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    • 3. 发明授权
    • Image forming apparatus with pulse width modulated laser driver
    • 具有脉宽调制激光驱动器的图像形成装置
    • US5742323A
    • 1998-04-21
    • US13803
    • 1993-02-04
    • Satoru Fukushima
    • Satoru Fukushima
    • B41J2/44H01S5/06H01S5/068H04N1/40B41J2/47B41J2/435G02B26/02G03B27/72
    • H04N1/4005H04N1/40037
    • An image forming apparatus which can form gray-scale images comprises a pulse width modulation device for outputting a pulse width modulation signal according to image data, a light emitting device for emitting modulated light in response to the pulse width modulation signal outputted from the pulse width modulation device, a detecting device for detecting quantity of the modulated light, a current control device for controlling, at a time when the light emitting device emits modulated light continuously, current to be supplied to the light emitting device in accordance with the quantity of light detected by the detecting device, and a condition control device for controlling a condition of the pulse width modulation device according to the quantity of light detected by the detecting device at a time when the light emitting device emits the modulated light according to the pulse width modulation signal.
    • 可以形成灰度图像的图像形成装置包括用于根据图像数据输出脉宽调制信号的脉宽调制装置,响应于从脉冲宽度输出的脉宽调制信号发射调制光的发光装置 调制装置,用于检测调制光量的检测装置;电流控制装置,用于在发光装置连续发射调制光时控制根据光量提供给发光装置的电流 由检测装置检测的条件控制装置,以及条件控制装置,用于根据在发光装置根据脉冲宽度调制发射调制光时的检测装置检测到的光量来控制脉宽调制装置的状态 信号。
    • 4. 发明授权
    • Image forming apparatus having control means for controlling image
forming condition
    • 图像形成装置具有用于控制图像形成条件的控制装置
    • US5305060A
    • 1994-04-19
    • US52531
    • 1993-04-29
    • Satoru Fukushima
    • Satoru Fukushima
    • G03G15/00G03G15/01G03G15/02
    • G03G15/5037G03G15/0105G03G15/0266
    • An image forming apparatus includes an electrophotographic photosensitive member exhibiting non-linear relation between charge amount thereof and a potential of an electrostatic latent image formed thereon; a developing device for developing the electrostatic latent image; a latent image forming condition setting device for automatically setting the latent image forming condition in accordance with an ambient condition; the setting device including an input device for inputting information relating to a target latent image potential preset in accordance with the ambient condition; wherein when the latent image forming condition is determined on the basis of the non-linear property which is stored, a latent image is actually formed on the photosensitive member with charging conditions which are away in opposite detections from a charging condition calculated from the ambient condition, and a relation between the charge amount of the photosensitive member and the potential of the electrostatic latent image is determined by line approximation on the basis of measurement in the actual latent image formation, and then the charge amount is determined from the linear approximation.
    • 图像形成装置包括电荷感光构件,其电荷量与形成在其上的静电潜像的电位呈非线性关系; 用于显影静电潜像的显影装置; 潜像形成条件设定装置,用于根据环境条件自动设定潜像形成条件; 所述设定装置包括用于输入与根据所述环境条件预设的目标潜像电位有关的信息的输入装置; 其中,当根据所存储的非线性特性来确定潜像形成条件时,在从环境条件计算出的充电条件下与相反检测距离的充电条件实际形成在感光部件上的潜像 ,并且基于实际潜像形成中的测量,通过线性近似来确定感光构件的电荷量与静电潜像的电位之间的关系,然后根据线性近似来确定电荷量。
    • 6. 发明授权
    • Anti-skid brake system for wheeled vehicle
    • 轮式车辆防滑制动系统
    • US5364175A
    • 1994-11-15
    • US13426
    • 1993-02-04
    • Shinsuke SakaneHiroyuki IchikawaSatoru FukushimaChiaki Hamada
    • Shinsuke SakaneHiroyuki IchikawaSatoru FukushimaChiaki Hamada
    • B60T8/66B60T8/1763B60T8/70B60T8/74
    • B60T8/17636
    • An anti-skid brake system for a wheeled vehicle including speed sensors for detecting each speed of road wheels of the vehicle and for producing an electric signal indicative of the detected speed of the road wheels, an electronic control apparatus arranged to be applied with the electric signal from the speed sensors for producing a control signal in accordance with conditions of a travel road of the vehicle in braking operation, and an electrically operated actuator arranged to be activated under control of the control apparatus for controlling a hydraulic braking pressure applied to each brake cylinder of the road wheels in response to the control signal, wherein an acceleration speed of the road wheels is calculated in response to the electric signal from the speed sensors, a stepped portion on the travel road is detected by determination of the fact that the detected speed of the road wheels becomes higher than a predetermined reference speed within a predetermined time immediately after activation of the actuator and that the calculated acceleration speed of the road wheels becomes smaller than a predetermined negative value and larger than a predetermined positive value within the predetermined time, and the actuator is deactivated upon detection of the stepped portion on the travel road.
