3728
    • In order to prevent a horizontal stripe and a flicker from taking place due to a gain difference between two circuit systems (channels), the solid state imager of the present invention includes a pilot signal generating means provided within a solid state image pickup element for allowing two output units to generate pilot signals of the same level and a gain correcting circuit provided outside of said solid state image pickup element for comparing levels of the pilot signals passed through the two circuit systems and correcting a gain of one circuit system if the two pilot signals have a level difference therebetween. Further, in a solid state imager of the present invention, a pilot signal for detecting gains of two circuit systems which process signals from two output units of a solid state image pickup element is inserted into a video signal without modifying the rule with respect to the signal timing so that signal charges are supplied from a pilot signal generating means to respective horizontal registers so as to output the pilot signal during the dummy bit output period.
    • 为了防止由于两个电路系统(通道)之间的增益差引起的水平条纹和闪烁,本发明的固态成像器包括设置在固态图像拾取元件内的导频信号产生装置,用于允许 两个输出单元以产生相同电平的导频信号,以及增益校正电路,设置在所述固态图像拾取元件之外,用于比较通过两个电路系统的导频信号的电平,并校正一个电路系统的增益,如果两个导​​频 信号之间具有电平差。 此外,在本发明的固态成像器中,用于检测处理来自固态图像拾取元件的两个输出单元的信号的两个电路系统的增益的导频信号被插入到视频信号中,而不修改相对于 信号定时,使得信号电荷从导频信号发生装置提供给各个水平寄存器,以在虚拟位输出周期期间输出导频信号。
    • 89. 发明授权
    • Tone generating apparatus utilizing preprogrammed fade-in and fade-out
characteristics
    • 音调发生装置利用预编程的淡入和淡出特性
    • US5284080A
    • 1994-02-08
    • US693450
    • 1991-04-29
    • Atsushi NoguchiYasushi Sato
    • Atsushi NoguchiYasushi Sato
    • G10H7/02G10H1/057G10H7/00G10H1/04
    • G10H7/008
    • A tone generating apparatus comprises a wave memory for consecutively storing first tone wave data acquired by performing pulse code modulation on a tone waveform in a first predetermined interval starting at an attack of a musical tone, second tone wave data provided by adding that tone wave data which is obtained by performing pulse code modulation on a tone waveform in a second predetermined interval following the first predetermined interval and is then weighted with a fade-out characteristic and that tone wave data which is acquired by synthesizing waveform components of a tone waveform in a third predetermined interval following the second predetermined interval and is then weighted with a face in-characteristic after being linked for the second predetermined interval, and third tone wave data produced by synthesizing waveform components of a tone waveform in a third predetermined interval following the second predetermined interval based on a characteristic of the tone waveform in the third predetermined interval. The first tone wave data, the second tone wave data and the third tone wave data are read out once in the named order from the wave memory, and then the third tone wave data is repeatedly read out, thereby generating a tone signal.
    • 乐音产生装置包括一个波形存储器,用于连续地存储从音调的攻击开始的第一预定间隔中对音调波形执行脉冲编码调制获得的第一音调数据;第二音调波数据,通过将音调波数据 其通过对第一预定间隔之后的第二预定间隔中的音调波形执行脉冲编码调制获得,然后用淡出特性加权,并且通过合成音调波形的波形分量获得的音调波数据 在第二预定间隔之后的第三预定间隔,然后在第二预定间隔被链接之后用面对特征值加权,并且通过合成在第二预定间隔之后的第三预定间隔中合成乐音波形的波形分量而产生的第三乐音波数据 基于音调波形的特征的间隔 在第三预定间隔中。 第一音波数据,第二音波数据和第三乐音波数据以波形存储器中的所述顺序读出一次,然后重复读出第三音波数据,从而产生音调信号。