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    • 124. 发明授权
    • Edge enhancement system and method and imaging system
    • 边缘增强系统及方法与成像系统
    • US07646930B2
    • 2010-01-12
    • US12049989
    • 2008-03-17
    • Eiichiro IkedaShoichi Suzuki
    • Eiichiro IkedaShoichi Suzuki
    • G06K9/40
    • H04N5/208
    • A plurality of bandpass filters extract high frequency components of a digital image signal sampled every predetermined unit, thus generating a plurality of high frequency signals. The high frequency signals are added to produce a resultant high frequency signal. On the basis of the value of the resultant high frequency signal, the maximum value or minimum value detected from the high frequency signals is selected. The resultant high frequency signal and the selected maximum or minimum value are added according to determined weights, so that an enhancement signal is generated. Edge enhancement is performed using the enhancement signal.
    • 多个带通滤波器提取每个预定单元采样的数字图像信号的高频分量,从而产生多个高频信号。 加上高频信号以产生合成的高频信号。 基于所得到的高频信号的值,选择从高频信号检测的最大值或最小值。 所得到的高频信号和所选择的最大值或最小值根据确定的权重相加,从而产生增强信号。 使用增强信号执行边缘增强。
    • 125. 发明申请
    • EDGE ENHANCEMENT SYSTEM AND METHOD AND IMAGING SYSTEM
    • 边缘增强系统和方法与成像系统
    • US20080170797A1
    • 2008-07-17
    • US12049989
    • 2008-03-17
    • Eiichiro IkedaShoichi Suzuki
    • Eiichiro IkedaShoichi Suzuki
    • G06K9/40
    • H04N5/208
    • A plurality of bandpass filters extract high frequency components of a digital image signal sampled every predetermined unit, thus generating a plurality of high frequency signals. The high frequency signals are added to produce a resultant high frequency signal. On the basis of the value of the resultant high frequency signal, the maximum value or minimum value detected from the high frequency signals is selected. The resultant high frequency signal and the selected maximum or minimum value are added according to determined weights, so that an enhancement signal is generated. Edge enhancement is performed using the enhancement signal.
    • 多个带通滤波器提取每个预定单元采样的数字图像信号的高频分量,从而产生多个高频信号。 加上高频信号以产生合成的高频信号。 基于所得到的高频信号的值,选择从高频信号检测的最大值或最小值。 所得到的高频信号和所选择的最大值或最小值根据确定的权重相加,从而产生增强信号。 使用增强信号执行边缘增强。
    • 127. 发明授权
    • Image forming apparatus having spacing roller for maintaining uniform
spacing between image bearing member and developing material supplying
means
    • 图像形成装置具有用于保持图像承载部件和显影材料供给装置之间的均匀间隔的间隔辊
    • US5293199A
    • 1994-03-08
    • US694337
    • 1991-05-01
    • Naomasa SaitoTatsumi FujishimaShoichi Suzuki
    • Naomasa SaitoTatsumi FujishimaShoichi Suzuki
    • G03G15/08G03G21/00
    • G03G15/0817G03G15/0813
    • An image forming apparatus has an image bearing member rotatable in a specified direction, a developing roller for supplying developing material to a latent image formed on the image bearing member, a spacing roller rotatably supported on a shaft of the developing roller and making contact with the edge of the image bearing member in the axial direction, and a seal member having a portion that contacts the image bearing member on the upstream side of the developing roller in the direction of rotating and a portion that contacts the image bearing member on the developing roller side. The spacing roller forms the desired developing gap between the surface of the developing roller and the surface of the image bearing member. The seal member sweeps the surface of the image bearing member so as to mainly prevent the adhesion to the spacing roller of the airborne toner which is in the vicinity of the surface of the image bearing member and the surface of the developing roller. Further, the toner adhering to the surface of the image bearing member is cleaned therefrom by the seal member before the toner reaches the spacing roller. Thus, the precision of the developing gap can be maintained in the desired condition over a long period of time.
    • 图像形成装置具有能够沿指定方向旋转的图像承载部件,用于将显影材料供给到形成在图像承载部件上的潜像的显影辊,可旋转地支撑在显影辊的轴上并与显影辊接触的显影辊 图像承载部件沿轴向的边缘,以及密封部件,其具有在显影辊的上游侧沿着旋转方向与图像承载部件接触的部分,以及与显影辊上的图像承载部件接触的部分 侧。 间隔辊在显影辊的表面和图像承载部件的表面之间形成所需的显影间隙。 密封构件扫掠图像承载构件的表面,以便主要防止粘附在图像承载构件的表面附近和显影辊表面附近的空气调色剂的间隔辊。 此外,在调色剂到达间隔辊之前,通过密封构件清洁附着在图像承载部件表面上的调色剂。 因此,可以在长时间内将显影间隙的精度保持在期望的状态。