    • 一种用于轮式车辆的防滑制动系统,包括用于检测车辆的车轮速度的速度传感器和用于产生指示车轮检测速度的电信号;电子控制装置,被布置成施加电力 来自用于在制动操作中根据车辆的行驶道路的条件产生控制信号的速度传感器的信号;以及电动致动器,其被布置成在用于控制施加到每个制动器的液压制动压力的控制装置的控制下被启动 响应于控制信号的车轮的气缸,其中响应于来自速度传感器的电信号计算车轮的加速速度,通过确定检测到的事实来检测行驶道路上的台阶部分 在预定时间内,车轮的速度变得高于预定的基准速度 y,并且所计算出的车轮加速度在预定时间内变得小于预定的负值并且大于预定的正值,并且在检测到行驶道路上的阶梯部分时致动器被停用 。
    • 7. 发明授权
    • Image processing method and apparatus for achieving tone reproduction suited to the image
    • 用于实现适合于图像的色调再现的图像处理方法和装置
    • US06546131B1
    • 2003-04-08
    • US08440879
    • 1995-05-15
    • Yoshito MizoguchiSono GuSatoru Fukushima
    • Yoshito MizoguchiSono GuSatoru Fukushima
    • G03F308
    • H04N1/6027H04N1/4074
    • Digital image data corresponding to an original read in by a CCD is stored in a page memory in pixel units, and a CPU reads the stored image data and creates a histogram. For an original having many high-density portions, an image is formed using a LOG conversion table which generates density data that enables reproduction of the tonality of the high-density portions. For an original which is comparatively faint, an image is formed using a LOG conversion table which generates density data that assures tone reproduction up to the maximum density of the original even if high-density portions cannot be reproduced. As a result, tone reproduction suited to the original image can be realized at all times.
    • 与由CCD读取的原稿相对应的数字图像数据以像素为单位存储在页面存储器中,CPU读取存储的图像数据并创建直方图。 对于具有许多高密度部分的原稿,使用生成能够再现高密度部分的色调的浓度数据的LOG转换表形成图像。 对于相对微弱的原稿,使用LOG转换表形成图像,该LOG转换表生成密度数据,即使高密度部分不能被再现,也能确保色调再现达到原稿的最大浓度。 结果,可以始终实现适合于原始图像的色调再现。
    • 8. 发明授权
    • Anti-skid control system for rear wheels
    • 后轮防滑控制系统
    • US5447364A
    • 1995-09-05
    • US298970
    • 1994-09-02
    • Shinsuke SakaneHiroyuki IchikawaSatoru FukushimaChiaki Hamada
    • Shinsuke SakaneHiroyuki IchikawaSatoru FukushimaChiaki Hamada
    • B60T8/1755B60T8/1761B60T8/50B60T8/58
    • B60T8/17616B60T8/50
    • The invention is directed to an arrangement for controlling a braking force applied to each of road wheels of a vehicle depending upon a braking condition, with a hydraulic braking pressure supplied to each of the wheel brake cylinders through an actuator. The actuator is controlled by a braking force controller into which output signals of wheel speed sensors are fed. The hydraulic braking pressure applied to each of the wheel brake cylinders is controlled by the braking force controller in accordance with each wheel speed. And, it is determined whether the vehicle is turning or not. If the vehicle is turning, the hydraulic braking pressure in a wheel brake cylinder operatively connected to one of the rear road wheels positioned at the outer side is controlled such that a decreasing operation of the pressure is restrained for at least a predetermined time period.
