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    • 2. 发明授权
    • Optical transmission system
    • 光传输系统
    • US07251072B2
    • 2007-07-31
    • US10635723
    • 2003-08-07
    • Toshihiro OhtaniTsukasa TakahashiEiji IshikawaHiroto IkedaHiroyuki Deguchi
    • Toshihiro OhtaniTsukasa TakahashiEiji IshikawaHiroto IkedaHiroyuki Deguchi
    • H04B10/17
    • H04B10/2937H01S3/302H04B10/0775H04B10/2916H04B2210/078H04B2210/08
    • A reliable optical transmission system with an improved signal control mechanism that avoids abrupt power variations of light beams, thereby preventing optical supervisory channel (OSC) signals from experiencing errors. An optical amplifier amplifies main signals under the control of an optical amplifier controller, which spends a first predetermined time to raise the output power of the optical amplifier up to a desired level. A pump light source produces a pump beam for injection to a fiber-optic transmission line so as to make it serve as an amplifying medium. The pump light source is controlled by a pump light source controller that spends a second predetermined time to raise the pump beam to a desired power level. This stepwise start-up process of the amplifier power and pump beam power prevents OSC signals from experiencing abrupt power variations.
    • 一种具有改进的信号控制机制的可靠的光传输系统,其避免了光束的突然功率变化,从而防止光监控信道(OSC)信号经历错误。 光放大器在光放大器控制器的控制下放大主信号,光放大器控制器花费第一预定时间将光放大器的输出功率提高到期望的水平。 泵浦光源产生用于注射到光纤传输线的泵浦光束,以使其用作放大介质。 泵浦光源由泵浦光源控制器控制,泵控制器花费第二预定时间将泵浦光束升高到期望的功率水平。 放大器功率和泵浦波束功率的逐步启动过程防止OSC信号经历突然的功率变化。
    • 3. 发明授权
    • Optical transmission system
    • 光传输系统
    • US07586672B2
    • 2009-09-08
    • US11808754
    • 2007-06-12
    • Eiji IshikawaHiroto IkedaHiroyuki Deguchi
    • Eiji IshikawaHiroto IkedaHiroyuki Deguchi
    • H04B10/17H04B10/12
    • H04B10/2937H01S3/302H04B10/0775H04B10/2916H04B2210/078H04B2210/08
    • A reliable optical transmission system with an improved signal control mechanism that avoids abrupt power variations of light beams, thereby preventing optical supervisory channel (OSC) signals from experiencing errors. An optical amplifier amplifies main signals under the control of an optical amplifier controller, which spends a first predetermined time to raise the output power of the optical amplifier up to a desired level. A pump light source produces a pump beam for injection to a fiber-optic transmission line so as to make it serve as an amplifying medium. The pump light source is controlled by a pump light source controller that spends a second predetermined time to raise the pump beam to a desired power level. This stepwise start-up process of the amplifier power and pump beam power prevents OSC signals from experiencing abrupt power variations.
    • 一种具有改进的信号控制机制的可靠的光传输系统,其避免了光束的突然功率变化,从而防止光监控信道(OSC)信号经历错误。 光放大器在光放大器控制器的控制下放大主信号,光放大器控制器花费第一预定时间将光放大器的输出功率提高到期望的水平。 泵浦光源产生用于注射到光纤传输线的泵浦光束,以使其用作放大介质。 泵浦光源由泵浦光源控制器控制,泵控制器花费第二预定时间将泵浦光束升高到期望的功率水平。 放大器功率和泵浦波束功率的逐步启动过程防止OSC信号经历突然的功率变化。
    • 4. 发明授权
    • Image processor provided with document detecting means
    • 具有文件检测装置的图像处理器
    • US06169612A
    • 2001-01-02
    • US08274158
    • 1994-07-14
    • Hiroyuki Deguchi
    • Hiroyuki Deguchi
    • H04N104
    • G03G15/605H04N1/00681H04N1/00702H04N1/00708H04N1/00737H04N1/00748H04N1/00753H04N1/00769H04N1/1013H04N1/56H04N2201/0422
    • An image processor has a transparent plate on which a document is placed, and a document cover which covers the document placed thereon. The document cover moves freely between a closed position at which it covers the transparent plate and the document placed thereon and an open position at which it permits the transparent plate to be exposed. Provision is further made of a document illumination source which moves relative to the document placed on the transparent plate, and an image sensor which receives light irregularly reflected by the document that is illuminated by the document illumination source. The image processor further has a document detector which detects the region of the transparent plate where the document exists based on an output signal from the image sensor. The document covering surface of the document cover has a regular reflectance of from 1.5 to 40% and gives a relative intensity of irregularly reflected light as received by the image sensor of from N2.5 to N8.5 in terms of lightness in the Munsell color system. The document detector discriminates whether a document exists on the region of the transparent plate or not in a different manner depending upon whether the document cover is at the closed position or whether the document cover is at the open position.
    • 图像处理器具有放置文件的透明板和覆盖放置在其上的文件的文档盖。 文件盖在其覆盖透明板的封闭位置和放置在其上的文件之间自由移动,并且允许透明板暴露的打开位置。 进一步设置了相对于放置在透明板上的文档移动的文件照明源,以及接收由文件照明源照明的文档不规则反射的光的图像传感器。 图像处理器还具有文件检测器,其基于来自图像传感器的输出信号检测文档存在的透明板的区域。 文件盖的表面的文件的正常反射率为1.5至40%,并且给出了由Munsell颜色的亮度从N2.5到N8.5的图像传感器接收到的不规则反射光的相对强度 系统。 文件检测器根据文件盖是处于关闭位置还是文档盖处于打开位置,以不同的方式鉴别文档是否存在于透明板的区域上。
    • 7. 发明授权
    • Image scanning device
    • 图像扫描装置
    • US08014044B2
    • 2011-09-06
    • US12184803
    • 2008-08-01
    • Yuki ShigaHiroyuki Deguchi
    • Yuki ShigaHiroyuki Deguchi
    • H04N1/04
    • H04N1/00681H04N1/00687H04N1/0071H04N1/00713H04N1/00716H04N1/00737H04N1/00755H04N1/00782H04N1/1017H04N1/193
    • An image scanning device of the present invention includes a platen, an image scanning part that scans an image on the manuscript, a light source that irradiates light from the back side of the platen, a platen cover that is allowed to be positioned in a closed state or in an opened state, a light receiving part that is configured to receive light from the manuscript scanning area on the back side of the platen, a range obtaining part that is configured to obtain range between the amount of received light of the light receiving part in the opened state of the platen cover and the amount of received light of the light receiving part in the closed state of the platen cover, and a manuscript detecting part that is configured to detect existence of the manuscript in a manuscript scanning area of the platen based on the range.
    • 本发明的图像扫描装置包括:台板,扫描原稿上的图像的图像扫描部件,照射来自印版的背面的光的光源;允许定位在封闭的压板盖板 状态或处于打开状态的受光部,被配置为从所述压板的背面的原稿扫描区域接收光的光接收部,其被配置为获得所述受光部的接收光的量之间的范围 压板盖的打开状态的一部分和压纸盖的关闭状态下的受光部的接收光量,以及原稿检测部,其检测原稿扫描区域中的原稿的存在 基于范围的压板。