    • 本发明涉及一种用于根据制动条件控制施加到车辆的每个车轮的制动力的装置,其中通过致动器向每个车轮制动缸提供液压制动压力。 执行器由制动力控制器控制,其中馈送有车轮速度传感器的输出信号。 施加到每个车轮制动缸的液压制动压力由制动力控制器根据每个车轮速度控制。 并且,确定车辆是否转向。 如果车辆正在转动,则可操作地连接到位于外侧的后轮之一的车轮制动缸中的液压制动压力被控制为使得压力的降低操作被抑制至少预定的时间段。
    • 9. 发明授权
    • Anti-skid control system for driven wheels
    • 用于驱动轮的防滑控制系统
    • US5401081A
    • 1995-03-28
    • US13085
    • 1993-02-03
    • Shinsuke SakaneHiroyuki IchikawaSatoru FukushimaChiaki Hamada
    • Shinsuke SakaneHiroyuki IchikawaSatoru FukushimaChiaki Hamada
    • B60T8/175B60T8/1761B60T8/34B60T8/50F02D29/02B60T8/10
    • B60T8/348B60T8/175B60T8/5037B60T8/5093
    • The invention is directed to an arrangement for controlling a braking force applied to each of driven wheels and non-driven wheels depending upon a braking condition, with a hydraulic braking pressure supplied to each of wheel brake cylinders through an actuator. The actuator is controlled by the braking force controller into which output signals of wheel speed sensors are fed. The braking force controller is arranged to control the hydraulic braking pressure supplied to each of the wheel brake cylinders. When one driven wheel is under the anti-skid control, it is determined whether a difference speed between the driven wheels is greater than a predetermined value. If it is determined that the difference speed is greater than the predetermined value, the actuator is actuated to restrain the hydraulic braking pressure from being supplied to the wheel brake cylinder operatively connected to the other driven wheel, e.g., to hold the hydraulic braking pressure supplied to the wheel brake cylinder, or to reduce a rate of increase of the hydraulic braking pressure.
    • 本发明涉及一种用于根据制动条件控制施加到每个从动轮和非从动轮的制动力的装置,其中通过致动器向每个车轮制动缸提供液压制动压力。 执行器由制动力控制器控制,其中馈送有车轮速度传感器的输出信号。 制动力控制器被布置成控制供应到每个车轮制动缸的液压制动压力。 当一个从动轮处于防滑控制下时,确定从动轮之间的差速是否大于预定值。 如果确定差速度大于预定值,则致动器被致动以限制液压制动压力被供应到可操作地连接到另一个从动轮的车轮制动缸,例如以保持供应的液压制动压力 到车轮制动缸,或者降低液压制动压力的增加率。
    • 10. 发明授权
    • Image forming apparatus having means for preventing toner deposit on
photosensitive member
    • 图像形成装置具有防止调色剂沉积在感光构件上的装置
    • US5194901A
    • 1993-03-16
    • US718287
    • 1991-06-20
    • Satoru FukushimaKenichi Takeda
    • Satoru FukushimaKenichi Takeda
    • G03G15/01G03G15/06G03G15/16G03G21/06
    • G03G15/0131G03G2215/0177
    • An image forming apparatus includes a movable photosensitive member; a toner image forming device for forming a toner image on the photosensitive member; a transfer device for electrostatically transferring the toner image from the photosensitive member to a transfer material at a transfer position; and a transfer material carrying member for carrying the transfer material to feed the transfer material to the transfer position. The transfer device transfers the image while the transfer material is on the transfer material carrying member, and after the image is transferred, the transfer material having the toner image transferred thereon and carried on the transfer material carrying member is contacted to the photosensitive member. There is also provided a charger for charging the photosensitive member, wherein at least a part of the photosensitive member making the contact is charged by the charger in a period between its passage through the transfer position and the contact, so as to be given an electric potential at which the toner image forming device does not deposit the toner to the photosensitive member.
    • 图像形成装置包括可动光敏元件; 用于在感光构件上形成调色剂图像的调色剂图像形成装置; 用于将调色剂图像从感光构件静电转印到转印位置处的转印材料的转印装置; 以及用于承载转印材料以将转印材料供给到转印位置的转印材料承载构件。 转印装置在转印材料在转印材料承载部件上传送图像,并且在图像转印之后,具有转印在其上并承载在转印材料承载部件上的调色剂图像的转印材料与感光部件接触。 还提供了一种用于对感光构件充电的充电器,其中使感光构件的至少一部分在通过转印位置和接触之间的期间由充电器充电,从而被赋予电 调色剂图像形成装置不将调色剂沉积到感光构件的电位。